Hi all,
Question is the tittle… If someone had the same problem or could help, I would appreciate a lot, I’m lost !
Best
Laurent
Audirvana Mac Version 3.5.46 (3576)
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/music/
AUTO: /Volumes/music M-Z/
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: 5744MB
Local Audio Engine:
Exclusive access: Enabled
Integer mode: Enabled
Preferred device:
Sortie intégrée
Model UID:AppleHDA:88
UID:AppleHDAEngineOutput:1B,0,1,2:0
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: 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 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
Hopefully you had a nice holiday.
First questions.
Have you rebooted the MAC and the DAC? USB cable out and back in.
The DAC is not visible in the Debug info. I assume you don’t see the DAC in other software or the Audio MIDI setup of the MAC?
Hi Jacob,
Thanks nice holidays but with northern sun 
correct I don’t see it (midi setup is the sound setup in Mac ?)
It worked perfectly before…Don’t remember any updates… (Catalina)
Or at the audio devices in the configuration screen.
The first step is to know if OSX does detect the DAC. If not, then check whether the DAC and USB cable are OK.
thanks, Checked and nothing except internal output…
What options for what basic checks are there? Another laptop or PC to connect the DAC to? Another USB cable? Have you checked the USB cable to see if it is still properly plugged in on both sides?
Right again, thanks.
Tried on a MacBook Air BigSur, not recognized either…
So went to amazon and expect two new cables for To.: 1 Usb and 1 jack/Opt…
I "ll let you know
Best
Hi Laurent92,
It is somewhat difficult to provide support via a forum with limited information.
For now I can’t really explain why a setup before the holidays works well and now suddenly not anymore.
It could be something with the wiring, but I can’t guarantee it. Otherwise we will have to continue testing and searching after replacing the cable.
I don’t know anything about this brand and type of DAC, so some research or help from the DAC supplieer may be necessary.
FYI, I’m not part of the Audirvana team, just a fellow Audirvana user.
Have you checked if there is not a firmware update available for your D150?
Hi Damien,
Yes, I have the latest.
I progressed : I used a sonos connect to feed the dac in coax and it’s working.
So the problem remains with Mac mini/audirvana/usb.
Still waiting for a jack/optic cable.
Any clue ?
progress of the day:
. tried with another Mac mini (2012): dac not seen again
. plugged a jack/opt cable on the original Mac mini : sound is back again !
But I lost vol control from the app, settings and seems quality due to this connection
I would then guess that’s an apple update problem…
If someone could provide help I would be grateful and happy 
The optical connection is really something different than the USB. Only the audio can be sent to the DAC over the optical. No further functionality as is possible with USB.
What are the logical reasons for three different Macs/PC’s not seeing the DAC? At this point the USB cable and the USB connector of the DAC. A printer cable or other cable that you still have is sufficient to rule out the cable as a possible cause.
And the USB functionality of the DAC itself could still be possible. Checking settings or doing a (factory) reset might help.
It’s probably a DAC issue. Do you have the option of taking it to the shop where you bought it?
So, after all the tests that seemed logical (cables, 3pc, passing by the HDMI plug and a converter); I had to go to the evidence that the usb plug of the dac is failing…
It did not support my vacations and I must therefore resolve to bring it to service!
And in the meantime, I can only enjoy half of my beloved Audirvana in 24/96…
Thank you very much to all those that helped me in the process of questioning!!!
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