love made-with-go betamax-was-a-thing

terminal audio visualizer for linux/unix/macOS/windows*

A visualization of catnip over time

• ALSA (linux FFmpeg)
• AVFoundation (macOS FFmpeg)
• DirectShow (windblows FFmpeg)
• Pipewire (pw-cat)
• PortAudio (linux/macOS/windblows (maybe))
• PulseAudio (parec/FFmpeg)

• go modules

  • github.com/nsf/termbox-go
  • github.com/integrii/flaggy
  • github.com/pkg/errors
  • github.com/noisetorch/pulseaudio
  • gonum.org/v1/gonum

• binaries

  • ffmpeg (required for FFmpeg backends)
  • parec (required for PulseAudio backend with parec)
  • pw-cat, pw-link (required for Pipewire backend)

• c libraries (optional, requires CGO - CGO_ENABLED=1)

  • fftw (fftw3) (enable with -tags fftw)
  • portaudio (portaudio-2.0) (enable with -tags portaudio)

# get source
git clone https://github.com/noriah/catnip.git
# cd to dir
cd catnip
# build and install catnip
go install ./cmd/catnip
# with portaudio
go install ./cmd/catnip -tags portaudio
# with fftw3
go install ./cmd/catnip -tags fftw
# with both portaudio and fftw3
go install ./cmd/catnip -tags portaudio,fftw

• use catnip list-backends to show available backends
• use catnip -b {backend} list-devices to show available devices
• use catnip -b {backend} -d {device} to run - use the full device name
• use catnip -h for information on several more customizations

long story, short explanation

update