CAVS to PRC Converter

Rip audio from CAVS and export as PRC online for free

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Audio Extraction

The converter pulls the audio track from CAVS and delivers a clean PRC file — stripping away the video data you do not need.

Quick Processing

Cloud-based servers handle the conversion efficiently. Most files are processed and ready for download within moments.

Private and Secure

Uploaded files are deleted right after processing, and converted results are removed within 24 hours. Your content stays protected.

How to convert CAVS to PRC

1

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

2

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

3

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

About formats

CAVS (Chinese Audio Video Standard) is a video compression standard developed by the Audio Video Coding Standard Workgroup of China and adopted as a national standard (GB/T 20090.2) in February 2006. The project began in 2002 with the aim of creating an independent compression technology that could serve the massive broadcasting and multimedia infrastructure in China without relying on foreign-licensed codecs. CAVS, also referred to as AVS1, achieves compression efficiency comparable to H.264/AVC while utilizing a simpler patent framework with significantly lower licensing costs. The standard supports video resolutions from standard definition up to high definition, making it suitable for both terrestrial digital television broadcasting and broadband streaming. Key technical features include 8x8 block transforms, multiple prediction modes, and a loop filter designed to reduce blocking artifacts at low bit rates. The Chinese government endorsed CAVS as the mandatory compression standard for the national digital TV broadcasting system, ensuring broad deployment across set-top boxes and television receivers in the country. While CAVS has limited international adoption compared to H.264 or HEVC, its significance lies in serving one of the largest media markets in the world and demonstrating a viable national alternative to globally dominant video coding standards.
Initial release: February 2006
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

Frequently Asked Questions

Why convert CAVS to PRC?

If you only need the audio from a CAVS recording, converting to PRC strips the video and produces a lightweight audio file.

How can I play PRC files?

Specialized audio processing applications and converters support PRC encoded audio files.

Do I need to install anything?

Not at all. The converter runs in your web browser — no downloads, plugins, or desktop applications are required for the conversion.

Does it work on phones and tablets?

Yes. The converter runs in any modern mobile browser on iOS and Android devices, with the same functionality as desktop.

What happens to my uploaded files?

Uploaded CAVS files are deleted from our servers immediately after processing. Converted PRC files are auto-removed within 24 hours.