Audio overlap loop: Difference between revisions
Added Go
(sample implementation in Tcl) |
(Added Go) |
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Line 4:
Optionally take parameters for delay between repetitions, and decay (fractional volume reduction between consecutive repetitions).
=={{header|Go}}==
As Go does not have any audio support in its standard library, this invokes the SoX utility's 'play' command with the appropriate parameters to achieve the 'echo chamber' effect.
<lang go>package main
import (
"bufio"
"fmt"
"log"
"os"
"os/exec"
"strconv"
)
func check(err error) {
if err != nil {
log.Fatal(err)
}
}
func main() {
fileName := "loop.wav"
scanner := bufio.NewScanner(os.Stdin)
reps := 0
for reps < 1 || reps > 6 {
fmt.Print("Enter number of repetitions (1 to 6) : ")
scanner.Scan()
input := scanner.Text()
check(scanner.Err())
reps, _ = strconv.Atoi(input)
}
delay := 0
for delay < 50 || delay > 500 {
fmt.Print("Enter delay between repetitions in microseconds (50 to 500) : ")
scanner.Scan()
input := scanner.Text()
check(scanner.Err())
delay, _ = strconv.Atoi(input)
}
decay := 0.0
for decay < 0.2 || decay > 0.9 {
fmt.Print("Enter decay between repetitions (0.2 to 0.9) : ")
scanner.Scan()
input := scanner.Text()
check(scanner.Err())
decay, _ = strconv.ParseFloat(input, 64)
}
args := []string{fileName, "echo", "0.8", "0.7"}
decay2 := 1.0
for i := 1; i <= reps; i++ {
delayStr := strconv.Itoa(i * delay)
decay2 *= decay
decayStr := strconv.FormatFloat(decay2, 'f', -1, 64)
args = append(args, delayStr, decayStr)
}
cmd := exec.Command("play", args...)
err := cmd.Run()
check(err)
}</lang>
=={{header|JavaScript}}/{{header|HTML}}==
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