DSD 512 distortion after Audirvana update

Dan3 · March 13, 2023, 1:10pm

Hi All,

I am using Audirvana STUDIO. I have done the very recent update and since this whenever I try to play DSD 512 I get distortion ramdomly, but when it starts it gets worse. I didn’t suffer this prior to the last update. I have a Denafrips Pontus 2 DAC which my PC is connected to the USB connector.
All other DSD 64, 128 and 256 play with no issues as do the other PCM formats. I have downloaded and loaded the latest denafrips driver to no avail. Any ideas would be appreciated. I will get the debug info and post it here ASAP.

Antoine · March 13, 2023, 1:57pm

Hi @Dan3,

I will then wait for you to post your debug info to properly answer you

Dan3 · March 14, 2023, 8:37pm

hi Antoine,

Debug info.

Audirvana Studio 2.2.5 (20205)

Windows 10 (19045) with 8GB physical RAM

Connected account of : Daniel Lewis

SIGNAL PROCESSING:

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

UPSAMPLING:
r8brain not in use
r8brain filter parameters
Bandwidth = 99.5%
Stop band attenuation 218dB
Phase linear

AUDIO VOLUME:
Max allowed volume: 100
Replay Gain: None
SW volume control: OFF

LIBRARY SETTINGS:
Sync list: 1 folders
AUTO: D:\Music
Library database path: C:\Users\danie\AppData\Local\Audirvana\Audirvana\AudirvanaDatabase.sqlite

Remote Control server:
Listening on 192.168.1.160 on port 50744

ACTIVE STREAMING SERVICES
Qobuz: Connected as Qobuz Studio

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

Active method: Local

Max. memory for audio buffers: 4004MB

Local Audio Engine: ASIO 2
Driver version 0
Use max I/O buffer size: ON

Preferred device:
Vinshine DENAFRIPS USB DAC
Model UID:Vinshine DENAFRIPS USB DAC
UID:Vinshine DENAFRIPS USB DAC

Active Sample Rate: 44.1kHz

Bridge settings:
Sample rate limitation: none
Sample rate switching latency: 1s
Limit bitdepth to 24bit: OFF
Mute during sample rate change: ON

Selected device:Vinshine DENAFRIPS USB DAC
Manufacturer:
Model name: Vinshine DENAFRIPS USB DAC
Model UID: Vinshine DENAFRIPS USB DAC
UID: Vinshine DENAFRIPS USB DAC

0 available sample rates up to 0Hz

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:0 R:1
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: No

0 output streams:
Number of active channels: 2

Local devices found : 2
Device #0: Vinshine DENAFRIPS USB DAC
Manufacturer:
Model UID: Vinshine DENAFRIPS USB DAC
UID: Vinshine DENAFRIPS USB DAC
Model name: Vinshine DENAFRIPS USB DAC
Device #1: XMOS USB Audio 2.0 ST 3066
Manufacturer:
Model UID: XMOS USB Audio 2.0 ST 3066
UID: XMOS USB Audio 2.0 ST 3066
Model name: XMOS USB Audio 2.0 ST 3066

UPnP

UPnP devices found : 1
Device #0: [TV]UE40D6100
UID: uuid:cfd83c49-69e7-43c4-763d-53eeab9e06ce
Location: http://192.168.1.13:52235/dmr/SamsungMRDesc.xml
Manufacturer: Samsung Electronics
Model name: UE40D6100

Chromecast

Chromecast devices found : 0

Agoldnear · March 15, 2023, 12:17am

DoP 1.1 is the current state of the “DSD over PCM” protocol…
Make sure your firmware is the latest…
It appears the DENAFRIPS device is playing games with the sample-rate to manufacture the correct support for DSD128, DSD256 and DSD512 via DoP 1.0… The DoP carrier sample-rate for DSD128 is 352.8kHz , DoP carrier sample-rate for DSD256 is 705.6kHz… The DoP carrier sample-rate for DSD512 is 1411.2kHz …

The DENAFRIPS information is not clearly defined as to how DSDxxx is handled via DoP…

Dan3 · March 16, 2023, 3:01pm

hi I should have done th debug with the dac switched on, my bad. see below

Audirvana Studio 2.2.5 (20205)

Windows 10 (19045) with 8GB physical RAM

Connected account of : Daniel Lewis

SIGNAL PROCESSING:

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

UPSAMPLING:
r8brain not in use
r8brain filter parameters
Bandwidth = 99.5%
Stop band attenuation 218dB
Phase linear

AUDIO VOLUME:
Max allowed volume: 100
Replay Gain: None
SW volume control: OFF

LIBRARY SETTINGS:
Sync list: 1 folders
AUTO: D:\Music
Library database path: C:\Users\danie\AppData\Local\Audirvana\Audirvana\AudirvanaDatabase.sqlite

Remote Control server:
Listening on 192.168.1.160 on port 50023

ACTIVE STREAMING SERVICES
Qobuz: Connected as Qobuz Studio

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

Active method: Local

Max. memory for audio buffers: 4004MB

Local Audio Engine: ASIO 2
Driver version 1337
Use max I/O buffer size: ON

Preferred device:
Vinshine DENAFRIPS USB DAC
Model UID:Vinshine DENAFRIPS USB DAC
UID:Vinshine DENAFRIPS USB DAC

Active Sample Rate: 44.1kHz

Bridge settings:
Sample rate limitation: none
Sample rate switching latency: 1s
Limit bitdepth to 24bit: OFF
Mute during sample rate change: ON

Selected device:Vinshine DENAFRIPS USB DAC
Manufacturer:
Model name: Vinshine DENAFRIPS USB DAC
Model UID: Vinshine DENAFRIPS USB DAC
UID: Vinshine DENAFRIPS USB DAC

17 available sample rates up to 45158400Hz
44100
48000
88200
96000
176400
192000
352800
384000
705600
768000
1411200
1536000
2822400
5644800
11289600
22579200
45158400

Volume Control
Physical: No
Virtual: No

MQA capability
Auto-detect MQA devices: No
Not a MQA device, user set to not MQA
DSD capability: Raw DSD (MSB)

Device audio channels
Preferred stereo channels L:0 R:1
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
2 ch Integer PCM 32bit little endian 44.1kHz
2 ch Integer PCM 32bit little endian 48kHz
2 ch Integer PCM 32bit little endian 88.2kHz
2 ch Integer PCM 32bit little endian 96kHz
2 ch Integer PCM 32bit little endian 176.4kHz
2 ch Integer PCM 32bit little endian 192kHz
2 ch Integer PCM 32bit little endian 352.8kHz
2 ch Integer PCM 32bit little endian 384kHz
2 ch Integer PCM 32bit little endian 705.6kHz
2 ch Integer PCM 32bit little endian 768kHz
2 ch Integer PCM 32bit little endian 1411.2kHz
2 ch Integer PCM 32bit little endian 1536kHz
2 ch DSD 8bit big endian in 8bit chunk 2822.4kHz
2 ch DSD 8bit big endian in 8bit chunk 5644.8kHz
2 ch DSD 8bit big endian in 8bit chunk 11289.6kHz
2 ch DSD 8bit big endian in 8bit chunk 22579.2kHz
2 ch DSD 8bit big endian in 8bit chunk 45158.4kHz

Local devices found : 2
Device #0: Vinshine DENAFRIPS USB DAC
Manufacturer:
Model UID: Vinshine DENAFRIPS USB DAC
UID: Vinshine DENAFRIPS USB DAC
Model name: Vinshine DENAFRIPS USB DAC
Device #1: XMOS USB Audio 2.0 ST 3066
Manufacturer:
Model UID: XMOS USB Audio 2.0 ST 3066
UID: XMOS USB Audio 2.0 ST 3066
Model name: XMOS USB Audio 2.0 ST 3066

UPnP

UPnP devices found : 1
Device #0: [TV]UE40D6100
UID: uuid:cfd83c49-69e7-43c4-763d-53eeab9e06ce
Location: http://192.168.1.13:52235/dmr/SamsungMRDesc.xml
Manufacturer: Samsung Electronics
Model name: UE40D6100

Chromecast

Chromecast devices found : 0

Agoldnear · March 16, 2023, 7:26pm

If all things are the same prior to the update, you may be running out of available RAM resources for playback when your system RAM is only 8GB and you have 50% of your available RAM allocated for audio buffer memory… Try allocating less audio buffer memory RAM until you get clean playback… Some PC/Windows users that playback DSDxxx here on the forum, may be of more help… My suggestion is to add more RAM if you need a large audio buffer memory allocation, which you will need for reliable DSD512 playback…