Convert WebM to WMA — Free Online Converter
Convert WebM Video (.webm) to Windows Media Audio (.wma) online for free. Fast, secure video conversion with no watermarks or registration.
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安全传输
HTTPS 加密上传
隐私优先
文件处理后自动删除
无需注册
即刻开始转换
随处可用
任何浏览器，任何设备
如何转换
Upload your .webm file by dragging it into the upload area or clicking to browse.
Choose your output settings. The default settings work great for most files.
Click Convert and download your .wma file when it's ready.
关于WebM转WMA
WebM contains Opus or Vorbis audio — open-source codecs. WMA (Windows Media Audio) is Microsoft's proprietary audio format from 1999, standard in the Windows ecosystem. Converting WebM audio to WMA targets legacy Windows devices, media servers, and applications that require Microsoft's audio format.
为什么要将WebM转换为WMA？
Legacy Windows Media Center installations, Zune players, older car stereos, and enterprise media servers may require WMA. Converting WebM audio to WMA bridges the gap between web-standard open-source audio and the legacy Microsoft ecosystem.
This conversion is increasingly rare as WMA has been largely replaced by AAC and MP3 even within the Windows ecosystem.
常见使用场景
- Extracting audio from WebM for playback on Windows Media Center systems
- Creating WMA from WebM sources for legacy car stereos supporting WMA but not Opus
- Preparing web audio for enterprise WMA-based media servers
- Converting WebM audio for Zune and Windows Phone legacy devices
- Producing WMA from WebM for Windows Embedded kiosk systems
工作原理
FFmpeg extracts and decodes Opus/Vorbis from the WebM container, then encodes to WMA using the wmav2 encoder. Output bitrates range from 64-320 kbps. The ASF container with .wma extension wraps the audio. WMA Pro encoding is available for higher efficiency.
质量与性能
WMA v2 at 192 kbps is comparable to Vorbis at similar bitrates. The Opus/Vorbis-to-WMA transcoding introduces a generation loss; using 20-30% higher WMA bitrate compensates. WMA Pro at 128 kbps approaches AAC quality.
设备兼容性
| Device | WebM | WMA |
|---|---|---|
| Windows PC | Partial | Native |
| macOS | Partial | Partial |
| iPhone/iPad | Partial | Partial |
| Android | Native | Partial |
| Linux | Partial | Partial |
| Web Browser | Native | No |
各平台推荐设置
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
获得最佳效果的技巧
- 1Use 192 kbps WMA v2 for the broadest legacy device compatibility
- 2Consider MP3 instead unless the target specifically requires WMA
- 3Use a 20-30% higher bitrate than the source to minimize generation loss
- 4WMA Pro offers better quality at lower bitrates if supported by the target device
- 5Test on the target system before batch converting
相关转换
WebM to WMA serves legacy Windows ecosystem needs, extracting audio from web sources into Microsoft's native format.
WebM 与 WMA 对比
| 特性 | WebM | WMA |
|---|---|---|
| 全称 | WebM Video | Windows Media Audio |
| 扩展名 | .webm | .wma |
| 最适合 | Web optimized | Windows native |