CODEWITHSUNDEEP
pythonaudiofftoscilloscope
iamgopal
iamgopal

Reputation: 9132

Line in audio input oscilloscope

I'm trying to build oscilloscope using line in Audio input and do filtering on it. I'm using python and Ubuntu.

I am able to send input to computer and read from line in audio input and record and play it.

Now I want to filter a particular frequency sin wave input at 300 Hz. How do I do that digitally ?

My guess is to use some kind of frequency filter using Fourier transform but I'm not sure.

Any help in right direction will be helpful. Thanks

Upvotes: 0

Views: 390

Answers (1)

David Jonsson
David Jonsson

Reputation: 364

An answer was given for 500Hz with JavaScript here Detect audio frequency from microphone with node.js You can easily translate that to Python.

Upvotes: 2

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