Brief pause/mute at start of listening session

Hi

When playing the first track in a listening session, within the first 1 minute or so, the music pauses/mutes for approximately 1 second, then resumes. This occurs anywhere from 10 to 70 seconds track elapsed time. I’ve tried changing between 4Gb, 6Gb and 12Gb for track pre-load and it doesn’t seem to have any impact on the problem. I haven’t noticed this problem on our two other computer setups (1. 2023 MacBook Air/Topping D10s/Anthem MRX710, and 2. 2020 iMac 27" / Focusrite Clarett 2 Pre).

Here’s the Debug Info:

Audirvana Origin 2.4.0 (20400)

macOS Version 13.6 (Build 22G120) with 16GB physical RAM

Connected account of : Tim Stapleton

SIGNAL PROCESSING:

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

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

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

LIBRARY SETTINGS:
Sync list: 1 folders
AUTO: /Volumes/T&C SSD4 2TB Audio Library/Audio Library T&C
iTunes/Music library synchronization: not synchronized
Library database path: /Users/tandc/Library/Application Support/Audirvana/AudirvanaDatabase.sqlite

Remote Control server:
Listening on 127.0.0.1 on port 49287

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

Active method: Local

Max. memory for audio buffers: 6000MB

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:
Topping D10s
Model UID:D10s:152A:8750
UID:AppleUSBAudioEngine:Topping:D10s:100000:1

Currently playing in Integer Mode:
Device: 2ch Non-mixable linear PCM Interleaved 24bits little endian Signed Integer, 8 bytes per frame 96kHz

Active Sample Rate: 96kHz
Hog Mode is on

Bridge settings:
Sample rate limitation: 192kHz
Sample rate switching latency: none
Limit bitdepth to 24bit: ON
Mute during sample rate change: OFF

Selected device:D10s
Manufacturer: Topping
Model name: Topping D10s
Model UID: D10s:152A:8750
UID: AppleUSBAudioEngine:Topping:D10s:100000:1
USB Vendor ID: 0x152a
USB Product ID: 0x8750
ID 0x31

8 available sample rates up to 384000Hz
44100
48000
88200
96000
176400
192000
352800
384000
Audio buffer frame size : 58 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 a MQA device, user set to not MQA
DSD capability: Unhandled

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 0x32 2 channels starting at 1
24 virtual formats:
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 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 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

32 physical formats
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 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 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 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

Local devices found : 3
Device #0: ID 0x37 MRX 740
Manufacturer: ATM
Model UID: 068D0100-0000-0000-001E-010380000078
UID: 068D0100-0000-0000-001E-010380000078
Model name: ATM MRX 740
Device #1: ID 0x31 D10s
Manufacturer: Topping
Model UID: D10s:152A:8750
UID: AppleUSBAudioEngine:Topping:D10s:100000:1
USB Vendor ID: 0x152a
USB Product ID: 0x8750
Model name: Topping D10s
Device #2: ID 0x59 Mac mini Speakers
Manufacturer: Apple Inc.
Model UID: Speaker
UID: BuiltInSpeakerDevice
Model name: Apple Inc. Mac mini Speakers

UPnP

UPnP devices found : 1
Device #0: ID 0x0 : MRX 740
UID: uuid:8ec6e5c5-f1b0-4800-9fe3-092c77eac6c3
Location: http://192.168.0.250:42125/8ec6e5c5-f1b0-4800-9fe3-092c77eac6c3.xml
Manufacturer: Anthem
Model name: MRX 740

Chromecast

Chromecast devices found : 1
Device #0: MRX 740
ID: cf3d7ef1a9f34e38c9e6953cb3a9be46
Model name: MRX 740

Make sure the D10 is at the top of the USB bus hierarchy…
If you are running the Mac Mini headless without an HDMI video dummy load, you may have to lower your pre-load RAM allocation to about 2GB or lower and start from there…

If you have multiple audio systems playing across your network, are you accessing the files from a NAS? … From your description of the interrupt, it seems network related…

:notes: :eye: :headphones: :eye: :notes:

Thanks for the advice. I will check these things out.