Audio stream measurements

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Audio stream measurements

Jeffrey Barish
I would like to measure the power and other characteristics of an audio
stream. Ideally, the measurement would take place while listening to the
stream.  I suppose that the measured value would be written into a file,
though I wonder about the possibility of writing it into the metadata of the
audio source.  Is it feasible to implement this functionality as a GStreamer
element?  Is there already an element that performs a function even remotely
similar to this that I can use as a model?
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Jeffrey Barish


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Re: Audio stream measurements

Tristan Matthews-2
2010/6/2 Jeffrey Barish <[hidden email]>
I would like to measure the power and other characteristics of an audio
stream. Ideally, the measurement would take place while listening to the
stream.  I suppose that the measured value would be written into a file,
though I wonder about the possibility of writing it into the metadata of the
audio source.  Is it feasible to implement this functionality as a GStreamer
element?  Is there already an element that performs a function even remotely
similar to this that I can use as a model?

You'd want the level element:
http://www.gstreamer.net/data/doc/gstreamer/head/gst-plugins-good-plugins/html/gst-plugins-good-plugins-level.html
There's an example program in gst-plugins-good/tests/examples/level
 
Best,
Tristan

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Jeffrey Barish


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email: [hidden email]
web: http://tristanswork.blogspot.com

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