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Why is the Recorder empty when running this MATLAB …
https://stackoverflow.com/questions/6682073/why-is-the-recorder-empty-when-running-this-matlab-code
audio_recorder}); set(audio_recorder, 'TimerPeriod', 1/update_rate); set(audio_recorder, 'BufferLength', 1/update_rate); %# Start the recorder record(audio_recorder); end function audioRecorderTimerCallback(obj, event, audio_recorder) Fs = get(obj, 'SampleRate'); num_channels = get(obj, 'NumberOfChannels'); num_bits = get(obj, 'BitsPerSample'); try if …
Why do I receive an error when attempting to record data ...
https://www.mathworks.com/matlabcentral/answers/101269-why-do-i-receive-an-error-when-attempting-to-record-data-using-audiorecorder-in-matlab-7-8-r2009a
Recorder is empty. occurs when attempting to play an audiorecorder object before recording, since the object does not contain any recorded data. Refer to the related solution for instructions if you wish to turn off this particular warning message.
Object for recording audio - MATLAB
https://www.mathworks.com/help/matlab/ref/audiorecorder.html
Use an audiorecorder object to record audio data from an input device such as a microphone for processing in MATLAB ®.The audiorecorder object contains properties that enable additional flexibility during recording. For example, you can pause, resume, or define callbacks using the audiorecorder object functions.
audiorecorder (MATLAB Functions)
http://matlab.izmiran.ru/help/techdoc/ref/audiorecorder.html
isrecording(y) Indicates the status of recording. If 0, recording is not in progress. If 1, recording is in progress. play(y) Creates an audioplayer, plays the recorded audio data, and returns a handle to the created audioplayer. getplayer(y) Creates an audioplayerand returns a handle to …
audiorecorder (MATLAB Functions)
http://www.ece.northwestern.edu/local-apps/matlabhelp/techdoc/ref/audiorecorder.html
y = audiorecorder returns a handle to an 8-kHz, 8-bit, mono audio recorder object. y = audiorecorder(Fs,nbits,channels) returns a handle to an audio recorder object using the sampling rate, Fs ( in Hz), the sample size of nbits, and the number of channels.Fs can be any sampling rate supported by the audio hardware. Common sampling rates are 8000, 11025, 22050, and 44000.
Determine if recording is in progress - MATLAB isrecording
https://www.mathworks.com/help/matlab/ref/audiorecorder.isrecording.html
Pause the recording and check the status of the audiorecorder object. The isrecording function returns 1 when recording is progress and 0 when the recording is not in progress. pause (recObj); isrecording (recObj) ans = logical 0. Listen to the audio that has been recorded so far.
Object for recording audio - MATLAB - MathWorks …
https://la.mathworks.com/help/matlab/ref/audiorecorder.html
Use an audiorecorder object to record audio data from an input device such as a microphone for processing in MATLAB ®.The audiorecorder object contains properties that enable additional flexibility during recording. For example, you can pause, resume, or define callbacks using the audiorecorder object functions.
Using MATLAB to record audio
http://ece-research.unm.edu/hayat/ece314_05/audio_matlab.html
The version of Matlab used here is 7.0, but I believe it must also work well on Matlab 6.5 or above. To record audio and generate a vector with the audio samples, we need to go through 3 steps: Create an audiorecorder object; Record the audio; Extract the data from the audiorecorder object. These three steps are described below.
How to record audio in Matlab (with complete code) - YouTube
https://www.youtube.com/watch?v=C05tMF2kvpM
Code:clcclear allclose allwarning offFs=8000;%Sampling frequency in hertzch=1;%Number of channels--2 options--1 (mono) or 2 (stereo)datatype='uint8';nbits=16...
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