Convert MPEG Audio Layer 1 (.mp1) to Audio Video Interleave (.avi) online for free. Fast, secure audio conversion with no watermarks or registration.
Upload your .mp1 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 .avi file when it's ready.
Converting MP1 to AVI embeds decoded MPEG Audio Layer 1 in a video container, creating a media file playable in video editors and media players. AVI (Audio Video Interleave) can hold audio-only content or pair audio with video streams. Since MP1 was the audio codec used in Video CD, this conversion can reconstitute the audio portion of VCD content in a more accessible container.
AVI's RIFF-based structure is legacy but universally supported. Embedding MP1-decoded audio in AVI allows integration with video editing workflows and broadcast systems that expect AVI input.
Video editors and broadcast systems that require AVI containers may need MP1 audio re-wrapped or re-encoded for import. If you are restoring VCD content and want the audio in a standard video container, AVI provides the most compatible legacy option.
Some hardware media players and set-top boxes accept only AVI files. Converting MP1 audio (with an optional static image) to AVI creates playable content for these devices.
FFmpeg decodes MP1 audio and re-encodes to MP3 or PCM inside an AVI container. AVI natively supports MP3 (MPEG Layer 3) and uncompressed PCM audio but not MP1 (Layer 1) directly. For audio-only AVI, only the audio stream is included. For video+audio, FFmpeg can generate a video stream from a static image using -loop 1 and interleave it with the decoded audio.
When re-encoding to MP3 at 192-320 kbps inside AVI, quality is very good — well within what the MP1 source can provide. With PCM encoding, the full decoded MP1 quality is preserved without any additional compression. For most uses, MP3 at 192 kbps in AVI provides excellent quality from MP1 sources.
| Device | MP1 | AVI |
|---|---|---|
| Windows PC | Partial | Native |
| macOS | Partial | Partial |
| iPhone/iPad | Partial | Partial |
| Android | Partial | Partial |
| Linux | Partial | Partial |
| Web Browser | No |
Resolution: N/A
Bitrate: 320 kbps
OGG Vorbis preferred
Resolution: N/A
Bitrate: 256 kbps
AAC format required
Resolution: N/A
Bitrate: 128 kbps
Lossless FLAC/WAV for best quality
Resolution: N/A
Bitrate: 128 kbps
MP3 mono for spoken word
MP1 to AVI wraps decoded legacy audio in a universal video container. Use PCM for maximum quality or MP3 for efficient compression within AVI.
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| No |
| Χαρακτηριστικό | MP1 | AVI |
|---|---|---|
| Πλήρες όνομα | MPEG Audio Layer 1 | Audio Video Interleave |
| Επέκταση | .mp1 | .avi |
| Ιδανικό για | Early MPEG standard | Windows native |