Output to 24 bit instead of 32

[jtexel92677]

I have tried flipping the dac input radio button to 24 but I still play at 32 no matter what. My chain is NUC>SOTM USB Reclocker>SRC-DC (USB to dual BNC)> Chord.

The reason I want to output to 24 is according to SRC DX it wants 24 bit, I am guessing audrivana is seeing the SOTM reclocker and sending 32 but I dont want the 32 to 24 conversion happening between the USB reclocker and the SRC DX, I would rather the computer do it and keep the sample rate maintained all the way through.

I tried looking at not another dither but I could not get it working.

Any tips would be much appreciated. TY

Jason

[jtexel92677]

Audirvana Studio 2.6.3 (20603)

Windows 11 (22621) with 16GB physical RAM

Connected account of :

NETWORK
Status: available
Available network interfaces:
Ethernet 2 ({fc942996-50c1-4cd8-87f4-0ec77d705f24}) is PUBLIC
Windows Defender Firewall status for this instance of Audirvana Studio
Active profile types: all
Private profile:
Firewall: disabled
Inbound: blocked
Outbound: allowed
Notifications: enabled
Public profile:
Firewall: disabled
Inbound: blocked
Outbound: allowed
Notifications: enabled

SIGNAL PROCESSING:

Polarity Inversion:
	Globally: OFF
	Per track: ON
Effects plugins ACTIVE in offline mode
	VST3 plugin #0: C:\Program Files\Common Files\VST3\HLConvolver.vst3
		ClassID: ABCDEF019182FAEB4D616E754F6E6765
	VST3 plugin #1: None
	VST3 plugin #2: None
	VST3 plugin #3: None

UPSAMPLING:
r8brain custom frequencies
r8brain filter parameters
Bandwidth = 74.783%
Stop band attenuation 125.381dB
Phase minimum phase

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

LIBRARY SETTINGS:
Sync list: 1 folders
AUTO: C:\Users\Admin\Music
Library database path: C:\Users\Admin\AppData\Local\Packages\Audirvana.Audirvana-4118-9684-d80dbb7827cd_q3nymrkmej12j\LocalCache\Local\Audirvana\Audirvana\AudirvanaDatabase.sqlite

Local audio files fingerprinting
Tracks with no MBID: 1982

Remote Control server:
Listening on 172.16.0.50 on port 50695

ACTIVE STREAMING SERVICES
Qobuz: Connected as Qobuz Studio
TIDAL: Connected as HiFi Plus

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

Active method: Local

Max. memory for audio buffers: 10552MB

Local Audio Engine: KernelStreaming

Preferred device:
OCTA-CAPTURE
Model UID:OCTA-CAPTURE
UID:OCTA-CAPTURE

Active Sample Rate: 44.1kHz

Bridge settings:
Sample rate limitation: none
Sample rate switching latency: 5s
Limit bitdepth to 24bit: ON
Mute during sample rate change: OFF

Selected device:Speakers (SRC-DX)
Manufacturer: Microsoft
Model name: SRC-DX
Model UID: USB\VID_2FC6&PID_6013&REV_0201&MI_00
UID: \?\SWD#MMDEVAPI#{0.0.0.00000000}.{426e46c2-1d27-4e14-8b6a-33145a9efc66}#{e6327cad-dcec-4949-ae8a-991e976a79d2}
USB Vendor ID: 0x2fc6
USB Product ID: 0x6013
Kernel Streaming capable

10 available sample rates up to 768000Hz
44100
48000
88200
96000
176400
192000
352800
384000
705600
768000

Volume Control
Physical: Yes
Virtual: No
Max volume alert: Disabled

MQA capability
Auto-detect MQA devices: Yes
Not a MQA device, user set to not MQA
DSD capability: Unhandled

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

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 16bit little endian 44.1kHz
2 ch Integer PCM 16bit little endian 48kHz
2 ch Integer PCM 16bit little endian 88.2kHz
2 ch Integer PCM 16bit little endian 96kHz
2 ch Integer PCM 16bit little endian 176.4kHz
2 ch Integer PCM 16bit little endian 192kHz
2 ch Integer PCM 16bit little endian 352.8kHz
2 ch Integer PCM 16bit little endian 384kHz
2 ch Integer PCM 16bit little endian 705.6kHz
2 ch Integer PCM 16bit little endian 768kHz
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 Integer PCM 24bit little endian 705.6kHz
2 ch Integer PCM 24bit little endian 768kHz
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

Local devices found : 1
Device #0: Speakers (SRC-DX)
Manufacturer: Microsoft
Model UID: USB\VID_2FC6&PID_6013&REV_0201&MI_00
UID: \?\SWD#MMDEVAPI#{0.0.0.00000000}.{426e46c2-1d27-4e14-8b6a-33145a9efc66}#{e6327cad-dcec-4949-ae8a-991e976a79d2}
USB Vendor ID: 0x2fc6
USB Product ID: 0x6013
Model name: SRC-DX

UPnP

UPnP devices found : 1
Device #0: [LG] webOS TV OLED77C1PUB
UID: uuid:76379775-f0e9-feda-bbc8-75bd53b881ff
Location: http://192.168.0.16:1494/
Manufacturer: LG Electronics.
Model name: LG TV

Chromecast

Chromecast devices found : 0

[jtexel92677]

[RunHomeSlow]

i’m guessing you see 32/xx on the right of the main window…
Audirvana decided to show always your DAC bit depth on the right, not the output.
but if you see 24/xx on the left it is outputting 24/xx… if you limit to 24 bit it is 24 going out.
the software just put zero padding to go to 32, no change in sound or upsampling done…

you are not the first coming here asking about that Audirvana decision

DAC indicates 32Bit when 16Bit is played

I am loving that I finally have a player that sends Sample accurate files to my Schiit Bifrost 2 DAC. But when I’m playing 16 Bit files, the indicator at the bottom right indicates: 32/44.1. Is there a “Minimum” BIT rate setting that I’ve mistakenly selected?

Question about DAC Settings

I use a Schiit Modius DAC which has a maximum bit depth of 24. The following is from the specs: ================= SE or Balanced Outputs: Frequency Response: 20Hz-20KHz, +/-0.02dB THD+N: 0.0003%, with or without external power IMD: 0.0004%, CCIR, with or without external power S/N: > 118dB, referenced to full output, with or without external power Crosstalk: -125dB, 20-20kHz Maximum Output: 4.0V RMS balanced, 2.0V RMS single-ended Inputs: USB, Toslink SPDIF, Coaxial SPDIF, AES Sample Rate…

[jtexel92677]

Hmm thanks for that. It does seems strange, it sure looks like its outputting 32. I think most people care to know for sure what it is actually outputting rather than what the DAC is capable of. Certainly both pieces of info would be best to clear up any confusion.

[jtexel92677]

Would that padding affect pass through devices such as the SRC which labels itself as compatible with only 24?

[RunHomeSlow]

Not good enough to answer that… it put 8x0 at the end to show 32bits @Antoine ?

[RunHomeSlow]

@jtexel92677

I think most people care to know for sure what it is actually outputting rather than what the DAC is capable of

Me too, Audirvana decision

[ChiliHot]

If you click on the wheel to the right of your Output Device (DAC) there is an option that I have highlighted to select that only 24 Bits be output to the DAC, rather than 32.

Hope that helps.

[Jud]

@jtexel92677

Would that padding affect pass through devices such as the SRC which labels itself as compatible with only 24?

Nope. All that Audirvana does if it changes bit levels (16 to 24, or 24 to 32) is “zero padding.” As RunHomeSlow says, 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.