[sdiy] Digital audio demo on Youtube

[Neil Johnson]

On 21 February 2014 10:25, Neil Johnson <neil.johnson71 at gmail.com> wrote:
>> Also on page 5 (6 in MkII) is Figure 1 which shows the timing of the
>> outputs, and clearly shows the output of each channel of the 4051 as a
>> sequence of short pulses.
>
> To add, each pulse is 0.95us wide, at a period of 22.7us (44.1kHz), a
> duty cycle of just over 4%.

And I can also confirm (thanks to Steve at Roland UK sending me the
service manual) that the R-8m does exactly the same, albeit only 6
individual outputs rather than 8 for the R-8.
Oh, and the weird-looking resistor arrangement at the stereo L/R pair
implements the 7-position pan setting.  Crude, but it works.

Neil
--
http://www.njohnson.co.uk