I am a user of Audrivana since version 1.X and the DSD playback work on my ExD USB Bac without fault. Recently, i have updated my DAC to a new model of the same manufacturer. I found that despite the menu show the driver support DSD playback but the DSD playback had never work. The DSD Native Streaming Method selection in the preference section had disappeared in the preference menu under the new DAC USB driver By chance, I plug the same MAC computer to another USB DAC ( Xmos based 9038) and found that the selection re-appear again and had by default change to “Convert to PCM” . I had manually converted back to DOP 1.0 and replug the USB cable into the new ExD USB DAC, the DSD playback is now working perfectly. To me, it looks like that there is a bug in identifiying the correct USB driver and change to a default which disable the USB playback. Will it be possible to fix this issue as you do not expect to have another USB DAC to make it work. I had enclosed the debug information for your reference.
Audirvana Mac Version 3.5.50 (3580)
macOS 10.15.7 with 16384MB RAM
Registered to Anthony Lee
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/DS1520/Music
iTunes/Music library synchronization: not synchronized
Library database path: /Users/amhlee/Library/Application Support/Audirvana/AudirvanaPlusDatabaseV2.sqlite
ACTIVE STREAMING SERVICES
TIDAL: Connected as HIFI
=================== 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:
exD USB Audio 2.0
Model UID:exD USB Audio 2.0:ABCD:0008
UID:AppleUSBAudioEngine:exD :exD USB Audio 2.0:14100000:1
Currently playing in Integer Mode:
Device: 2ch Non-mixable linear PCM Interleaved 32bits little endian Signed Integer, 8 bytes per frame 176.4kHz
Active Sample Rate: 176.4kHz
Hog Mode is on
Bridge settings:
Sample rate limitation: 384kHz
Sample rate switching latency: none
Limit bitdepth to 24bit: OFF
Mute during sample rate change: ON
Selected device:
Local audio device
ID 0x4a exD USB Audio 2.0 Manufacturer:exD
Model UID:exD USB Audio 2.0:ABCD:0008 UID:AppleUSBAudioEngine:exD :exD USB Audio 2.0:14100000:1
8 available sample rates up to 384000Hz
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: No
MQA capability
Auto-detect MQA devices: No
Not a MQA device, user set to not MQA
DSD capability: DSD via PCM 1.0
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 0x4b 2 channels starting at 1
16 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 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
16 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 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 : 2
Device #0: ID 0x30 Built-in Output Manufacturer: Apple Inc. Model UID: AppleHDA:82 UID: AppleHDAEngineOutput:1B,0,1,1:0
Device #1: ID 0x4a exD USB Audio 2.0 Manufacturer: exD Model UID: exD USB Audio 2.0:ABCD:0008 UID: AppleUSBAudioEngine:exD :exD USB Audio 2.0:14100000:1
UPnP devices found : 1
Device #0: ID 0x0 KD-49X8500F UID: uuid:23456789-1234-1010-8000-CC988BC99749