Analogue-sequencer

I'd like one.

 

Thanks,

Simon
Canberra
AUSTRALIA

 

________________________________

From: analogue-sequencer@yahoogroups.com
[mailto:analogue-sequencer@yahoogroups.com] On Behalf Of Colin Fraser
Sent: Friday, 15 June 2007 8:12 AM
To: analogue-sequencer@yahoogroups.com
Subject: [analogue-sequencer] P3 v4 memory expansion

 

Folks,

One of the things that became clear from developing the v3 to v4
conversion
utility (download coming soon), is that by re-using the patterns in
different orders in many playlists, it's possible to create a bank in v3
that uses quite a bit more storage space in v4.
If every bank re-uses patterns in this way (now known as 'Nagling'), it
can
be impossible to fit a converted v3 dump in v4, even using ghosting
where
ever possible.

Since v4 was developed as a test-bed for the P3 replacement hardware
platform, it was designed for scalable memory.
I've just completed a prototype memory expansion board for P3, which
increases the internal RAM from 64k to 544k.
Note that this board is only compatible with v4.
It uses bank switching to give a dedicated 224 bars of pattern storage
per
v4 bank - still dynamically allocated between tracks and parts.
This is rather more than the average 24 bars per bank in the stock P3 -
3,200 extra bars in total, on top of the standard 384.

If you've been using v4, and would like to buy a memory expansion board,
let
me know.
I'll be finishing off a PCB layout shortly and ordering a run of boards.
Installation will just be a case of unplugging the 32k SRAM in U2, and
replacing it with a daughterboard.

The prototype can be seen here:
http://www.sequentix.com/p3-half-meg-memex.jpg
<http://www.sequentix.com/p3-half-meg-memex.jpg> 

Best regards,
Colin Fraser
Sequentix Music Systems Ltd
http://www.sequentix.com <http://www.sequentix.com> 

 
  
-----------------------------------------------------------------------
This email, and any attachments, may be confidential and also privileged. If you are not the intended recipient, please notify the sender and delete all copies of this transmission along with any attachments immediately. You should not copy or use it for any purpose, nor disclose its contents to any other person.
-----------------------------------------------------------------------


[Non-text portions of this message have been removed]