HCOM to WVE Converter

Encode HCOM audio as Psion WVE format online

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Handheld Audio

Move HCOM from classic Macs to Psion handhelds — WVE format is ready for Psion devices and emulators.

Cloud Processing

No vintage devices needed. The conversion runs on our servers from any modern browser.

Files Protected

HCOM uploads are erased immediately. WVE output files are deleted within 24 hours.

How to convert HCOM to WVE

1

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

2

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

3

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

About formats

HCOM is a Huffman-coded audio format from the early Macintosh era, designed to shrink digitized sound for distribution on floppy disks and bulletin board systems when storage was precious and modems were slow. The encoder takes 8-bit unsigned PCM input, computes a frequency table of sample-delta values, and builds an optimal Huffman tree that replaces common deltas with short bit sequences. Compression ratios of 2:1 or better were typical for speech recordings, a meaningful saving when a 3.5-inch floppy held only 800 KB. Files were distributed as Macintosh resource forks and played through utilities like SoundApp and the BinHex ecosystem that defined Mac software exchange in the late 1980s. The format supported sample rates up to 22.255 kHz, matching the output capabilities of original Macintosh sound hardware. Tools such as SoX retain HCOM decoding support, ensuring that archived recordings remain accessible decades later. HCOM holds three practical advantages for preservation work: lossless compression that recovers the original samples exactly, a self-contained Huffman table embedded in each file for dependency-free decoding, and historical prevalence across thousands of vintage Mac sound archives.
Developer: Apple Computer
Initial release: 1985
WVE is the audio format native to the Psion Series 3 family of personal digital assistants, released by British company Psion PLC beginning in September 1991. These clamshell PDAs included a built-in voice recorder, and all dictation functionality relied on WVE files to store captured sound. Each file begins with the ASCII signature "ALawSoundFile**" followed by a minimal header, then raw A-law encoded audio sampled at 8 kHz — a rate inherited from digital telephony standards. At 8000 bytes per second, a one-minute recording occupies just 480 KB, which was essential given that Psion devices stored data on SRAM cards typically ranging from 128 KB to 2 MB. The A-law encoding provides reasonable speech clarity within these tight storage constraints, prioritizing intelligibility over high-fidelity reproduction. WVE files can be converted to WAV or other modern formats using SoX, Awave Studio, or specialized Psion file utilities. While the format is firmly a product of early-1990s handheld computing, it holds historical significance as one of the first audio recording formats designed for pocket-sized consumer devices. Collectors and researchers studying mobile computing history occasionally encounter WVE files when recovering data from legacy SRAM media.
Developer: Psion PLC
Initial release: 1991

Frequently Asked Questions

What is WVE?

WVE is an 8-bit A-law audio format used by Psion handheld PDA devices for voice recordings and audio playback.

Why convert HCOM to WVE?

Both are vintage formats. Converting HCOM to WVE bridges classic Macintosh and Psion handheld audio for retro computing projects.

How does WVE relate to PRC?

Both are Psion audio formats. WVE uses A-law encoding while PRC uses a different Psion-specific recording format.

What reads WVE files?

SOX handles WVE audio. Psion emulators and original Psion hardware also play WVE recordings natively.

Is the process secure?

HCOM uploads are deleted after processing. WVE results are removed from servers within 24 hours.