Convert MPEG Audio Layer 2 (.mp2) to 3GPP Multimedia (.3gp) online for free. Fast, secure audio conversion with no watermarks or registration.
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Choose your output settings. The default settings work great for most files.
Click Convert and download your .3gp file when it's ready.
MP2 (MPEG Audio Layer 2, also known as Musicam) is the broadcast audio standard used in DVB (Digital Video Broadcasting), DAB (Digital Audio Broadcasting), DVD-Video, and European television. Operating at typical bitrates of 192-384 kbps, MP2 provides robust audio quality with lower decoder complexity than MP3, making it the preferred codec for broadcast infrastructure since the 1990s.
Converting MP2 to 3GP re-encodes broadcast-quality audio into AMR-NB or low-bitrate AAC inside a 3GPP mobile container. This extreme conversion targets legacy mobile devices and telephony systems, moving audio from professional broadcast infrastructure to basic mobile delivery.
Some broadcast content needs redistribution on mobile platforms where feature phones are the primary devices. Converting MP2 broadcast audio to 3GP enables distribution through MMS, mobile web, and basic streaming to devices that do not support MP2 decoding.
Telephony-based information services (IVR, automated phone systems) may need content originally produced for broadcast. Converting MP2 radio segments to 3GP-compatible audio allows deployment on these telephony platforms.
FFmpeg decodes the MP2 bitstream (subband coding with 32 subbands, similar to MP1 but with additional psychoacoustic modeling) and re-encodes to AMR-NB (8 kHz mono, 4.75-12.2 kbps) or AAC-LC at low bitrate in a 3GP container. MP2 broadcast audio at 256 kbps stereo becomes approximately 12.2 kbps mono AMR-NB — a 20x bitrate reduction.
Quality loss is substantial. MP2 at 256 kbps provides FM-radio-quality stereo audio. AMR-NB at 12.2 kbps provides telephone-quality mono speech only. Music and complex audio are severely degraded. Using AAC at 64 kbps in 3GP preserves significantly more quality than AMR-NB, especially for music content from broadcast sources.
| Device | MP2 | 3GP |
|---|---|---|
| Windows PC | Partial | Partial |
| macOS | Partial | Partial |
| iPhone/iPad | Partial | Partial |
| Android | Partial | Native |
| 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
MP2 to 3GP bridges broadcast audio to mobile telephony. Use AAC in 3GP for any content beyond pure speech to preserve broadcast quality as much as possible.
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| No |
| Χαρακτηριστικό | MP2 | 3GP |
|---|---|---|
| Πλήρες όνομα | MPEG Audio Layer 2 | 3GPP Multimedia |
| Επέκταση | .mp2 | .3gp |
| Ιδανικό για | Broadcast standard | Mobile optimized |