Convolve vector with audio file
5 visualizzazioni (ultimi 30 giorni)
Mostra commenti meno recenti
Audio file: y = 537146x2 double
function: hx=1x13839 double
I need to convolve an audio file with the transfer function of an impulse response of an FIR filter to remove a range of frequencies, but I'm not sure how when the audio file vector is so much larger than the function vector.
0 Commenti
Risposte (1)
Swetha Polemoni
il 21 Dic 2020
Hi Matthew Strunks
It is my understanding that you want to convolve your audio signal and FIR filter. Since convolution in time domain is equal to multiplication in frequency domain, you can try first converting both into frequency domain and multiply.
For converting audio signal to frequency domain "stft" (short time fourier transform) can be used. Since stft applies fft on windowed audio signal, characteristiics of audio signal is preserved even if the length of audio signal is large.
Feel free to experiment with window size, so that the result is same as you expected.
0 Commenti
Vedere anche
Categorie
Scopri di più su Audio Processing Algorithm Design in Help Center e File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!