VCON

Powerline in, WAV out (or the other way round). Runs entirely in your browser.

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or pick a public clip from the archive (0 listed; private mail is never offered):

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-I (input) -O (output) -S

Reading PC/PU into WAV:

ABOUT THIS TOOL

Recreates

VCON.EXE v1.4, "VCON Voice File Conversion Utility", Talking Technology, Inc. (Turbo C 1987).

Date

1 Oct 1990

Who likely wrote it

Talking Technology, Inc. (the voice-card vendor). No person's name is in the program.

What changed in the web version

WAV is a new source and target (the original had no such format). PC and PU are the two Powerline I formats this archive holds; the BigMouth and Powerline II formats are not offered.
Reading a PC file uses the card's own decoder by default (the exact delta table of the voice card's driver), which is finer than VCON's integer tables; the "VCON tables" option gives what VCON itself would have produced.
Everything runs in your browser. Nothing you upload leaves it.

Kept on purpose (the original's bugs and habits)

The 40-byte header of a PC/PU file is read and thrown away; the output gets 40 ZERO bytes. A header is never copied.
A PU output loses its first sample; a PC output drops a last odd code.
The "input samples" figure counts one extra code fetched at the end of the file.

Ground truth

inventory/exe_c/vendor_tools/VCON/ and scripts/decode-card.js