S/PDIF output extension for Portable MiniDisc Devices

January 31, 2007

Here is an digital audio project that uses S/PDIF.

“Here’s a very trivial S/PDIF transmitter hack for portable MiniDiscs and other digital audio devices lacking S/PDIF output.

The s/pdif transmitter runs from +5V, 44kHz 16bit input at 384xfs, is set to consumer mode output, and doesn’t transmit any COPY bit (copyright protection disabled). The board can be connected directly to a PC motherboard, or via a Toshiba TOTX173 to an optical cable feed, or with a small transformer to a coax line.”

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4 Responses to “S/PDIF output extension for Portable MiniDisc Devices”

Brian Says:
January 31st, 2007
Doesn’t look trivial to me.
boris Says:
February 2nd, 2007
damn useful. lack of digi-out on portables was a @#*&% blunder from hell.
sebastian nielsen Says:
February 3rd, 2007
Thats a violation of the DMCA.
Alan Parekh Says:
February 3rd, 2007
Hey Sebastian,

Never thought about the DMCA, but would it fall into that since the circuit would not be decoding anything…

Although I guess everything from it could be digitally duplicated without the copy protection, so I guess this could be an issue.