A demo program to record audio by iOS service, and transcode the audio to another format.
The feature list
- Record Audio by AVAudioRecorder class, format includes AAC, PCM, ulaw, alaw, ima4
- Record Audio by Audio Queue Services, format includes AAC, PCM, ulaw, alaw
- Record Audio by Audio Unit Services, format includes PCM
- Record Audio by Audio Graph Services, format includes PCM
- Covert audio format by AudioConverter, PCM to AAC
- Covert audio format by FFmpeg, PCM to AAC
- Play Audio by AVAudioPlayer
- Play Audio by Audio Queue
- Play Audio by Audio Unit
- Mix Audio by Audio Unit