Andrey P. apdevelop

## ffmpeg-audio.md

      
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                apdevelop
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              October 8, 2019 19:51
            
              
                Useful ffmpeg audio snippets
              
          
    Useful ffmpeg audio snippets


Generating 400Hz sine wave, encoding it with G.711 μ-law codec and streaming using RTP/UDP protocol (PCMU)

ffmpeg -re -f lavfi -i aevalsrc="sin(400*2*PI*t)" -ar 8000 -f mulaw -f rtp rtp://127.0.0.1:16384
output format will be: Stream #0:0: Audio: pcm_mulaw, 8000 Hz, mono, s16, 64 kb/s

Cropping audio file at given position and length