Le Sun, 05 Nov 2006 11:40:35 +0900,
Edson Pereira <[EMAIL PROTECTED]> a écrit :

> 
> Greetings!
> 
> I have a amateur radio application (app1), a jack client, that performs 
> some DSP on an audio stream and I would like to interface the output 
> stream of this application to another application (app2), a legacy OSS 
> app. The setup I have is:
> 
> [ Soundcard ADC ] => ALSA Capture => JACK => DSP APP1 => JACK => ALSA 
> Playback => [ Soundcard DAC ]
> 
> The above works very well, but I would like to feed the processed stream 
> into the legacy application (app2) as shown below:
> 
> [ Soundcard ADC] => ALSA Capture => JACK => DSP APP1 => JACK => ??? => 
> Virtual OSS PCM Device => APP2
> 
> APP2 peforms some further signal processing and demodulates the signals 
> displaying them on the screen (FFT plus characters)
> APP2 can also be used to generate some baseband stream and I would like 
> to feed it back into the system as:
> 
> APP2 => Virtual OSS PCM Device => ??? => JACK => DSP APP1 => ALSA 
> Playback => [ Soundcard DAC ]
> 
> Does anyone knows how I could possibly accomplish this? Is there a way I 
> can create a virtual OSS-compatible PCM device (/dev/dspX) that could 
> show up as an ALSA capture/playback device for jack?
> 
> Any help or pointers would be very much appreciated.
> 
> Regards,
> 
> -- Edson
> 

You can try libjackasyn http://gige.xdv.org/soft/libjackasyn
It is a wrapper to jack for OSS apps.

Cheers,

-- 
Dominique Michel

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