Integer mode not working on MacOS Tahoe (no sound during playback)

Antoine · September 17, 2025, 12:33pm

We have been able to reproduce the issue. As we speak, there have been some changes in the core audio of the latest macOS version, given the problem encountered by third-party apps like ours.

In the case of the Meridian, and probably a lot of the devices having the issue (like the SMSL), we can see this:

In Tahoe:

2 ch Non-mixable linear PCM Interleaved 24 little endian Signed Integer aligned low in 32bit 192kHz

In Sequoia:

2 ch Non-mixable linear PCM Interleaved 24 little endian Signed Integer aligned high in 32bit 192kHz

This indicates changes made by Apple in the driver, and in such a manner, we will try our best to do a fix for it.

However, please keep in mind that this issue will need to be addressed by Apple, hopefully very soon.

ThijsA · September 17, 2025, 5:11pm

Perhaps this information helps.

Since I installed Tahoe, I experience a heavily (not just slightly) distorted sound when playing back an audio file with Audirvana Origin 2.6.2 (20602) on a Mac Mini with an Apple M2 chip and Integer mode On. When I switch Integer Mode toOff, it plays again.

With good old Audirvana 3.5.50 (I still use it for I love the way I can easily modify tags simultaneously for many files) same file is played well with 'Optimize system for playback On

Blendax74 · September 17, 2025, 5:29pm

Same here with me. Latest Audirvana studio (please find system/playback data below) won’t playback any DSD files with “Integer mode = On” anymore on MacOS 26 Tahoe (@ThijsA : Thanks for the tip above! - did not get this to work before…)

Audirvana Studio 2.11.3 (21103)

Running on Mac mini (2023), Apple M2

macOS Version 26.0 (Build 25A354) ARM64 with 16GB physical RAM

Connected account of : R***** T*****g

NETWORK
Status: available
Local network access: allowed

LOADING/DECODING:
Max audio buffer size: 11160MB
Polarity Inversion:
Globally: OFF
Per track: ON

SIGNAL PROCESSING:
Internal EQ: OFF
Effect Plugins: NOT ACTIVE

UPSAMPLING:
SoX with Power Of Two upsampling
SoX filter parameters
Bandwidth at 0dB = 99.5%
Filter max length = 30000
Anti-aliasing = 100
Phase = 49%

AUDIO VOLUME:
Replay Gain: by track
Max allowed volume: 100
SW volume control: OFF

LIBRARY SETTINGS:
Sync list: 1 folders
AUTO: /Volumes/Musik/
Sync folders at startup: YES
iTunes/Music library synchronization: not synchronized
Sort and display order: de
Library database path: /Users/thaetig/Library/Application Support/Audirvana/AudirvanaDatabase.sqlite

Local audio files fingerprinting
Tracks with no MBID: 10033

Remote Control server:
Listening on
en1 IPv6: fd6e:3f0b:2ea2:7d4d:1c75:e608:94d3:8d65
en1 IPv4: 192.168.0.11
on port 49234

ACTIVE STREAMING SERVICES
TIDAL: Connected as PREMIUM

APPEARANCE SETTINGS:
UI theme: dark
Font size: regular
Language: Systemsprache
Show album covers in tracks list: yes
Source list sorted:
Lokal
Meine Musik
Streaming
Radios
Podcasts
Startup view: Lokale Bibliothek: Alben
Show local extended in source list: yes
Use media keys: yes
Use media keys for volume control: yes
Use Apple Remote: yes
Number of paired remotes: 1
Remote pairing code required: yes
Screen saver disabled: yes

=================== AUDIO DEVICE ========================

Active method: Local

Max. memory for audio buffers: 11160MB

Local Audio Engine: CoreAudio
Exclusive access: ON
Integer mode: OFF
Use max I/O buffer size: ON
Actual I/O buffer frame size: 4096

Preferred device:
Hegel Music Systems Hegel H390 USB
Model UID:Hegel H390 USB:20B1:30CF
UID:AppleUSBAudioEngine:Hegel Music Systems:Hegel H390 USB:110000:1

Currently playing in standard 32bit float mode
Device: 2ch Mixable linear PCM Interleaved 32bits little endian Signed Float, 8 bytes per frame 705.6kHz

Active Sample Rate: 705.6kHz
Hog Mode is on

Bridge settings:
Sample rate limitation: 384kHz
Sample rate switching latency: 1s
Limit bitdepth to 24bit: OFF
Mute during sample rate change: ON

Selected device:Hegel H390 USB
Manufacturer: Hegel Music Systems
Model name: Hegel Music Systems Hegel H390 USB
Model UID: Hegel H390 USB:20B1:30CF
UID: AppleUSBAudioEngine:Hegel Music Systems:Hegel H390 USB:110000:1
USB Vendor ID: 0x20b1
USB Product ID: 0x30cf
ID 0x96

10 available sample rates up to 768000Hz
44100
48000
88200
96000
176400
192000
352800
384000
705600
768000
Audio buffer frame size : 15 to 4096 frames
Current I/O buffer frame size : 4096

Volume Control
Physical: Yes
Virtual: Yes
Max volume alert: Disabled

MQA capability
Auto-detect MQA devices: Yes
MQA Decoder device

DSD capability
DSD via PCM 1.1

Device audio channels
Preferred stereo channels L:1 R:2
Channel bitmap: Ox3, layout:
Channel 0 mapped to 0
Channel 1 mapped to 1

Audio channels in use
Number of channels: 2
Use as stereo device only: No
Simple stereo device: Yes

1 output streams:
Number of active channels: 2, in 1 stream(s)
Channel #0 :Stream 0 channel 0
Channel #1 :Stream 0 channel 1

Stream ID 0x97 2 channels starting at 1
40 virtual formats:
2 ch Mixable linear PCM Interleaved 32 little endian Signed Float 768kHz
2 ch Mixable linear PCM Interleaved 32 little endian Signed Float 705.6kHz
2 ch Mixable linear PCM Interleaved 32 little endian Signed Float 384kHz
2 ch Mixable linear PCM Interleaved 32 little endian Signed Float 352.8kHz
2 ch Mixable linear PCM Interleaved 32 little endian Signed Float 192kHz
2 ch Mixable linear PCM Interleaved 32 little endian Signed Float 176.4kHz
2 ch Mixable linear PCM Interleaved 32 little endian Signed Float 96kHz
2 ch Mixable linear PCM Interleaved 32 little endian Signed Float 88.2kHz
2 ch Mixable linear PCM Interleaved 32 little endian Signed Float 48kHz
2 ch Mixable linear PCM Interleaved 32 little endian Signed Float 44.1kHz
2 ch Non-mixable linear PCM Interleaved 32 little endian Signed Integer 768kHz
2 ch Non-mixable linear PCM Interleaved 32 little endian Signed Integer 705.6kHz
2 ch Non-mixable linear PCM Interleaved 32 little endian Signed Integer 384kHz
2 ch Non-mixable linear PCM Interleaved 32 little endian Signed Integer 352.8kHz
2 ch Non-mixable linear PCM Interleaved 32 little endian Signed Integer 192kHz
2 ch Non-mixable linear PCM Interleaved 32 little endian Signed Integer 176.4kHz
2 ch Non-mixable linear PCM Interleaved 32 little endian Signed Integer 96kHz
2 ch Non-mixable linear PCM Interleaved 32 little endian Signed Integer 88.2kHz
2 ch Non-mixable linear PCM Interleaved 32 little endian Signed Integer 48kHz
2 ch Non-mixable linear PCM Interleaved 32 little endian Signed Integer 44.1kHz
2 ch Non-mixable linear PCM Interleaved 24 little endian Signed Integer aligned low in 32bit 768kHz
2 ch Non-mixable linear PCM Interleaved 24 little endian Signed Integer aligned low in 32bit 705.6kHz
2 ch Non-mixable linear PCM Interleaved 24 little endian Signed Integer aligned low in 32bit 384kHz
2 ch Non-mixable linear PCM Interleaved 24 little endian Signed Integer aligned low in 32bit 352.8kHz
2 ch Non-mixable linear PCM Interleaved 24 little endian Signed Integer aligned low in 32bit 192kHz
2 ch Non-mixable linear PCM Interleaved 24 little endian Signed Integer aligned low in 32bit 176.4kHz
2 ch Non-mixable linear PCM Interleaved 24 little endian Signed Integer aligned low in 32bit 96kHz
2 ch Non-mixable linear PCM Interleaved 24 little endian Signed Integer aligned low in 32bit 88.2kHz
2 ch Non-mixable linear PCM Interleaved 24 little endian Signed Integer aligned low in 32bit 48kHz
2 ch Non-mixable linear PCM Interleaved 24 little endian Signed Integer aligned low in 32bit 44.1kHz
2 ch Non-mixable linear PCM Interleaved 16 little endian Signed Integer 768kHz
2 ch Non-mixable linear PCM Interleaved 16 little endian Signed Integer 705.6kHz
2 ch Non-mixable linear PCM Interleaved 16 little endian Signed Integer 384kHz
2 ch Non-mixable linear PCM Interleaved 16 little endian Signed Integer 352.8kHz
2 ch Non-mixable linear PCM Interleaved 16 little endian Signed Integer 192kHz
2 ch Non-mixable linear PCM Interleaved 16 little endian Signed Integer 176.4kHz
2 ch Non-mixable linear PCM Interleaved 16 little endian Signed Integer 96kHz
2 ch Non-mixable linear PCM Interleaved 16 little endian Signed Integer 88.2kHz
2 ch Non-mixable linear PCM Interleaved 16 little endian Signed Integer 48kHz
2 ch Non-mixable linear PCM Interleaved 16 little endian Signed Integer 44.1kHz

60 physical formats
2 ch Mixable linear PCM Interleaved 32 little endian Signed Integer 768kHz
2 ch Mixable linear PCM Interleaved 32 little endian Signed Integer 705.6kHz
2 ch Mixable linear PCM Interleaved 32 little endian Signed Integer 384kHz
2 ch Mixable linear PCM Interleaved 32 little endian Signed Integer 352.8kHz
2 ch Mixable linear PCM Interleaved 32 little endian Signed Integer 192kHz
2 ch Mixable linear PCM Interleaved 32 little endian Signed Integer 176.4kHz
2 ch Mixable linear PCM Interleaved 32 little endian Signed Integer 96kHz
2 ch Mixable linear PCM Interleaved 32 little endian Signed Integer 88.2kHz
2 ch Mixable linear PCM Interleaved 32 little endian Signed Integer 48kHz
2 ch Mixable linear PCM Interleaved 32 little endian Signed Integer 44.1kHz
2 ch Mixable linear PCM Interleaved 24 little endian Signed Integer aligned low in 32bit 768kHz
2 ch Mixable linear PCM Interleaved 24 little endian Signed Integer aligned low in 32bit 705.6kHz
2 ch Mixable linear PCM Interleaved 24 little endian Signed Integer aligned low in 32bit 384kHz
2 ch Mixable linear PCM Interleaved 24 little endian Signed Integer aligned low in 32bit 352.8kHz
2 ch Mixable linear PCM Interleaved 24 little endian Signed Integer aligned low in 32bit 192kHz
2 ch Mixable linear PCM Interleaved 24 little endian Signed Integer aligned low in 32bit 176.4kHz
2 ch Mixable linear PCM Interleaved 24 little endian Signed Integer aligned low in 32bit 96kHz
2 ch Mixable linear PCM Interleaved 24 little endian Signed Integer aligned low in 32bit 88.2kHz
2 ch Mixable linear PCM Interleaved 24 little endian Signed Integer aligned low in 32bit 48kHz
2 ch Mixable linear PCM Interleaved 24 little endian Signed Integer aligned low in 32bit 44.1kHz
2 ch Mixable linear PCM Interleaved 16 little endian Signed Integer 768kHz
2 ch Mixable linear PCM Interleaved 16 little endian Signed Integer 705.6kHz
2 ch Mixable linear PCM Interleaved 16 little endian Signed Integer 384kHz
2 ch Mixable linear PCM Interleaved 16 little endian Signed Integer 352.8kHz
2 ch Mixable linear PCM Interleaved 16 little endian Signed Integer 192kHz
2 ch Mixable linear PCM Interleaved 16 little endian Signed Integer 176.4kHz
2 ch Mixable linear PCM Interleaved 16 little endian Signed Integer 96kHz
2 ch Mixable linear PCM Interleaved 16 little endian Signed Integer 88.2kHz
2 ch Mixable linear PCM Interleaved 16 little endian Signed Integer 48kHz
2 ch Mixable linear PCM Interleaved 16 little endian Signed Integer 44.1kHz
2 ch Non-mixable linear PCM Interleaved 32 little endian Signed Integer 768kHz
2 ch Non-mixable linear PCM Interleaved 32 little endian Signed Integer 705.6kHz
2 ch Non-mixable linear PCM Interleaved 32 little endian Signed Integer 384kHz
2 ch Non-mixable linear PCM Interleaved 32 little endian Signed Integer 352.8kHz
2 ch Non-mixable linear PCM Interleaved 32 little endian Signed Integer 192kHz
2 ch Non-mixable linear PCM Interleaved 32 little endian Signed Integer 176.4kHz
2 ch Non-mixable linear PCM Interleaved 32 little endian Signed Integer 96kHz
2 ch Non-mixable linear PCM Interleaved 32 little endian Signed Integer 88.2kHz
2 ch Non-mixable linear PCM Interleaved 32 little endian Signed Integer 48kHz
2 ch Non-mixable linear PCM Interleaved 32 little endian Signed Integer 44.1kHz
2 ch Non-mixable linear PCM Interleaved 24 little endian Signed Integer aligned low in 32bit 768kHz
2 ch Non-mixable linear PCM Interleaved 24 little endian Signed Integer aligned low in 32bit 705.6kHz
2 ch Non-mixable linear PCM Interleaved 24 little endian Signed Integer aligned low in 32bit 384kHz
2 ch Non-mixable linear PCM Interleaved 24 little endian Signed Integer aligned low in 32bit 352.8kHz
2 ch Non-mixable linear PCM Interleaved 24 little endian Signed Integer aligned low in 32bit 192kHz
2 ch Non-mixable linear PCM Interleaved 24 little endian Signed Integer aligned low in 32bit 176.4kHz
2 ch Non-mixable linear PCM Interleaved 24 little endian Signed Integer aligned low in 32bit 96kHz
2 ch Non-mixable linear PCM Interleaved 24 little endian Signed Integer aligned low in 32bit 88.2kHz
2 ch Non-mixable linear PCM Interleaved 24 little endian Signed Integer aligned low in 32bit 48kHz
2 ch Non-mixable linear PCM Interleaved 24 little endian Signed Integer aligned low in 32bit 44.1kHz
2 ch Non-mixable linear PCM Interleaved 16 little endian Signed Integer 768kHz
2 ch Non-mixable linear PCM Interleaved 16 little endian Signed Integer 705.6kHz
2 ch Non-mixable linear PCM Interleaved 16 little endian Signed Integer 384kHz
2 ch Non-mixable linear PCM Interleaved 16 little endian Signed Integer 352.8kHz
2 ch Non-mixable linear PCM Interleaved 16 little endian Signed Integer 192kHz
2 ch Non-mixable linear PCM Interleaved 16 little endian Signed Integer 176.4kHz
2 ch Non-mixable linear PCM Interleaved 16 little endian Signed Integer 96kHz
2 ch Non-mixable linear PCM Interleaved 16 little endian Signed Integer 88.2kHz
2 ch Non-mixable linear PCM Interleaved 16 little endian Signed Integer 48kHz
2 ch Non-mixable linear PCM Interleaved 16 little endian Signed Integer 44.1kHz

Local devices found : 4
Device #0: ID 0x83 SONY TV *00
Manufacturer: SNY
Model UID: 4DD903F9-0000-0000-011B-0103806C3D78
UID: 4DD903F9-0000-0000-011B-0103806C3D78
Model name: SNY SONY TV *00
Device #1: ID 0x96 Hegel H390 USB
Manufacturer: Hegel Music Systems
Model UID: Hegel H390 USB:20B1:30CF
UID: AppleUSBAudioEngine:Hegel Music Systems:Hegel H390 USB:110000:1
USB Vendor ID: 0x20b1
USB Product ID: 0x30cf
Model name: Hegel Music Systems Hegel H390 USB
Device #2: ID 0x5d Mac mini-Lautsprecher
Manufacturer: Apple Inc.
Model UID: Speaker
UID: BuiltInSpeakerDevice
Model name: Apple Inc. Mac mini-Lautsprecher
Device #3: ID 0x43 Multiausgangsgerät
Manufacturer: Apple Inc.
Model UID: ~:AMS2_StackedOutput:0
UID: ~:AMS2_StackedOutput:0
Model name: Apple Inc. Multiausgangsgerät

UPnP

UPnP network interface
Available Network interfaces:
WLAN

UPnP devices found : 4
Device #0: ID 0x0 : BRAVIA4KGB-94[DLNA]
UID: uuid:4d9d881c-b822-4fef-9e78-ca5e6e8bd257
Location: http://192.168.0.94:3500/
Manufacturer: SoftMedia Inc.
Model name: AirReceiver
Device #1: ID 0x0 : KD-49XD8005
UID: uuid:23456789-1234-1010-8000-104FA8CBC359
Location: http://192.168.0.94:52323/MediaRenderer.xml
Manufacturer: Sony Corporation
Model name: MediaRenderer
Device #2: ID 0x0 : 48OLED935/12
UID: uuid:F00DBABE-AA5E-BABA-DADA-8641E1571CE1
Location: http://192.168.0.95:49153/nmrDescription.xml
Manufacturer: Philips
Model name: Philips TV DMR
Device #3: ID 0x0 : Hegel-H390
UID: uuid:6163d4c2-1dd2-11b2-a3ea-8f522eaff9ab
Location: http://192.168.0.80:38400/description.xml
Manufacturer: Hegel
Model name: H390

Chromecast

Chromecast devices found : 2
Device #0: KD-49XD8005
ID: 3d2ad494e2e91afe252a83b0bf262b2f
Model name: BRAVIA 4K GB
Device #1: 48OLED935/12
ID: 5940e37bd5f383ad2c89760975d03e49
Model name: TPM191E

Reynaldo · September 17, 2025, 10:47pm

I’m using a Mac Mini M2 with only Audirvana Origin 2.6.2 and macOS Tahoe, no other programs.
I use FLAC and DSD files and haven’t noticed any problems.
I upsample all my FLAC files to DXD.

TonyC · September 17, 2025, 10:56pm

Havn’t used Origin for a few weeks. Since then, installed Tahoe but Origin sees nothing to play. Files are in a folder on Desktop. Have tried deleting app and re-installing. Also Shut Down. Help! Audirvava Origin is a brick.

Djm1960 · September 18, 2025, 10:12am

Interesting quote from forum on the Tahoe beta in relation to beta 8. If correct may explain why my Chord Dacs and KEF LS50’s WII work as they are 32 bit capable (The KEFS only when networked) Same issue with integer mode reported on J River forum……

“Still not fixed Core Audio Integer Mode forcing 32 bit float even if the DAC doesn’t support it and wants 16 or 24 bit integer. Exclusive audio was one of the main reasons I am dailying a mac instead of a windows pc, and now that feature is partially broken.”

sridavid · September 18, 2025, 1:52pm

Wondering why Audirvana 3.5 might still work on Tahoe through the same DAC, but not Studio. As another poster reported, the old Audirvana works with full system optimisation and in integer mode. How could this be when both versions interact with the same CoreAudio code?

Djm1960 · September 18, 2025, 2:20pm

Good point but the issue is impacting users of J River also with integer mode not working so has to be a core audio/DAC issue as it is not specific to AS/AO alone. Audirvana keep their IP well guarded so only they could be able to understand the differing experience with 3.5 and AS/AO. I’m sure they will enlighten us of the root cause soon enough………

sridavid · September 19, 2025, 12:42am

Still waiting to hear from Audirvana, especially as I cannot stream Presto hi-res through Audirvana 3.5.x. If you’re monitoring, please fix!

RunHomeSlow · September 19, 2025, 1:58am

Audirvana 3.5 is not supported from a long time now…
don’t get too much hope

The thing i am thinking is why the old version still has better feature still working from Origin or Studio? even the remote is better on old version, and it was not even good then

sridavid · September 19, 2025, 5:07am

Audirvana 3.5 was an absolutely superb piece of software, designed by a Mac lover, who’s moved on to allegedly greener pastures.

Antoine · September 19, 2025, 8:13am

For those that do not have the issue on the 3.5, can you please post your debug info ?

sridavid · September 19, 2025, 10:41am

Audirvana Studio 2.11.3 (21103)

Running on MacBook Pro (16-inch, 2021), Apple M1 Pro

macOS Version 26.0 (Build 25A354) ARM64 with 16GB physical RAM

Connected account of : A P David

NETWORK
Status: available
Local network access: allowed

LOADING/DECODING:
Max audio buffer size: 3002MB
Polarity Inversion:
Globally: OFF
Per track: OFF

SIGNAL PROCESSING:
Internal EQ: OFF
Effect Plugins: NOT ACTIVE

UPSAMPLING:
r8brain not in use
r8brain filter parameters
Bandwidth = 99.5%
Stop band attenuation 218dB
Phase linear

AUDIO VOLUME:
Replay Gain: None
Max allowed volume: 100
SW volume control: OFF

LIBRARY SETTINGS:
Sync list: 3 folders
AUTO: /Volumes/Muse/DSD FLAC
AUTO: /Volumes/Muse/Music/Music
AUTO: /Volumes/Muse/SACD iso
Sync folders at startup: YES
iTunes/Music library synchronization: not synchronized
Sort and display order: en
Library database path: /Users/amirthanayagamdavid/Library/Application Support/Audirvana/AudirvanaDatabase.sqlite

Local audio files fingerprinting
Tracks with no MBID: 19667

Remote Control server:
Listening on
en7 IPv6: fda0:74d3:4483:db4a:87e:c7a1:4d38:876
en7 IPv6: 2600:8800:e08e:6800:1881:9688:2284:8cb1
en7 IPv4: 192.168.0.114
en7 IPv6: 2600:8800:e08e:6800::e011
on port 61050

ACTIVE STREAMING SERVICES

APPEARANCE SETTINGS:
UI theme: dark
Font size: regular
Language: System language
Show album covers in tracks list: yes
Source list sorted:
Local
My Music
Streaming
Radios
Podcasts
Startup view: Last displayed view
Show local extended in source list: yes
Use media keys: yes
Use media keys for volume control: yes
Use Apple Remote: yes
Number of paired remotes: 2
Remote pairing code required: yes
Screen saver disabled: yes

=================== AUDIO DEVICE ========================

Active method: Local

Max. memory for audio buffers: 3002MB

Local Audio Engine: CoreAudio
Exclusive access: ON
Integer mode: ON
Use max I/O buffer size: ON
Actual I/O buffer frame size: 512

Preferred device:
Holo Audio Holo Audio UAC2.0 Gen2 Enhanced
Model UID:Holo Audio UAC2.0 Gen2 Enhanced:152A:87C0
UID:AppleUSBAudioEngine:Holo Audio:Holo Audio UAC2.0 Gen2 Enhanced:2110000:1

Active Sample Rate: 44.1kHz
Hog Mode is off

Bridge settings:
Sample rate limitation: none
Sample rate switching latency: none
Limit bitdepth to 24bit: OFF
Mute during sample rate change: ON

Selected device:Holo Audio UAC2.0 Gen2 Enhanced
Manufacturer: Holo Audio
Model name: Holo Audio UAC2.0 Gen2 Enhanced
Model UID: Holo Audio UAC2.0 Gen2 Enhanced:152A:87C0
UID: AppleUSBAudioEngine:Holo Audio:Holo Audio UAC2.0 Gen2 Enhanced:2110000:1
USB Vendor ID: 0x152a
USB Product ID: 0x87c0
ID 0x59

12 available sample rates up to 1536000Hz
44100
48000
88200
96000
176400
192000
352800
384000
705600
768000
1411200
1536000
Audio buffer frame size : 14 to 4096 frames
Current I/O buffer frame size : 512

Volume Control
Physical: Yes
Virtual: Yes
Max volume alert: Disabled

MQA capability
Auto-detect MQA devices: Yes
Not automatically detected, user set to not MQA

DSD capability
DSD via PCM 1.1

Device audio channels
Preferred stereo channels L:1 R:2
Channel bitmap: Ox3, layout:
Channel 0 mapped to 0
Channel 1 mapped to 1

Audio channels in use
Number of channels: 2
Use as stereo device only: No
Simple stereo device: Yes

1 output streams:
Number of active channels: 2, in 1 stream(s)
Channel #0 :Stream 0 channel 0
Channel #1 :Stream 0 channel 1

Stream ID 0x5a 2 channels starting at 1
36 virtual formats:
2 ch Mixable linear PCM Interleaved 32 little endian Signed Float 1536kHz
2 ch Mixable linear PCM Interleaved 32 little endian Signed Float 1411.2kHz
2 ch Mixable linear PCM Interleaved 32 little endian Signed Float 768kHz
2 ch Mixable linear PCM Interleaved 32 little endian Signed Float 705.6kHz
2 ch Mixable linear PCM Interleaved 32 little endian Signed Float 384kHz
2 ch Mixable linear PCM Interleaved 32 little endian Signed Float 352.8kHz
2 ch Mixable linear PCM Interleaved 32 little endian Signed Float 192kHz
2 ch Mixable linear PCM Interleaved 32 little endian Signed Float 176.4kHz
2 ch Mixable linear PCM Interleaved 32 little endian Signed Float 96kHz
2 ch Mixable linear PCM Interleaved 32 little endian Signed Float 88.2kHz
2 ch Mixable linear PCM Interleaved 32 little endian Signed Float 48kHz
2 ch Mixable linear PCM Interleaved 32 little endian Signed Float 44.1kHz
2 ch Non-mixable linear PCM Interleaved 24 little endian Signed Integer aligned low in 32bit 1536kHz
2 ch Non-mixable linear PCM Interleaved 24 little endian Signed Integer aligned low in 32bit 1411.2kHz
2 ch Non-mixable linear PCM Interleaved 24 little endian Signed Integer aligned low in 32bit 768kHz
2 ch Non-mixable linear PCM Interleaved 24 little endian Signed Integer aligned low in 32bit 705.6kHz
2 ch Non-mixable linear PCM Interleaved 24 little endian Signed Integer aligned low in 32bit 384kHz
2 ch Non-mixable linear PCM Interleaved 24 little endian Signed Integer aligned low in 32bit 352.8kHz
2 ch Non-mixable linear PCM Interleaved 24 little endian Signed Integer aligned low in 32bit 192kHz
2 ch Non-mixable linear PCM Interleaved 24 little endian Signed Integer aligned low in 32bit 176.4kHz
2 ch Non-mixable linear PCM Interleaved 24 little endian Signed Integer aligned low in 32bit 96kHz
2 ch Non-mixable linear PCM Interleaved 24 little endian Signed Integer aligned low in 32bit 88.2kHz
2 ch Non-mixable linear PCM Interleaved 24 little endian Signed Integer aligned low in 32bit 48kHz
2 ch Non-mixable linear PCM Interleaved 24 little endian Signed Integer aligned low in 32bit 44.1kHz
2 ch Non-mixable linear PCM Interleaved 16 little endian Signed Integer 1536kHz
2 ch Non-mixable linear PCM Interleaved 16 little endian Signed Integer 1411.2kHz
2 ch Non-mixable linear PCM Interleaved 16 little endian Signed Integer 768kHz
2 ch Non-mixable linear PCM Interleaved 16 little endian Signed Integer 705.6kHz
2 ch Non-mixable linear PCM Interleaved 16 little endian Signed Integer 384kHz
2 ch Non-mixable linear PCM Interleaved 16 little endian Signed Integer 352.8kHz
2 ch Non-mixable linear PCM Interleaved 16 little endian Signed Integer 192kHz
2 ch Non-mixable linear PCM Interleaved 16 little endian Signed Integer 176.4kHz
2 ch Non-mixable linear PCM Interleaved 16 little endian Signed Integer 96kHz
2 ch Non-mixable linear PCM Interleaved 16 little endian Signed Integer 88.2kHz
2 ch Non-mixable linear PCM Interleaved 16 little endian Signed Integer 48kHz
2 ch Non-mixable linear PCM Interleaved 16 little endian Signed Integer 44.1kHz

48 physical formats
2 ch Mixable linear PCM Interleaved 24 little endian Signed Integer aligned low in 32bit 1536kHz
2 ch Mixable linear PCM Interleaved 24 little endian Signed Integer aligned low in 32bit 1411.2kHz
2 ch Mixable linear PCM Interleaved 24 little endian Signed Integer aligned low in 32bit 768kHz
2 ch Mixable linear PCM Interleaved 24 little endian Signed Integer aligned low in 32bit 705.6kHz
2 ch Mixable linear PCM Interleaved 24 little endian Signed Integer aligned low in 32bit 384kHz
2 ch Mixable linear PCM Interleaved 24 little endian Signed Integer aligned low in 32bit 352.8kHz
2 ch Mixable linear PCM Interleaved 24 little endian Signed Integer aligned low in 32bit 192kHz
2 ch Mixable linear PCM Interleaved 24 little endian Signed Integer aligned low in 32bit 176.4kHz
2 ch Mixable linear PCM Interleaved 24 little endian Signed Integer aligned low in 32bit 96kHz
2 ch Mixable linear PCM Interleaved 24 little endian Signed Integer aligned low in 32bit 88.2kHz
2 ch Mixable linear PCM Interleaved 24 little endian Signed Integer aligned low in 32bit 48kHz
2 ch Mixable linear PCM Interleaved 24 little endian Signed Integer aligned low in 32bit 44.1kHz
2 ch Mixable linear PCM Interleaved 16 little endian Signed Integer 1536kHz
2 ch Mixable linear PCM Interleaved 16 little endian Signed Integer 1411.2kHz
2 ch Mixable linear PCM Interleaved 16 little endian Signed Integer 768kHz
2 ch Mixable linear PCM Interleaved 16 little endian Signed Integer 705.6kHz
2 ch Mixable linear PCM Interleaved 16 little endian Signed Integer 384kHz
2 ch Mixable linear PCM Interleaved 16 little endian Signed Integer 352.8kHz
2 ch Mixable linear PCM Interleaved 16 little endian Signed Integer 192kHz
2 ch Mixable linear PCM Interleaved 16 little endian Signed Integer 176.4kHz
2 ch Mixable linear PCM Interleaved 16 little endian Signed Integer 96kHz
2 ch Mixable linear PCM Interleaved 16 little endian Signed Integer 88.2kHz
2 ch Mixable linear PCM Interleaved 16 little endian Signed Integer 48kHz
2 ch Mixable linear PCM Interleaved 16 little endian Signed Integer 44.1kHz
2 ch Non-mixable linear PCM Interleaved 24 little endian Signed Integer aligned low in 32bit 1536kHz
2 ch Non-mixable linear PCM Interleaved 24 little endian Signed Integer aligned low in 32bit 1411.2kHz
2 ch Non-mixable linear PCM Interleaved 24 little endian Signed Integer aligned low in 32bit 768kHz
2 ch Non-mixable linear PCM Interleaved 24 little endian Signed Integer aligned low in 32bit 705.6kHz
2 ch Non-mixable linear PCM Interleaved 24 little endian Signed Integer aligned low in 32bit 384kHz
2 ch Non-mixable linear PCM Interleaved 24 little endian Signed Integer aligned low in 32bit 352.8kHz
2 ch Non-mixable linear PCM Interleaved 24 little endian Signed Integer aligned low in 32bit 192kHz
2 ch Non-mixable linear PCM Interleaved 24 little endian Signed Integer aligned low in 32bit 176.4kHz
2 ch Non-mixable linear PCM Interleaved 24 little endian Signed Integer aligned low in 32bit 96kHz
2 ch Non-mixable linear PCM Interleaved 24 little endian Signed Integer aligned low in 32bit 88.2kHz
2 ch Non-mixable linear PCM Interleaved 24 little endian Signed Integer aligned low in 32bit 48kHz
2 ch Non-mixable linear PCM Interleaved 24 little endian Signed Integer aligned low in 32bit 44.1kHz
2 ch Non-mixable linear PCM Interleaved 16 little endian Signed Integer 1536kHz
2 ch Non-mixable linear PCM Interleaved 16 little endian Signed Integer 1411.2kHz
2 ch Non-mixable linear PCM Interleaved 16 little endian Signed Integer 768kHz
2 ch Non-mixable linear PCM Interleaved 16 little endian Signed Integer 705.6kHz
2 ch Non-mixable linear PCM Interleaved 16 little endian Signed Integer 384kHz
2 ch Non-mixable linear PCM Interleaved 16 little endian Signed Integer 352.8kHz
2 ch Non-mixable linear PCM Interleaved 16 little endian Signed Integer 192kHz
2 ch Non-mixable linear PCM Interleaved 16 little endian Signed Integer 176.4kHz
2 ch Non-mixable linear PCM Interleaved 16 little endian Signed Integer 96kHz
2 ch Non-mixable linear PCM Interleaved 16 little endian Signed Integer 88.2kHz
2 ch Non-mixable linear PCM Interleaved 16 little endian Signed Integer 48kHz
2 ch Non-mixable linear PCM Interleaved 16 little endian Signed Integer 44.1kHz

Local devices found : 3
Device #0: ID 0x63 32S327
Manufacturer: TCL
Model UID: 506C0000-0000-0000-301E-010380472878
UID: 506C0000-0000-0000-301E-010380472878
Model name: TCL 32S327
Device #1: ID 0x59 Holo Audio UAC2.0 Gen2 Enhanced
Manufacturer: Holo Audio
Model UID: Holo Audio UAC2.0 Gen2 Enhanced:152A:87C0
UID: AppleUSBAudioEngine:Holo Audio:Holo Audio UAC2.0 Gen2 Enhanced:2110000:1
USB Vendor ID: 0x152a
USB Product ID: 0x87c0
Model name: Holo Audio UAC2.0 Gen2 Enhanced
Device #2: ID 0x4b MacBook Pro Speakers
Manufacturer: Apple Inc.
Model UID: Speaker
UID: BuiltInSpeakerDevice
Model name: Apple Inc. MacBook Pro Speakers

UPnP

UPnP network interface
Selected Network interface: USB 10/100/1000 LAN
Available Network interfaces:
USB 10/100/1000 LAN

UPnP devices found : 0

Chromecast

Chromecast devices found : 1
Device #0: Telemachus TV
ID: 78043dae6ac4935b56985287a572bae0
Model name: Smart TV Pro

Shaolin · September 19, 2025, 10:51am

Please note that my Mytek Brooklyn DAC+ is not recognized by macOS Tahoe (thus Audirvana also). My Mac Studio is connected via USB to Brooklyn DAC+ as well as MUTEC MC-3+USB (which sends reclocked digital data to Brooklyn DAC+ via AES/EBU).

Audirvana Origin 2.6.2 (20602)

Running on Mac Studio, Apple M1 Max

macOS Version 26.0 (Build 25A354) ARM64 with 64GB physical RAM

Connected account of : Kohji Matsubayashi

NETWORK
	Status: available
	Local network access: allowed

LOADING/DECODING:
	Max audio buffer size: 25964MB
	Polarity Inversion:
		Globally: OFF
		Per track: ON

SIGNAL PROCESSING:
	Effect Plugins: NOT ACTIVE

UPSAMPLING:
	r8brain not in use
	r8brain filter parameters
	Bandwidth = 99.5%
	Stop band attenuation 218dB
	Phase linear

AUDIO VOLUME:
	Replay Gain: None
	Max allowed volume: 100
	SW volume control: OFF

LIBRARY SETTINGS:
	Sync list: 2 folders
		AUTO: /Volumes/Music/iTunes Media/Music
		AUTO: /Volumes/Music/others
	Sync folders at startup: YES
	iTunes/Music library synchronization: not synchronized
	Sort and display order: en
	Library database path: /Users/shaolin/Library/Application Support/Audirvana/AudirvanaDatabase.sqlite

Folders synchronization in progress:
	/Volumes/Music/iTunes Media/Music/Punkt.Vrt.Plastik/Somit
	Deep Synch: no
	Scanning 5/13: /Volumes/Music/iTunes Media/Music/Punkt.Vrt.Plastik/Somit/04 Natt Raum.m4a

Remote Control server:
	Listening on 
		en0 IPv4: 192.168.0.13
		en0 IPv6: 2409:10:8340:3d10:c76:b9cd:cb57:e784
	 on port 57032

APPEARANCE SETTINGS:
	UI theme: dark
	Font size: large
	Language: System language
	Show album covers in tracks list: yes
	Source list sorted: 
		My Music
		Library
	Startup view: Library: Albums
	Show local extended in source list: yes
	Use media keys: no
	Use media keys for volume control: yes
	Use Apple Remote: no
	Number of paired remotes: 2
	Remote pairing code required: yes
	Screen saver disabled: no

=================== AUDIO DEVICE ========================


Active method: Local

Max. memory for audio buffers: 25964MB

Local Audio Engine: CoreAudio
	Exclusive access: ON
	Integer mode: ON
	Use max I/O buffer size: ON
	Actual I/O buffer frame size: 512

Preferred device: 
	MUTEC GmbH MC-3+ Smart Clock USB 2.0
	Model UID:MC-3+ Smart Clock USB 2.0:29A2:0086
	UID:AppleUSBAudioEngine:MUTEC GmbH:MC-3+ Smart Clock USB 2.0:8341100:1,2

Active Sample Rate: 44.1kHz
Hog Mode is off

Bridge settings:
	Sample rate limitation: none
	Sample rate switching latency: 1.5s
	Limit bitdepth to 24bit: ON
	Mute during sample rate change: OFF

Selected device:MC-3+ Smart Clock USB 2.0
	Manufacturer: MUTEC GmbH
	Model name: MUTEC GmbH MC-3+ Smart Clock USB 2.0
	Model UID: MC-3+ Smart Clock USB 2.0:29A2:0086
	UID: AppleUSBAudioEngine:MUTEC GmbH:MC-3+ Smart Clock USB 2.0:8341100:1,2
	USB Vendor ID: 0x29a2
	USB Product ID: 0x0086
	ID 0xa9 

7 available sample rates up to 352800Hz
	44100
	48000
	88200
	96000
	176400
	192000
	352800
Audio buffer frame size : 14 to 4096 frames
Current I/O buffer frame size : 512

Volume Control
	Physical: Yes
	Virtual: Yes
	Max volume alert: Disabled

MQA capability
	Auto-detect MQA devices: No
	Not automatically detected, user set to not MQA

DSD capability
	Unhandled (PCM conversion) with boost gain of 6dB

Device audio channels
	Preferred stereo channels L:1 R:2
	Channel bitmap: Ox3, layout:
		Channel 0 mapped to 0
		Channel 1 mapped to 1

Audio channels in use
	Number of channels: 2
	Use as stereo device only: No
	Simple stereo device: Yes

1 output streams:
	Number of active channels: 2, in 1 stream(s)
		Channel #0 :Stream 0 channel 0
		Channel #1 :Stream 0 channel 1

Stream ID 0xaa 2 channels starting at 1
21 virtual formats:
	2 ch Mixable linear PCM Interleaved 32 little endian Signed Float 352.8kHz
	2 ch Mixable linear PCM Interleaved 32 little endian Signed Float 192kHz
	2 ch Mixable linear PCM Interleaved 32 little endian Signed Float 176.4kHz
	2 ch Mixable linear PCM Interleaved 32 little endian Signed Float 96kHz
	2 ch Mixable linear PCM Interleaved 32 little endian Signed Float 88.2kHz
	2 ch Mixable linear PCM Interleaved 32 little endian Signed Float 48kHz
	2 ch Mixable linear PCM Interleaved 32 little endian Signed Float 44.1kHz
	2 ch Non-mixable linear PCM Interleaved 24 little endian Signed Integer aligned low in 32bit 352.8kHz
	2 ch Non-mixable linear PCM Interleaved 24 little endian Signed Integer aligned low in 32bit 192kHz
	2 ch Non-mixable linear PCM Interleaved 24 little endian Signed Integer aligned low in 32bit 176.4kHz
	2 ch Non-mixable linear PCM Interleaved 24 little endian Signed Integer aligned low in 32bit 96kHz
	2 ch Non-mixable linear PCM Interleaved 24 little endian Signed Integer aligned low in 32bit 88.2kHz
	2 ch Non-mixable linear PCM Interleaved 24 little endian Signed Integer aligned low in 32bit 48kHz
	2 ch Non-mixable linear PCM Interleaved 24 little endian Signed Integer aligned low in 32bit 44.1kHz
	2 ch Non-mixable linear PCM Interleaved 16 little endian Signed Integer 352.8kHz
	2 ch Non-mixable linear PCM Interleaved 16 little endian Signed Integer 192kHz
	2 ch Non-mixable linear PCM Interleaved 16 little endian Signed Integer 176.4kHz
	2 ch Non-mixable linear PCM Interleaved 16 little endian Signed Integer 96kHz
	2 ch Non-mixable linear PCM Interleaved 16 little endian Signed Integer 88.2kHz
	2 ch Non-mixable linear PCM Interleaved 16 little endian Signed Integer 48kHz
	2 ch Non-mixable linear PCM Interleaved 16 little endian Signed Integer 44.1kHz

28 physical formats
	2 ch Mixable linear PCM Interleaved 24 little endian Signed Integer aligned low in 32bit 352.8kHz
	2 ch Mixable linear PCM Interleaved 24 little endian Signed Integer aligned low in 32bit 192kHz
	2 ch Mixable linear PCM Interleaved 24 little endian Signed Integer aligned low in 32bit 176.4kHz
	2 ch Mixable linear PCM Interleaved 24 little endian Signed Integer aligned low in 32bit 96kHz
	2 ch Mixable linear PCM Interleaved 24 little endian Signed Integer aligned low in 32bit 88.2kHz
	2 ch Mixable linear PCM Interleaved 24 little endian Signed Integer aligned low in 32bit 48kHz
	2 ch Mixable linear PCM Interleaved 24 little endian Signed Integer aligned low in 32bit 44.1kHz
	2 ch Mixable linear PCM Interleaved 16 little endian Signed Integer 352.8kHz
	2 ch Mixable linear PCM Interleaved 16 little endian Signed Integer 192kHz
	2 ch Mixable linear PCM Interleaved 16 little endian Signed Integer 176.4kHz
	2 ch Mixable linear PCM Interleaved 16 little endian Signed Integer 96kHz
	2 ch Mixable linear PCM Interleaved 16 little endian Signed Integer 88.2kHz
	2 ch Mixable linear PCM Interleaved 16 little endian Signed Integer 48kHz
	2 ch Mixable linear PCM Interleaved 16 little endian Signed Integer 44.1kHz
	2 ch Non-mixable linear PCM Interleaved 24 little endian Signed Integer aligned low in 32bit 352.8kHz
	2 ch Non-mixable linear PCM Interleaved 24 little endian Signed Integer aligned low in 32bit 192kHz
	2 ch Non-mixable linear PCM Interleaved 24 little endian Signed Integer aligned low in 32bit 176.4kHz
	2 ch Non-mixable linear PCM Interleaved 24 little endian Signed Integer aligned low in 32bit 96kHz
	2 ch Non-mixable linear PCM Interleaved 24 little endian Signed Integer aligned low in 32bit 88.2kHz
	2 ch Non-mixable linear PCM Interleaved 24 little endian Signed Integer aligned low in 32bit 48kHz
	2 ch Non-mixable linear PCM Interleaved 24 little endian Signed Integer aligned low in 32bit 44.1kHz
	2 ch Non-mixable linear PCM Interleaved 16 little endian Signed Integer 352.8kHz
	2 ch Non-mixable linear PCM Interleaved 16 little endian Signed Integer 192kHz
	2 ch Non-mixable linear PCM Interleaved 16 little endian Signed Integer 176.4kHz
	2 ch Non-mixable linear PCM Interleaved 16 little endian Signed Integer 96kHz
	2 ch Non-mixable linear PCM Interleaved 16 little endian Signed Integer 88.2kHz
	2 ch Non-mixable linear PCM Interleaved 16 little endian Signed Integer 48kHz
	2 ch Non-mixable linear PCM Interleaved 16 little endian Signed Integer 44.1kHz

Local devices found : 14
	Device #0: ID 0xba LG Ultra HD
		Manufacturer: GSM
		Model UID: 1E6D095B-0000-0000-031D-0104B53C2278
		UID: 1E6D095B-0000-0000-031D-0104B53C2278
		Model name: GSM LG Ultra HD
	Device #1: ID 0x9f Yeti Stereo Microphone
		Manufacturer: Generic
		Model UID: Yeti Stereo Microphone:046D:0AB7
		UID: AppleUSBAudioEngine:Generic:Blue Microphones:LT_200918043411D70F047F_111000:2
		USB Vendor ID: 0x046d
		USB Product ID: 0x0ab7
		Model name: Generic Yeti Stereo Microphone
	Device #2: ID 0xa9 MC-3+ Smart Clock USB 2.0
		Manufacturer: MUTEC GmbH
		Model UID: MC-3+ Smart Clock USB 2.0:29A2:0086
		UID: AppleUSBAudioEngine:MUTEC GmbH:MC-3+ Smart Clock USB 2.0:8341100:1,2
		USB Vendor ID: 0x29a2
		USB Product ID: 0x0086
		Model name: MUTEC GmbH MC-3+ Smart Clock USB 2.0
	Device #3: ID 0x40 BlackHole 2ch
		Manufacturer: Existential Audio Inc.
		Model UID: BlackHole2ch_ModelUID
		UID: BlackHole2ch_UID
		Model name: Existential Audio Inc. BlackHole 2ch
	Device #4: ID 0x8a Mac Studio Speakers
		Manufacturer: Apple Inc.
		Model UID: Speaker
		UID: BuiltInSpeakerDevice
		Model name: Apple Inc. Mac Studio Speakers
	Device #5: ID 0x68 Microsoft Teams Audio
		Manufacturer: Microsoft Corp.
		Model UID: MSLoopbackDriverDevice_ModelUID
		UID: MSLoopbackDriverDevice_UID
		Model name: Microsoft Corp. Microsoft Teams Audio
	Device #6: ID 0x7e Pro Tools Audio Bridge 16
		Manufacturer: Avid
		Model UID: ProToolsAudioBridge_ModelUID
		UID: Pro Tools Audio Bridge 16_UID
		Model name: Avid Pro Tools Audio Bridge 16
	Device #7: ID 0x72 Pro Tools Audio Bridge 2-A
		Manufacturer: Avid
		Model UID: ProToolsAudioBridge_ModelUID
		UID: Pro Tools Audio Bridge 2-A_UID
		Model name: Avid Pro Tools Audio Bridge 2-A
	Device #8: ID 0x76 Pro Tools Audio Bridge 2-B
		Manufacturer: Avid
		Model UID: ProToolsAudioBridge_ModelUID
		UID: Pro Tools Audio Bridge 2-B_UID
		Model name: Avid Pro Tools Audio Bridge 2-B
	Device #9: ID 0x82 Pro Tools Audio Bridge 32
		Manufacturer: Avid
		Model UID: ProToolsAudioBridge_ModelUID
		UID: Pro Tools Audio Bridge 32_UID
		Model name: Avid Pro Tools Audio Bridge 32
	Device #10: ID 0x86 Pro Tools Audio Bridge 64
		Manufacturer: Avid
		Model UID: ProToolsAudioBridge_ModelUID
		UID: Pro Tools Audio Bridge 64_UID
		Model name: Avid Pro Tools Audio Bridge 64
	Device #11: ID 0x7a Pro Tools Audio Bridge 6
		Manufacturer: Avid
		Model UID: ProToolsAudioBridge_ModelUID
		UID: Pro Tools Audio Bridge 6_UID
		Model name: Avid Pro Tools Audio Bridge 6
	Device #12: ID 0x3d Pro Tools Aggregate I/O
		Manufacturer: Apple Inc.
		Model UID: com.Avid.ProToolsAnalogIOAggregateDevice
		UID: com.Avid.ProToolsAnalogIOAggregateDevice
		Model name: Apple Inc. Pro Tools Aggregate I/O
	Device #13: ID 0x90 ZoomAudioDevice
		Manufacturer: zoom.us
		Model UID: zoom.us.zoomaudiodevice
		UID: zoom.us.zoomaudiodevice.001
		Model name: zoom.us ZoomAudioDevice

UPnP

UPnP network interface
	Available Network interfaces: 
		Ethernet

UPnP devices found : 0



Chromecast


Chromecast devices found : 0

… and below is the debug output for Audirvana 3.5.50:

Audirvana Mac Version 3.5.50 (3580)
macOS 26.0.0 with 65536MB RAM

Registered to Kohji Matsubayashi


SIGNAL PROCESSING:

	Polarity Inversion:
		Globally: OFF
		Per track: ON
	Effects plugins NOT ACTIVE

UPSAMPLING:
	SoX not in use
	SoX filter parameters
		Bandwidth at 0dB = 99.5
		Filter max length = 30000
		Anti-aliasing = 100
		Phase = 66

AUDIO VOLUME:
	Max allowed volume: 100
	Replay Gain: None
	SW volume control: OFF

LIBRARY SETTINGS:
	Sync list: 1 folders
		AUTO: /Volumes/Music/iTunes Media/Music
	iTunes/Music library synchronization: last synchronized on Mon Jun  7 10:39:58 2021

	Library database path: /Users/shaolin/Library/Application Support/Audirvana/AudirvanaPlusDatabaseV2.sqlite

ACTIVE STREAMING SERVICES
	Qobuz:  Connected as Qobuz Studio

=================== AUDIO DEVICE ========================


CoreAudio audio path, buffer I/O frame size: 512

Max. memory for audio buffers: 20494MB

Local Audio Engine:
	Exclusive access: Enabled
	Integer mode: Enabled

Preferred device: 
	MC-3+ Smart Clock USB 2.0
	Model UID:MC-3+ Smart Clock USB 2.0:29A2:0086
	UID:AppleUSBAudioEngine:MUTEC GmbH:MC-3+ Smart Clock USB 2.0:8341100:1,2

Active Sample Rate: 44.1kHz
Hog Mode is off

Bridge settings:
	Sample rate limitation: none
	Sample rate switching latency: 1.5s
	Limit bitdepth to 24bit: OFF
	Mute during sample rate change: ON

Selected device:
	Local audio device
	ID 0xa9 MC-3+ Smart Clock USB 2.0	Manufacturer:MUTEC GmbH
	Model UID:MC-3+ Smart Clock USB 2.0:29A2:0086	UID:AppleUSBAudioEngine:MUTEC GmbH:MC-3+ Smart Clock USB 2.0:8341100:1,2

7 available sample rates up to 352800Hz
	44100
	48000
	88200
	96000
	176400
	192000
	352800
Audio buffer frame size : 14 to 4096 frames
	Current I/O buffer frame size : 512
Volume Control
	Physical: Yes
	Virtual: Yes
MQA capability
	Auto-detect MQA devices: Yes
	Not a MQA device, user set to not MQA
DSD capability: DSD via PCM 1.1
Device audio channels
	Preferred stereo channels L:1 R:2
	Channel bitmap: Ox3, layout:
		Channel 0 mapped to 0
		Channel 1 mapped to 1

Audio channels in use
	Number of channels: 2
	Use as stereo device only: No
	Simple stereo device: Yes

1 output streams:
	Number of active channels: 2, in 1 stream(s)
		Channel #0 :Stream 0 channel 0
		Channel #1 :Stream 0 channel 1

Stream ID 0xaa 2 channels starting at 1
21 virtual formats:
	2 ch Mixable linear PCM Interleaved 32 little endian Signed Float 352.8kHz
	2 ch Mixable linear PCM Interleaved 32 little endian Signed Float 192kHz
	2 ch Mixable linear PCM Interleaved 32 little endian Signed Float 176.4kHz
	2 ch Mixable linear PCM Interleaved 32 little endian Signed Float 96kHz
	2 ch Mixable linear PCM Interleaved 32 little endian Signed Float 88.2kHz
	2 ch Mixable linear PCM Interleaved 32 little endian Signed Float 48kHz
	2 ch Mixable linear PCM Interleaved 32 little endian Signed Float 44.1kHz
	2 ch Non-mixable linear PCM Interleaved 24 little endian Signed Integer aligned high in 32bit 352.8kHz
	2 ch Non-mixable linear PCM Interleaved 24 little endian Signed Integer aligned high in 32bit 192kHz
	2 ch Non-mixable linear PCM Interleaved 24 little endian Signed Integer aligned high in 32bit 176.4kHz
	2 ch Non-mixable linear PCM Interleaved 24 little endian Signed Integer aligned high in 32bit 96kHz
	2 ch Non-mixable linear PCM Interleaved 24 little endian Signed Integer aligned high in 32bit 88.2kHz
	2 ch Non-mixable linear PCM Interleaved 24 little endian Signed Integer aligned high in 32bit 48kHz
	2 ch Non-mixable linear PCM Interleaved 24 little endian Signed Integer aligned high in 32bit 44.1kHz
	2 ch Non-mixable linear PCM Interleaved 16 little endian Signed Integer 352.8kHz
	2 ch Non-mixable linear PCM Interleaved 16 little endian Signed Integer 192kHz
	2 ch Non-mixable linear PCM Interleaved 16 little endian Signed Integer 176.4kHz
	2 ch Non-mixable linear PCM Interleaved 16 little endian Signed Integer 96kHz
	2 ch Non-mixable linear PCM Interleaved 16 little endian Signed Integer 88.2kHz
	2 ch Non-mixable linear PCM Interleaved 16 little endian Signed Integer 48kHz
	2 ch Non-mixable linear PCM Interleaved 16 little endian Signed Integer 44.1kHz

28 physical formats
	2 ch Mixable linear PCM Interleaved 24 little endian Signed Integer aligned high in 32bit 352.8kHz
	2 ch Mixable linear PCM Interleaved 24 little endian Signed Integer aligned high in 32bit 192kHz
	2 ch Mixable linear PCM Interleaved 24 little endian Signed Integer aligned high in 32bit 176.4kHz
	2 ch Mixable linear PCM Interleaved 24 little endian Signed Integer aligned high in 32bit 96kHz
	2 ch Mixable linear PCM Interleaved 24 little endian Signed Integer aligned high in 32bit 88.2kHz
	2 ch Mixable linear PCM Interleaved 24 little endian Signed Integer aligned high in 32bit 48kHz
	2 ch Mixable linear PCM Interleaved 24 little endian Signed Integer aligned high in 32bit 44.1kHz
	2 ch Mixable linear PCM Interleaved 16 little endian Signed Integer 352.8kHz
	2 ch Mixable linear PCM Interleaved 16 little endian Signed Integer 192kHz
	2 ch Mixable linear PCM Interleaved 16 little endian Signed Integer 176.4kHz
	2 ch Mixable linear PCM Interleaved 16 little endian Signed Integer 96kHz
	2 ch Mixable linear PCM Interleaved 16 little endian Signed Integer 88.2kHz
	2 ch Mixable linear PCM Interleaved 16 little endian Signed Integer 48kHz
	2 ch Mixable linear PCM Interleaved 16 little endian Signed Integer 44.1kHz
	2 ch Non-mixable linear PCM Interleaved 24 little endian Signed Integer aligned high in 32bit 352.8kHz
	2 ch Non-mixable linear PCM Interleaved 24 little endian Signed Integer aligned high in 32bit 192kHz
	2 ch Non-mixable linear PCM Interleaved 24 little endian Signed Integer aligned high in 32bit 176.4kHz
	2 ch Non-mixable linear PCM Interleaved 24 little endian Signed Integer aligned high in 32bit 96kHz
	2 ch Non-mixable linear PCM Interleaved 24 little endian Signed Integer aligned high in 32bit 88.2kHz
	2 ch Non-mixable linear PCM Interleaved 24 little endian Signed Integer aligned high in 32bit 48kHz
	2 ch Non-mixable linear PCM Interleaved 24 little endian Signed Integer aligned high in 32bit 44.1kHz
	2 ch Non-mixable linear PCM Interleaved 16 little endian Signed Integer 352.8kHz
	2 ch Non-mixable linear PCM Interleaved 16 little endian Signed Integer 192kHz
	2 ch Non-mixable linear PCM Interleaved 16 little endian Signed Integer 176.4kHz
	2 ch Non-mixable linear PCM Interleaved 16 little endian Signed Integer 96kHz
	2 ch Non-mixable linear PCM Interleaved 16 little endian Signed Integer 88.2kHz
	2 ch Non-mixable linear PCM Interleaved 16 little endian Signed Integer 48kHz
	2 ch Non-mixable linear PCM Interleaved 16 little endian Signed Integer 44.1kHz

Local devices found : 14
Device #0: ID 0xba LG Ultra HD	Manufacturer: GSM	Model UID: 1E6D095B-0000-0000-031D-0104B53C2278	UID: 1E6D095B-0000-0000-031D-0104B53C2278
Device #1: ID 0x9f Yeti Stereo Microphone	Manufacturer: Generic	Model UID: Yeti Stereo Microphone:046D:0AB7	UID: AppleUSBAudioEngine:Generic:Blue Microphones:LT_200918043411D70F047F_111000:2
Device #2: ID 0xa9 MC-3+ Smart Clock USB 2.0	Manufacturer: MUTEC GmbH	Model UID: MC-3+ Smart Clock USB 2.0:29A2:0086	UID: AppleUSBAudioEngine:MUTEC GmbH:MC-3+ Smart Clock USB 2.0:8341100:1,2
Device #3: ID 0x40 BlackHole 2ch	Manufacturer: Existential Audio Inc.	Model UID: BlackHole2ch_ModelUID	UID: BlackHole2ch_UID
Device #4: ID 0x8a Mac Studio Speakers	Manufacturer: Apple Inc.	Model UID: Speaker	UID: BuiltInSpeakerDevice
Device #5: ID 0x68 Microsoft Teams Audio	Manufacturer: Microsoft Corp.	Model UID: MSLoopbackDriverDevice_ModelUID	UID: MSLoopbackDriverDevice_UID
Device #6: ID 0x7e Pro Tools Audio Bridge 16	Manufacturer: Avid	Model UID: ProToolsAudioBridge_ModelUID	UID: Pro Tools Audio Bridge 16_UID
Device #7: ID 0x72 Pro Tools Audio Bridge 2-A	Manufacturer: Avid	Model UID: ProToolsAudioBridge_ModelUID	UID: Pro Tools Audio Bridge 2-A_UID
Device #8: ID 0x76 Pro Tools Audio Bridge 2-B	Manufacturer: Avid	Model UID: ProToolsAudioBridge_ModelUID	UID: Pro Tools Audio Bridge 2-B_UID
Device #9: ID 0x82 Pro Tools Audio Bridge 32	Manufacturer: Avid	Model UID: ProToolsAudioBridge_ModelUID	UID: Pro Tools Audio Bridge 32_UID
Device #10: ID 0x86 Pro Tools Audio Bridge 64	Manufacturer: Avid	Model UID: ProToolsAudioBridge_ModelUID	UID: Pro Tools Audio Bridge 64_UID
Device #11: ID 0x7a Pro Tools Audio Bridge 6	Manufacturer: Avid	Model UID: ProToolsAudioBridge_ModelUID	UID: Pro Tools Audio Bridge 6_UID
Device #12: ID 0x3d Pro Tools Aggregate I/O	Manufacturer: Apple Inc.	Model UID: com.Avid.ProToolsAnalogIOAggregateDevice	UID: com.Avid.ProToolsAnalogIOAggregateDevice
Device #13: ID 0x90 ZoomAudioDevice	Manufacturer: zoom.us	Model UID: zoom.us.zoomaudiodevice	UID: zoom.us.zoomaudiodevice.001

UPnP devices found : 0

Antoine · September 19, 2025, 11:21am

Thanks, very interesting, we will investigate more about this and report back once we have something to share.

matt · September 19, 2025, 11:30am

+1
BTW, also HQPlayer had to fix the Tahoe coreaudio issue.

pb072 · September 20, 2025, 6:28am

I have this issue as well. Had me panicking for a moment.

I use a headless Mac mini and had to go and dig out keyboards/cables etc. because the update turned FileVault back on so no more automatic login.

Cooksons · September 20, 2025, 3:11pm

Just wanted to say that I’m having the same issue running Audirvana Origin 2.6.2 on a 2022 Mac Studio (M1 Max chip) after upgrading to Tahoe 26.0. With Integer Mode on, playback is distorted. With Integer Mode off, playback is normal. Thank you for working on this.

Shaolin · September 21, 2025, 4:14am

Here’s the detailed update of my experiments:

I found out that, at least in my environment (mac Studio M1 Max to MC-3+USB to Brooklyn DAC+), Audirvana Origin plays smooth even with “Exclusive Access” and “Integer Mode” both on, ONLY WHEN the music is 16/44.1 format.
No other formats (24/44.1, 24/48, or any other formats above it) can be played with Audirvana Origin with Integer Mode ON (more precisely, the UI shows it is played fine, but no sound from the DDC/DAC).

Even if I manually align the “Input Format” in Audio MIDI Setup for the DDC, the playback is completely muted. But only with the 16/44.1 files can be played fine.

As for the Origin’s “Music Integrated Mode”, it is completely unusable: when both “Exclusive Access” and “Integer Mode” on, both the Music app and Audirvana Origin app becomes “Not Responding” (on Activity Monitor); when “Integer Mode” off, it plays somehow, but never-ending quick starts/stops automatically happen, thus totally unlistenable.

Finally with a good ol’ Audirvana 3.5, it plays fine, local ALAC files and Qobuz streaming – even with Integer Mode on, and various formats from 16/44.1 to 24/192. Its “Music Integrated Mode” is the only exception, becoming “Not Responding” again.