convert stereo to mono audioregion by mixing?

[ma7555]

any ideas on mixing a stereo AudioRegion into single mono channel?

my trials with region.samples[0] + region.samples[1] is failing..

[amsehili]

Hi,

You can do this using pydub (pip install pydub) or using standard python module audioop.

pydub will work with variable number of channels whereas the latter method can only convert stereo (2-channel) to mono.

from pydub import AudioSegment                                                                                                                                                                    
from auditok import AudioRegion                                                                                                                                                                   

region = AudioRegion.load("stereo_file.wav")                                                                                                               
segment = AudioSegment(data=bytes(region), sample_width=region.sw, frame_rate=region.sr, channels=region.ch)                                                                                      
segment.channels = 1                                                                                                                                                                              
region_mono = AudioRegion(segment._data, sample_width=region.sw, sampling_rate=region.sr, channels=1)

or

import audioop                                                                                                                                                                                    
data = audioop.tomono(bytes(region), region.sample_width, 0.5, 0.5)
region_mono = AudioRegion(data, sample_width=region.sw, sampling_rate=region.sr, channels=1)

[ma7555]

thanks!