问题
I am developing an application which does audio recording. Now I need to add a feature of editing the recorded audio file... The user should be able to play the audio file & insert recording into that.. cut unwanted audio .. I need the two basic functionality INSERT audio & overwrite existing audio.
Is there any inbuilt function? Any useful link related to this will be helpful
来源：https://stackoverflow.com/questions/1584035/how-to-insert-overwrite-audio-files-audio-editing-iphone