All of a sudden I lost a channel without known reasons

Bonjour,

Without specific manipulation I lost this afternoon one channel in 32bit…
When I reduce to 24, it works again ?
It has been working nice since 3 years in 32, and I 'm not specialist about settings.

My config is Mac mini (all tracks are in) to MCintosh DAC D150.

Someone would have a clue for me ?

Thanks !

Hello @laurent92,

Can you send me a copy of the “Debug Info”? You can get it in Audirvana Settings>General>Debug Info

Note: By clicking on the Debug Info button, Audirvana automatically copies all its content, all you have to do is paste it in response to this message

Bonjour Damien,

Merci de ce retour, voici donc les infos.
Et félicitations en direct pour cet excellent logiciel !

Audirvana Mac Version 3.5.42 (3572)
macOS 10.15.7 with 16384MB RAM

Licence enregistrée pour Laurent

SIGNAL PROCESSING:

Polarity Inversion:
	Globally: OFF
	Per track: ON
Effects plugins ACTIVE in offline mode
	No plugin active

UPSAMPLING:
SoX with device max frequency upsampling
SoX filter parameters
Bandwidth at 0dB = 87.5459
Filter max length = 15184
Anti-aliasing = 92.9279
Phase = 53

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

LIBRARY SETTINGS:
Sync list: 2 folders
AUTO: /Volumes/Musique D-Z/
AUTO: /Users/laurent/Desktop/Musique A-D
iTunes/Music library synchronization: not synchronized
Library database path: /Users/laurenttarrade/Documents/AudirvanaPlusDatabaseV2.sqlite

ACTIVE STREAMING SERVICES
Qobuz: Connected as

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

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

Max. memory for audio buffers: 7638MB

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

Preferred device:
McIntosh-HD HS USB Audio
Model UID:McIntosh-HD HS USB Audio:2AFD:0002
UID:AppleUSBAudioEngine:McIntosh:D150:14100000:2

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: OFF

Selected device:
Local audio device
ID 0x33 Sortie intégrée Manufacturer:Apple Inc.
Model UID:AppleHDA:88 UID:AppleHDAEngineOutput:1B,0,1,2:0

4 available sample rates up to 96000Hz
44100
48000
88200
96000
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: No
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 0x34 2 channels starting at 1
4 virtual formats:
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

16 physical formats
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 20 little endian Signed Integer aligned low in 32bit 96kHz
2 ch Mixable linear PCM Interleaved 20 little endian Signed Integer aligned low in 32bit 88.2kHz
2 ch Mixable linear PCM Interleaved 20 little endian Signed Integer aligned low in 32bit 48kHz
2 ch Mixable linear PCM Interleaved 20 little endian Signed Integer aligned low in 32bit 44.1kHz
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 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

Local devices found : 1
Device #0: ID 0x33 Sortie intégrée Manufacturer: Apple Inc. Model UID: AppleHDA:88 UID: AppleHDAEngineOutput:1B,0,1,2:0

UPnP devices found : 0

Je ne vois pas votre McIntosh sélectionné comme périphérique de sortie, pouvez-vous refaire votre debug info après avoir sélectionné votre McIntosh?

Le voici Damien:
Audirvana Mac Version 3.5.42 (3572)
macOS 10.15.7 with 16384MB RAM

Licence enregistrée pour Laurent

SIGNAL PROCESSING:

Polarity Inversion:
	Globally: OFF
	Per track: ON
Effects plugins ACTIVE in offline mode
	No plugin active

UPSAMPLING:
SoX with device max frequency upsampling
SoX filter parameters
Bandwidth at 0dB = 87.5459
Filter max length = 15184
Anti-aliasing = 92.9279
Phase = 53

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

LIBRARY SETTINGS:
Sync list: 2 folders
AUTO: /Volumes/Musique D-Z/
AUTO: /Users/laurent/Desktop/Musique A-D
iTunes/Music library synchronization: not synchronized
Library database path: /Users/laurent/Documents/AudirvanaPlusDatabaseV2.sqlite

ACTIVE STREAMING SERVICES
Qobuz: Connected as

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

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

Max. memory for audio buffers: 7638MB

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

Preferred device:
McIntosh-HD HS USB Audio
Model UID:McIntosh-HD HS USB Audio:2AFD:0002
UID:AppleUSBAudioEngine:McIntosh:D150:14100000:2

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: OFF

Selected device:
Local audio device
ID 0x33 Sortie intégrée Manufacturer:Apple Inc.
Model UID:AppleHDA:88 UID:AppleHDAEngineOutput:1B,0,1,2:0

4 available sample rates up to 96000Hz
44100
48000
88200
96000
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: No
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 0x34 2 channels starting at 1
4 virtual formats:
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

16 physical formats
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 20 little endian Signed Integer aligned low in 32bit 96kHz
2 ch Mixable linear PCM Interleaved 20 little endian Signed Integer aligned low in 32bit 88.2kHz
2 ch Mixable linear PCM Interleaved 20 little endian Signed Integer aligned low in 32bit 48kHz
2 ch Mixable linear PCM Interleaved 20 little endian Signed Integer aligned low in 32bit 44.1kHz
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 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

Local devices found : 1
Device #0: ID 0x33 Sortie intégrée Manufacturer: Apple Inc. Model UID: AppleHDA:88 UID: AppleHDAEngineOutput:1B,0,1,2:0

UPnP devices found : 0

Ceci est la sortie intégré à votre Mac et non votre McIntosh. Est-ce que vous voyez dans vos sorties audio ceci:

C’est la bonne sortie à sélectionner.

je ne suis pas certain de saisir désolé…Où puis je sélectionner ?
Pour l’instant j’ai ceci:

Vous avez maintenant la bonne sortie, pouvez-vous cliquer sur le bouton debug info et coller son contenu en réponse de ce message?

Capture d’écran 2020-11-13 à 16.28.02

Audirvana Mac Version 3.5.42 (3572)
macOS 10.15.7 with 16384MB RAM

Licence enregistrée pour Laurent

SIGNAL PROCESSING:

Polarity Inversion:
	Globally: OFF
	Per track: ON
Effects plugins ACTIVE in offline mode
	No plugin active

UPSAMPLING:
SoX with device max frequency upsampling
SoX filter parameters
Bandwidth at 0dB = 87.5459
Filter max length = 15184
Anti-aliasing = 92.9279
Phase = 53

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

LIBRARY SETTINGS:
Sync list: 2 folders
AUTO: /Volumes/Musique D-Z/
AUTO: /Users/laurent/Desktop/Musique A-D
iTunes/Music library synchronization: not synchronized
Library database path: /Users/laurent/Documents/AudirvanaPlusDatabaseV2.sqlite

ACTIVE STREAMING SERVICES
Qobuz: Connected as

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

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

Max. memory for audio buffers: 7638MB

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

Preferred device:
McIntosh-HD HS USB Audio
Model UID:McIntosh-HD HS USB Audio:2AFD:0002
UID:AppleUSBAudioEngine:McIntosh:D150:14200000:2

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: OFF

Selected device:
Local audio device
ID 0x49 McIntosh-HD HS USB Audio Manufacturer:McIntosh
Model UID:McIntosh-HD HS USB Audio:2AFD:0002 UID:AppleUSBAudioEngine:McIntosh:D150:14200000:2

9 available sample rates up to 384000Hz
32000
44100
48000
88200
96000
176400
192000
352800
384000
Audio buffer frame size : 14 to 4096 frames
Current I/O buffer frame size : 512
Volume Control
Physical: No
Virtual: Yes
MQA capability
Auto-detect MQA devices: No
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 0x4a 2 channels starting at 1
36 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 Mixable linear PCM Interleaved 32 little endian Signed Float 32kHz
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 32 little endian Signed Integer 32kHz
2 ch Non-mixable linear PCM Interleaved 24 little endian Signed Integer 384kHz
2 ch Non-mixable linear PCM Interleaved 24 little endian Signed Integer 352.8kHz
2 ch Non-mixable linear PCM Interleaved 24 little endian Signed Integer 192kHz
2 ch Non-mixable linear PCM Interleaved 24 little endian Signed Integer 176.4kHz
2 ch Non-mixable linear PCM Interleaved 24 little endian Signed Integer 96kHz
2 ch Non-mixable linear PCM Interleaved 24 little endian Signed Integer 88.2kHz
2 ch Non-mixable linear PCM Interleaved 24 little endian Signed Integer 48kHz
2 ch Non-mixable linear PCM Interleaved 24 little endian Signed Integer 44.1kHz
2 ch Non-mixable linear PCM Interleaved 24 little endian Signed Integer 32kHz
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
2 ch Non-mixable linear PCM Interleaved 16 little endian Signed Integer 32kHz

54 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 32 little endian Signed Integer 32kHz
2 ch Mixable linear PCM Interleaved 24 little endian Signed Integer 384kHz
2 ch Mixable linear PCM Interleaved 24 little endian Signed Integer 352.8kHz
2 ch Mixable linear PCM Interleaved 24 little endian Signed Integer 192kHz
2 ch Mixable linear PCM Interleaved 24 little endian Signed Integer 176.4kHz
2 ch Mixable linear PCM Interleaved 24 little endian Signed Integer 96kHz
2 ch Mixable linear PCM Interleaved 24 little endian Signed Integer 88.2kHz
2 ch Mixable linear PCM Interleaved 24 little endian Signed Integer 48kHz
2 ch Mixable linear PCM Interleaved 24 little endian Signed Integer 44.1kHz
2 ch Mixable linear PCM Interleaved 24 little endian Signed Integer 32kHz
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 Mixable linear PCM Interleaved 16 little endian Signed Integer 32kHz
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 32 little endian Signed Integer 32kHz
2 ch Non-mixable linear PCM Interleaved 24 little endian Signed Integer 384kHz
2 ch Non-mixable linear PCM Interleaved 24 little endian Signed Integer 352.8kHz
2 ch Non-mixable linear PCM Interleaved 24 little endian Signed Integer 192kHz
2 ch Non-mixable linear PCM Interleaved 24 little endian Signed Integer 176.4kHz
2 ch Non-mixable linear PCM Interleaved 24 little endian Signed Integer 96kHz
2 ch Non-mixable linear PCM Interleaved 24 little endian Signed Integer 88.2kHz
2 ch Non-mixable linear PCM Interleaved 24 little endian Signed Integer 48kHz
2 ch Non-mixable linear PCM Interleaved 24 little endian Signed Integer 44.1kHz
2 ch Non-mixable linear PCM Interleaved 24 little endian Signed Integer 32kHz
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
2 ch Non-mixable linear PCM Interleaved 16 little endian Signed Integer 32kHz

Local devices found : 2
Device #0: ID 0x33 Sortie intégrée Manufacturer: Apple Inc. Model UID: AppleHDA:88 UID: AppleHDAEngineOutput:1B,0,1,2:0
Device #1: ID 0x49 McIntosh-HD HS USB Audio Manufacturer: McIntosh Model UID: McIntosh-HD HS USB Audio:2AFD:0002 UID: AppleUSBAudioEngine:McIntosh:D150:14200000:2

UPnP devices found : 1
Device #0: ID 0x0 SONY KD-55A8 UID: uuid:23456789-1234-1010-8000-94DB56C2899B Location: http://10.0.0.38:52323/MediaRenderer.xml

Merci pour le debug info, vous n’avez donc plus de son avec l’un de vos canaux lorsque vous écoutez votre musique?

Merci de votre temps Damien.

Oui effectivement lorsque je ne limite pas la résolution à 24bits. Cela peut fonctionner qques secondes puis un canal s’arrête…Et des que je repasse en 24, tout revient dans l’ordre.

Pouvez-vous essayer de mettre le paramètre où vous avez un problème dans Audirvana dans Audio Midi Setup puis essayer de lancer un titre avec iTunes? Avez-vous le même problème?