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 Post subject: ASIO
PostPosted: Mon Jan 26, 2009 11:40 am 

Joined: Mon Jan 05, 2009 5:41 pm
Posts: 23
Does ASIO improve the delay on Stereotool at all?

The setup that i want to run is as follows

Studio ----> Soundsolution ---ESI Juli@---> MPX STL
|---On Board Realtec----> Streaming and audio recording pc

If I run ASIO on the ESI JULI@ i can only output the audio to the same card and not both


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 Post subject: Re: ASIO
PostPosted: Mon Jan 26, 2009 5:48 pm 
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Joined: Mon Mar 17, 2008 1:40 am
Posts: 11211
Hi,

I suppose Soundsolution = Stereo Tool? :shock:

Anyway, using ASIO should reduce the latency by about 300 ms - which is quite a lot.

The ASIO on the same sound card is apparently a limitation of ASIO itself (it makes sense too - different sound cards usually have slightly different timings which will cause hiccups). This will probably also occur in the setup that you describe!

A better solution would be the following:
Use the Juli@ card for BOTH outputs.
--> 2 normal stereo channels for the MPX signal
--> 2 digital output channels for the non-MPX signal.

If you want to be able to hear the broadcast without delay, there's also another possiblilty:
- 2 normal channels for MPX signal
- 2 digital output channels for the "low latency low quality" signal (latency is approx. 30 ms on this channel!)
- Download and install "Virtual Audio Cable", and send the "Normal output" signal to a streaming application on the same PC. (I'm not certain that this won't cause timing issues).

That way you only need 1 pc, and you can hear yourself almost without delay.

Note that you only need 1 output channel for the MPX signal, so you could also choose to have a single low latency output channel for monitoring. That would be closer to the setup that you described above.

So in short:
Juli@ channel 1 (analog): MPX
Juli@ channel 2 (analog): MPX or Low Latency
Juli@ channel 3 (digital): Non-MPX signal LEFT
Juli@ channel 4 (digital): Non-MPX signal RIGHT

or:
Juli@ channel 1 (analog): MPX
Juli@ channel 2 (analog): MPX
Juli@ channel 3 (digital): Low Latency LEFT
Juli@ channel 4 (digital): Low Latency RIGHT
Virtual Audio Cable: Non-MPX signal

and a 2nd application that reads the Virtual Audio Cable input and encodes that for streaming on the same pc.


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 Post subject: Re: ASIO
PostPosted: Tue Jan 27, 2009 10:14 am 

Joined: Mon Jan 05, 2009 5:41 pm
Posts: 23
Lol I do apologize not sure why i always type soundsolution, I generally correct the error when I proof my text but missed that one :P :twisted:


I am going to schedule some dead air one morning (4am :o ) to calibrate the transmitter
I work better when its scheduled as swapping between old processor while working on new one is
cumbersome :)


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