Convert GSM to WV

Turn GSM recordings into WavPack. Stored as 16-bit WavPack, which keeps the decoded sound exactly but cannot bring back what the GSM lost.

Converted in an isolated sandbox on our serversDeleted after 24 hours

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

GSM and WV

From

GSM Audio

GSM 06.10 audio from telephony.

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

To

WavPack

WavPack lossless and hybrid audio.

Extensions: .wv
MIME type: audio/x-wavpack
Kind: Audio

Options for GSM to WV

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.