Open-source USB interface: Audio Widget - Page 232 - diyAudio
Go Back   Home > Forums > Source & Line > Digital Source

Digital Source Digital Players and Recorders: CD , SACD , Tape, Memory Card, etc.

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 2nd May 2014, 01:59 PM   #2311
greggp is offline greggp  United States
diyAudio Member
 
Join Date: Nov 2004
Location: Madison, WI
Send a message via MSN to greggp
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?

Sent from my Nexus 7 using Tapatalk
  Reply With Quote
Old 2nd May 2014, 03:37 PM   #2312
diyAudio Member
 
linuxworks's Avatar
 
Join Date: Jul 2008
Location: santa clara, CA
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.
__________________
My Photostream:http://www.flickr.com/photos/linux-works/
  Reply With Quote
Old 2nd May 2014, 03:58 PM   #2313
greggp is offline greggp  United States
diyAudio Member
 
Join Date: Nov 2004
Location: Madison, WI
Send a message via MSN to greggp
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.
  Reply With Quote
Old 2nd May 2014, 05:59 PM   #2314
diyAudio Member
 
linuxworks's Avatar
 
Join Date: Jul 2008
Location: santa clara, CA
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.
__________________
My Photostream:http://www.flickr.com/photos/linux-works/
  Reply With Quote
Old 2nd May 2014, 06:17 PM   #2315
amb is offline amb  United States
diyAudio Member
 
amb's Avatar
 
Join Date: Apr 2004
Location: Sunnyvale, CA.
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.
  Reply With Quote
Old 2nd May 2014, 06:21 PM   #2316
diyAudio Member
 
linuxworks's Avatar
 
Join Date: Jul 2008
Location: santa clara, CA
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.
__________________
My Photostream:http://www.flickr.com/photos/linux-works/
  Reply With Quote
Old 2nd May 2014, 08:58 PM   #2317
borges is offline borges  Norway
diyAudio Member
 
Join Date: Dec 2003
Location: Oslo, Norway
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?


BÝrge
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Async 192Khz USB - the SDR-Widget collaborative project SunRa PC Based 5 26th April 2011 06:38 PM
usb audio interface david12 Equipment & Tools 14 10th October 2010 02:58 AM
Cheap Audio Interface (USB?) to PC agm2003 Instruments and Amps 11 16th September 2007 07:48 AM
Open call for suggestions on Open Source DIY Audio Design gfergy Everything Else 1 15th April 2007 07:33 AM
USB Interface Perfect?- Computer Audio fmak Digital Source 3 4th December 2004 10:24 PM


New To Site? Need Help?

All times are GMT. The time now is 11:19 AM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright ©1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2