Convert 3GP to MKA

Turn 3GP videos into MKA. The audio is moved into Matroska as it is, so nothing is lost and a cut lands on the nearest frame; any other option re-encodes it as FLAC at the track's bit depth, 16 bits for lossy sound.

Converted in an isolated sandbox on our serversDeleted after 24 hours

Drop 3GP files on the dialor turn it to pick what to do

3GP and MKA

From

3GPP Video

3GPP video from older mobile phones.

Extensions: .3gp, .3g2
MIME type: video/3gpp
Kind: Video

To

Matroska Audio

Audio-only Matroska. Any codec, with chapters and tags.

Extensions: .mka
MIME type: audio/x-matroska
Kind: Audio

Options for 3GP to MKA

audio.channels: Number of audio channels. 1 is mono, 2 is stereo.
audio.denoise: Reduce steady background noise.
audio.normalize: Normalize loudness to -16 LUFS as streaming services do.
audio.sample_rate: Audio sample rate in Hz.
speed: Playback speed multiplier. 2 plays twice as fast.
trim_end: Second at which the audio or video stops.
trim_start: Seconds to cut from the start of audio or video.