Convert FLV to WMA: Free Online Converter
Convert Flash Video to Windows Media Audio online for free. Fast, secure video conversion with no watermarks or registration.
FLV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
FLV から WMA への設定
- エンジン
- メディア
- 設定
- 調整できる設定: 11
- Trim Start
- Trim End
- Volume
- Fade In
- Fade Out
- Bitrate
- Sample Rate
- Channels
- Audio Channels
- Reverse Audio
- Strip Metadata
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、.flv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.wmaファイルをダウンロードしてください。
FLVからWMAへの変換について
FLV (Flash Video) typically carries MP3 or AAC audio within Adobe's container. WMA (Windows Media Audio) is Microsoft's proprietary audio codec family, first released in 1999 as part of the Windows Media framework. WMA Standard uses perceptual coding at 32-192 kbps, while WMA Professional supports up to 768 kbps with surround sound. WMA files integrate natively with Windows Media Player, Windows Explorer, and Xbox consoles. Converting FLV to WMA extracts audio in Microsoft's native format.
FLVをWMAに変換する理由
WMA is deeply integrated into the Windows ecosystem — Windows Media Player, Groove Music, Windows Explorer preview, and Xbox all handle WMA natively. For Windows-centric workflows, WMA files provide seamless integration including album art display, metadata, and DRM support. WMA at 128 kbps delivers quality competitive with MP3 at 160 kbps, offering a slight efficiency advantage.
主な活用例
- Extracting audio from FLV files for playback in Windows Media Player and Windows media libraries
- Creating WMA audio files from FLV sources for use on Xbox consoles as background music
- Preparing FLV audio content for Windows Phone or Windows CE-based devices that prefer WMA
- Building audio playlists in Windows Media Player from extracted FLV audio tracks
- Archiving FLV audio in WMA format for integration with Windows-based media automation systems
仕組み
FFmpeg decodes the FLV audio stream and re-encodes using the wmav2 encoder (WMA version 2) at specified bitrate. WMA uses MDCT-based perceptual coding with Bark-scale frequency band allocation. Output supports sample rates up to 48 kHz stereo. The resulting .wma file uses the ASF (Advanced Streaming Format) container with Windows Media Audio codec identifier. WMA Professional (wmapro) is available for higher quality at 256+ kbps.
品質とパフォーマンス
WMA Standard at 128 kbps is comparable to MP3 at 160 kbps — slightly more efficient at low bitrates. At 192 kbps, WMA is perceptually transparent for most content. WMA Professional at 256 kbps provides quality rivaling lossless for most listeners. Transcoding from FLV's compressed audio introduces a small generation loss, so using a higher output bitrate (192+ kbps) is recommended.
デバイス互換性
| Device | FLV | WMA |
|---|---|---|
| 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 WMA at 192 kbps for transparent quality that sounds indistinguishable from the source in most listening conditions
- 2Choose WMA Professional codec if you need surround sound or bitrates above 192 kbps
- 3For maximum compatibility, stick with WMA version 2 (wmav2) — it is supported by the widest range of devices
- 4Add Windows Media metadata (title, artist, album art) after conversion using Windows Media Player or Mp3tag
- 5Consider MP3 instead of WMA if you need to play the files on Apple devices or non-Windows systems
関連する変換
FLV to WMA conversion produces Windows-native audio that integrates seamlessly with Microsoft's media ecosystem. For users committed to Windows Media Player, Xbox, and Windows-based audio workflows, WMA provides a well-supported, efficient audio format.
FLVとWMAの比較
| 特徴 | FLV | WMA |
|---|---|---|
| 正式名称 | Flash Video | Windows Media Audio |
| 拡張子 | .flv | .wma |