TOPIC:

Hi all, I just wanted to say that I am absolutely impressed. I ordered the USB Streamer last Monday and it's here today. I've been looking for something like this for a while and have to admit that I was very skeptical at first, but so far I've had it running for a few hours now and haven't had the first issue. It took less than 5 minutes to setup the driver. I've been able to record and playback flawlessly. I took a quick video:

A big thanks to whoever created the streamer and to the person that decided it needed to be able to output ADAT Optical!

David

Hi David,

Very thoughtful of you to take the time to write and even do a little video of your application with the USBStreamer. It's exciting seeing it in action rather than in the lab used by our engineers..

Thanks again for your kind comments and we look forward to hearing more of your comments/feedback if any,

DevTeam

What program do you recommend for Mac to create files of spdif?
thank you

How can l improve the jitter of the clock in Usbstreamer?

For example I use the clock from the ADAT convertor (by SPDIF IN) to sync the USBStreamer.

I just wanted to say that I've been using the USBStreamer for just over 8 months now and it has been such a fantastic product. I recently had the idea of eliminating the adat optical decoder from my custom circuit and started looking into using the i2s pin header on the streamer. I only have L/R audio running at the moment but it's working perfectly!

I couldn't find it documented anywhere but the data from the USBStreamer's I2S header is right justified, my dacs were wired for left justified. It was an easy fix though.

Anyway, you guys rock!

@ Aldeberan,

Very cool to see progress on your setup !
Looking good and keep us updated if you have any questions.

DevTeam

I just recently received another USBStreamer, the OEM version since I'm planning a project to utilize the I2S pin header on the Streamer. Since I have 2 Streamers here I wanted to play around with using more than 8 channels of audio. It was easy enough to create the 16 channel wave file and to setup the Streamers with 2 different serial numbers but I had difficulty with playing the file. I tried several different players that support ASIO and didn't have much luck. After much research, trial and error I have found the solution. Since I figure it might someday help someone here I thought I would post the details.

As it turns out, several players require an extensible wave file for more than 8 channels of audio. The player I typically use is Foobar, I could see all 16 channels of the Streamers using the ASIO4ALL driver but when I attempt to play the file it just gives an error that it's an "Invalid Audio Stream".

So here's what needs to be done:
Download a program called "CDP Multi-channel Toolkit" This is a command line utility for converting standard waves to extensible waves.
Place the audio file you want to use in the same folder with the toolkit and execute the following commands:

copysfx -t1 <file name to be converted.wav> <new file name.wav> //this will convert the standard wave file to extensible with blank mapping.
chxformat -s122879 <filename.wav> //this will add the propper channel mappings to the file

To verify the operation was successful, you can use the command:

sfprops <filename.wav> //this will show the file format (wave or extensible wave) and the channel mapping. The output should be similar to below

C:\Users\--\Desktop\WavEX Converter>sfprops 16channelwavex.wav
Properties of C:\Users\--\Desktop\WavEX Converter\16channelwavex.wav:
File type: soundfile
Format : MS WAVE-FORMAT-EXTENSIBLE
SPEAKER CONFIGURATION: Special speaker assignments
Speaker Mask = 122879 (0x1dfff)
Channel 1: Front Left
Channel 2: Front Right
Channel 3: Front Centre
Channel 4: Low Frequency
Channel 5: Back Left
Channel 6: Back Right
Channel 7: Front Centre-Left
Channel 8: Front Centre-Right
Channel 9: Back Centre
Channel 10: Side Left
Channel 11: Side Right
Channel 12: Top Centre
Channel 13: Front Top Left
Channel 14: Front Top Right
Channel 15: Back Top Left
Channel 16: Back Top Centre
Sample Rate : 48000
Channels : 16
Sample Frames : 15933750
sample type: : 16-bit
duration : 331.9531 secs
PEAK data:
creation time: Mon Apr 20 23:13:23 2015

CH 0: 0.999969 (-0.00dB) at frame 831234: 17.3174 secs
CH 1: 0.999969 (-0.00dB) at frame 823163: 17.1492 secs
CH 2: 0.999969 (-0.00dB) at frame 3100474: 64.5932 secs
CH 3: 0.999969 (-0.00dB) at frame 6262774: 130.4745 secs
CH 4: 0.999969 (-0.00dB) at frame 11968917: 249.3524 secs
CH 5: 0.000305 (-70.31dB) at frame 495777: 10.3287 secs
CH 6: 0.545654 (-5.26dB) at frame 6799269: 141.6514 secs
CH 7: 0.616638 (-4.20dB) at frame 6799269: 141.6514 secs
CH 8: 0.999969 (-0.00dB) at frame 531214: 11.0670 secs
CH 9: 0.999969 (-0.00dB) at frame 573790: 11.9540 secs
CH 10: 0.999969 (-0.00dB) at frame 3470032: 72.2923 secs
CH 11: 0.999969 (-0.00dB) at frame 6105824: 127.2047 secs
CH 12: 0.999969 (-0.00dB) at frame 2739948: 57.0823 secs
CH 13: 0.000336 (-69.48dB) at frame 6409390: 133.5290 secs
CH 14: 0.727142 (-2.77dB) at frame 1952322: 40.6734 secs
CH 15: 0.805145 (-1.88dB) at frame 12377835: 257.8716 secs

After that, the file should play fine!

Hi all, please tell me. Can I use USB Streamer with its clocking from the DAC? That is not in the master mode.

were you the person who was writing on another forum about making an ALESIS ADAT to be DC-Coupled for laser shows?

j

0=0

0e0 wrote:

were you the person who was writing on another forum about making an ALESIS ADAT to be DC-Coupled for laser show?

It wasn't me but that was a very common practice back in the day. The Alesis Blackface Adat's were the easiest to modify to remove the AC coupling to allow DC, a requirement for recorded lasershow material.

I was very happy to give up ADAT a few years ago, the USB Streamer took its place!

Speaking of the Streamer, the pic below shows two Streamers in use simultaneously. This gives me up to 20 channels of 24-bit 48KHz sample rate audio for recording and playback!

Goodness this setup looks sleek..

DeVteam