Issues with audiorecorder function in Matlab online R2020a?
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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?
3 commentaires
Walter Roberson
le 15 Avr 2021
It cannot be done in MATLAB Online in any current release.
Réponses (3)
SC
le 1 Juil 2020
Try doing these and check if MATLAB is able to recognize your devices:
if still the problem exists, check this out:
Walter Roberson
le 13 Avr 2021
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()
0 commentaires
Ali
le 7 Jan 2024
Modifié(e) : Walter Roberson
le 7 Jan 2024
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 commentaire
Walter Roberson
le 7 Jan 2024
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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