SLN to TXW Converter

Move Asterisk SLN audio into Yamaha TX16W sampler format

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Vintage Synth Ready

Convert Asterisk SLN audio into TXW samples for the Yamaha TX-16W — bridging telephony and vintage synthesis.

Cloud Conversion

No vintage hardware needed for the conversion. Our servers handle the SLN to TXW transformation entirely.

Private Processing

Telephony recordings are handled securely. All files deleted automatically after processing.

How to convert SLN to TXW

1

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

2

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

3

Let the file convert and you can download your txw 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
TXW is the native audio sample format of the Yamaha TX16W, a rack-mounted digital sampler released by Yamaha in 1988. Each TXW file stores a single audio sample captured by the TX16W's 12-bit analog-to-digital converters, with selectable sampling rates of 16.7 kHz, 33.3 kHz, and 50 kHz in mono. The format was engineered to work within the sampler's architecture — 1.5 MB of onboard RAM expandable via memory cards — so files are compact and structured for quick loading from 3.5-inch floppy disks. Despite its 12-bit resolution, the TX16W earned a loyal following among electronic musicians who prized its distinctive warm, slightly gritty character that imparted a recognizable sonic texture to sampled material. The format preserves loop point data and tuning metadata, enabling seamless playback of sustain loops within the hardware. While TXW files are not directly playable in most modern software, conversion utilities and the SoX audio toolkit can transform them into contemporary formats like WAV or AIFF. For vintage synth enthusiasts and sample library curators, TXW remains an important archival format.
Developer: Yamaha Corporation
Initial release: 1988

Frequently Asked Questions

Why convert SLN to TXW?

TXW is the native sample format for the Yamaha TX-16W synthesizer. Converting SLN to TXW prepares audio for use with this vintage sampler.

What uses TXW files?

The Yamaha TX-16W sampler, SoX, and vintage synth emulators can load and use TXW format samples.

Is TXW still used today?

TXW is a vintage format used primarily by musicians and collectors working with the Yamaha TX-16W synthesizer.

Can I convert multiple files?

Upload a batch of SLN recordings and convert them all to TXW in one session — ideal for preparing sample libraries.

Is my data safe?

SLN uploads are erased after conversion, and TXW outputs are removed from our servers within 24 hours.