多数视频平台——YouTube、Instagram、TikTok、Facebook——拒绝原始音频上传,但接受 MP4。将 Opus 转换为 MP4 给音轨一个视频包装器, 这样它就可以通过上传检查, 而声音和在 Opus 源中的声音保持完全一样 。
在 MP4 文件的屏幕上显示什么?
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By default a static frame: the Opus file's embedded cover art if present, otherwise a solid background. The frame is held for the full duration of the audio, so the MP4 file is a single still image with your Opus audio as the soundtrack — small and fast to encode.
Will the MP4 video lose any audio quality versus the Opus source?
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容器的音频编码器要求的 MP4 音频编码器之外, 不得再取样。 Opus 音频已被混入 MP4, 并且, 如果容器允许相同的编码器, 则复制比特比。 MP4 需要 AAC/ Opus 的, 我们将代码转换为192 kbps 或更高, 结果是透明的 。
Not in this one-step converter — it uses the embedded Opus cover art or a default background. To set a custom still or a looping clip behind the audio, convert Opus to MP4 here first, then use /video-editor/ to swap the visual track.
Yes — drop the full set of Opus files in and each becomes its own MP4 video in parallel. Premium runs more workers, so a 12-track album finishes far faster than converting each Opus one at a time.
在 MP4 转换期间, 我的 Opus 文件是否属于私有文件?
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Yes — uploaded Opus files are processed in isolated workers and deleted within minutes. We never listen to, retain, or share your audio. The full retention window is documented at /privacy/.