Convert CAF to SPX

Turn CAF recordings into Speex. Encoded as Speex speech coding in an Ogg file at 8, 16 or 32 kHz in mono or stereo, unless audio.sample_rate or audio.channels say otherwise, and a lossy track loses a little more than it already had.

Converted in an isolated sandbox on our serversDeleted after 24 hours

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

CAF and SPX

From

Core Audio Format

Apple Core Audio Format.

Extensions: .caf
MIME type: audio/x-caf
Kind: Audio

To

Speex

Speex speech audio in an Ogg container, the predecessor of Opus.

Extensions: .spx
MIME type: audio/x-speex
Kind: Audio

Options for CAF to SPX

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.