PVF to MAUD Converter

Re-encode telephony PVF audio as MAUD online

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Cross-Format Audio

Transform PVF recordings into MAUD — bringing voice-optimized audio into a format with real-world usability.

No Install Needed

The converter runs in your browser. No desktop application or command-line tool needed for the conversion.

Secure Processing

Your PVF files are erased immediately after processing. MAUD results are cleaned from our servers within 24 hours.

How to convert PVF 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

PVF (Portable Voice Format) is a simple audio file format designed for voice message storage in Linux-based telephony systems, most notably ISDN4Linux and its vbox voicemail application. The format emerged from the European ISDN ecosystem of the late 1990s, when Linux servers increasingly handled PBX and answering machine duties over digital phone lines. PVF files store raw signed 16-bit PCM samples at 8000 Hz mono, preceded by a minimal plain-text header specifying data format and byte ordering. This deliberate simplicity is one of the format's primary strengths — with no compression and a human-readable header, PVF files are trivially easy to parse, pipe, and manipulate using standard Unix tools. The 8 kHz rate matches the Nyquist requirement for telephone-bandwidth speech (300-3400 Hz), making PVF a natural intermediate format for voice processing pipelines. Another advantage is cross-architecture portability: the explicit byte-order declaration means PVF files move between big-endian and little-endian systems without ambiguity. The SoX audio toolkit provides native PVF read/write support, enabling straightforward conversion to modern formats.
Developer: ISDN4Linux Project
Initial release: 1997
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 PVF to MAUD?

PVF is a niche telephony voice format. MAUD gives your voice recordings broader compatibility with standard players and tools.

What applications open MAUD files?

SOX and Amiga emulators can handle MAUD files. Most are available as free downloads for major operating systems.

How is the MAUD audio quality?

MAUD provides good quality at standard settings. The output clarity depends on the original PVF recording quality.

How fast is the conversion?

Both formats produce manageable file sizes. The PVF to MAUD conversion finishes almost instantly on our infrastructure.

Are my files kept private?

Your PVF files are erased after conversion completes. MAUD downloads are purged from our servers within 24 hours automatically.

Can I convert multiple PVF files?

Yes. Upload several PVF files and convert them all to MAUD in one session. Batch processing is supported.