https://www.mathworks.com/products/matlab-online/limitations.html, "MATLAB Online cannot interact with most other hardware, including instrument control. What version are you using? I'm not in a "broken" state now so everything works fine but if it fails, then I'm going to check. https://la.mathworks.com/matlabcentral/answers/490171-unable-to-play-audio-because-no-audio-outputs-were-found, https://la.mathworks.com/matlabcentral/answers/490171-unable-to-play-audio-because-no-audio-outputs-were-found#comment_765503, https://la.mathworks.com/matlabcentral/answers/490171-unable-to-play-audio-because-no-audio-outputs-were-found#answer_401062, More Answers in the Distance Learning Community. I'm not sure what happens to eventually break it. Choose a web site to get translated content where available and see local events and algorithm works properly and show the results but in silence i.e it doesn't play any sound. your location, we recommend that you select: . In case info returns an empty struct, it could be because of faulty drivers. Only a matlab restart can resolve this for me, but i need to reset on runtime, e.g. But it will have lesser capabilities compared to . . Accelerating the pace of engineering and science, MathWorks es el lder en el desarrollo de software de clculo matemtico para ingenieros. That (, ) might be a faster way to fix it than restarting. It's not currently broken (yet). You can also select a web site from the following list: Select the China site (in Chinese or English) for best site performance. So it sees 4 input microphones, but none of the output speakers for the 4 audio systems (internal, headset, etc.). Please let me know what I can do to hear the output. your location, we recommend that you select: . load handel;sound (y,Fs); You can then apply the Fourier transform to the columns of x. x = 1: 16;x = buffer (x,4,2) sites are not optimized for visits from your location. MathWorks is the leading developer of mathematical computing software for engineers and scientists. Resetting the audiodevice list using audiodevreset() brings up the plugged in devices in the list, but I can't make Matlab play any sound, neither using soundsc(), nor with audioplayer, be it with or without explicit device ID, using any of the previous suggestions like, That's good information. Find the treasures in MATLAB Central and discover how the community can help you! Better than the above option is buffer(), which allows you to construct overlapping segments. Warning: Unable to play audio because no audio outputs were found. This did not work for me. I cannot reproduce the problem reliably, I have the feeling the problem occurs if no audio device is plugged in when starting matlab and it is plugged in later. But it will have lesser capabilities compared to 'audioplayer' object. Difficult to say. Find the treasures in MATLAB Central and discover how the community can help you! It certainly works after it's been open not long, as with the other versions. https://uk.mathworks.com/matlabcentral/answers/818250-warning-unable-to-play-audio-because-no-audio-outputs-were-found, https://uk.mathworks.com/matlabcentral/answers/818250-warning-unable-to-play-audio-because-no-audio-outputs-were-found#comment_1738699, https://uk.mathworks.com/matlabcentral/answers/818250-warning-unable-to-play-audio-because-no-audio-outputs-were-found#comment_1739389, https://uk.mathworks.com/matlabcentral/answers/818250-warning-unable-to-play-audio-because-no-audio-outputs-were-found#comment_1913880, https://uk.mathworks.com/matlabcentral/answers/818250-warning-unable-to-play-audio-because-no-audio-outputs-were-found#comment_1913930, https://uk.mathworks.com/matlabcentral/answers/818250-warning-unable-to-play-audio-because-no-audio-outputs-were-found#answer_867105. to figure out if one or more devices has a possible faulty driver. Warning: Unable to play audio because no audio outputs were found. Based on Please let me know what I can do to hear the output. Warning: Unable to play audio because no audio outputs were found. If you are using matlab online then audio can only be used with Chrome browser. thanks a lot! Instead, if info returns a struct with available outputs for audio (non-empty), you should be able to play the audio using audioplayer object. Reload the page to see its updated state. I'm using MATLAB desktop, not online. Based on Update all your drivers or disable devices one at a time and restart MATLAB and try 'audiodevinfo' to figure out if one or more devices has a possible faulty driver. Update all your drivers or disable devices one at a time and restart MATLAB and try 'audiodevinfo' to figure out if one or more devices has a possible faulty driver. Not that I've heard of. Suppose you have an audio signal sampled at 20 kHz. , no because I restarted and it's working again. If you just want to play the music in MATLAB Online, you could use , instead. Warning: Unable to play audio because no audio outputs were found. Warning: Unable to play audio because no audio. > In audiovideo.internal/audioplayerDesktop/hasNoAudioHardware (line 565), In audiovideo.internal/audioplayerDesktop/play (line 228), This error could be the result of the path being modified, or the necessary libraries being removed to access the sound components on the computer. https://www.mathworks.com/matlabcentral/answers/516993-warning-unable-to-play-audio-because-no-audio-outputs-were-found, https://www.mathworks.com/matlabcentral/answers/516993-warning-unable-to-play-audio-because-no-audio-outputs-were-found#answer_425669, https://www.mathworks.com/matlabcentral/answers/516993-warning-unable-to-play-audio-because-no-audio-outputs-were-found#comment_1796883, https://www.mathworks.com/matlabcentral/answers/516993-warning-unable-to-play-audio-because-no-audio-outputs-were-found#comment_2186875, https://www.mathworks.com/matlabcentral/answers/516993-warning-unable-to-play-audio-because-no-audio-outputs-were-found#comment_2195670, https://www.mathworks.com/matlabcentral/answers/516993-warning-unable-to-play-audio-because-no-audio-outputs-were-found#comment_2288025, https://www.mathworks.com/matlabcentral/answers/516993-warning-unable-to-play-audio-because-no-audio-outputs-were-found#answer_978075, https://www.mathworks.com/matlabcentral/answers/516993-warning-unable-to-play-audio-because-no-audio-outputs-were-found#comment_2195675, https://www.mathworks.com/matlabcentral/answers/516993-warning-unable-to-play-audio-because-no-audio-outputs-were-found#answer_978130, https://www.mathworks.com/matlabcentral/answers/516993-warning-unable-to-play-audio-because-no-audio-outputs-were-found#answer_1006070, https://www.mathworks.com/matlabcentral/answers/516993-warning-unable-to-play-audio-because-no-audio-outputs-were-found#comment_2264100, https://www.mathworks.com/matlabcentral/answers/516993-warning-unable-to-play-audio-because-no-audio-outputs-were-found#comment_2265220, https://www.mathworks.com/matlabcentral/answers/516993-warning-unable-to-play-audio-because-no-audio-outputs-were-found#comment_2265995, https://www.mathworks.com/matlabcentral/answers/516993-warning-unable-to-play-audio-because-no-audio-outputs-were-found#comment_2274300, https://www.mathworks.com/matlabcentral/answers/516993-warning-unable-to-play-audio-because-no-audio-outputs-were-found#comment_2274615, https://www.mathworks.com/matlabcentral/answers/516993-warning-unable-to-play-audio-because-no-audio-outputs-were-found#comment_2274630. I've seen where others were advise to us "sound" to play a tune, but that is what I am using but no luck. I'm using MATLAB online for a Coursera class and I'm trying to play a simple sound. your location, we recommend that you select: . i've got a matlab code that load a wav audio file and play some special part of it. I am using the MATLAB Online R2019b version. Hey, I'm trying to play an mp3 file on MATLAB, but it's giving me this error: Warning: Unable to play audio because no audio outputs were found. object. did you try audiodevreset() and looked into the information again? Other MathWorks country distance_learningno audio outputs were found. Unable to complete the action because of changes made to the page. play audio because no audio outputs were found. offers. I have to do the restoredefaultpath to fix it. Additionally, if info has recognized multiple audio outputs, you can also use "device ID" to specify the output audio device. Instead, if info returns a struct with available outputs for audio (non-empty), you should be able to play the audio using audioplayer object. p=audioplayer (y,Fs); play (p, [1 get (p, 'SampleRate')*3]); And, the Error that I get is: Warning: Unable to play audio because no audio outputs were found. Best Answer If you just want to play the music in MATLAB Online, you could use 'sound' instead. In the function window, this is the code I typed: I get the following error message below. I'm using the R2022b pre-release and I don't think it's happened to me there yet, though I don't remember playing sound files there much. load gong.mat sound (y, Fs) Warning: Unable to play audio because no audio outputs were found. Again, spectrogram provides a NOVERLAP input argument that handles this easily. Error evaluating 'InitFcn' callback of Audio Device Writer block (mask) 'lllabtetecom/Audio Device Writer'. if this issue comes up during use of a self created app. sites are not optimized for visits from your location. Please let me know what I can do to hear the output. You may receive emails, depending on your. I am using the MATLAB Online R2019b version. MathWorks is the leading developer of mathematical computing software for engineers and scientists. audiodevinfo returns a structure containing two fields, input and output. Instead, if info returns a struct with available outputs for audio (non-empty), you should be able to play the audio using. I can try it. Then it's fixed for a while but something causes it to break again and I'll get the error message again. I do set the path to some folders in my startup.m file but that happens every time I start MATLAB and it works fine until some mysterious process causes it to break, so it's not adding things to the path that's causing it to break. Unable to complete the action because of changes made to the page. MathWorks is the leading developer of mathematical computing software for engineers and scientists. > In audiovideo.internal/audioplayerOnline/hasNoAudioHardware (line 473), audiovideo.internal/audioplayerOnline/initialize (line 310), audiovideo.internal.audioplayerOnline (line 152). I have a PlaySoundFile() function that plays a sound file through the speakers. This results in a struct array containing all available & recognized audio inputs/outputs. Reload the page to see its updated state. I still get an error message. But it will have lesser capabilities compared to , You may receive emails, depending on your. Accelerating the pace of engineering and science. > In audiovideo.internal/audioplayerOnline/hasNoAudioHardware (line 473) In audiovideo.internal/audioplayerOnline/initialize (line 310) In audiovideo.internal.audioplayerOnline (line 152) You can specify the window length (the number of samples corresponding to 10 msec) as an input. https://www.mathworks.com/matlabcentral/answers/490171-unable-to-play-audio-because-no-audio-outputs-were-found, https://www.mathworks.com/matlabcentral/answers/490171-unable-to-play-audio-because-no-audio-outputs-were-found#comment_765503, https://www.mathworks.com/matlabcentral/answers/490171-unable-to-play-audio-because-no-audio-outputs-were-found#answer_401062, More Answers in the Distance Learning Community. load gong.mat sound (y, Fs) Warning: Unable to play audio because no audio outputs were found. i do n't know what to do? ", If you just want to play the music in MATLAB Online, you could use , instead. Your answer helps me so much! Unable to complete the action because of changes made to the page. Reload the page to see its updated state. I don't believe it's because I'm removing sound libraries. I wish I could figure out what is causing it to break. Find the treasures in MATLAB Central and discover how the community can help you! Unable to complete the action because of changes made to the page. Walter Roberson on 9 Nov 2019 Accepted Answer Ajay Pattassery on 12 Nov 2019 If you just want to play the music in MATLAB Online, you could use 'sound' instead. I am using the MATLAB Online R2019b version. Choose a web site to get translated content where available and see local events and But we'd really like to know what happened to break it in the first place, You may receive emails, depending on your. can't make matlab to play sounds again, there are audio devices available, resetting/rehashing has not the effect i hoped to see. To fix this, in the command window, use -, Further, evaluate if MATLAB is able to read the available outputs for audio on your PC using the function. I'm trying to play an audio file from code listed in an textbook for a MATLAB class in Coursera. offers. info = audiodevinfo info = struct with fields: input: [12 struct] output: [12 struct] Accelerating the pace of engineering and science. Other MathWorks country Choose a web site to get translated content where available and see local events and Because when I cut a stereo audio, this happens to be mono. Other MathWorks country Unable to play audio because no audio outputs were found - MATLAB Answers - MATLAB Central Unable to play audio because no audio outputs were found 90 views (last 30 days) Show older comments Luciano Muratore on 9 Nov 2019 0 Link Answered: Ajay Pattassery on 12 Nov 2019 Accepted Answer: Ajay Pattassery Hi there, I have reported it. I'll check that next time. Update all your drivers or disable devices one at a time and restart MATLAB and try 'audiodevinfo' to figure out if one or more devices has a possible faulty driver. audiovideo.internal/audioplayerDesktop/initialize (line 354), audiovideo.internal.audioplayerDesktop (line 198), audiovideo.internal/audioplayerDesktop/play (line 228). You can then apply the Fourier transform to the columns of x. Update all your drivers or disable devices one at a time and restart MATLAB and try '. ' If you cannot use spectrogram(), you can use reshape() as one option. You can also select a web site from the following list: Select the China site (in Chinese or English) for best site performance. Choose a web site to get translated content where available and see local events and > In audiovideo.internal/audioplayerOnline/hasNoAudioHardware (line 473) In audiovideo.internal/audioplayerOnline/initialize (line 310) In audiovideo.internal.audioplayerOnline (line 152) In audioplayer (line 134) In sound (line 74) I am getting the same issue. You can also select a web site from the following list: Select the China site (in Chinese or English) for best site performance. View information about the input and output audio devices on the system by calling audiodevinfo with no inputs. sites are not optimized for visits from your location. But it will have lesser capabilities compared to , You may receive emails, depending on your. I have reported it. I'm running MATLAB from Chrome. Based on Find the treasures in MATLAB Central and discover how the community can help you! Other MathWorks country offers. your location, we recommend that you select: . offers. You might not have a speaker or sound card connected, or its volume might not be up high enough or it might be muted. Walter Roberson on 9 Nov 2019 https://www.mathworks.com/products/matlab-online/limitations.html "MATLAB Online cannot interact with most other hardware, including instrument control." You got my upvote! Not sure what was happening over the weekend, but when I checked again today, it worked. Instead, if info returns a struct with available outputs for audio (non-empty), you should be able to play the audio using audioplayer object. Based on I am using 2022a release. sites are not optimized for visits from your location. How do I set the audio outputs? Callback string is 'audioblkAudioDeviceIO(gcbh, 'initfcn');', . Learn more about sound, audio https://www.mathworks.com/products/matlab-online/limitations.html, "MATLAB Online cannot interact with most other hardware, including instrument control. it used to play sound on my pc but now there is no sound. but I am receiving this warning. I am getting the same issue. Accelerating the pace of engineering and science. You can also select a web site from the following list: Select the China site (in Chinese or English) for best site performance. i examine it on my laptop and it works right and play sound. Hi Karthik, Why can't you just use spectrogram()? p=audioplayer (y,Fs); play (p, [1 get (p, 'SampleRate')*3]); And, the Error that I get is: Warning: Unable to play audio because no audio outputs were found. play audio because no audio outputs were found. Warning: Unable to play audio because no audio outputs were found. ", If you just want to play the music in MATLAB Online, you could use , instead. , did a popup appear asking you to give permission to Chrome to use the microphone? > In audiovideo.internal/audioplayerOnline/hasNoAudioHardware (line 473) In audiovideo.internal/audioplayerOnline/initialize (line 310) In audiovideo.internal.audioplayerOnline (line 152) anything new on this topic? Reload the page to see its updated state. I had the same problem as Anthony and it was cured thanks to your solution. 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