Does this work?: Audio NumPy Array » ffmpegio audio-processing » NumPy Array #13
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Good afternoon thank you very much for sharing your great work!, it's very useful to have Because ffmpeg has great audio-/video-processing features, I had this idea: Is it possible to use
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Replies: 1 comment 4 replies
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@schittli - That's an interesting usecase that I didn't think of. I had to do some digging to find a workaround, and luckily there is an Here is a quick example: import ffmpegio as ff
import numpy as np
from matplotlib import pyplot as plt
fs = 16000
T = 1
x = np.random.default_rng().integers(2^-15,2^15,dtype='int16',size=(T*fs,2))
fsout,y = ff.audio.filter('anull', fs, x, ac=1) # no explicit filtering, just implicit stereo->mono conversion
plt.plot(x)
plt.plot(y)
plt.show()Let me know if this works for you |
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Good evening @tikuma-lsuhsc thank you very, very much for your help, your solution perfectly works. I am thrilled how elegantly you solved this task… it is ingenious that we can use ffmpeg via Thank you very much and all the best!, |
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Glad you find it useful. Feel free to drop in for more questions! -Kesh |
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I read the Conversation Dose that means the FFMPEGIO do not support the Stereo audio to Stereo audio NumPy array. |
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It should handle any channel configuration that FFmpeg can handle. It's his specific usecase in which he wanted a mono output. |
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@schittli - That's an interesting usecase that I didn't think of. I had to do some digging to find a workaround, and luckily there is an
anullfilter, which does nothing but just pass the input samples to output. With it, you can use thefilterfunction.Here is a quick example:
Let me know if this works for you