WMA to SNDT Converter

Generate MS-DOS SNDT audio files from WMA

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Vintage DOS Sound

SNDT is authentic DOS audio — convert from modern Windows WMA.

Online Processing

No vintage tools needed — convert WMA to SNDT in your browser.

Instant Results

SNDT files are tiny — conversion finishes almost immediately.

How to convert WMA to SNDT

1

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

2

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

3

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

About formats

WMA (Windows Media Audio) is a family of proprietary audio codecs developed by Microsoft and first released in 1999 as part of the Windows Media framework. Created to compete with MP3 and AAC, WMA Standard uses perceptual coding to deliver what Microsoft claimed was near-CD quality at bitrates as low as 64 kbps — roughly half the data rate MP3 typically needed for comparable results. The codec family grew to include WMA Professional for surround sound and high-resolution audio, WMA Lossless for bit-perfect archival compression, and WMA Voice optimized for spoken content at very low bitrates. Deep integration with Windows, Windows Media Player, and the Zune ecosystem gave WMA a strong distribution advantage throughout the 2000s, and digital rights management (DRM) support made it attractive to online music stores of that era. Encoding and decoding are handled natively by Windows, requiring no third-party software for playback on any Windows machine. Cross-platform support has improved through libraries like FFmpeg and GStreamer, though WMA remains less universally compatible than MP3 or AAC on non-Microsoft devices. The format still appears in legacy media libraries, though newer codecs have largely taken its place for streaming and portable use.
Initial release: 1999
SNDT is the audio format associated with Sndtool, an early MS-DOS sound utility from the early 1990s that appeared alongside the spread of Sound Blaster cards in PCs. Unlike the headerless Sounder format, SNDT files include a brief header with the sample rate and data length — a meaningful improvement that let playback software determine timing automatically. Audio data is stored as 8-bit unsigned PCM, typically at 8000 to 22050 Hz in mono. Sndtool functioned as a simple waveform recorder and player, often distributed as shareware or bundled with sound card drivers. A key advantage over competing DOS audio formats was this self-describing header, which eliminated the guesswork of playing unfamiliar files — a real problem before standardized multimedia frameworks existed. The format was also efficient to decode, requiring no decompression and minimal CPU overhead on the 286 and 386 processors of the time. SNDT files served as building blocks for early PC games and multimedia presentations, where developers needed reliable audio across the limited Sound Blaster hardware ecosystem. Today, SNDT survives in retro software archives and is supported by SoX for conversion to modern formats.
Developer: Sndtool (MS-DOS)
Initial release: 1992

Frequently Asked Questions

Why convert WMA to SNDT?

SNDT is a 1990s MS-DOS sound format required by certain vintage DOS applications. Since no DOS environment can decode WMA audio, converting to SNDT is necessary for compatibility.

What programs and environments can play SNDT files?

Vintage MS-DOS applications that expect SNDT handle it directly, while SoX reads it on modern systems and DOSBox plays it within emulated DOS environments seamlessly.

How is SNDT different from the SNDR format?

Both are early DOS sound formats, but SNDT and SNDR have distinct header structures. They target overlapping but not identical sets of vintage DOS audio software from that era.

What level of audio quality does SNDT support?

SNDT was designed for early DOS hardware — typically 8-bit resolution at constrained sample rates. It produces functional voice and effects audio rather than high-fidelity music.

Can I process several WMA files to SNDT in one batch?

Yes — upload all your WMA files at once and convertio.tools will create individual SNDT files for each, which is especially useful when preparing audio sets for retro computing projects.