Input folders or files contain non-standard file extensions.

[Voss]

Please upload create_new_audio.m using the paperclip button.

[Mohammad Sultan]

Hehere

Answer 1

[Walter Roberson]

TrainingSet/English contains no files with standard audio file extensions.

You need to change

            ads = audioDatastore(output_dir, ...
                                   'IncludeSubfolders',true, ...
                                   'LabelSource','foldernames');

to explicitly have 'FileExtensions' name/value pair so that it can locate the files with the non-standard extensions.

Possibly TrainingSet/English is empty.

Answer 2

[Voss]

The error is happening on this line:

ads = audioDatastore(output_dir, ...

'IncludeSubfolders',true, ...

'LabelSource','foldernames');

and it happens because output_dir (which, based on your selections, is fullfile(pwd(),'TrainingSet','English')) and/or one or more of its sub-folders contains files whose extensions are not in the set listed under FileExtensions on this page.

You can avoid this error by specifying extensions of the files you want to include in your audioDatastore, e.g.:

ads = audioDatastore(output_dir, ...
    'IncludeSubfolders',true, ...
    'LabelSource','foldernames', ...
    'FileExtensions',{'.wav','.mp4','.wot'});

[Mohammad Sultan]

If i am using a macbook, which extension should i use to create or save an audio?

[Voss]

Try something and see.

[Walter Roberson]

@Mohammad Sultan

Audio file extensions, specified as a character vector, cell array of character vectors, string scalar, or string array. If you do not specify FileExtensions, then audioDatastore automatically includes all supported file types:

• .wav
• .avi
• .aif
• .aifc
• .aiff
• .mp3
• .au
• .snd
• .mp4
• .m4a
• .flac
• .ogg
• .mov
• .opus