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version 1.2 (207 KB) by Marcus Vollmer
Recording audio signals from an input device with live analysis of the immediate signal and spectrogram.


Updated 03 Jun 2019

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This application will record audio signals from an input device. While recording live analysis are shown as plots of the immediate signal and the spectrogram. Display length and the frequency window are adjustable. Unlimited recording is possible and can be stopped by pressing a button. Afterwards you are able to save the record as a wav-file, play the audio record, open the waveform and spectrogram as separate figures or start a new record.

Cite As

Marcus Vollmer (2020). LiveRecording (, MATLAB Central File Exchange. Retrieved .

Comments and Ratings (18)


Dear Tiantian,
I rebuild LiveRecording and the toolbox should appear in the APP section.

Tiantian Li

I am sorry to bother you. But I would like to ask why the APP could not be found in 'Apps' after installing?

fw shi

Extremely useful!

Wei Ma

I think the signal should be saved in workspace to improve the app

Extremely useful. My students can understand time-frequency analysis much more easier nnnnnnnnnnnnnnnow.

xin zhang

Sorry about my previous comment. I fund this codes just by clicking "View File List" when I put cursor on the "LiveRecording" icon in "Apps" toobar of the Matlab(Version 2013b).

xin zhang

thanks a lot. It gives me some hints. If you post the details of the code, it will be nice.

The file size is about 105 KB. Probably the .app file will not appeat in the preview of your zip-program. Try to unzip/decompress first.

Clay Pipkin

My apologies Ididn't mean to set the rating to 1 star. However, the file does not contain any data/code.

Clay Pipkin

The link doesn't contain any data




Rebuild as mlapp

v1.1: - Added unlimited recording option with stop button.
- Bug solved in visualization of the spectrogram using R2015a and above

MATLAB Release Compatibility
Created with R2018a
Compatible with any release
Platform Compatibility
Windows macOS Linux