Convert AAC to MKA

Turn AAC recordings into MKA. The AAC 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 16-bit FLAC.

Converted in an isolated sandbox on our serversDeleted after 24 hours

Drop AAC files on the dialor turn it to pick what to do

AAC and MKA

From

AAC Audio

Raw AAC audio streams.

Extensions: .aac
MIME type: audio/aac
Kind: Audio

To

Matroska Audio

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

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

Options for AAC 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.