By default a static frame: the MP3 file's embedded cover art if present, otherwise a solid background. The frame is held for the full duration of the audio, so the MOV file is a single still image with your MP3 audio as the soundtrack — small and fast to encode.
Will the MOV video lose any audio quality versus the MP3 source?
Not in this one-step converter — it uses the embedded MP3 cover art or a default background. To set a custom still or a looping clip behind the audio, convert MP3 to MOV here first, then use /video-editor/ to swap the visual track.
Yes — drop the full set of MP3 files in and each becomes its own MOV video in parallel. Premium runs more workers, so a 12-track album finishes far faster than converting each MP3 one at a time.
转换 MOV 期间 我的 MP3 文件是否私有?
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Yes — uploaded MP3 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/.
