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Supports: 3GP, 3G2
3GP is a 3GPP mobile-phone container that holds a video track plus a lossy audio track (usually AAC-LC or AMR). This tool extracts that audio track and re-encodes it to AIF — Apple's uncompressed AIFF (Audio Interchange File Format). The video is discarded; you get an audio-only file. Note that .aif and .aiff are the same format — .aif is just the shorter extension — so the output opens anywhere AIFF is supported.
One thing to understand up front: 3GP audio is already lossy, so wrapping it in uncompressed AIFF does not restore any quality. It re-encodes the existing samples into a much larger PCM file. If you want a small, portable result, convert 3GP to MP3 instead. Choose AIFF only when you specifically need an uncompressed PCM file for editing on macOS or in a DAW.
| Property | Value |
|---|---|
| Defined by | 3GPP (3rd Generation Partnership Project) |
| Based on | MPEG-4 Part 12 (ISO base media file format), MP4-like |
| Container holds | Video (H.263 / MPEG-4 / H.264) + audio |
| Typical audio codec | AAC-LC or AMR-NB/AMR-WB (all lossy) |
| Sibling format | .3g2 (CDMA2000 phones; also accepted here) |
| Best for | Recording and streaming on older mobile phones |
| Property | Value |
|---|---|
| Full name | Audio Interchange File Format |
| Developed by | Apple, 1988 (based on EA's IFF) |
| Compression | None — uncompressed PCM |
| Extensions | .aif and .aiff (identical format) |
| Compressed variant | AIFF-C / .aifc (separate format) |
| CD-quality spec | 16-bit, 44.1 kHz, stereo (~10 MB per minute) |
| Best for | Lossless editing on macOS, Logic, and other DAWs |
No. The audio inside a 3GP file is already lossy (AAC or AMR), so encoding it to uncompressed AIFF cannot recover detail that was discarded during the original recording. AIFF simply stores those same samples as raw PCM. You get a larger, edit-friendly file — not a higher-fidelity one.
AIFF is uncompressed PCM. A minute of 16-bit, 44.1 kHz stereo audio is roughly 10 MB, whereas the same minute inside a 3GP might be well under 1 MB because AAC and AMR compress heavily. The size jump is expected and reflects the format change, not added quality. If size matters, convert 3GP to MP3 or convert 3GP to WAV depending on your needs.
It is discarded. AIFF is an audio-only format, so the converter extracts the 3GP's audio track and ignores the video stream entirely. If you need the video, use a video-to-video conversion instead.
No — they are the same format. AIFF's official extensions are both .aif and .aiff, with no technical difference between them. The shorter .aif exists largely for legacy systems that limited extensions to three characters. The compressed .aifc (AIFF-C) is a separate, distinct format.
Leaving Sample Rate on "Original" keeps whatever the 3GP used. For a standard CD-quality file choose 44100 Hz; for closer-to-source audio, match the rate the original was recorded at. Up-sampling beyond the source rate does not add information — it only enlarges the file.
Yes. This tool accepts both .3gp and .3g2. 3G2 is the CDMA2000 sibling of 3GP and uses the same MPEG-4-based container, so its audio track extracts to AIFF identically. In our testing, a typical voice-memo 3G2 with an AMR track converts to a mono AIFF without any extra configuration.