Video Conversion
Convert CAVS to M4V Online — Free
Fast, free CAVS to M4V converter. No registration required.
またはインポート元
200万以上のファイル変換
数千人のユーザーに信頼されています
安全な転送
HTTPS暗号化アップロード
プライバシー優先
処理後にファイルを自動削除
登録不要
すぐに変換を開始
どこでも動作
あらゆるブラウザ、あらゆるデバイス
変換方法
1
Upload your .cavs file by dragging it into the upload area or clicking to browse.
2
Choose your output settings. The default settings work great for most files.
3
Click Convert and download your .m4v file when it's ready.
CAVSとは？
CAVS (AVS/AVS+/AVS2) is the Chinese national audio/video coding standard used in Chinese digital television broadcasting. It offers comparable quality to H.264 with different patent licensing.
形式の詳細
- 正式名称
- Chinese Audio Video Coding Standard
- 拡張子
- .cavs
主な特徴
- Chinese DTV standard
- AVS/AVS2 codec
- Broadcast quality
- National standard
M4Vとは？
M4V is a video container format developed by Apple, similar to MP4. It's commonly used for videos in the iTunes Store and may include DRM protection.
形式の詳細
- 正式名称
- iTunes Video
- 拡張子
- .m4v
主な特徴
- Apple ecosystem
- iTunes compatible
- High quality
- DRM support
CAVSとM4Vの比較
| 特徴 | CAVS | M4V |
|---|---|---|
| 正式名称 | Chinese Audio Video Coding Standard | iTunes Video |
| 拡張子 | .cavs | .m4v |
| 最適な用途 | Chinese DTV standard | Apple ecosystem |
よくある質問
Our converter preserves resolution, frame rate, and audio tracks by default. The M4V output uses optimized codec settings to maintain quality as close to the original CAVS as possible.
Free users can convert videos up to 100MB. Pro users can convert files up to 2GB with server-side processing — no software installation needed.
Most videos convert in under 60 seconds. Longer or higher-resolution files may take 1-3 minutes. Processing runs on our servers, so your device stays fast.
Yes. Our video converter is browser-based — works on iPhone, Android, tablet, and desktop. No app download required.
Yes. Audio is preserved by default during video conversion. You can also adjust audio codec, bitrate, and volume in the advanced settings.