％声音录入
recorder = audiorecorder(44100,16,2);
recordblocking(recorder,3.5);
％获取声音数据
audioarray = getaudiodata(recorder);
stop(recorder);
％声音播放
play(recorder);
％波形显示
plot(audioarray);
声音数据存储
wavwrite(audioarray,'audio.wav');
grid on;