Python/Python_Convert_audiofile_from_wav_to_mp3.ipynb

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   "source": [
    "# Python - Convert audiofile from wav to mp3\n",
    "<a href=\"https://bit.ly/3JyWIk6\">Give Feedback</a> | <a href=\"https://github.com/jupyter-naas/awesome-notebooks/issues/new?assignees=&labels=bug&template=bug_report.md&title=Python+-+Convert+audiofile+from+wav+to+mp3:+Error+short+description\">Bug report</a>"
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   "source": [
    "**Tags:** #python #audio #wavtomp3 #pydub"
   ]
  },
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   "source": [
    "**Author:** [Mohit Singh](), [Akshat Katiyar]()"
   ]
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   "source": [
    "**Last update:** 2023-10-21 (Created: 2023-03-08)"
   ]
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   "source": [
    "**Description:** This notebook uses the Pydub library to convert audio file from wav to mp3."
   ]
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   "source": [
    "## Input"
   ]
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   "source": [
    "### Download ffmpeg"
   ]
  },
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   "source": [
    "!wget \"https://johnvansickle.com/ffmpeg/builds/ffmpeg-git-amd64-static.tar.xz\"\n",
    "!tar xf ffmpeg-git-amd64-static.tar.xz"
   ]
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   "source": [
    "### Find the ffmpeg package binary filename"
   ]
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   "source": [
    "import os\n",
    "\n",
    "def find_directory_starting_with_ffmpeg_git():\n",
    "    # Get the current directory\n",
    "    current_directory = os.getcwd()\n",
    "\n",
    "    # List all directories in the current directory\n",
    "    directories = [d for d in os.listdir(current_directory) if os.path.isdir(os.path.join(current_directory, d))]\n",
    "\n",
    "    # Check for directories starting with \"ffmpeg-git\"\n",
    "    matching_directories = [d for d in directories if d.startswith(\"ffmpeg-git\")]\n",
    "    return matching_directories\n",
    "\n",
    "dir_path = find_directory_starting_with_ffmpeg_git()\n",
    "package_name = None\n",
    "if len(dir_path) > 1:\n",
    "    print(\"Multiple ffmpeg directory found using the first one\")\n",
    "package_name = dir_path[0]\n",
    "mv_package = f\"mv {package_name} ffmpeg\"\n",
    "!rm -rf ffmpeg\n",
    "!{mv_package}"
   ]
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   "source": [
    "### Import libraries"
   ]
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   "source": [
    "try:\n",
    "    from pydub import AudioSegment\n",
    "except Exception:\n",
    "    !pip install pydub\n",
    "    from pydub import AudioSegment\n",
    "import requests"
   ]
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   "source": [
    "### Setup variables\n",
    "**Mandatory**\n",
    "- `audio_file_url`: Link of audio file in wav to be converted to mp3.\n",
    "\n",
    "**Optional**\n",
    "- `wav_path`: File path to be saved in wav in local.\n",
    "- `mp3_path`: File path to be saved in mp3 in local."
   ]
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   "source": [
    "# Mandatory\n",
    "audio_file_url = 'https://www2.cs.uic.edu/~i101/SoundFiles/BabyElephantWalk60.wav'\n",
    "\n",
    "# Optional\n",
    "wav_path = 'audio.wav'\n",
    "mp3_path = 'audio.mp3'"
   ]
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   "source": [
    "## Model"
   ]
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   "source": [
    "### Append ffmpeg package to PATH environment variable"
   ]
  },
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   "source": [
    "new_path = os.path.join(os.getcwd(), \"ffmpeg\")\n",
    "os.environ['PATH'] += os.pathsep + new_path"
   ]
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   "source": [
    "### Get and save audio file from URL"
   ]
  },
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   "source": [
    "response = requests.get(audio_file_url)\n",
    "open(\"audio.wav\", \"wb\").write(response.content)"
   ]
  },
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   "source": [
    "### Convert wav to mp3\n",
    "This code will convert the audio file from wav to mp3."
   ]
  },
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   "source": [
    "# read the WAV file using pydub\n",
    "wav_audio = AudioSegment.from_file(\"audio.wav\", format=\"wav\")\n",
    "\n",
    "# export the audio as MP3 using pydub\n",
    "wav_audio.export(mp3_path, format=\"mp3\")"
   ]
  },
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   "source": [
    "## Output"
   ]
  },
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   "source": [
    "### Display result\n",
    "This code will check if audio file is successfully converted to mp3."
   ]
  },
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   "outputs": [],
   "source": [
    "if (os.path.isfile(mp3_path)):\n",
    "    print('Conversion of audio file from wav to mp3 is successful')"
   ]
  }
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