「Ffmpeg」の版間の差分
Moutaku3dayo (トーク | 投稿記録) (ページの作成:「<pre> For FFmpeg with Constant Bitrate Encoding (CBR): ffmpeg -i video.mp4 -vn \ -acodec libmp3lame -ac 2 -ab 160k -ar 48000 \ audio.mp3 or if you want to use Variable Bitrate Encoding (VBR): ffmpeg -i video.mp4 -vn \ -acodec libmp3lame -ac 2 -qscale:a 4 -ar 48000 \ audio.mp3 The VBR example has a target bitrate of 165 Kbit/s with a bitrate range of 140...185. </pre>」) |
(相違点なし)
|
2025年6月7日 (土) 21:34時点における版
For FFmpeg with Constant Bitrate Encoding (CBR):
ffmpeg -i video.mp4 -vn \
-acodec libmp3lame -ac 2 -ab 160k -ar 48000 \
audio.mp3
or if you want to use Variable Bitrate Encoding (VBR):
ffmpeg -i video.mp4 -vn \
-acodec libmp3lame -ac 2 -qscale:a 4 -ar 48000 \
audio.mp3
The VBR example has a target bitrate of 165 Kbit/s with a bitrate range of 140...185.