skratchdot / audio-generation-loss

Evaluating lossless/lossy audio compression and generation loss

Audio Generation Loss

A few links

• https://en.wikipedia.org/wiki/Generation_loss
• https://ffmpeg.org/ffmpeg-filters.html#showwavespic

Example Commands

Generate sine waves

sox -n sine440.wav rate 44.1k synth 1 sine 440
sox -n sine441.wav rate 44.1k synth 1 sine 441

Generate Spectrogram

sox sine440.wav -n spectrogram -o spectrogram-1.png

Generate Waveform

ffmpeg -y -i sine440.wav -filter_complex "showwavespic" -frames:v 1 waveform-1.png

ffmpeg -y -i sine440.wav -filter_complex "showwavespic=s=600x120:colors=white,negate[a];color=black:600x120[c];[c][a]alphamerge" waveform-1.png

ffmpeg -y -i sine440.wav -filter_complex "showwavespic=colors=steelblue" -frames:v 1 waveform-1.png