I want to change a wav file with 44100 sr to 22050 sr with out change in pitch and speed in python

Question

This is my code:

list_ = os.listdir("All_wavs")
for i,val in enumerate(list_):
  
    y, sr = librosa.load(f"All_wavs/{val}")
    data = librosa.resample(y, orig_sr =44100,target_sr= 22050)
    sf.write(f"wavs/{val}",data, samplerate =22050)

it works but the wav files sound different

Thanks for helping!

Ahmed AEK · Accepted Answer · 2023-04-28T09:01:03.150

1

librosa.load automatically resamples the input signal to 22050 unless specified otherwise, you could modify that using sr if you want and just save it, you don't need to do a second downsampling.

import librosa
import soundfile as sf

list_ = os.listdir("All_wavs")
for i,val in enumerate(list_):
    y, sr = librosa.load(f"All_wavs/{val}", sr=22050)
    sf.write(f"wavs/{val}",y, samplerate =22050)

edited Apr 28 '23 at 09:01

answered Apr 28 '23 at 08:57

Ahmed AEK

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I know it is 44100 – Max Melichov Apr 28 '23 at 08:59
will the new files have the same audio sound as with 44100 sr? – Max Melichov Apr 28 '23 at 09:03
@MaxMelichov there is some lost high frequency data, the audio might not be "as crisp", but it will sound like it's the same person talking. – Ahmed AEK Apr 28 '23 at 09:04

I want to change a wav file with 44100 sr to 22050 sr with out change in pitch and speed in python

1 Answers1