Convert Waveform Audio (.wav) to 3GPP Multimedia (.3gp) online for free. Fast, secure audio conversion with no watermarks or registration.
Upload your .wav 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 .3gp file when it's ready.
WAV (Waveform Audio File Format) is Microsoft and IBM's uncompressed PCM audio container, built on the RIFF (Resource Interchange File Format) structure. At the standard CD specification of 44.1 kHz sample rate and 16-bit depth, a stereo WAV file occupies roughly 10 MB per minute. 3GP is a stripped-down multimedia container designed by the 3rd Generation Partnership Project for mobile phones on 3G networks, typically wrapping AMR or low-bitrate AAC audio streams.
Converting WAV to 3GP compresses your raw PCM audio into a mobile-friendly format that older feature phones, MMS gateways, and telecom infrastructure expect. The dramatic size reduction — from ~10 MB/min down to under 200 KB/min with AMR-NB — makes this conversion essential when targeting constrained mobile environments.
Feature phones from Nokia, Samsung, and LG era shipped with native 3GP playback but often struggled with large WAV files due to storage limitations and the absence of a streaming PCM decoder. MMS message size caps (typically 300 KB to 1 MB) make WAV attachments impossible, while 3GP fits within those limits. Legacy telecom voicemail systems and IVR platforms frequently require 3GP or AMR input.
Beyond mobile compatibility, 3GP is useful for archiving short voice recordings at minimal storage cost. A one-minute voice memo that occupies 10 MB as WAV shrinks to 100-200 KB in 3GP with AMR-NB encoding, making it practical for mass storage of call recordings or field notes.
FFmpeg reads the RIFF/WAV header to identify the PCM format (sample rate, bit depth, channel count), then transcodes to AMR-NB (8 kHz mono, 4.75-12.2 kbps) or AMR-WB (16 kHz mono, 6.6-23.85 kbps) depending on the target quality setting. The encoded stream is muxed into a 3GP container conforming to the 3GPP TS 26.244 specification. If the target supports AAC-in-3GP, the encoder can use AAC-LC at higher bitrates for better quality. The WAV's PCM data is decoded in full before encoding, so the conversion is always a transcode — never a remux.
WAV-to-3GP is a lossy conversion with significant quality reduction when targeting AMR-NB (narrowband 300-3400 Hz, optimized for speech only). AMR-WB extends the range to 50-7000 Hz, making it acceptable for voice recordings but still inadequate for music. For the best quality within 3GP, use AAC-LC at 64-128 kbps if the target device supports it. Expect the output to sound noticeably compressed compared to the original WAV, especially on musical content.
| Device | WAV | 3GP |
|---|---|---|
| Windows PC | Native | Partial |
| macOS | Partial | Partial |
| iPhone/iPad | Partial | Partial |
| Android | Partial | Native |
| Linux | Partial | Partial |
| Web Browser | Native |
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
WAV to 3GP conversion bridges studio-quality PCM audio with legacy mobile infrastructure. Target AMR-WB or AAC-LC for the best balance of quality and file size when the receiving device supports them.
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| No |
| الميزة | WAV | 3GP |
|---|---|---|
| الاسم الكامل | Waveform Audio File Format | 3GPP Multimedia |
| الامتداد | .wav | .3gp |
| الأفضل لـ | Lossless quality | Mobile optimized |