Simple Discord music bot with voice recognition

Readme.md

Requirements

Python 3.5+, ffmpeg

• SpeechRecognition 3.8.1
• youtube-search 2.1.0
• youtube_dl 2021.6.6
• discord.py 1.7.3
• asyncio 3.4.3
• json

Commands

Default prefix is >

• listen - สั่งให้บอทรับคำสั่งเสียง
• stop - หยุดเพลงที่กำลังเล่นในปัจจุบัน

bot.py

from youtube_search import YoutubeSearch
import speech_recognition as sr
import json, discord, youtube_dl
from discord.ext import commands
from discord.utils import get
import asyncio

YTDL_OPTIONS = {
    'format':
    'bestaudio/best',
    'postprocessors': [{
        'key': 'FFmpegExtractAudio',
        'preferredcodec': 'mp3',
        'preferredquality': '192',
    }],
	'noplaylist': True,
	'nocheckcertificate': True,
}
FFMPEG_OPTIONS = {'before_options': '-reconnect 1 -reconnect_streamed 1 -reconnect_delay_max 5', 'options': '-vn'}

bot = commands.Bot(command_prefix='>')

@bot.event
async def on_ready():
    print(f"We have logged in as {bot.user}")
    await bot.change_presence(
        activity=discord.Activity(type=discord.ActivityType.listening,
                                  name=f"{bot.command_prefix}listen"))
    print(discord.__version__)


@bot.command()
async def listen(ctx):

	# is command author in voice channel
    if not ctx.message.author.voice:
        await ctx.send('เข้าห้องเสียงเพื่อเปิดเพลงครับ')
        return
	
	# get user voice channel id
    channel = ctx.message.author.voice.channel

    r = sr.Recognizer()
    with sr.Microphone() as source, youtube_dl.YoutubeDL(YTDL_OPTIONS) as ydl:
        print('Hearing the voice')
        await ctx.send("พูดชื่อเพลงที่อยากฟังเลยครับ!")
        r.adjust_for_ambient_noise(source, duration=0.2)
        try:
            audio = r.listen(source)
            text = r.recognize_google(audio, language='th')
            results = YoutubeSearch(text, max_results=1).to_json()

            # Save search results to json
            f = open("data.json", "w")
            f.write(results)
            f.close()

			# command is correct
            print('Got the voice command')
            await ctx.send("ได้รับคำสังแล้วครับ!")

            # Decode result to json format
            results = json.loads(results)
            final_result = "https://youtu.be" + results['videos'][0][
                'url_suffix']

		    # connect to voice channel
            voice_client = await channel.connect()

			# download youtube file
            file = ydl.extract_info(final_result, download=False)

			# Final: Play music on voice channel
            voice_client.play(discord.FFmpegPCMAudio(str(file['url']), **FFMPEG_OPTIONS))
            voice_client.source = discord.PCMVolumeTransformer(voice_client.source, 1)

            print('Music playing successfully')
            await ctx.send(f"ตอนนี้กำลังเล่นเพลง **{results['videos'][0]['title']}**")

            while voice_client.is_playing():
                await asyncio.sleep(1)
            else:
                await voice_client.disconnect()
                print("Disconnected")
        except Exception as e:
            print(e)
            print("Voice command cancelled or bot error")
            await ctx.send("ไม่ได้ยินเสียงเลยช่วยพูดใหม่ได้ไหมครับ")
@bot.command()
async def stop(ctx):
    voice = get(bot.voice_clients, guild=ctx.guild)

    if voice.is_playing():
        voice.stop()
        print("Music stop by user")
        await ctx.send('กำลังหยุดเพลง...')
		
# bot token
bot.run('Token')