PRC to AVR Converter

Turn PRC audio into Audio Visual Research format online

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Format Freedom

Transform PRC recordings into AVR — bringing vintage audio into a format with real-world usability.

Instant Access

Open your browser and convert — no software installation needed. Works on Chrome, Firefox, Safari, and Edge.

Quick Processing

PRC files are compact — the conversion to AVR completes in just a few seconds on our servers.

How to convert PRC to AVR

1

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

2

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

3

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

About formats

PRC is an audio file format associated with Psion handheld organizers, particularly the Series 3 and Series 5 lines from the 1990s. These pocket computers included built-in microphones and basic voice recording capabilities, storing captured audio in the PRC container. The encoding is typically ADPCM-based (Adaptive Differential Pulse-Code Modulation), balancing file size against audio intelligibility given the severe storage constraints of early PDAs — the original Psion Series 3 had just 256 KB of RAM doubling as storage. PRC audio is generally mono at low sample rates (often 8 kHz), optimized for speech rather than music. One advantage was tight integration with the EPOC operating system (later evolving into Symbian), letting users embed voice notes directly in agenda entries and database records. The compact file sizes — a minute of speech consumed only a few kilobytes — made it feasible to store dozens of memos on devices with minimal memory. While PRC audio is a legacy format today, conversion tools exist for extracting recordings from archived Psion devices, which remain collectible among retro computing enthusiasts.
Developer: Psion PLC
Initial release: 1993
AVR (Audio Visual Research) is an audio format that originated on the Apple Macintosh around 1989, created by the Audio Visual Research company for their editing and synthesis tools. It stores raw audio samples preceded by a fixed-length header containing sample rate, bit depth (8 or 16 bits), channel configuration, and loop point markers. Unlike complex container formats, AVR uses a flat binary structure with no compression, preserving the full waveform quality at the expense of larger files. The format served professional Macintosh audio workstations during the late 1980s and early 1990s, when the Mac platform dominated creative computing. One advantage is uncompressed storage guaranteeing zero artifacts and perfect signal integrity through editing operations. Native loop markers represent another feature, letting sound designers define seamless repetition points within the file — ahead of its time for sample-based music production. Tools like SoX maintain AVR support, ensuring archivists can access and convert these legacy recordings. While eclipsed by WAV and AIFF, AVR remains a notable piece of early digital audio history.
Initial release: 1989

Frequently Asked Questions

Why convert PRC to AVR?

PRC is locked to obsolete Psion PDAs. AVR makes your recordings accessible on modern devices and standard audio software.

What applications open AVR files?

SOX and Atari ST emulators can handle AVR files. Most are available as free downloads for major operating systems.

How is the AVR audio quality?

AVR provides good quality at standard settings. The output clarity depends on the original PRC recording quality.

How fast is the conversion?

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

Are my files kept private?

PRC uploads are removed right after processing. All AVR output files are cleaned from servers within 24 hours.