MOV to SLN Converter
Extract Asterisk raw signed linear audio from MOV online
Asterisk Native
SLN is what Asterisk PBX uses internally for audio. Extract audio from MOV and create voice prompts, greetings, and IVR audio for your phone system.
Rate Selection
Choose the sample rate your PBX requires — 8 kHz for narrowband, 16 kHz for wideband. Produce SLN files that integrate with your telephony setup.
No CLI Required
Skip the SoX command line. Convert MOV to SLN directly in your browser and download audio ready for Asterisk without any terminal work.
How to convert MOV to SLN
Select files from Computer, Google Drive, Dropbox, URL or by dragging it on the page.
Choose sln or any other format you need as a result (more than 200 formats supported)
Let the file convert and you can download your sln file right afterwards
About formats
Frequently Asked Questions
SLN is the native audio format for Asterisk PBX — raw signed linear PCM. Convert MOV audio for direct use as IVR prompts, greetings, and hold music.
Asterisk PBX, FreeSWITCH, and related VoIP platforms use SLN for internal audio processing. SoX can also read and manipulate raw SLN audio data.
No — SLN is headerless raw PCM data. Asterisk determines the sample rate from the file extension (sln for 8 kHz, sln16 for 16 kHz, etc.).
Standard Asterisk uses 8 kHz for traditional telephony. Wideband setups use 16 kHz for improved voice clarity in VoIP environments.
At 8 kHz, SLN sounds telephony-grade — fine for hold music but noticeably limited. At higher sample rates, quality improves but remains below CD standard.