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Is there an easy way to merge 2 3gp (amr) audio files into a single audio file?

I need them to be synchronous/over top of each other not one after the other. I am using android to do this. I have heard somewhere that for some audio formats you can simply add the bytes (being careful that you dont get a too high or too low result). Is this true with the 3gp/amr format on android?

Adam Wagner
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Kevin
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1 Answers1

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Android only allows playback/recording of 3GP/AMR files. To mix audio you will need the decoded PCM data. This means you have to decode both streams mix (this is indeed adding + normalizing) and then playback. The bad side - there no way to get access to the build in AMR decoder which allows you to decode without playback.

So ... no easy way.

Pentarius
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