toot

type InputDevice struct {
	Name   string
	Stereo bool
}

type Microphone interface {
	beep.Streamer
	Start(ctx context.Context) error
	Close() error
	Format() beep.Format
	DeviceInfo() portaudio.DeviceInfo
	SetSampleRate(rate beep.SampleRate)
}

type Spectra []SpectrumSample

type SpectrumSample struct {
	Frequency float64
	Value     float64
}

type Visualizer interface {
	Bin(s Spectra) []float64
}