PVF to SMP Converter

Turn PVF audio into Turtle Beach SampleVision format online

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PVF to SMP Bridge

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

Web Tool

No downloads or plugins required. Convert PVF to SMP directly in your web browser on any device.

Modern Format

SMP delivers excellent audio quality at efficient file sizes — a modern upgrade for your PVF recordings.

How to convert PVF to SMP

1

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

2

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

3

Let the file convert and you can download your smp 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
SMP is the native file format of SampleVision, a sample editing application developed by Turtle Beach Systems around 1990. SampleVision was among the first PC-based visual sample editors, letting musicians view waveforms on screen and perform cut, copy, paste, and loop-point editing — capabilities previously limited to expensive dedicated hardware samplers. The SMP format stores 16-bit mono PCM audio along with sampling-specific metadata: loop start and end points, sustain loops, release loops, and MIDI root note assignments. This made SMP files directly useful for creating and exchanging patches between hardware samplers via MIDI Sample Dump Standard (SDS) transfers, which SampleVision automated through its interface. A primary advantage was bridging the PC world with professional sampling hardware from Akai, E-mu, Ensoniq, and Roland — devices that had tiny screens and minimal editing tools. The format also supported common sample rates (22050, 44100 Hz) and brief text descriptions alongside audio data. Though Turtle Beach pivoted to gaming peripherals and SampleVision was discontinued, SMP files persist in vintage sample library archives and can be converted using SoX.
Initial release: 1990

Frequently Asked Questions

Why convert PVF to SMP?

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

What applications open SMP files?

SOX and SampleVision software can handle SMP files. Most are available as free downloads for major operating systems.

How is the SMP audio quality?

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

How fast is the conversion?

PVF files are typically compact. The conversion to SMP completes in just a few seconds on our cloud servers.

Are my files kept private?

Uploaded PVF files are deleted immediately after conversion. SMP results are automatically erased from our servers within 24 hours.