Why I'm getting different sampling rate for same wav file with different libraries?

Question

I'm trying to get the sampling rate of wav file using several python libraries, and I'm getting different results:

(1):

import wave
wave_file = wave.open(fname, 'rb')
frame_rate = wave_file.getframerate()

output of frame_rate = 16000

(2):

from scipy.io.wavfile import read as read_wav
sampling_rate, data = read_wav(fname)

output of sampling_rate = 16000

(3)

import librosa
X, sample_rate = librosa.load(fname)

output of sample_rate = 22050

Why the output of librosa library is different ?

Does this answer your question? [Sampling rate issue with Librosa](https://stackoverflow.com/questions/38188359/sampling-rate-issue-with-librosa) — Hendrik, Dec 09 '20 at 08:47

score 2 · Accepted Answer · answered Dec 09 '20 at 08:35

2

Because librosa.load() makes a resampling to that frequency if you don't specify the keyword argument sr.

You can find a detailed answered here: Sampling rate issue with Librosa

answered Dec 09 '20 at 08:35

fullfine

1 Answers1