Go에서 오디오 처리를 어떻게 사용하나요?

go get github.com/krig/go-sox

package main

import (
    "log"

    "github.com/krig/go-sox"
)

func main() {
    // Open the input file
    input, err := sox.OpenRead("input_file.wav")
    if err != nil {
        log.Fatalf("Failed to open input file: %v", err)
    }
    defer input.Release()

    // Read the input file into a buffer
    buffer, err := input.Read(nil)
    if err != nil {
        log.Fatalf("Failed to read input file: %v", err)
    }
}

go get github.com/gerow/go-wave

package main

import (
    "log"

    "github.com/gerow/go-wave"
)

func main() {
    // Create a wave file
    w, err := wave.Create("output_file.wav")
    if err != nil {
        log.Fatalf("Failed to create output file: %v", err)
    }
    defer w.Close()

    // Get the audio format
    format := wave.Format{
        Channels:      1,
        SampleRate:    44100,
        SignificantBits: 16,
        ByteRate:      88200,
        BlockAlign:    2,
    }

    // Set the audio format
    err = w.SetFormat(format)
    if err != nil {
        log.Fatalf("Failed to set format: %v", err)
    }

    // Write the audio data
    data := make([]byte, 1024)
    for i := range data {
        data[i] = 0xff
    }
    _, err = w.Write(data)
    if err != nil {
        log.Fatalf("Failed to write audio data: %v", err)
    }
}

go get github.com/cryptix/goaudio

package main

import (
    "fmt"
    "math"

    "github.com/cryptix/goaudio/snd"
    "github.com/cryptix/goaudio/sndfile"
)

func main() {
    filename := "input_file.wav"

    // Open the file for reading
    sf, err := sndfile.Open(filename, sndfile.Read, nil)
    if err != nil {
        panic(err)
    }
    defer sf.Close()

    // Get the number of frames and channels
    frameCount := sf.Samples
    channelCount := sf.Channels

    // Create a buffer to hold the samples
    buffer := make([]float64, frameCount*channelCount)

    // Read the samples into the buffer
    if err := snd.ReadInto(sf, buffer); err != nil {
        panic(err)
    }

    // Apply a sine wave to the samples
    for i := 0; i < len(buffer); i += channelCount {
        sample := buffer[i]
        angle := float64(i) * 2.0 * math.Pi / float64(sf.SampleRate)
        buffer[i] = sample * math.Sin(angle)
    }

    // Create a new file for writing
    newFilename := "output_file.wav"
    newSf, err := sndfile.Open(newFilename, sndfile.Write, &sf.Info)
    if err != nil {
        panic(err)
    }
    defer newSf.Close()

    // Write the modified samples
    if err := snd.Write(newSf, buffer); err != nil {
        panic(err)
    }

    fmt.Printf("Done")
}

go get github.com/mjibson/go-dsp

package main

import (
    "fmt"
    "os"
    "time"

    "github.com/Twister915/go-dsp/wavio"
)

func main() {
    filename := "recording.wav"

    // Open the wave file
    f, err := os.Open(filename)
    if err != nil {
        panic(err)
    }
    defer f.Close()

    // Parse the wave file
    w, err := wavio.Read(f)
    if err != nil {
        panic(err)
    }

    // Print the sample rate, duration, and length of the data
    fmt.Printf("Sample rate: %d
Duration: %s
Data length: %d
", 
                w.Original.SampleRate, 
                time.Duration(float64(w.Len()) / float64(w.Original.ByteRate) * float64(time.Second)), 
                w.Len())

    // Analyze the data
    var sum float64
    var max float64
    for _, s := range w.Data {
        sum += float64(s)
        if float64(s) > max {
            max = float64(s)
        }
    }

    average := sum / float64(len(w.Data))

    fmt.Printf("Peak amplitude: %f
", max)
    fmt.Printf("Average amplitude: %f
", average)
}