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• Music discord.js bot : The "url" argument must be of type string

  4 juin 2020, par Nathan

  I am trying to make a working music Discord bot with discord.js and ffmpeg but I keep getting the error TypeError [ERR_INVALID_ARG_TYPE]: The "url" argument must be of type string. Received type undefined. The error occurs when I try the command play, after the bot joins the voice channel and send ퟎ

• heroku-22 stack discord.py bot doesn't play music

  30 août 2022, par bon ho

  I'm making music bot with discord.py and using heroku. bot is playing music my localhost but heroku host is not playing music.

  


  I found what cause a bug.
It working nicely in heroku-20, but not working in heroku-22 stack.

  


  How can I use heroku-22 stack without error ?
What can I do ?

  


  I'm sorry my english is bad.

  


  my code :

  


  import youtube_dl
import discord
from discord import app_commands,Interaction
import asyncio
import os

class MyClient(discord.Client):
  async def on_ready(self):
    await self.wait_until_ready()
    await tree.sync()
    print(f"login at {self.user}")
        
intents= discord.Intents.all()
client = MyClient(intents=intents)
tree = app_commands.CommandTree(client)

youtube_dl.utils.bug_reports_message = lambda: ''
ytdl_format_options = {
    'format': 'bestaudio/best',
    'outtmpl': '%(extractor)s-%(id)s-%(title)s.%(ext)s',
    'restrictfilenames': True,
    'noplaylist': True,
    'nocheckcertificate': True,
    'ignoreerrors': False,
    'logtostderr': False,
    'quiet': True,
    'no_warnings': True,
    'default_search': 'auto',
    'source_address': '0.0.0.0',  # bind to ipv4 since ipv6 addresses cause issues sometimes
}

ffmpeg_options = {
    'options': '-vn',
}
ytdl = youtube_dl.YoutubeDL(ytdl_format_options)
class YTDLSource(discord.PCMVolumeTransformer):
    def __init__(self, source, *, data, volume=0.5):
        super().__init__(source, volume)

        self.data = data

        self.title = data.get('title')
        self.url = data.get('url')

    @classmethod
    async def from_url(cls, url, *, loop=None, stream=True):
        loop = loop or asyncio.get_event_loop()
        data = await loop.run_in_executor(None, lambda: ytdl.extract_info(url, download=not stream))
        if 'entries' in data:
            # take first item from a playlist
            data=data['entries'][0]
        filename = data['url'] if stream else ytdl.prepare_filename(data)
        return cls(discord.FFmpegPCMAudio(filename, **ffmpeg_options), data=data)
queue={}
@tree.command(name="play", description="play music")
async def playmusic(interaction:Interaction,url_title:str,playfirst:bool=False):
  await interaction.response.send_message("I'm looking for music!!")
  guild=str(interaction.guild.id)
  try:
    queue[guild]
  except KeyError:
    queue[guild]=[]
  if interaction.user.voice is None:
    await interaction.edit_original_response(content="you must join any voice channel")
  else:
    voice_client: discord.VoiceClient = discord.utils.get(client.voice_clients, guild=interaction.guild)
    if voice_client == None:
      await interaction.user.voice.channel.connect()
      voice_client: discord.VoiceClient = discord.utils.get(client.voice_clients, guild=interaction.guild)
    player = await YTDLSource.from_url(url_title, loop=None)
    if playfirst and len(queue[guild])>1:
      queue[guild].insert(1,player)
    else:
      queue[guild].append(player)
    if not voice_client.is_playing():
      voice_client.play(player,after=None)
      await interaction.edit_original_response(content=f"{player.title} playing!!")
    else:
      await interaction.edit_original_response(content=f"{player.title} enqueued!")
    await asyncio.sleep(7)
    await interaction.delete_original_response()

client.run(token)


  


• Is there a built-in audio preprocessing within Android OS ?

  29 août 2022, par Larry lu

  I am running a dev team to build an Android application the major feature is to record a user's voice and merge it into a long movie. It's a dub film application.

  


  One struggle thing to my dev team is whether the Android OS pre-processes the recorded audio file. because we want the very original audio data from the built-in Microphone.
If there is a built-in pre-processing inside of Android OS that keeps updating some data of the recorded audio file, we want to know what is changed. We can't find any official post from Android speaking about it but would like to confirm from a professional.

  


  Many thanks