Question

我在录制语音5秒钟时遇到问题。我已经使用play（）函数成功回放了，但是一旦我播放了我保存在桌面上的wav文件，它就是沉默。这是代码

clc,clear;
% Record your voice for 5 seconds.
%recObj = audiorecorder;
recObj = audiorecorder(96000, 16, 1);
disp('Start speaking.')
recordblocking(recObj,5);

disp('End of Recording.');`enter code here`
% Play back the recording.
play(recObj);
myspeech = getaudiodata(recObj,'double');
wavwrite(double(myspeech),'C://Users//naveen//Desktop//unprocessed')

% Store data in double-precision array.
myRecording = getaudiodata(recObj);

% Plot the samples.
figure,plot(myRecording),title('Original Sound');

Answer 1

调用

wavwrite时不指定采样率，默认值为8000Hz

然而，在您致电audiorecorder

时，录音设定为96000Hz

audiorecorder(96000, 16, 1);

将这两个更改为匹配应修复此问题，因此请将以下任一调用更改为

recObj = audiorecorder(8000, 16, 1)
wavwrite(double(myspeech),96000,'C:/...snip...

作为补充说明，我认为myspeech已经加倍（如getaudiodata中所述）所以wavwrite(myspeech,96000,'C:/...snip...应该也能正常工作！

录制语音时，在Matlab中播放wav

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