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Old 22nd September 2012, 04:35 PM   #1831
johnm is offline johnm  United Kingdom
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Quote:
Originally Posted by alexlee188 View Post
No. Not these Atmel ones. These are needed to flash firmware.

Did you click the view hidden drivers option etc. As described in the instructions?
I did indeed. Just tried it again with same results.
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Old 22nd September 2012, 04:50 PM   #1832
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Alex, have just seen this stage mentioned in the 'add_to_flip345_bin' folder:

"3 - Download a signed driver Atmel DFU driver from: AVR Freaks Atmel_DFU_64_driver"

This stage isn't mentioned anywhere in the main readme file, and I haven't done it. Could this be the reason? Also I am using Atmel flip 3.4.7...

DAC is working fine with UAC1 and 2, but with a blank Widget Control screen when in UAC2 mode.

- John

Last edited by johnm; 22nd September 2012 at 04:52 PM.
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Old 22nd September 2012, 05:32 PM   #1833
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P.S. I'm using the 'win7' version of 'add_to_flip345_bin' dated Dec2011, and not the slightly more modern 'windows' version posted a little later dated Jan2012.

Should I be using the generic 'windows' version, even though I am using Windows7?

Thanks.
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Old 23rd September 2012, 12:47 AM   #1834
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This is what mine shows. Note that under libusbK USB devices there is one audio interface and two control interfaces (one for uac1 and one for uac2).

If you still cannot get WidgetControl to work under both uac1 and uac2, may be you need to set up a Teamviewer session with Borge or myself to help you to set it up correctly.

Click the image to open in full size.
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Old 23rd September 2012, 03:45 AM   #1835
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Note also in my Device Manager display there are "greyed" entries. These entries show the "hidden" device drivers - ie the drivers are installed and ready but the actual devices are not plugged in. So you can see that as my audio-widget is now in uac2 mode, the libusbK audio control device for uac1 mode is greyed. The sound device DG8SAQ-I2C is also greyed (this is the device when the audio-widget in uac1 mode).

In John's device manager screenshot I don't see any greyed entries.

Alex
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Old 23rd September 2012, 10:55 AM   #1836
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Thanks for all that Alex - still stumped here however. I've just gone and removed all ATMEL and Audio Widget drivers, and removed Widget Control too. Going to start from the ground up again starting with ATMEL Flip drivers first.

Fingers crossed!

For the 'Add_to_flip345_bin' files, should I download the Win7 or the (generic?) windows version from the audio widget download page? As I said a few posts back, the 'win7' version of 'add_to_flip345_bin' is dated Dec2011, and the 'windows' version is dated Jan2012.

Thanks,

- John
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Old 23rd September 2012, 11:11 AM   #1837
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Use the latest.

Also don't download any libusb drivers. Just the atmel dfu drivers and AWsetup experimental.

Alex
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Old 23rd September 2012, 11:29 AM   #1838
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Cheers Alex. Didn't bother with any ATMEL stuff this time around (as firmware is already flashed to the latest version from a few days back).

The only thing I installed was AWsetupexperimental. So any drivers installed are via that - I didn't download any USB drivers (I didn't last time for that matter). All working now I am pleased to say! All details appearing in Widget Control in UAC1 or UAC2 modes. Great!

If you look at my screen-grab, you can see it displays libusb0 as well as usbk. As I said above, I didn't install any usb drivers - left it all to AWsetupexperimental, so I assume this is all now correct.

It still doesn't look like your screen - I haven't a clue why. But it's working

Thanks for your help!

- John
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Last edited by johnm; 23rd September 2012 at 11:32 AM.
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Old 28th September 2012, 05:16 PM   #1839
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dear borges or Alexlee, you are most qualified to answer my questions about this project of yours so that I should decide if this
asynchronous USB DAC fits my needs;
I am using a TDA1541A DAC in NOS mode (Non Over Samling) so my questions are simple:

will I be able to obtain bitperfect 16 bits at 44,1 khz I2S signal under win7 platform to feed my DAC?
I am asking this because I saw it can handle all the sample rates but they were specified at 24 bits, so my second question is - does this DSP make some kind of processing to the signal like oversampling or upsampling?
my 3-rd and last question is - will I be able to use a custom made 11.2896 clock and slave the "transport" (the PC in this case) with it without using the XO's that are on-board? and if the answer is yes, which pin of the DSP accepts external clock input?

thank you in advance!
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Old 2nd October 2012, 08:01 AM   #1840
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Lightbulb To use Audio Widget as Digital input interface.

As I recently found this tread after a bit of google searching...

I have a wish, I want to be able to use the Audio Widget as a part of a DIY portable multichannel (minimum 4 channels) recorder.
I hope to use a RPi or other low power Linux system as a basic for the recorder.

I first found this SourceForge.net: eightsoundsusb using USB audio class 2 for 8 microphone inputs.
The price is not right for me.

I have a need to record 4 microphone signals with exact signal levels, for that I can use my MOTU Traveler MK3 as mic mixer as it can be battery powered.

As this is a very flexible device I can export the digital out signals as either one digital ADAT signal ( 8 channels of 48KHz 24 bits) or 2 SPDIF interfaces each carrying stereo signals between 44.1 up to 192 kHz signals.

I have an idea to use either one of the following:
- OptoRec/Gen
- (if I2S interface) ADAT Receiver Module - www.pcm63.com - All For High Quality Audio DIY
or 2 instances of
- YM3623B Digital Audio Interface Receiver Module - www.pcm63.com - All For High Quality Audio DIY
- DIR9001 SPDIF decoder

The second solution might be a bit more complicated as it needs 2 I2S interfaces ( but maybe cheaper ).

Borge was kind enough to answer my request for more information on how to use the Audio Widget for input with this:
> The parent firmware project (SDR Widget) has support for ADCs, as does the hardware of the USB-I2S module. We just haven't taken the time to write generic ADC support into the audio-widget (on git repository) branch of the firmware yet.

> The project this far is 2-channel only. The I2S interface of the MCU can interface a single SPDIF TX (which is implemented and works on the
AB-1.12/13 prototype bpards). An SPDIF RX could work, but clock control could become interesting. At the moment the USB-I2S module interfaces a DAC board which is also clock matster. The module instructs the DAC to provide either 11.2896 or 12.288MHz clock. With a little tweaking, an SPDIF RX could do the job.

> For two SPDIF RXes, you'll have to give (the forum) some more details on how many audio channels are on each SPDIF and how many are to be recorded at one given time.

> Because we have full control over both MCU firmware and ASIO driver, it is possible to pack bits into a generic stereo audio stream and then unpack them on the PC side. It'd take some programming effort, though.

So my question is, is there any one who has the interest to add to the firmware to enable the Audio Widget to work as a input device?

Sadly I do not have the competence to assist in the programming, but I can at least assist in verifying the functionality of the code :-)

Hoping for development in this direction of the Audio Widget.

Bo-Erik
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