Audirvana not recognising external DAC

Hello,

I have an Audioquest Dragonfly Cobalt DAC connected to a T3 port on my Mac, it’s then connected by 3.5mm jack to my wired KEF LS50.

All was working fine until today. In the Audirvana audio settings box, without anything being played, the Dragonfly is checked in blue, but once I play a track, there’s no audio output and the check box is greyed out.

Thanks in advance for any ideas!

Could you post the debug info?

Ok. So I’ve reinstalled Audirvana and factory reset the KEF’s, still no audio.

Here’s the debug:
Audirvana Mac Version 1.6.1 (10601)
macOS 11.5.1 with 16384MB RAM

SIGNAL PROCESSING:

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

UPSAMPLING:
SoX with Power Of Two upsampling
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: by track
SW volume control: OFF

LIBRARY SETTINGS:
Sync list: 1 folders
AUTO: /Volumes/Audirvana Database 2TB/
iTunes/Music library synchronization: not synchronized
Library database path: /Volumes/Audirvana Database 2TB/AudirvanaDatabase.sqlite

Remote Control server:
Listening on 127.0.0.1 on port 49597

ACTIVE STREAMING SERVICES

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

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

Max. memory for audio buffers: 15360MB
Exclusive access: Enabled
Integer mode: Enabled

Preferred device:
AUDIOQUEST AUDIOQUEST DRAGONFLY COBALT V1.0
Model UID:AudioQuest DragonFly Cobalt v1.0:21B4:0085
UID:AppleUSBAudioEngine:AudioQuest:AudioQuest DragonFly Cobalt v1.0:AQDFCB0100103921:1

Currently playing in Integer Mode:
Device: 2ch Non-mixable linear PCM Interleaved 24bits little endian Signed Integer, 6 bytes per frame 96kHz

Active Sample Rate: 96kHz
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 0x32 AudioQuest DragonFly Cobalt v1.0
Manufacturer: AudioQuest
Model Name: AudioQuest DragonFly Cobalt v1.0
Model UID: AudioQuest DragonFly Cobalt v1.0:21B4:0085
UID: AppleUSBAudioEngine:AudioQuest:AudioQuest DragonFly Cobalt v1.0:AQDFCB0100103921:1

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: Yes
MQA Renderer device
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 0x33 2 channels starting at 1
8 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
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

8 physical formats
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 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

Local devices found : 4
Device #0: ID 0x71 DELL U2417H Manufacturer: Apple Inc. Model UID: AppleGFXHDA:0 UID: AppleGFXHDAEngineOutputDP:f803:0:{AC10-40E7-3538314C} Model Name: Apple Inc. DELL U2417H
Device #1: ID 0x32 AudioQuest DragonFly Cobalt v1.0 Manufacturer: AudioQuest Model UID: AudioQuest DragonFly Cobalt v1.0:21B4:0085 UID: AppleUSBAudioEngine:AudioQuest:AudioQuest DragonFly Cobalt v1.0:AQDFCB0100103921:1 Model Name: AudioQuest DragonFly Cobalt v1.0
Device #2: ID 0x36 CalDigit Thunderbolt 3 Audio Manufacturer: CalDigit, Inc. Model UID: CalDigit Thunderbolt 3 Audio:2188:6533 UID: AppleUSBAudioEngine:CalDigit, Inc.:CalDigit Thunderbolt 3 Audio:200000:1 Model Name: CalDigit, Inc. CalDigit Thunderbolt 3 Audio
Device #3: ID 0x58 MacBook Pro Speakers Manufacturer: Apple Inc. Model UID: Speaker UID: BuiltInSpeakerDevice Model Name: Apple Inc. MacBook Pro Speakers

UPnP devices found : 2
Device #0: ID 0x0 [TV] Samsung 6 Series (55) UID: uuid:323e3ee0-8139-4f36-8e7b-4fd49a30aa4a Location: http://192.168.1.92:9197/dmr
Device #1: ID 0x0 LS50 Wireless II-1509ae UID: uuid:45c7d3ca-cc73-49af-b4be-8dfcbece6779 Location: http://192.168.1.128:43811/45c7d3ca-cc73-49af-b4be-8dfcbece6779.xml

Can you split the setup for the test?

For example, listen to the Dragonfly with headphones.
And a smartphone with 3.5 Jack to the speakers.
Or connect the 3.5jack to the build in output in the PC and listen with an different software player. And if it works after that with Audirvana.

The blue and greyed out box seems normal behaviour. The output is locked during playback.