在Blackberry 10（本机）上拆分音频文件（wav）

Question

I use the following code for record wav file:

AudioRecorder recorder; 
recorder.setOutputUrl(<file path...>); 
recorder.record();

and for playing this tutorial

When wav file is recorded I want to play it and split file when I pause the track.

Could you please help me how can I split wav file?

Answer 1

Write a copy while playing the file. When pausing, close the file and start write a new file and continue the writing by writing to that file instead.

Your record approach seems very high level. If you play file by using something like

AudioPlayer player;
player.setInputUrl(...);
player.play();

You cannot split the file in that way. You need to do things in your playback loop to get it work.

EDIT:

The comment indicate that you want to do realtime splitting. If so, divide AudioRecorder into two classes:

WaveDeviceIn for communication with hardware
WaveFileOut for file output.

Then read from WaveDeviceIn as if it were an endless file. Inside your I/O loop you can create and destroy WaveFileOut objects as you wish while recording. Disk I/O may need another thread that is activated when WaveDeviceIn has a new data block to deliver.