DSD audio over USB

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gaboca0527
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Joined: Sat Mar 31, 2012 3:56 pm

Re: DSD audio over USB

Postby gaboca0527 » Mon Oct 15, 2012 12:09 pm

Hi Altivirus,

I have some idea:

- How did you connect the development kit to the computer? With the XTAG2 board? Did the computer install the XTAG2 board driver well?
- Do not connect to the computer at the same time the Development kit USB and the XTAG2 USB. Maybe it can cause some problem.
- Do not run the XMOS Development SW together with the Command Prompt, maybe the Development SW grab the device.

I hope i could help you!

Gabor
altvirus
Junior Member
Posts: 6
Joined: Fri Sep 28, 2012 4:55 am

Postby altvirus » Tue Oct 23, 2012 1:43 pm

HI! Gabor,

Thank you very much for your help

With your help, the development kit is now installed and it is working

very well. Would it be possible to run both DSD and PCM or only

DSD file if DSD firmware is installed?

Thanks again,
Altvirus
gaboca0527
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Posts: 8
Joined: Sat Mar 31, 2012 3:56 pm

Postby gaboca0527 » Tue Oct 23, 2012 9:39 pm

Hi!

I am happy, that I could help to you!
As in Stef's descripton, this firmware plays 176,4kHz 24 bit PCM with a special 8bit header bytes. If the device recognise the 8bit headers the firmware switch to DSD mode and plays the encapsulated (converted DSD) file.
If not recognise the 8bit headers, it runs in normal PCM mode.

Gabor
altvirus
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Joined: Fri Sep 28, 2012 4:55 am

Postby altvirus » Wed Oct 24, 2012 2:49 am

Hi, Gabor

I am running Xmos DSD on Windows operating system, Can you tell me how to set the control panel of Wiindows to operated the DSD?
Thanks again,

Altvirus
gaboca0527
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Posts: 8
Joined: Sat Mar 31, 2012 3:56 pm

Postby gaboca0527 » Wed Oct 24, 2012 10:56 am

Hi,

I do not understand your question. What do you want to set up in the control panel? If you want to set this sound card to default windows sound device, than In the sound settings, you have to choose the Xmos audio device. But this step is not neccessary.
It is enough to set up in the player software the output device to Xmos audio device.
I recommend to use the Foobar player, and choose the WASAPI Xmos output device in the settings menu. This WASAPI is only in Win7 or in WinVista. WinXP not support this methode.
If you have WinXP, you have to use ASIO supported soundcard. Only the ASIO driver is suitable to play out this special encapsulated file without any processing. DirectSound and Waveout is not suitable, because both makes some processing on PCM stream. :(

Do you have a seperate DSD DA converter or how to want to listen it? Because on the development kit the DA converter is not suitable for DSD to Analog converting. It is just a simple PCM converter.

Gabor
sbc0107
Newbie
Posts: 1
Joined: Sat Oct 27, 2012 7:23 am

Postby sbc0107 » Sat Oct 27, 2012 9:37 am

I have to update you tell renal
xmos board lights up during playback will turn three. But I do not sound
Questions that
Signals go, there is no sound

Please let me know if you'd like a way to go back to previous firmware
ghmfranken
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Posts: 14
Joined: Thu Sep 27, 2012 6:41 pm

Postby ghmfranken » Sat Feb 23, 2013 11:09 am

If found this schematic very helpful for properly connecting the XMOS board to the ES9018: http://hifiduino.files.wordpress.com/2013/01/diyinhksmart.png. Note that also the DAC inputs must be remapped.
audioengr
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Joined: Fri Mar 22, 2013 5:57 pm

Postby audioengr » Fri Mar 22, 2013 6:25 pm

Stef - I'm not a S/W engineer, so I need help with my XMOS firmware. Are you considering licensing your code commercially?

I am planning to design another DAC and would like DoP capability in the XMOS USB interface.

Also, are you willing to do some minor tweaks to the XMOS code for XS1-L1 on a contract basis?

Please email me
Steve N.
Empirical Audio
nugent@empiricalaudio.com
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ccandeias
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Joined: Tue Mar 26, 2013 5:56 am

Postby ccandeias » Tue Mar 26, 2013 6:03 am

Where is it? Didn't see it. H or L = DSD?
Please let us know your license requirements for commercial use.
Can you provide the same solution on the XMOS multi-channel platform?
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Curmudgeon
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Joined: Sat Jun 29, 2013 1:44 pm

Postby Curmudgeon » Mon Jul 08, 2013 9:40 pm

would like commercial license, please dm me Stef.

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