Which Rega DAC do you have?
It’s not the dac-r, which has an upgraded usb input. My dac was designed to be used with the optical inputs.
Bateman (from Rega) doesn’t see USB “as a high-tier audio interface. . . . I came to this decision whilst researching professional studio-based outboard audio equipment, and nearly all the digital audio interfaces are AES/EBU (close relative of the S/PDIF format) and not USB.”
Later he came to understand that he was wrong…
He had a point, though USB can be made to work well. You can have at the Allo UPnP to SPDIF bridges, like DigiOne player.
I’m not quite sure what you mean. My setup is as follows:
Source: Mac mini (late 2010) with Audirvana (with local files and Tidal)
Dac: Rega dac, connected with an Audioquest Vodka toslink cable to the Mac mini
Amp: XTZ A100 D3, connected to the dac with Audioquest interlink cables
Speakers: Dynaudio Facette, connected with Audioquest CV-8 speaker cables
Where does the DigiOne player go in this setup?
Mac‘s Toslink works but it’s known to be jittery. With the DigiOne (or similar), you get a cleaner output plus you get streaming capabilities.
Whether you‘ll notice a difference is another question, but you asked what you can do to improve your setup. This is something you can try, short of upgrading your DAC.
i have same problem,what ever the source is any bit rate,the output is still show 32bit output,iam using rme adi2 dac with usb connect
Hello,
Has anyone figured this out yet? I want to use and buy this software but I am having the same issue here.
I am streaming 24/44.1 from Tidel and its outputting 32/88.2 to my RME ADI 2. I do not have up sampling on as well.
Thanks for your input.
John
Is the file Tidal sending an MQA?
if so it is normal because the hardware of Audirvana unpacks it and sends it as hi res
to have the 24 bit output instead of 32 you have to select it from the Audirvana settings on the dac pages
Hi John!
As you see above, a choice of bitrate can only be done, if your DAC accepts more than one. This also depends on the driver. I can only believe what Damien wrote. I have no DAC here that does. So please post the debug info. What is the source file? Aleman is right to assume, your listening an MQA file. You have TIDAL Master, maybe just for evaluation?
If you connect by UPnP, you have the choice, but maybe other problems too…
BR
BB
OK, so I think I figured it out.
RMEI-ADI2 DAC
24/44.1 shows 32/88.2. really 16/88.2
24/48 shows 32/96. really 16/96
16/44.1 shows 32/44.1. normal
Schiit Gungnir
24/48 shows as 24/96. really 16/96
24/44.1 shows as 24/88.2. really 16/88.2
16/44.1 shows as 16/44.1. finee
This is probably due to the MQA decoder, the track says its 24/48 if I had full decoding it would be outputting 24/48, cus I don’t the track is really 16/96 with the first unfold.
IDK, right that makes sense with the first unfold its only 96 or 88.2 based off what MQA’s website says with the first unfold.
MQA Core Decoder
This unfolds the MQA file once to deliver even higher than CD-quality. It is included in some products with digital outputs such as Pioneer and Onkyo players, as well as streaming services and desktop and mobile apps such as TIDAL and Xiami Music. Media players like Audirvana and Roon have also implemented the core decoder.
The first unfold recovers all the direct music-related information. Output is 88.2kHz or 96kHz.
RMEI-ADI2 DAC
Tidel Master - 24/44.1 shows 32/88.2. first unfold really 16/88.2
Tidel Master - 24/48 shows 32/96. first unfold really 16/96
Tidel HiFI - 16/44.1 shows 32/44.1. no unfold so stays true to the file format of 16/44.1
Hello everyone, can you try to use this new build of 3.2? https://audirvana.com/delivery/AudirvanaPlus_3.2.20.dmg
Do you still have this issue after the update?
Hello Damien,
I have the same problem. Whatever I play it comes out as 32. I am using chord qutest for my two channel and a Grace dac Ballanced for my head set. I have Audirvana 3.5.33 debug below.
Audirvana Mac Version 3.5.33 (3563)
macOS 10.14.6 with 16384MB RAM
Registered to LK
SIGNAL PROCESSING:
Polarity Inversion:
Globally: OFF
Per track: OFF
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
ACTIVE STREAMING SERVICES
Qobuz: Connected as Qobuz Studio
TIDAL: Connected as HIFI
=================== AUDIO DEVICE ========================
CoreAudio audio path, buffer I/O frame size: 512
Max. memory for audio buffers: 2980MB
Local Audio Engine:
Exclusive access: Enabled
Integer mode: Enabled
Preferred device:
SDAC-B USB 2.0
Model UID:SDAC-B USB 2.0:21B4:0245
UID:AppleUSBAudioEngine:Grace Design:SDAC-B USB 2.0:14300000:1
Active Sample Rate: 44.1kHz
Hog Mode is off
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 0x27 SDAC-B USB 2.0 Manufacturer:Grace Design
Model UID:SDAC-B USB 2.0:21B4:0245 UID:AppleUSBAudioEngine:Grace Design:SDAC-B USB 2.0:14300000:1
9 available sample rates up to 705600Hz
44100
48000
88200
96000
176400
192000
352800
384000
705600
Audio buffer frame size : 14 to 4096 frames
Current I/O buffer frame size : 512
Volume Control
Physical: Yes
Virtual: Yes
MQA capability
Auto-detect MQA devices: Yes
Not a MQA device, user set to not MQA
DSD capability: DSD via PCM 1.1
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 0x28 2 channels starting at 1
18 virtual formats:
2 ch Mixable linear PCM Interleaved 32 little endian Signed Float 705.6kHz
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 705.6kHz
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
18 physical formats
2 ch Mixable linear PCM Interleaved 32 little endian Signed Integer 705.6kHz
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 705.6kHz
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 : 4
Device #0: ID 0x3a Built-in Output Manufacturer: Apple Inc. Model UID: AppleHDA:88 UID: AppleHDAEngineOutput:1B,0,1,2:0
Device #1: ID 0x41 HDMI Manufacturer: Apple Inc. Model UID: AppleHDA:88 UID: AppleHDAEngineOutputDP:1B,3,1,2:0:{A320-002F-00000001}
Device #2: ID 0x45 Qutest Manufacturer: Chord Electronics Ltd Model UID: Qutest:245F:0815 UID: AppleUSBAudioEngine:Chord Electronics Ltd:Qutest:413-001:2
Device #3: ID 0x27 SDAC-B USB 2.0 Manufacturer: Grace Design Model UID: SDAC-B USB 2.0:21B4:0245 UID: AppleUSBAudioEngine:Grace Design:SDAC-B USB 2.0:14300000:1
UPnP devices found : 0
Your dac is 32 bits it will always show 32 bits out (on the right of window) THAT IS NORMAL
if your dac is only 24 bits, it will ALWAYS show 24 bits on the right. THAT IS NORMAL
THAT is BIT PERFECT.
Mine is 32 bits
16/44 - shows 32/44
24/96 - shows 32/96
24/192 - shows 32/192
If you are using Upsampling in preferences SoX or Izotope… that’s NOT BIT PERFECT output…
but the bits depth of your DAC will remain there.
so if i go maximum of my dac x2, it will show:
16/44 - 32/358
24/96 - 32/384
24/192 - 32/384
24/88 - 32/352
If you are using a bridge between your DAC and computer that bugs,
you can limit there the bit depth out for it to works, still bit perfect. If you have a bridge and upsampling, still not bit perfect 
2 Likes
Hi there, I’m new to the Audirvana world. Last week I had my first experiences and did not understand why my PC and APP where telling me the signal was 32/44.1 when I played a 16/44.1 file. This thread helped me understand.
Now the following problem came up… Currently it is showing 16/44.1 when I play a 16/44.1 file…and when I play 24/96, it shows 24/96. (yes. at the bottom of the app remote control ‘DAC: …’ )
What should I do? What to check?
I’m using a win 10 pc, pi4 with Moode audio with USB to a Topping D90 dac .
Any help really appreciated!
So… I just did nothing, really nothing, and now it shows 32/44.1
Shoot me…
So…it’s just randomly showing 16/44.1 and after a while it’s showing 32/44.1
I’m not touching any setting…
The question now is, what could cause this behavior?
(sorry for the triple post, I can’t seem to find the edit button…)
You looked up your debug info? Maybe you have all these options in the interface? Since there is still no check box to limit the bit rate like over UPnP, maybe there is nothing that really defines the bit rate, it becomes random…?
BR
BB