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• как сделать 8 d музыку -> ffmpeg [closed]

  3 janvier 2023, par имя фамилия

  Всех приветствую, подскажите как через ffmpeg создать трек 8D
8D музыка это - метод постобработки аудиозаписи, когда диджеи берут уже существующий трек и микшируют его, создавая эффект движения звука вокруг слушателя.
По сути, 8D-аудио эмулирует звучание surround-формата Ambisonics. Последний подразумевает, что слушатель находится в центре «акустической сферы», по краям которой расставлены источники звука. (на одном форуме спросил что такое 8D)

  


  Писал на форуме, там не знаю решения, пробовал найти в открытых источниках, но видимо таким вопросом не задавались

  


• Using batch, how would you iterate through an array that you don't know how many values it may contain to run a function on each individual variable

  10 mai 2017, par Jay1995

  I have a batch file creating an array of variables it gets from a textfile, as follows :

  for /f "skip=1 tokens=9 delims= " %%a in (%findfile%) do set "_%%a=yes"
  
  set count = 0
  
  for /f "tokens=1* delims==#" %%b in ('set _') do (
  
      set /a count+=1
  
      set x=%%b
  
      set location[!count!]=!x:~1!
  
  )
  
  set %location%

  I’m trying to get each variable from the array to be looped into a function individually, but have no idea how to do it !!

  The location array storing all the variables has to be called into a for loop and the function I’m trying to get it to loop into is an FFMPEG function :

  for %%i in (%location%\*.mp4) do (if not exist "%%~ni\" MD "%%~ni"
  
  
  
      ffmpeg -i "%%i" -vframes 1 -f image2 -start_number 0 
  
      "%%~ni\%%~ni_Summary_%%3d.jpeg"
  
  
  
  )

  All HELP would be greatly appreciated

• What is the most efficient way to convert wav audio string to an ogg file without writing it to disk ?

  1er janvier 2023, par Saurabh Kumar Karn

  My final objective is to use TTS to get some Indic text converted into audio and pass that audio to a messaging system that accepts mp3 and ogg. Ogg is preferred.

  


  I am on Ubuntu and my flow for getting audio string is something like this.

  


  

  1. Text in Indic language is passed to an API

  


  2. API returns a json with a key value called audioContent. audioString = response.json()['audio'][0]['audioContent']

  


  3. The decoded string is arrived by using this decode_string = base64.b64decode(dat)

  


  


  I am currently converting it to mp3 and as you can see I am writing the wave file first and then converting it into an mp3.

  


  wav_file = open("output.wav", "wb")
decode_string = base64.b64decode(audioString)
wav_file.write(decode_string)

# Convert this to mp3 file
print('mp3file')
song = AudioSegment.from_wav("output.wav")
song.export("temp.mp3", format="mp3")


  


  Is there a way to convert audioString directly to ogg file without doing the io ?

  


  I've tried torchaudio and pyffmpeg to load audioString and do the conversion but it doesn't seem to be working.