Convert OPUS to SPX

Turn OPUS recordings into Speex. Re-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, which loses a little more than the Opus already did.

Converted in an isolated sandbox on our serversDeleted after 24 hours

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

OPUS and SPX

From

Opus Audio

Opus audio, the best lossy codec for speech and music at low bitrates.

Extensions: .opus
MIME type: audio/opus
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 OPUS 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.