Cayin RU6 sample depth always 24bits

Studio Device connectivity
1

Hello,

I have a Cayin RU6 connected to audirvana with Asio drivers. Kernel mode detect only 44Khz frequency. The sample depth stay at 24bits even if i read a 16bits file. Is it a known issue ?

2

Hi @sebv,

Can you send us a copy of the "Debug Info“ when you have your device selected? You can get it in Audirvana Settings>My account.

Note: When you click on the Debug Info button, Audirvana automatically copies all its content. Please paste it in response to this message.

3

Hello Antoine,

Thank you for your reply, I tried with ASIO4All: only 32bits activated, with RU6 only 24bits activated

below the debug info log:

Audirvana Studio 2.8.2 (20802)

Windows 11 (22631) with 8GB physical RAM

*Connected account of : ******************

NETWORK

  • Status: available*
  • Available network interfaces:*
  •   ******************************************************* is private*
  • Windows Defender Firewall status for this instance of Audirvana Studio*
  •   Active profile types: all*

  •   Private profile: *

  •   	Firewall: enabled*

  •   	Inbound: allowed*

  •   	Outbound: allowed*

  •   	Notifications: enabled*

  •   Public profile: *

  •   	Firewall: enabled*

  •   	Inbound: allowed*

  •   	Outbound: allowed*

  •   	Notifications: enabled*

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: 2 folders*
  •   Manual: (OFFLINE) ***************************************\ALBUMS*

  •   Manual: (OFFLINE) ***************************************\RIP VINYLS*
  • Library database path: *******************\Packages\Audirvana.Audirvana-4118-9684-d80dbb7827cd_q3nymrkmej12j\LocalCache\Local\Audirvana\Audirvana\AudirvanaDatabase.sqlite

Local audio files fingerprinting

  • Tracks with no MBID: 211*

Remote Control server:

  • Listening on 192.168.1.15 on port 56128*

ACTIVE STREAMING SERVICES

  • Qobuz: Connected as Qobuz Studio*
  • HRA-Streaming: Connected as VirtualVault*

APPEARANCE SETTINGS:

  • UI theme: dark*
  • Font size: large*
  • Language: Langue du système*
  • Show album covers in tracks list: yes*
  • Source list sorted: *
  •   Ma Musique*

  •   Radios*

  •   Podcasts*

  •   Streaming*

  •   Local*
  • Startup view: Ma Musique : Albums*
  • Show local extended in source list: yes*
  • Use media keys: no*
  • Use media keys for volume control: no*
  • Use legacy Bonjour protocol: no*
  • Number of paired remotes: 0*
  • Remote pairing code required: yes*
  • Screen saver disabled: yes*

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

Active method: Local

Max. memory for audio buffers: 4096MB

Local Audio Engine: ASIO 2

  • Driver version 2*
  • Use max I/O buffer size: OFF*

*Preferred device: *

  • Cayin RU6 USB device*
  • Model UID:Cayin RU6 USB device*
  • UID:Cayin RU6 USB device*

Currently playing in Integer Mode:

  • Device: 2ch 24bits Integer, 6 bytes per frame 44.1kHz*

Active Sample Rate: 44.1kHz

Bridge settings:

  • Sample rate limitation: none*
  • Sample rate switching latency: none*
  • Limit bitdepth to 24bit: OFF*
  • Mute during sample rate change: OFF*

Selected device:Cayin RU6 USB device

  • Manufacturer: *
  • Model name: Cayin RU6 USB device*
  • Model UID: Cayin RU6 USB device*
  • UID: Cayin RU6 USB device*

11 available sample rates up to 11289600Hz

  • 44100*
  • 48000*
  • 88200*
  • 96000*
  • 176400*
  • 192000*
  • 352800*
  • 384000*
  • 2822400*
  • 5644800*
  • 11289600*

Volume Control

  • Physical: No*
  • Virtual: No*
  • Max volume alert: Disabled*

MQA capability

  • Auto-detect MQA devices: Yes*
  • Not automatically detected, 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 24bit little endian 44.1kHz*
  • 2 ch Integer PCM 24bit little endian 48kHz*
  • 2 ch Integer PCM 24bit little endian 88.2kHz*
  • 2 ch Integer PCM 24bit little endian 96kHz*
  • 2 ch Integer PCM 24bit little endian 176.4kHz*
  • 2 ch Integer PCM 24bit little endian 192kHz*
  • 2 ch Integer PCM 24bit little endian 352.8kHz*
  • 2 ch Integer PCM 24bit little endian 384kHz*
  • 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*

Local devices found : 3

  • Device #0: ASIO4ALL v2*
  •   Manufacturer: *

  •   Model UID: ASIO4ALL v2*

  •   UID: ASIO4ALL v2*

  •   Model name: ASIO4ALL v2*
  • Device #1: Cayin RU6 USB device*
  •   Manufacturer: *

  •   Model UID: Cayin RU6 USB device*

  •   UID: Cayin RU6 USB device*

  •   Model name: Cayin RU6 USB device*
  • Device #2: XMOS USB Audio 2.0 ST 30BB*
  •   Manufacturer: *

  •   Model UID: XMOS USB Audio 2.0 ST 30BB*

  •   UID: XMOS USB Audio 2.0 ST 30BB*

  •   Model name: XMOS USB Audio 2.0 ST 30BB*

UPnP

UPnP devices found : 0

Chromecast

Chromecast devices found : 0

4

Your device states it only support 24 bits, All that Audirvana does if it changes bit levels (16 to 24, or 24 to 32) is “zero padding.” This just means putting zeroes in the lowest bit registers. It doesn’t affect anything, any more than writing “1.00000000” instead of “1” affects the quantity. And neither does the reverse, such as when a 24-bit device is in the chain - that’s just changing “1.00000000” back to “1” again. No dither involved either way.

5

Thank you for your reply. Very interesting and detailed response, I had a doubt that it might be a bug, the Cayin RU6 being a 24-bit R2R DAC. In any case, Audirvana is an excellent application.

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