How to write from audioplayer?

Hi, I'm using AppDesigner to process Audio. It reads the audio file and goes through a filtering process, however I'm having some issues trying to save the filtered audio.

I have a push button to save the filtered audio, but all I've managed to do is save it as an audioplayer type.

I then try to save it in matlab by doing this:

% Saved file name

output_name = 'filtered.wav';

fs = 16000;

audiowrite(output_name, FilteredAudio, fs);

However audiowrite won't work because FilteredAudio is an audioplayer insteead of an integer.

Is there a way to write from an audioplayer? Or extract an int?

Answer 1

[Pratyush]

Hi Joseph,

I understand that you want to save a filtered audio file to a WAv file.

To extract the audio data from the audioplayer object, you can use the "getaudiodata" function. This function returns the audio data as a double-precision array. You can refer to the following documentation for more details on "getaudiodata": https://in.mathworks.com/help/matlab/ref/audiorecorder.getaudiodata.html

Here's an example code snippet that saves the filtered audio from an audioplayer object to a WAV file:

% Saved file name
output_name = 'filtered.wav';
fs = 16000;

% Assuming 'FilteredAudio' is the audioplayer object
audio_data = getaudiodata(FilteredAudio); % Extract audio data

audiowrite(output_name, audio_data, fs); % Save audio data to file

[Joseph Patrick]

Doesn't getaudiodata only work for type audiorecorder? My value is of type audioplayer, not audiorecorder.

Also getaudiodata shows up as an unrecognized function for my matlab