MATLAB: May i ask what is mean by length of audio? is that same with number of sample in audio? can give me some example to explain..

length of audio

May i ask what is mean by length of audio? is that same with number of sample in audio? can give me some example to explain..

Best Answer

Length of the audio can be expressed in time. Example,this audio is 30 second long.

It can also be express as the number of sample. Example the audio has 14000 samples

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MATLAB: Sampling Audio at 11025 sample/sec in MATLAB

See: Record and Play Audio for a full description of the process. Note that SampleRate defines the sampling frequency.

MATLAB: Issue with running several sound statements…only last statement will play sound

Franklin - since your four sound function calls follow one after the other, all four sounds are playing at roughly the same time. You have a couple of options. The first is to put a pause in between each call to sound given the number of samples being played and the sample rate.

 % play the original sound 

 sound(sampledSig, reSampRate,resolution);
 pause(ceil(length(sampledSig)/reSampRate));
 % play the resampled sound signal 

 sound(quantizedSig,reSampRate,resolution);
 pause(ceil(length(quantizedSig)/reSampRate));
 % etc.

The other option is to use the audioplayer

 % play the original sound 
 player = audioplayer(sampledSig, reSampRate,resolution);
 playblocking(player);
 % play the resampled sound signal 
 player = audioplayer(quantizedSig,reSampRate,resolution);
 playblocking(player);
 % etc.

We use the playblocking function to play the sound and not return control until the playback has completed. A nicer alternative to a pause.

Best Answer

Related Solutions

MATLAB: Sampling Audio at 11025 sample/sec in MATLAB

MATLAB: Issue with running several sound statements…only last statement will play sound

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