Convert MKV to WMV: Free Online Converter
Convert Matroska Video to Windows Media Video online for free. Fast, secure video conversion with no watermarks or registration.
MKVに対応
アップロードすることで、これらのファイルの権利を有していること、および利用規約に同意することを確認したものとみなされます。
変換設定: ファイルを追加すると調整できます
安全な転送
HTTPS暗号化アップロード
プライバシー優先
ゲストのファイルは約2時間で自動削除
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
MKV から WMV への設定
- エンジン
- メディア
- 設定
- 調整できる設定: 22
- Trim Start
- Trim End
- Volume
- Audio Fade In
- Audio Fade Out
- Quality
- Resolution
- Frame Rate
- Resize Mode
- Audio Channels
- Crop X
- Crop Y
変換方法
アップロードエリアにドラッグするか、クリックして選択し、.mkvファイルをアップロードしてください。
必要に応じて出力設定を調整してください。デフォルト設定ではオリジナルの品質を維持します。
「変換」をクリックし、準備ができたら.wmvファイルをダウンロードしてください。
MKVからWMVへの変換について
WMV (Windows Media Video) is Microsoft's proprietary video format that has been a Windows staple since 1999. While largely replaced by H.264/MP4 for modern use, WMV remains necessary for legacy Windows environments including older PowerPoint presentations, Windows Media Center setups, and enterprise video distribution systems built on Microsoft technology.
MKVをWMVに変換する理由
Certain enterprise environments have standardized on WMV for their video workflows. Legacy SharePoint video libraries, Windows Media Services streaming servers, and corporate intranet portals built with older ASP.NET technology expect WMV files. Upgrading these systems may not be feasible due to budget, compliance, or vendor lock-in constraints, making WMV conversion a practical necessity.
Older versions of Microsoft PowerPoint (2007 and earlier) only embed WMV video reliably. Organizations maintaining legacy training materials, corporate presentations, and e-learning content in these PowerPoint versions need WMV files that play within the presentation without requiring external codecs. Additionally, Windows Movie Maker (the version bundled with Windows 7) exports WMV, and users sharing projects between Movie Maker and newer editing tools may need the MKV-to-WMV bridge.
主な活用例
- Embedding video in legacy PowerPoint presentations that only support WMV
- Uploading video to enterprise SharePoint 2010/2013 video libraries
- Feeding video to Windows Media Services streaming servers still in production
- Converting video for Windows Media Center DVR and media library systems
- Preparing content for corporate training portals built on legacy ASP.NET with WMV-only players
仕組み
FFmpeg transcodes MKV to WMV using the msmpeg4v3 or WMV2 codec (wmv2), or WMV3/VC-1 (wmv3) for better quality. The output is packaged in an ASF (Advanced Systems Format) container with a .wmv extension. Resolution is typically preserved from the source, with bitrates between 1-8 Mbps for standard definition and up to 20 Mbps for HD. Audio is encoded to WMA v2 at 128-192 kbps. VC-1 (WMV3/WMV9) provides the best quality among WMV codec variants.
品質とパフォーマンス
WMV using VC-1 at moderate bitrates (4-8 Mbps for 720p) produces acceptable visual quality comparable to early H.264 implementations. WMV2 at the same bitrate looks noticeably worse due to its older compression technology. For legacy system compatibility where WMV2 is required, expect visible blocking artifacts and less efficient compression compared to modern codecs.
デバイス互換性
| Device | MKV | WMV |
|---|---|---|
| Windows PC | Partial | Native |
| macOS | Partial | Partial |
| iPhone/iPad | Partial | Partial |
| Android | Partial | Partial |
| Linux | Partial | Partial |
| Web Browser | No | No |
プラットフォーム別の推奨設定
YouTube
Resolution: 1920x1080
Bitrate: 8-12 Mbps
H.264 recommended for fast processing
Resolution: 1080x1080
Bitrate: 3.5 Mbps
Square or 9:16 for Reels
TikTok
Resolution: 1080x1920
Bitrate: 4 Mbps
9:16 vertical, under 60s ideal
Twitter/X
Resolution: 1280x720
Bitrate: 5 Mbps
Under 140s, 512MB max
Resolution: 960x540
Bitrate: 2 Mbps
16MB limit for standard, 64MB for document
Discord
Resolution: 1280x720
Bitrate: 4 Mbps
8MB free, 50MB Nitro
最良の結果を得るためのヒント
- 1Use WMV3 (VC-1) for the best quality among WMV variants — specify '-c:v wmv3' in FFmpeg
- 2For PowerPoint embedding, test the WMV file in the actual PowerPoint version being used, as different versions have different codec requirements
- 3Keep bitrate at 4-6 Mbps for 720p content to balance quality and file size for enterprise intranet distribution
- 4Set audio to WMA v2 at 128 kbps for maximum compatibility with Windows Media Player and legacy systems
- 5If you must use WMV2 for compatibility, increase the bitrate by 50% compared to what you would use for VC-1 to compensate for lower compression efficiency
関連する変換
MKV to WMV conversion bridges the gap between modern video and legacy Microsoft infrastructure that has not migrated to MP4/H.264.
MKVとWMVの比較
| 特徴 | MKV | WMV |
|---|---|---|
| 正式名称 | Matroska Video | Windows Media Video |
| 拡張子 | .mkv | .wmv |