how to create a signal with parameters that can be changed while the signal is running?

Hello everyone,

I have this problem. I need to create a sine wave and be able to change it's magnitude while the signal is running.

I tried generating a sine wave in background continuously, but i can only change the magnitde if i preload the data again and start another signal.

Please help if you know a way.

regards

Ali

[Ali Albaidhani]

is it even possible to generate such a thing with matlab?

[Walter Roberson]

I recommend that you read the discussion at https://www.mathworks.com/matlabcentral/answers/1692675-how-to-display-audio-file-length-in-matlab-gui#comment_2096115

Answer 1

[Jeffrey Clark]

It is possible that this low-level audio interface could work for you:

pa-wavplay - File Exchange - MATLAB Central (mathworks.com)