6 Mar
2003
6 Mar
'03
4:45 p.m.
On Wed, 5 Mar 2003, Greg Rippin wrote:
Do MIDI In jacks still use opto-isolator components? I think they did in the original spec... The rise- and fall-times could account for the added delay perhaps?
Not possible. 1 bit at midi rate is 1/31250Hz = 32 microseconds The rise- and fall-time of this optocoupler should be a fraction of that.
I also heard the myth more than once that there is a substantial delay between midi-in and midi-thru ports. There is a delay from midi-in to midi-out or a 'soft' midi-thru, because the midi-commands are parsed before thay're retransmitted. A dedicated midi-thru is just a signal buffer.
j#|@