Audio Midi Setup Switching from selected Audio Ouput

Hi - Running Audirvana 3.5.50 on MacBook Pro, macOS 12.3.1. When I select the Audio Device output using the Audio Midi Setup application, and select the same output in Audirvana, no matter what I do the audio output on the Mac switches to something other than what I’ve selected. For instance, I connected an AudioQuest DragonFly Black v1.5 DAC to my Mac, selected that output in the Audio Midi Setup app and in Audirvana, and as soon as I press play there is no sound and the Audio Midi Setup app shows that the sound output has switched to the MacBook speakers, but no sound coming from those either. The Audi Midi Setup app will not respond to my attempts to change the audio output again until I quit the app and reopen it. The same thing happens if I plug in an audio out line into the headphone jack of the MacBook Pro. I can make the corresponding selections in the Audi Midi Setup app and Audirvana and as soon as I press play, the Audi Midi Setup app selects the MacBook Pro speakers for output. I’ve had the same issue on my Mac Mini, whatever audio output device I select for Audirvana, the Mac just switches to another output on its own, and not the one I’ve selected to play the Audirvana through. I am able to ultimately play audio into my stereo system via UPnP, but would prefer to find a solution to this Audi Midi Setup app auto switching issue so that I can play into my stereo system through my preferred path - source to preamp to receiver. Any suggestions for a resolution are appreciated.

Audirvana Mac Version 3.5.50 (3580)
macOS 12.3.1 with 16384MB RAM

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/Multimedia/Music/iTunes/iTunes Media/Music
iTunes/Music library synchronization: not synchronized
Library database path: /Users/homemac/Library/Application Support/Audirvana/AudirvanaPlusDatabaseV2.sqlite

ACTIVE STREAMING SERVICES

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

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

Max. memory for audio buffers: 13312MB

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

Preferred device:
AudioQuest DragonFly Black v1.5
Model UID:AudioQuest DragonFly Black v1.5:21B4:0083
UID:AppleUSBAudioEngine:AudioQuest:AudioQuest DragonFly Black v1.5:AQDFBL0100005573:2

Active Sample Rate: 96kHz
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 0x4c MacBook Pro Speakers Manufacturer:Apple Inc.
Model UID:Speaker UID:BuiltInSpeakerDevice

4 available sample rates up to 96000Hz
44100
48000
88200
96000
Audio buffer frame size : 29 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 0x4d 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

4 physical 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

Local devices found : 1
Device #0: ID 0x4c MacBook Pro Speakers Manufacturer: Apple Inc. Model UID: Speaker UID: BuiltInSpeakerDevice

UPnP devices found : 13
Device #0: ID 0x0 Den UID: uuid:ab03d3a8-559f-1c12-0080-00067846b05a Location: http://192.168.1.47:60006/upnp/desc/aios_device/aios_device.xml
Device #1: ID 0x0 Marantz SR7008 UID: uuid:5f9ec1b3-ff59-19bb-8530-0006781f2c12 Location: http://192.168.1.248:8080/description.xml
Device #2: ID 0x0 Upstairs Den UID: uuid:a3331f3e-4dfc-135e-0080-00067881ee22 Location: http://192.168.1.42:60006/upnp/desc/aios_device/aios_device.xml
Device #3: ID 0x0 Den UID: uuid:c4743477-8d65-1f8f-0080-00067846b05a Location: http://192.168.1.47:60006/upnp/desc/aios_device/aios_device.xml
Device #4: ID 0x0 Den UID: uuid:c70d7ba3-8df3-11d5-0080-00067846b05a Location: http://192.168.1.47:60006/upnp/desc/aios_device/aios_device.xml
Device #5: ID 0x0 Den UID: uuid:8736d806-3294-e173-7f92-8bd4801e05d3 Location: http://192.168.1.47:60006/upnp/desc/aios_device/aios_device.xml
Device #6: ID 0x0 Den UID: uuid:6b4c8294-a415-8c98-2a7b-a03cd403c53f Location: http://192.168.1.47:60006/upnp/desc/aios_device/aios_device.xml
Device #7: ID 0x0 UBP-X800 UID: uuid:00000000-0000-1010-8000-cc988b42883b Location: http://192.168.1.33:52323/dmr.xml
Device #8: ID 0x0 XBR-49X900E UID: uuid:23456789-1234-1010-8000-045D4B94F389 Location: http://192.168.1.25:52323/MediaRenderer.xml
Device #9: ID 0x0 Upstairs Den UID: uuid:aa05e8d0-68dc-1150-0080-00067881ee22 Location: http://192.168.1.42:60006/upnp/desc/aios_device/aios_device.xml
Device #10: ID 0x0 Upstairs Den UID: uuid:f403ee93-adcf-1a71-0080-00067881ee22 Location: http://192.168.1.42:60006/upnp/desc/aios_device/aios_device.xml
Device #11: ID 0x0 Upstairs Den UID: uuid:2b558c51-36c8-bf13-7203-aba45b0c8431 Location: http://192.168.1.42:60006/upnp/desc/aios_device/aios_device.xml
Device #12: ID 0x0 Upstairs Den UID: uuid:659e7e55-b819-b411-ba69-7143945955c0 Location: http://192.168.1.42:60006/upnp/desc/aios_device/aios_device.xml

This is what exclusive access does. Disable it if you don’t want this behaviour.

1 Like

Bitracer is correct. Audirvana uses exclusive access by default. It overrides the Mac’s own settings.

Thanks bitracer. That worked. Also identified that I now have either a problem with my preamp or the interconnect to the receiver. But that’s for another forum.