2 ms·

I’ve seen audio systems that use my hand tapping in a pad to “learn” (sample over time) the beat/tempo in real-time. I wonder if there’s some signal correlated

I’ve seen audio systems that use my hand tapping in a pad to “learn” (sample over time) the beat/tempo in real-time. I wonder if there’s some signal correlated enough with beat to stand in for my hand? Edit: their code works on samples of audio. [0] A “real-time” solution could be short samples immediately processed after capturing until some quality metric is met. [0] https://colab.research.google.com/drive/1tuOqNyO9gdMmYJsj33fP_QOfpRsm2tmt?usp=sharing https://colab.research.google.com/drive/1tuOqNyO9gdMmYJsj33f...

fergonco 5y ago
Anecdote from drummer here. I made an Android application that would detect the stroke on the snare and would show the tempo. Of course, you only hit the snare in 2 and 4, so you had to multiply it by two... and forget it completely during breaks! What amazed me is that it was so sensitive that I could detect even normal footsteps on rather solid floors.
- Acen 5y ago
  Something that's always amazed me doing live sound work, is how sensitive mics are to what I'd class as practically inaudible noises. Say I have a mic on a stand at the back of a room (i.e. Earthworks M30), someone can enter the door from the opposite side, and quietly walk somewhere else in the room. The mic will pick up each step they're making in a pretty obvious fashion on a spectrograph in Smaart. Or a fan from an LED light hanging from truss in the ceiling.