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"nbformat": 4,
"nbformat_minor": 0,
"metadata": {
"colab": {
"provenance": []
},
"kernelspec": {
"name": "python3",
"display_name": "Python 3"
},
"language_info": {
"name": "python"
}
},
"cells": [
{
"cell_type": "code",
"source": [
"!pip install yt-dlp pydub ffmpeg-python\n",
"!apt-get install ffmpeg -y # For Colab, to make pydub work"
],
"metadata": {
"colab": {
"base_uri": "https://localhost:8080/"
},
"id": "QURofI_GiSTK",
"outputId": "7c46dcd6-d49c-4172-bf27-d9d408352cdf"
},
"execution_count": null,
"outputs": [
{
"output_type": "stream",
"name": "stdout",
"text": [
"Collecting yt-dlp\n",
" Downloading yt_dlp-2025.12.8-py3-none-any.whl.metadata (180 kB)\n",
"\u001b[?25l \u001b[90m━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━\u001b[0m \u001b[32m0.0/180.3 kB\u001b[0m \u001b[31m?\u001b[0m eta \u001b[36m-:--:--\u001b[0m\r\u001b[2K \u001b[90m━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━\u001b[0m \u001b[32m180.3/180.3 kB\u001b[0m \u001b[31m6.0 MB/s\u001b[0m eta \u001b[36m0:00:00\u001b[0m\n",
"\u001b[?25hRequirement already satisfied: pydub in /usr/local/lib/python3.12/dist-packages (0.25.1)\n",
"Collecting ffmpeg-python\n",
" Downloading ffmpeg_python-0.2.0-py3-none-any.whl.metadata (1.7 kB)\n",
"Requirement already satisfied: future in /usr/local/lib/python3.12/dist-packages (from ffmpeg-python) (1.0.0)\n",
"Downloading yt_dlp-2025.12.8-py3-none-any.whl (3.3 MB)\n",
"\u001b[2K \u001b[90m━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━\u001b[0m \u001b[32m3.3/3.3 MB\u001b[0m \u001b[31m55.1 MB/s\u001b[0m eta \u001b[36m0:00:00\u001b[0m\n",
"\u001b[?25hDownloading ffmpeg_python-0.2.0-py3-none-any.whl (25 kB)\n",
"Installing collected packages: yt-dlp, ffmpeg-python\n",
"Successfully installed ffmpeg-python-0.2.0 yt-dlp-2025.12.8\n",
"Reading package lists... Done\n",
"Building dependency tree... Done\n",
"Reading state information... Done\n",
"ffmpeg is already the newest version (7:4.4.2-0ubuntu0.22.04.1).\n",
"0 upgraded, 0 newly installed, 0 to remove and 2 not upgraded.\n"
]
}
]
},
{
"cell_type": "code",
"source": [
"import os\n",
"from pydub import AudioSegment\n",
"import yt_dlp\n",
"\n",
"# -------------------------------\n",
"# 1️⃣ YouTube video URL\n",
"# -------------------------------\n",
"url = \"https://youtu.be/uvOF0qn_r_0?si=-Zd4-p22-bjgEAWT\" # Replace VIDEO_ID with your YouTube link\n",
"\n",
"# -------------------------------\n",
"# 2️⃣ Download audio using yt-dlp\n",
"# -------------------------------\n",
"ydl_opts = {\n",
" 'format': 'bestaudio/best',\n",
" 'outtmpl': 'video_audio.%(ext)s',\n",
" 'postprocessors': [{\n",
" 'key': 'FFmpegExtractAudio',\n",
" 'preferredcodec': 'mp3', # download as mp3 first\n",
" 'preferredquality': '192',\n",
" }],\n",
"}\n",
"\n",
"print(\"Downloading audio from YouTube...\")\n",
"with yt_dlp.YoutubeDL(ydl_opts) as ydl:\n",
" ydl.download([url])\n",
"\n",
"# Find downloaded file\n",
"for file in os.listdir():\n",
" if file.startswith(\"video_audio\") and file.endswith(\".mp3\"):\n",
" audio_file = file\n",
" break\n",
"\n",
"print(\"Downloaded:\", audio_file)\n",
"\n",
"# -------------------------------\n",
"# 3️⃣ Convert audio to WAV (16kHz, mono)\n",
"# -------------------------------\n",
"audio = AudioSegment.from_file(audio_file)\n",
"audio = audio.set_channels(1) # mono\n",
"audio = audio.set_frame_rate(16000) # 16 kHz\n",
"wav_filename = \"znmd.wav\"\n",
"audio.export(wav_filename, format=\"wav\")\n",
"print(\"Converted to WAV:\", wav_filename)\n",
"\n",
"# -------------------------------\n",
"# 4️⃣ Split WAV into 1-minute chunks\n",
"# -------------------------------\n",
"chunk_length_ms = 60 * 1000 # 1 minute\n",
"for i, start in enumerate(range(0, len(audio), chunk_length_ms)):\n",
" chunk = audio[start:start+chunk_length_ms]\n",
" chunk_filename = f\"ZNMD_chunk_{i}.wav\"\n",
" chunk.export(chunk_filename, format=\"wav\")\n",
" print(\"Saved chunk:\", chunk_filename)\n",
"\n",
"print(\"All steps completed! Your audio is ready for diarization.\")\n"
],
"metadata": {
"id": "oPEdKqgLLUEw",
"colab": {
"base_uri": "https://localhost:8080/"
},
"outputId": "0c940970-dd15-40f4-9bfb-9fb18120d879"
},
"execution_count": null,
"outputs": [
{
"output_type": "stream",
"name": "stdout",
"text": [
"Downloading audio from YouTube...\n",
"[youtube] Extracting URL: https://youtu.be/uvOF0qn_r_0?si=-Zd4-p22-bjgEAWT\n",
"[youtube] uvOF0qn_r_0: Downloading webpage\n"
]
},
{
"output_type": "stream",
"name": "stderr",
"text": [
"WARNING: [youtube] No supported JavaScript runtime could be found. Only deno is enabled by default; to use another runtime add --js-runtimes RUNTIME[:PATH] to your command/config. YouTube extraction without a JS runtime has been deprecated, and some formats may be missing. See https://github.com/yt-dlp/yt-dlp/wiki/EJS for details on installing one\n"
]
},
{
"output_type": "stream",
"name": "stdout",
"text": [
"[youtube] uvOF0qn_r_0: Downloading android sdkless player API JSON\n",
"[youtube] uvOF0qn_r_0: Downloading web safari player API JSON\n"
]
},
{
"output_type": "stream",
"name": "stderr",
"text": [
"WARNING: [youtube] uvOF0qn_r_0: Some web_safari client https formats have been skipped as they are missing a url. YouTube is forcing SABR streaming for this client. See https://github.com/yt-dlp/yt-dlp/issues/12482 for more details\n"
]
},
{
"output_type": "stream",
"name": "stdout",
"text": [
"[youtube] uvOF0qn_r_0: Downloading m3u8 information\n"
]
},
{
"output_type": "stream",
"name": "stderr",
"text": [
"WARNING: [youtube] uvOF0qn_r_0: Some web client https formats have been skipped as they are missing a url. YouTube is forcing SABR streaming for this client. See https://github.com/yt-dlp/yt-dlp/issues/12482 for more details\n"
]
},
{
"output_type": "stream",
"name": "stdout",
"text": [
"[info] uvOF0qn_r_0: Downloading 1 format(s): 251\n",
"[download] Destination: video_audio.webm\n",
"[download] 100% of 3.73MiB in 00:00:00 at 13.24MiB/s \n",
"[ExtractAudio] Destination: video_audio.mp3\n",
"Deleting original file video_audio.webm (pass -k to keep)\n",
"Downloaded: video_audio.mp3\n",
"Converted to WAV: znmd.wav\n",
"Saved chunk: ZNMD_chunk_0.wav\n",
"Saved chunk: ZNMD_chunk_1.wav\n",
"Saved chunk: ZNMD_chunk_2.wav\n",
"Saved chunk: ZNMD_chunk_3.wav\n",
"Saved chunk: ZNMD_chunk_4.wav\n",
"Saved chunk: ZNMD_chunk_5.wav\n",
"All steps completed! Your audio is ready for diarization.\n"
]
}
]
},
{
"cell_type": "code",
"source": [],
"metadata": {
"id": "UXUHD4sTIjhe"
},
"execution_count": null,
"outputs": []
}
]
} |