Hi! First of all, sorry for my bad english. I'm new into Android application development, just experimenting with the emulator and the SDK. I have searched with some keywords on the developer group, but i didn't find what i need. I'm searching for classes which with i can do simple audio DSP on locally stored audio files. e.g. i like to do crossfade/overlap on MP3 files, and an overall automatic gain control/ equalization on the realtime mix . As i see i can use the AudioTrack class to send raw PCM data to the audio hardware, so i could implement the DSP in java, but i don't see any way to use the internal decoders to grab decoded PCM frames from encoded audio files (like MP3, OGG, AAC). I thought about using Java decoder implementations like JLayer to do the decoding but that's a very CPU intensive approach which is not good for e.g. a media player application which runs in the background. Is there any classes for using the platforms builtin decoders, or should i "port" some available decoders with NDK to my application?
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