Status: (Beta :- stabilising API)

see "examples" folder for some uses.

Overview/docs:

Installation:

 go get github.com/splace/signals   

Example:

package main

import . "github.com/splace/signals"
import (
	"fmt"
	"os"
)

var OneSecond = X(1)

func main() {
	signal := Modulated{Sine{OneSecond/100},NewConstant(-6)}
	// save file named after the go code of the signal
	file, err := os.Create(fmt.Sprintf("%+v.wav", signal)) 
	if err != nil {
		panic(err)
	}
	defer file.Close()
	Encode(file, 2, 8000, OneSecond, signal)
}

Produces file: Sine wave, 100hz, 50% volume (-6dB), 1 sec, @8k samples/sec, 2byte signed PCM (s16), WAV file

Features:

• sources:- Sine, Square, Pulse, Heavyside, Bittrain, RampUp, RampDown, Sigmoid, PCM{8|16|24|32|48}bit (PCM sources can be stored in wav files)

• modifiers:- Delayed, Spedup, Looped, Inverted, Reversed, Cached, RateModulated, Triggered, Segmented

• combiners:- Sequenced, Modulated, Stacked, Composite

• extras(non-core):- Depiction, ADSR, Noise, Wave (stream)

Extras examples: Depiction of "Stack{Sine{unitX/100}, Sine{unitX/50}}", red/black,(3200px.600px) for 4 * unitX.

(see )