Issues with audiorecorder function in Matlab online R2020a?

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Eddy Armas
Eddy Armas 2020-6-30
评论： Walter Roberson 2024-1-7
Hi. I'm using Matlab online R2020a and I have 2 microphones and 2 speakers connected in my laptop, but when I try to use audiorecorder function I received error message: "no audio input device found on this system". Are there issues with matlab online?

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回答（3 个）

SC
SC 2020-7-1
Walter Roberson
Walter Roberson 2021-4-13
As mentioned by @Eddy Armas
At least up to R2021a, MATLAB Online does not support audio input.
MATLAB Online does support some audio output, but only for the Chrome browser at the present time. Supported functions include sound(), soundsc(), and audioplayer()
https://www.mathworks.com/products/matlab-online/limitations.html
Ali
Ali 2024-1-7
编辑：Walter Roberson 2024-1-7
audioFilePath = 'C:\Users\YA_ATTAR_26\Documents\MATLAB\ansari1024.wav';
samplingRates = [44100, 22050, 11025, 8192, 4096, 2048, 1024];
resultsCell = cell(length(samplingRates), 4);
for i = 1:length(samplingRates)
try
[audioData, Fs] = audioread(audioFilePath);
audioResampled = resample(audioData, samplingRates(i), Fs);
disp(['Playing at Sampling Rate: ' num2str(samplingRates(i)) ' samples/sec']);
if 0.5 == (Fs / samplingRates(i)) || (Fs / samplingRates(i)) < 0.5
aliasing = 'No';
else
aliasing = 'Yes';
end
voiceQuality = input('Please provide your observation on voice quality (e.g., good, fair, poor): ', 's');
fileSizeKB = numel(audioResampled) * 16 / 8 / 1024; % Assuming 16-bit audio
% Store results in the cell array
resultsCell{i, 1} = samplingRates(i);
resultsCell{i, 2} = voiceQuality;
resultsCell{i, 3} = fileSizeKB;
resultsCell{i, 4} = aliasing;
catch ME
disp(['Error processing at sampling rate ' num2str(samplingRates(i)) ':']);
disp(ME.message);
end
end
% Display results in a table format
resultsTable = cell2table(resultsCell, 'VariableNames', {'SamplingRate', 'VoiceQuality', 'FileSizeKB', 'Aliasing'});
disp(resultsTable);
  1 个评论
Walter Roberson
Walter Roberson 2024-1-7
audioFilePath = 'C:\Users\YA_ATTAR_26\Documents\MATLAB\ansari1024.wav';
The discussion is about MATLAB Online's handling of audio. MATLAB Online cannot read files from Windows.

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