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Read specified audio file from datastore
Since R2024a
data = readfile(ads,I)
[data,info] = readfile(ads,I)
data = readfile(ads,I) returns audio extracted from the file in the datastore at index I.
data
ads
I
example
[data,info] = readfile(ads,I) also returns a structure containing information about the audio file.
info
collapse all
Create an audioDatastore object.
audioDatastore
folder = fullfile(matlabroot,"toolbox","audio","samples"); ads = audioDatastore(folder);
Read the audio data and the file information from the fifth file in the datastore. Display the file name.
[data,info] = readfile(ads,5); [path,name,ext] = fileparts(info.FileName); disp(name)
Click-16-44p1-mono-0.2secs
Use the sound function to listen to the audio.
sound
sound(data,info.SampleRate)
Audio datastore, specified as an audioDatastore object.
Audio file index, specified as a positive integer.
Audio data, returned as an M-by-N matrix, where M is the total number of samples per channel in the file and N is the number of channels.
File information, returned as a structure containing the following fields.
FileName — Name of the file.
FileName
Label — Label of the file. This field is present only if you set the Label property of the audioDatastore.
Label
SampleRate — Sample rate of the audio file.
SampleRate
Introduced in R2024a
audioDatastore | read | readall
read
readall
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