rtaudio_example_rust

• rewrite of rtaudio_example (https://github.com/majorx234/rtaudio_example) in Rust
• learning Rust & rodio
• learning audio prgramming

Info

• Command Line Synthesizer
• pipe Data from one exe to another
• build with cargo:cargo build
• change path to targe/debug
• use ./gen_wave to generate a wave
  • ./gen_wave saw 660.0 2.0 -creates a saw wave with 660hz for 2 seconds
  • ./gen_wave invsaw 2093.0 0.25 -creates a inverted saw wave with 2093hz for 0.25 seconds
  • ./gen_wave sine 440.0 0.5 -creates a sine wave with 440hz for 0.5 seconds
  • ./gen_wave tri 880.0 1.0 -creates a triangle wave with 880hz for 1 seconds
• adsr: pipe into ./adsr_modificator 0.05 0.2 0.5 0.25
  • 4 paramaters for attack decay sustain and delay nneds to be set
• delay: simple delay (parameters delay time is 500ms, feedback is 0.33, both are hardcoded for now)
• overdrive: pipe into ./overdrive
• overdrive_unsymetric: pipe into ./overdrive_unsymetric
• WIP: filter
• sinks:
  • play_wave
  • plot_wave plot with help of plotly to html/svg (opens in browser)
  • spectrogram 1024 512 generate a plot of frequency development over time (window_size = 1024, step_size = 512)

examples:

• play a wav

./gen_wave saw 440 1.0 |./adsr_modificator 0.05 0.2 0.5 0.25|./play_wave

• plot a wav via GNU Plot

./gen_wave sin 440 0.1 |./adsr_modificator 0.05 0.2 0.5 0.25|gnuplot -p -e "set xrange[0:4800]; plot '-' "

• 2nd plot via GNU Plot

./gen_wave tri 440 0.2|./adsr_modificator 0.05 0.2 0.5 0.25|gnuplot -p -e "set xrange[0:9600]; plot '-' "

• play a fm wav

./gen_wave fm 50 6.0 |./adsr_modificator 0.05 0.2 0.5 0.25|./play_wave

• plot an overdrived wav:

./gen_wave sin 240 1.0|./overdrive_unsymetric|./plot_wave

• get spectrogram of frequency modulation:

./gen_wave fm 4400 1.0|.spectrogram 1024 512

ToDo

• fix Filter
• play Sandstorm
• support named pipes/ piping via file descriptors
• "real time" - sound processing

Links

• https://github.com/derekdreery/mixjack
  • taken idea for filter design
• https://github.com/Bujiraso/rickyhan.com-guitar-effects-in-rust
• https://github.com/0b01/rasta
  • taken idea for effect trait and code for overdrive, delay
• https://github.com/tsoding/haskell-music
  • thx to tsoding for inspiration of building a cool synth
• https://github.com/snd/stft
  • using the implementation of stft (updated to newer rustfft api)

History

• 20230107 - Version 1.0.0
  • data between nodes are now send without size information (pure samples)