変換元フォーマット
MP4 is a widely supported media container, commonly carrying H.264 or H.265 video and AAC audio.
MP4
MP4 is a file format supported by Convertr for online file conversion workflows.
AIFF
AIFF is a file format supported by Convertr for online file conversion workflows.
What happens when MP4 becomes AIFF
ターゲットフォーマット
AIFF commonly stores uncompressed PCM audio and can be much larger than compressed audio.
どんな変化
The audio stream is decoded from the MP4 container and encoded as AIFF audio.
The video track, frames, subtitles, chapters, and visual metadata are not included in the audio output.
- 何が保持されるか
- Audio duration and channel layout are preserved when the source stream and target codec support them.
- What may be lost
- All visual content is intentionally discarded.
- Codec and quality implications
- Inspect the output before replacing the source, especially when the formats use different layout, codec, or editing models.
- Realistic limitations
- A MP4 file with no decodable audio stream cannot produce AIFF audio. Corrupt, encrypted, or unsupported codecs can also fail.
変換ステップ
- Upload a MP4 file no larger than 1 GB.
- Confirm that AIFF is selected as the target.
- Start the conversion. A healthy compatible worker begins processing immediately.
- Download the AIFF file and check the result before deleting your source.
トラブル解決
- The MP4 file is rejected or will not open.
- Confirm that the file is not empty, password-protected, or corrupt and that its real format matches the extension.
- The AIFF file is larger than expected.
- Choose a more efficient codec or lower quality setting when available. Lossless and uncompressed targets are often larger by design.
- The result has no sound or will not play.
- Try a broadly supported target codec and verify that the source contains a decodable audio stream.
プライバシーとファイル保管
Uploads and converted files are processed automatically and irreversibly deleted within 24 hours. You can delete them sooner with the delete control. Convertr does not read, mine, sell, or manually review file contents.
Read the privacy policy