Random access to sequencers

Jim Purbrick wrote:

Now Jan has sorted out my dissapearing notes (thanks Jan), here are thepatches I was itching to send to the list. They demonstrate a mechanism forrandom access to sequencer modules that is simpler, cheaper, more generaland more flexible than my previous jump sequencer approach. The mechanismuses a signal to specify the current desired index into the controlledsequencer, so LFOs, envelopes, oscillators, audio inputs or anything elsecan be used to index the controlled sequence. Sequences can be made to move backwards, bounce backwards and forwards or jump around arbitrarily - thesequencer effectively becoming a chunk of ROM. I've kept the attachedpatches simple so it's easy to see what's going on, but there is a lot thatcan be done with this.

Jim Clark wrote:

This was pointed out some time back (more than a year ago) by Thierry Rochebois.The results of his experiments can be found in the Nord Modular document (still under construction) at http://www.cim.mcgill.ca/~clark/nordmodularbook/nm_modtech.html or here (scroll down past the vocal filter plots to get to the oscillator spectrum plots) Thierry found the aliasing that you describe in most of the oscillators, but found that the Spectral Oscillators have very low aliasing.