SLN to MAUD Converter

Convert Asterisk SLN recordings to Amiga MAUD audio format

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Retro Computing Ready

Bridge modern telephony and vintage computing — convert Asterisk SLN recordings into the Amiga MAUD format.

No Software Required

No Amiga tools needed on your machine. Run the SLN to MAUD conversion entirely in your web browser.

Private Processing

Your recordings remain confidential. SLN files are erased after conversion, MAUD outputs deleted within 24 hours.

How to convert SLN to MAUD

1

Select files from Computer, Google Drive, Dropbox, URL or by dragging it on the page.

2

Choose maud or any other format you need as a result (more than 200 formats supported)

3

Let the file convert and you can download your maud file right afterwards

About formats

SLN (Signed Linear) is a headerless raw audio format storing 16-bit signed linear PCM samples at 8000 Hz mono, most closely associated with Asterisk — the open-source PBX framework developed by Digium (now Sangoma Technologies). Within Asterisk, SLN serves as the native internal audio representation: every codec transcoding operation passes through signed linear as an intermediate step. This makes SLN the backbone of Asterisk's codec translation architecture. The format contains nothing but raw samples — no headers, no metadata, no framing — so parameters must be known in advance. While this lack of self-description might seem limiting, it is actually an advantage in telephony where sample format is fixed by convention and every overhead byte matters across thousands of simultaneous channels. The 8000 Hz rate aligns with the G.711 standard for traditional telephony, capturing the full 300-3400 Hz voice band. Asterisk also supports extended variants (sln16, sln32, sln48) for wideband audio. SLN files require no decoding — just direct memory mapping — making them ideal for real-time mixing, conferencing, and prompt playback in high-density VoIP environments.
Initial release: 1999
MAUD is an audio file format developed by MacroSystem for the Commodore Amiga platform, introduced in the early 1990s as part of their digital video and audio production tools. Built on the Amiga IFF (Interchange File Format) chunk architecture, MAUD files organize data into clearly delineated chunks — MHDR for the header, MDAT for sample data, and optional annotation chunks for metadata. The format supports mono and stereo layouts with bit depths of 8 or 16 bits and sample rates up to 48 kHz, which represented professional-grade specifications on Amiga hardware. Both signed linear PCM and A-law/mu-law encodings are available, offering a choice between fidelity and file size. MAUD saw primary use in the Amiga video production community, where MacroSystem Retina and VLab Motion boards demanded synchronized audio that the standard 8SVX format could not deliver. Conversion support exists today through SoX and libsndfile, ensuring vintage Amiga productions remain recoverable. Three distinct advantages stand out: clean IFF-based structure that any chunk-aware parser can navigate, 16-bit stereo capability ahead of typical Amiga audio, and lightweight overhead that left maximum CPU headroom for video rendering.
Initial release: 1992

Frequently Asked Questions

Why convert SLN to MAUD?

MAUD is an Amiga audio format. Converting SLN to MAUD is useful for retro computing projects or Amiga software that requires this container.

What software handles MAUD files?

Amiga audio tools, SoX, and some retro computing emulators can open and play MAUD files.

Is MAUD a common format?

No — MAUD is a niche legacy format from the Amiga platform. It is primarily used in retrocomputing and preservation projects.

Can I convert a batch of files?

Upload multiple SLN recordings at once and convert them all to MAUD in a single efficient batch.

How is data privacy handled?

Uploaded SLN files are deleted after conversion. MAUD outputs are automatically removed from servers within 24 hours.