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Old 2nd May 2014, 02:59 PM   #2311
greggp is offline greggp  United States
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Quote:
Originally Posted by amb View Post
In case there is any confusion, the software to download and install is NOT the "VB-CABLE Driver". What you need is the "ASIO Bridge (Virtual Hi-Fi Cable And ASIO Bridge)".

This allows you to use any player software with the audio widget in UAC2 mode, even when there is no ASIO plugin available for the player.

The ASIO Bridge creates a virtual sound card interface "VB-Audio Hi-Fi Cable" which you should set up your player software to use as the output device. Then, start up the ASIO Bridge panel, set its output device to "ASIO USB Audio Class 2 Driver" and enable the bridge. In effect, the ASIO bridge acts like a proxy between the player software and the ASIO driver. Make sure you set your audio widget to operate in UAC2 mode.

You don't need to use the ASIO Bridge if your player software has ASIO support (via a plugin, such as foobar2000 or JRiver). You also don't need this if you're running the audio widget in UAC1 mode.

Note that when you are using the ASIO Bridge, it will block other programs from accessing the device.
Can you use this as a multichannel driver for listening to surround tracks with Windows Media Center/Player, Arcsoft TMT, MPC Home Cinema, or VLC?

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Old 2nd May 2014, 04:37 PM   #2312
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if you downmix the 5.1 (etc) output to linear pcm spdif, yes.

I 'watch movies' all the time by having the multichannel stuff be mapped to stereo downmix.

if you are asking if the AW can deal with dts/dd5.1 directly, the answer is no.
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Old 2nd May 2014, 04:58 PM   #2313
greggp is offline greggp  United States
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Quote:
Originally Posted by linuxworks View Post
if you downmix the 5.1 (etc) output to linear pcm spdif, yes.

I 'watch movies' all the time by having the multichannel stuff be mapped to stereo downmix.

if you are asking if the AW can deal with dts/dd5.1 directly, the answer is no.
I'm not asking if AW can deal with dts/dd5.1 and am not very interested in always needing to downmix to stereo. When I rip my Blu-rays to MKV containers, I usually have the DTS-HD MA or Dolby TrueHD 5.1/7.1 tracks encoded to FLAC. I understand the AW is limited to 2 channels, but was just wondering if this ASIO bridge would work in a multichannel environment with different hardware. I also wonder if there would be any issues with audio/video synchronization because of additional audio latency when you use this ASIO bridge.
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Old 2nd May 2014, 06:59 PM   #2314
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let me see if I understand: you are asking if you can run several AW's on a single pc and group the pairs of channels into the 5.1/7.1 matrix, so that you can have full multichannel surround support using discrete rca line-outs from the series of AW's?

if that's the question, maybe someone at the driver level can answer it. I have doubts this would work but its more about the driver than the hardware, so I cant help here.
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Old 2nd May 2014, 07:17 PM   #2315
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The ASIO Bridge software appears to be multi-channel aware, its control panel has buttons that let you enable/disable up to 8 channels. I don't think you could use multiple audio widgets in that environment, however. You'll need sound hardware that also does multi-channel.
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Old 2nd May 2014, 07:21 PM   #2316
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I read something, a while ago, about using pairs of stereo cards (on linux) to get a discrete 5.1 output without using a surround-capable single sound card. of course, windows would be entirely different.

there was also talk of using hdmi multichannel output as a way to get concurrent discrete outputs, separate from 'surround'.

none of this is easy or standard, though. probably an uphill battle to get any of that multichannel stuff working on non-dd/dts style cards.
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Old 2nd May 2014, 09:58 PM   #2317
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Short answer: No more than stereo. The MCU is limited in terms of serial interfaces which can send I2S data to DAC chips.

Even if the drivers allowed you to, using multiple asynchronous USB DACs on the same computer, on the same composite audio stream, would probably be a bit of a hassle.

By the way, what does the movie player do when the DAC is asynchronous and requests audio sample rate adjustments from the Host?


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Old 19th October 2014, 07:57 PM   #2318
RA3PKJ is offline RA3PKJ  Russian Federation
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Hi!
Sorry if offtopic.
Metallic noice with SDR-Widget.
Windows 7-32 and Windows 8-64;
PowerSDR - different versions (it's SDR program);
sdr-widget-2012-10-22.elf;
AWSetup_20130211.exe;
UAC2-audio mode;
In 48/96/192 kHz.

Last edited by RA3PKJ; 19th October 2014 at 08:20 PM.
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Old 2nd November 2014, 10:20 AM   #2319
LSF is offline LSF
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Hi people.
I own the Henry Audio DAC but I'm not able to run it as UAC2 mode using foobar2000.
I've installed ASIO drivers and Audio Widget. OS is win7 and the DAC is now set in UAC2 (red light). I'm trying to play ISO SACD files but I don't get any sound in the speakers.
Using UAC1 mode the DAC works fine with f2k, but I'd like to check UAC2 and try to know the benefits you can get.
I don't know what I'm doing wrong. All your opinions are welcome.
Please, be patient because I'm a beginner on this.

Thanks.
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Old 2nd November 2014, 07:06 PM   #2320
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As I am not able to run the dac in uac2 mode I have spent the day testing several iso-sacd and flac files on uac1. As a result, I've reported clicks, pops and stutter using asio with win7.
Any idea what's happening? I've tried all settings but no changes at all.
Thanks.
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