Usage

Remix signal

Create AM/FM signal with three channels and a sampling rate of 16kHz using audresample.am_fm_synth().

import audresample

sampling_rate = 16000
num_samples = 16500
num_channels = 3
signal = audresample.am_fm_synth(
    num_samples,
    num_channels,
    sampling_rate,
)
signal.shape

(3, 16500)

Mixdown signal to mono.

mixed = audresample.remix(
    signal,
    mixdown=True,
)
mixed.shape

(1, 16500)

Select the last channel.

mixed = audresample.remix(
    signal,
    channels=-1,
)
mixed.shape

(1, 16500)

Select the second and first channel.

mixed = audresample.remix(
    signal,
    channels=[1, 0],
)
mixed.shape

(2, 16500)

Mixdown first and second channel to mono.

mixed = audresample.remix(
    signal,
    channels=[0, 1],
    mixdown=True,
)
mixed.shape

(1, 16500)

Resample signal

Create AM/FM signal with two channels and a sampling rate of 48kHz using audresample.am_fm_synth().

import audresample

original_rate = 48000
num_original = 16000
num_channels = 2
signal = audresample.am_fm_synth(
    num_original,
    num_channels,
    original_rate,
)
signal.shape

(2, 16000)

Resample signal to 8kHz using audresample.resample().

target_rate = 8000
resampled = audresample.resample(
    signal,
    original_rate,
    target_rate,
)
resampled.shape

(2, 2667)