[sdiy] MIDI clock query

[Paul Cunningham]

it does send start (and stop)... it's custom hardware actually. my xt needed basically a voice reset (quick power button click) to get it to re-synchronize at song position 0... i'll know more details next week when i get that setup again for a project with a korg kontrol 49 ive never used before. lastest os: yes

however i wasnt only refering to problems i had with the xt, but moreover any combination of hardware as they all do not implement midi clock and its related messages completely, much less document that exact behavior consistently. -pc

On Feb 6, 2011, at 7:30 PM, Joel B <onephatcat at earthlink.net> wrote:

> Make sure your sequencer sends the start command, I don't have any problem getting my MW II to start and line up the beats properly, it's basically the same machine with less knobs.
> 
> Also make sure you are on the latest os.
> 
> -Joel
> 
> 
> 
> Sent from my iPhone
> 
> On Feb 6, 2011, at 2:48 PM, Paul Cunningham <paul at cometway.com> wrote:
> 
>> MIDI Clock is pretty straightforward until you start investigating how various clockable/clock-generating devices actually implement it. For example, arpeggiators may not start on the note you want and/or may completely ignore the start/stop and song-position messages. I've also seen clocks dropped, which can be insidious at a resolution of 48 clocks per quarter note.
>> 
>> On a Waldorf XT, I used to have to reload the patch before sending the start to ensure that my clocks were getting lined up properly for the arpeggiator. This aspect of using MIDI clock is annoying for live gigs. -pc
>> 
>> 
>> On Feb 6, 2011, at 3:25 PM, ASSI wrote:
>> 
>>> On Thursday 03 February 2011, Tom Wiltshire wrote:
>>>> I'd always wondered how MIDI indicated the start of a bar.
>>> 
>>> It sort of doesn't, except for the very first.  You start at the first bar 
>>> when the song position pointer is at 0 (which implicitly happens when you 
>>> receive START), but since there is no way to tell what time signature is 
>>> used, you just don't know where a bar starts or ends.  Song position is 
>>> counted in beats, every 6 MIDI clocks (a sixteenth or semiquaver).
>>> 
>>> 
>>> Achim.
>>> -- 
>>> +<[Q+ Matrix-12 WAVE#46+305 Neuron microQkb Andromeda XTk Blofeld]>+
>>> 
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>>> http://Synth.Stromeko.net/Downloads.html#BlofeldUserWavetables
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