mixing text spoken streams and white noise

[chad hanna]

Hi Andrea,

In case it is useful I thought I should mention that you can also
generate white gaussian noise using audiotestsrc with the wave
property set to 9 rather than reading it from a wav file.

best,

Chad

2011/5/11 Andrea König <andrea.koenig at gmatic.de>:
> Hi all,
> I want to mix text spoken streams with white noise stream. For all streams I
> created wav files and try to mix the files. The pipeline is configured as
> followed:
>
> gst-launch.exe adder name=mix ! audioconvert ! lamemp3enc ! filesink
> location="C:/tmp/result.mp3"  filesrc location="C:/tmp/tmp_audio_2.wav" !
> wavparse ! audioconvert ! mix. filesrc location="C:/tmp/whiteNoise-2db-5s.wav"
> ! wavparse ! audioconvert ! mix.
>
> I get the error
> /GstPipeline:pipeline0/GstWavParse:wavparse0:
> streaming task paused, reason not-linked (-1)
> ERROR: pipeline doesn't want to preroll.
>
> If I mix to text spoken wav files - the white noice file replaced by a text
> spoken wav the pipeline works fine.
>
> Is there anybody could give a hint?
>
> Best regards
>
> Dr. Andrea König
> (Teamleiter Entwicklung)
>
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-- 
Chad Hanna
Perimeter Institute for Theoretical Physics
31 Caroline St. N.
Waterloo, Ontario, Canada N2L 2Y5
Ph: (519) 569-7600 x7511