MacOS + Sanskrit DAC = silence

I’ve tried everything (that I’m willing to or can think of) but cannot get any sound, so I have yet to hear the Audivana magic. Am able to play audio via iPad Pro but not via MacBook Pro (2015).

Are there any clues in my most recent debug?:

Audirvana Origin 1.0.6 (10006)

macOS Version 12.6 (Build 21G115) with 16GB physical RAM

SIGNAL PROCESSING:

Polarity Inversion:
	Globally: OFF
	Per track: ON
Effects plugins ACTIVE in offline mode with legacy macOS API
	No plugin 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: 2 folders
AUTO: /Users/jeff/HiFi
AUTO: /Users/jeff/iCloud Drive (Archive)/Documents/Documents - MacBook Pro/HiFi
iTunes/Music library synchronization: last synchronized on Tue Aug 23 20:37:03 2022

Library database path: /Users/jeff/Library/Application Support/Audirvana/AudirvanaDatabase.sqlite

Remote Control server:
Listening on 127.0.0.1 on port 56860

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

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

Max. memory for audio buffers: 13312MB
Exclusive access: Enabled
Integer mode: Enabled

Preferred device:
SMSL SMSL USB AUDIO
Model UID:SMSL USB AUDIO:152A:85DD
UID:AppleUSBAudioEngine:SMSL:SMSL USB AUDIO:14100000:1

Currently playing in Integer Mode:
Device: 2ch Non-mixable linear PCM Interleaved 32bits little endian Signed Integer, 8 bytes per frame 352.8kHz

Active Sample Rate: 352.8kHz
Hog Mode is on

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

Selected device:
Local audio device
ID 0x51 SMSL USB AUDIO
Manufacturer: SMSL
Model Name: SMSL USB AUDIO
Model UID: SMSL USB AUDIO:152A:85DD
UID: AppleUSBAudioEngine:SMSL:SMSL USB AUDIO:14100000:1

10 available sample rates up to 768000Hz
44100
48000
88200
96000
176400
192000
352800
384000
705600
768000
Audio buffer frame size : 212 to 4096 frames
Current I/O buffer frame size : 512
Volume Control
Physical: Yes
Virtual: Yes
MQA capability
Auto-detect MQA devices: No
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 0x52 2 channels starting at 1
20 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

20 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 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

Local devices found : 3
Device #0: ID 0x47 Built-in Output Manufacturer: Apple Inc. Model UID: AppleHDA:128 UID: AppleHDAEngineOutput:1B,0,1,1:0 Model Name: Apple Inc. Built-in Output
Device #1: ID 0x51 SMSL USB AUDIO Manufacturer: SMSL Model UID: SMSL USB AUDIO:152A:85DD UID: AppleUSBAudioEngine:SMSL:SMSL USB AUDIO:14100000:1 Model Name: SMSL USB AUDIO
Device #2: ID 0x36 Microsoft Teams Audio Manufacturer: Microsoft Corp. Model UID: MSLoopbackDriverDevice_ModelUID UID: MSLoopbackDriverDevice_UID Model Name: Microsoft Corp. Microsoft Teams Audio

UPnP devices found : 1
Device #0: ID 0x0 [TV] Familyroom TV UID: uuid:c3aa4d5b-76aa-4314-9e11-d0edcd351076

Reduce the pre-load cache to 4000MB.

Hello @jhalmos,

Have you tried to select DSD via PCM 1.0 instead of 1.1?

I’ll keep it at your suggested 4000MB but no sound so far.

Yes, tried both.

It was the Midi Settings. Needed to jack up the volume on all sliders to full. Argh.

2 Likes

Doh!

1 Like

Why Apple would default it to that setting, on 3 laptops in our home, is beyond me.