Questions tagged [stereo-signal]

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Why does this video's audio change depending on the playing device?

Yesterday I noticed that if I played this video from my smartphone on speaker, one could barely hear anything. On the other hand, if I used earphones I could hear it perfectly. Then, I tried with ...
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Mid/Side encoding/decoding in frequency domain instead of time domain

In the time domain let's say we have a signal $L_t$ and $R_t$. Then we can do mid/side encoding/decoding like so: $$M_t = \frac{L_t + R_t}{2}$$ $$S_t = \frac{L_t - R_t}{2}$$ $$L_t = M_t + S_t$$ $$...
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Is there any relation between mono/stereo recording and the peak frequency of sound detected?

I'm using pyaudio to record sound and return the peak frequency of the recorded sound. In one example, I use a sound card with 2 channels (stereo), and the peak frequency detected is the correct ...