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King Rat
Joined: Mar 11, 2005 Posts: 98 Location: London
Audio files: 5
G2 patch files: 13
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Posted: Sat Jun 11, 2005 7:05 am Post subject:
Clock reset from drum machine |
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Hi all,
I've been using my G2 live with my band for a while now with an Alesis SR-16 drum machine controlling the clock (and our drummer!) for sequenced patches that must be in time with the kit.
It works ok but there are a few glitches. The biggest problem is resetting the clock whenever the DSP has to recalculate (i.e. when you load a new performance) to ensure that the "1" on the drum machine coincides with the "1" on the G2. Our drummer has a foot pedal that starts and stops the drum machine and we have to go through a whole load of nods and winks on stage once a performance is loaded so that he knows when to reset the clock. One problem is that if the clock is already running on the G2, in order to line up the drum machine bar position with the G2, you have to stop the clock and restart it again. Usually we end up hitting start and stop about ten times just to make sure!!
This issue is manageable but not ideal and occasionally we have had the embarrasing situation in the confusion of a gig when the G2 is out of sync with the band.
So.... my question is this:
Is there a way of sending a MIDI signal from the drum machine that can be patched to the reset input on the clock module and sequencer module(s) in the G2 to make sure that the reset is absolutely fail-safe. Until now, I have just been patching the clock active output from the clock module to the reset input on the sequencer, but then you have to go through the rigmarole described above.
I'm thinking you can set the drum machine to send MIDI notes (that correspond to the metronome) but then wouldn't these trigger notes on the G2? I'm sure there's a fix, but I'm not much of a MIDI expert.
Sorry for the long-winded post. Hope someone has an answer.
Cheers,
Angus |
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The Why Project
Joined: Dec 05, 2004 Posts: 118 Location: Ireland
G2 patch files: 3
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Posted: Sat Jun 11, 2005 10:57 am Post subject:
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Hi,
Here's my solution, think I gave it to you before:
http://www.electro-music.com/forum/topic-4091.html&highlight=
You should be able to select which note your SR-16 is sending out
from any of the pads/internal sounds.
Just sequence one hit of the selected pad at the start of every bar, and
your G2 will stay in sync when using the above solution.
The only thing: You'll now have 1 pad/internal sound less to play with... as
you've 'reserved' the pad for the trigger...
Regards,
The Why Project |
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King Rat
Joined: Mar 11, 2005 Posts: 98 Location: London
Audio files: 5
G2 patch files: 13
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Posted: Sun Jun 12, 2005 4:47 am Post subject:
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I remember your solution, but wouldn't setting my drum machine to send drum notes also trigger unwanted notes on the G2? I guess my question is, how do I filter incoming MIDI note data so that they are only used for clock reset purposes, and do not actually play notes?
Cheers, Angus |
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egw
Stream Operator
Joined: Feb 01, 2003 Posts: 1569 Location: Asheville NC
Audio files: 18
G2 patch files: 8
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Posted: Sun Jun 12, 2005 8:28 am Post subject:
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You can use the midi receive module to process notes coming in on a different midi channel from the one the G2 is playing. |
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King Rat
Joined: Mar 11, 2005 Posts: 98 Location: London
Audio files: 5
G2 patch files: 13
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Posted: Mon Jun 13, 2005 12:57 am Post subject:
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Cool - I'll give it a try |
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King Rat
Joined: Mar 11, 2005 Posts: 98 Location: London
Audio files: 5
G2 patch files: 13
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ian-s
Joined: Apr 01, 2004 Posts: 2669 Location: Auckland, New Zealand
Audio files: 42
G2 patch files: 626
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King Rat
Joined: Mar 11, 2005 Posts: 98 Location: London
Audio files: 5
G2 patch files: 13
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Posted: Mon Jun 13, 2005 4:04 am Post subject:
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I've tried your solution.
It sometimes works and sometimes doesn't
Because you're trying to force a MIDI note to line up with a clock pulse with the flip flop, it really depends on the length of logic pulse you set from the MIDIrcv module so that there's an overlap between the two. But then that in itself introduces a margin of error so the two can still remain out of sync if you start the external master while the G2 clock is already running.
I'll try sending out a retrig MIDI note on the last 1/16 of the bar, but I'd love to know why there is this timing mismatch in the system. I get nervous when live gigs depend on timing accuracy but I don't understand the problem! |
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