Cannot play steam from You Tube Audio

[algnot]

I want to use github.com/kkdai/youtube/v2 and github.com/bwmarrin/discordgo to play youtube audio in my channel I write this code I debug and found that video, err := client.GetVideo(url) and stream, _, err := client.GetStream(video, &formats[0]) are returning correctly, but the audio coming out of my script sounds weird. Can anyone help me?

package bot

import (
	"bufio"
	"fmt"
	"github.com/bwmarrin/discordgo"
	"github.com/kkdai/youtube/v2"
	"io"
	"log"
	"os/exec"
	"time"
)

func playYouTubeAudio(vc *discordgo.VoiceConnection, url string) error {
	client := youtube.Client{}

	video, err := client.GetVideo(url)
	if err != nil {
		return fmt.Errorf("error getting video info: %v", err)
	}

	formats := video.Formats.WithAudioChannels()
	if len(formats) == 0 {
		return fmt.Errorf("no audio formats available for video")
	}

	stream, _, err := client.GetStream(video, &formats[0])
	if err != nil {
		return fmt.Errorf("error getting stream: %v", err)
	}
	defer stream.Close()

	cmd := exec.Command("ffmpeg", "-i", "pipe:0", "-f", "opus", "-ar", "48000", "-ac", "2", "pipe:1")

	ffmpegIn, err := cmd.StdinPipe()
	if err != nil {
		return fmt.Errorf("error creating stdin pipe: %v", err)
	}

	ffmpegOut, err := cmd.StdoutPipe()
	if err != nil {
		return fmt.Errorf("error creating stdout pipe: %v", err)
	}

	ffmpegErr, err := cmd.StderrPipe()
	if err != nil {
		return fmt.Errorf("error creating stderr pipe: %v", err)
	}

	go func() {
		scanner := bufio.NewScanner(ffmpegErr)
		for scanner.Scan() {
			log.Println("FFmpeg: ", scanner.Text())
		}
	}()

	if err := cmd.Start(); err != nil {
		return fmt.Errorf("error starting ffmpeg: %v", err)
	}

	go func() {
		defer func(ffmpegIn io.WriteCloser) {
			err := ffmpegIn.Close()
			if err != nil {
				log.Printf("error closing ffmpeg stream: %v", err)
			}
		}(ffmpegIn)

		_, err := io.Copy(ffmpegIn, stream)
		if err != nil {
			log.Printf("error copying stream to ffmpeg: %v", err)
		}
	}()

	err = vc.Speaking(true)
	if err != nil {
		return err
	}
	defer func(vc *discordgo.VoiceConnection, b bool) {
		err := vc.Speaking(b)
		if err != nil {
			log.Printf("error speaking: %v", err)
		}
	}(vc, false)

	err = playAudioStream(vc, ffmpegOut)
	if err != nil {
		return fmt.Errorf("error playing audio stream: %v", err)
	}

	if err := cmd.Wait(); err != nil {
		return fmt.Errorf("ffmpeg exited with error: %v", err)
	}

	return nil
}

func playAudioStream(vc *discordgo.VoiceConnection, stream io.Reader) error {
	buffer := make([]byte, 960*2*2)

	for {
		n, err := stream.Read(buffer)
		if err != nil && err != io.EOF {
			return fmt.Errorf("error reading audio stream: %v", err)
		}
		if n == 0 {
			break
		}

		vc.OpusSend <- buffer[:n]
		time.Sleep(20 * time.Millisecond)
	}

	return nil
}

This is log in console

Bot is now running
2024/10/13 16:14:11 FFmpeg:  ffmpeg version 7.1 Copyright (c) 2000-2024 the FFmpeg developers
2024/10/13 16:14:11 FFmpeg:    built with Apple clang version 16.0.0 (clang-1600.0.26.3)
2024/10/13 16:14:11 FFmpeg:    configuration: --prefix=/opt/homebrew/Cellar/ffmpeg/7.1 --enable-shared --enable-pthreads --enable-version3 --cc=clang --host-cflags= --host-ldflags='-Wl,-ld_classic' --enable-ffplay --enable-gnutls --enable-gpl --enable-libaom --enable-libaribb24 --enable-libbluray --enable-libdav1d --enable-libharfbuzz --enable-libjxl --enable-libmp3lame --enable-libopus --enable-librav1e --enable-librist --enable-librubberband --enable-libsnappy --enable-libsrt --enable-libssh --enable-libsvtav1 --enable-libtesseract --enable-libtheora --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libxvid --enable-lzma --enable-libfontconfig --enable-libfreetype --enable-frei0r --enable-libass --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libspeex --enable-libsoxr --enable-libzmq --enable-libzimg --disable-libjack --disable-indev=jack --enable-videotoolbox --enable-audiotoolbox --enable-neon
2024/10/13 16:14:11 FFmpeg:    libavutil      59. 39.100 / 59. 39.100
2024/10/13 16:14:11 FFmpeg:    libavcodec     61. 19.100 / 61. 19.100
2024/10/13 16:14:11 FFmpeg:    libavformat    61.  7.100 / 61.  7.100
2024/10/13 16:14:11 FFmpeg:    libavdevice    61.  3.100 / 61.  3.100
2024/10/13 16:14:11 FFmpeg:    libavfilter    10.  4.100 / 10.  4.100
2024/10/13 16:14:11 FFmpeg:    libswscale      8.  3.100 /  8.  3.100
2024/10/13 16:14:11 FFmpeg:    libswresample   5.  3.100 /  5.  3.100
2024/10/13 16:14:11 FFmpeg:    libpostproc    58.  3.100 / 58.  3.100
2024/10/13 16:14:12 FFmpeg:  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'pipe:0':
2024/10/13 16:14:12 FFmpeg:    Metadata:
2024/10/13 16:14:12 FFmpeg:      major_brand     : mp42
2024/10/13 16:14:12 FFmpeg:      minor_version   : 0
2024/10/13 16:14:12 FFmpeg:      compatible_brands: isommp42
2024/10/13 16:14:12 FFmpeg:      encoder         : Google
2024/10/13 16:14:12 FFmpeg:    Duration: 00:04:56.10, start: 0.000000, bitrate: N/A
2024/10/13 16:14:12 FFmpeg:    Stream #0:0[0x1](und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv, bt709, progressive), 640x360 [SAR 1:1 DAR 16:9], 263 kb/s, 25 fps, 25 tbr, 12800 tbn (default)
2024/10/13 16:14:12 FFmpeg:        Metadata:
2024/10/13 16:14:12 FFmpeg:          handler_name    : ISO Media file produced by Google Inc.
2024/10/13 16:14:12 FFmpeg:          vendor_id       : [0][0][0][0]
2024/10/13 16:14:12 FFmpeg:    Stream #0:1[0x2](eng): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 95 kb/s (default)
2024/10/13 16:14:12 FFmpeg:        Metadata:
2024/10/13 16:14:12 FFmpeg:          handler_name    : ISO Media file produced by Google Inc.
2024/10/13 16:14:12 FFmpeg:          vendor_id       : [0][0][0][0]
2024/10/13 16:14:12 FFmpeg:  Stream mapping:
2024/10/13 16:14:12 FFmpeg:    Stream #0:1 -> #0:0 (aac (native) -> opus (libopus))
2024/10/13 16:14:12 FFmpeg:  [libopus @ 0x12de04930] No bit rate set. Defaulting to 96000 bps.
2024/10/13 16:14:12 FFmpeg:  Output #0, opus, to 'pipe:1':
2024/10/13 16:14:12 FFmpeg:    Metadata:
2024/10/13 16:14:12 FFmpeg:      major_brand     : mp42
2024/10/13 16:14:12 FFmpeg:      minor_version   : 0
2024/10/13 16:14:12 FFmpeg:      compatible_brands: isommp42
2024/10/13 16:14:12 FFmpeg:      encoder         : Lavf61.7.100
2024/10/13 16:14:12 FFmpeg:    Stream #0:0(eng): Audio: opus, 48000 Hz, stereo, flt, 96 kb/s (default)
2024/10/13 16:14:12 FFmpeg:        Metadata:
2024/10/13 16:14:12 FFmpeg:          handler_name    : ISO Media file produced by Google Inc.
2024/10/13 16:14:12 FFmpeg:          vendor_id       : [0][0][0][0]
2024/10/13 16:14:12 FFmpeg:          encoder         : Lavc61.19.100 libopus
2024/10/13 16:14:12 FFmpeg:          major_brand     : mp42
2024/10/13 16:14:12 FFmpeg:          minor_version   : 0
2024/10/13 16:14:12 FFmpeg:          compatible_brands: isommp42