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|
package main
import (
"fmt"
"math"
"os"
"time"
"github.com/cryptix/wav"
)
const (
bits = 32
rate = 44100
)
func main() {
wavOut, err := os.Create("Test.wav")
checkErr(err)
defer wavOut.Close()
meta := wav.File{
Channels: 1,
SampleRate: rate,
SignificantBits: bits,
}
writer, err := meta.NewWriter(wavOut)
checkErr(err)
defer writer.Close()
start := time.Now()
var freq float64
freq = 0.0001
for n := 0; n < 50*rate; n += 1 {
y := int32(0.8 * math.Pow(2, bits-1) * math.Sin(freq*float64(n)))
freq += 0.000002
err = writer.WriteInt32(y)
checkErr(err)
}
fmt.Printf("Simulation Done. Took:%v\n", time.Since(start))
}
func checkErr(err error) {
if err != nil {
panic(err)
}
}
|
