New firmware release for USB Audio 2.0 Reference Design

[jason]

Just a quick update:

The latest firmware release (1v45) for the USB Audio 2.0 Reference Design (XS1-L1) is now available from XMOS.

The release includes the beta release 0.31 of the Windows Audio Class 2.0 driver from Thesycon, which provides ASIO support.

For further details please contact XMOS.

[lilltroll]

I have updated the flash and the Win driver to the new one.

If you connected the Audio-card to a USB 1.X HUB with the old driver set (Maybe without you knowing it due to connection to a desktop computer with many mixed USB 1.1/2.0 ports), Windows just reported some error like "failed to start USB device" , instead of "This device can perform better under a USB 2.0 HUB".

That compatibillity issue seems to be solved in this one.

Will check if I can make it enumeratate as an ASIO 2.2 device. It didn't work yesterday when I tried with a tool compiled under the ASIO 2.2 SDK.

Which ASIO version does it support ???

http://www.steinberg.net/en/company/ste ... ndard.html
http://www.steinberg.net/en/company/3rd ... loper.html

[lilltroll]

Do you need multi-platform, multi-OS (Windows, Macintosh (8,9,X), Unix (OSS), SGI, and BeOS), multi sound-driver, x86/x64, full-duplex, multi-channel low latency support, free open-source audio I/O library, in your PC program ?

Would you like to skip learning the Steinberg ASIO SDK, WMME and DirectSound ??

Check out http://www.playrec.co.uk/

Makefiles for MATLAB and Octave 3.0 are available freely, and you can check out the PortAudio for usages with other languages.

[otitov]

@lilltroll thanks for this tip! i hope i will find something interesting for software defined radio there.

[shawn]

Just checked playrec.co.uk seems like great tools, good forum.
What is Matlab basically, is it expensive? It is like a Mathematica?

[leon_heller]

http://www.mathworks.com/products/matlab/

It's quite expensive.

I use Scilab occasionally:

http://www.scilab.org/

It's free, and can import MATLAB programs. Octave is also free and is largely compatible with MATLAB.

[lilltroll]

MATLAB is focusing on numeric computations.
MATLAB was a short for MATrix LABoratory in the earlier days - written by a Professor in Lin Alg in the 1970 for education purpose.
Today MATLAB has alot of toolboxes, C-code export for embedded targets, JAVA support with others.

[shawn]

Linear Algebra is a nice way of doing things.
glossed over the scilab and octave site, I definitely
shall give them a try. Thanks for quick your responses.

[lurcher]

Back to the audio board :-), one thing I noticed with this new software (and the previous for that matter) is that it seems to not want to change sample rate, at least not using Audacity. It may be a Audio 2.0 issue though, I hacked the code in the previous release and got it working using Audio 1.0, and the speed change was coming through ok then. The driver seems to mention a control app, but I haven't found that yet.

[lilltroll]

The installer will install the .exe tools called

TUSBAudioCpl.exe
tusbaudiospy.exe

(Default is C:\Thesycon\TUSBAUDIO\v0.31.0)

but the installer doesn't create any desktop shortcuts to the .exe files.

You will find your answers in the TUSB control panel!