ios - How to dynamically re-sample M4A file in ObjectC -


i want take dynamically song itunes , re-sample lower quality rate.

i'm able import song itunes, don't know how re-sample 320kbit (supposed itunes work @ quality) 96kbit , keep m4a format (very important, don't want use mp3).

i wrote audio library can convert audio easily. set sample rate, channel number, , other properties want.

here's url: https://github.com/lixing123/extaudioconverter


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