BSII-SX and SMPTE time code

Archiver

Hello all,

This is my first post to the list, so bear with me. [noparse]:)[/noparse]

I'm trying to figure out a way to make a BSII-SX generate SMPTE time
code. From what I can figure out (without having the SMPTE time code
documentation), it is a modulated 1200 Hz audio signal... I dont see any
reason why a BSII couldn't produce such a signal, or at least control the
modulation of an externally generated 1200 Hz signal.

Has anyone ever made a BSII generate or read SMPTE time code before?
I'm sort of curious as to whether it's been done or not...

Thanks in advance,
Brad Stockdale - brad@g...

Archiver

Brad Stockdale wrote:
>
> Hello all,
>
> This is my first post to the list, so bear with me. [noparse]:)[/noparse]
>
> I'm trying to figure out a way to make a BSII-SX generate SMPTE time
> code. From what I can figure out (without having the SMPTE time code
> documentation), it is a modulated 1200 Hz audio signal... I dont see any
> reason why a BSII couldn't produce such a signal, or at least control the
> modulation of an externally generated 1200 Hz signal.
>
> Has anyone ever made a BSII generate or read SMPTE time code before?
> I'm sort of curious as to whether it's been done or not...
>
> Thanks in advance,
> Brad Stockdale - brad@g...

Shouldn't be too hard to make a timecode _generator_.

I've been thinking of doing the same thing.

You should find out a bit more about the coding of the signal though.

It is a bi-phase mark pulse train with a polarity inversion at every bit
transition, and a polarity inversion in the centre of the bit that
repesents a one.

There are many examples and referances available on the web.

Reading is a different matter though, I suspect that the Stamp is too
slow to do the job without some external help, particularly at spooling
speeds.

Cheers!

Alan.