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Unfortunately, for this I'd need another laptop (not cheap) with MIDI
interface and an independent MIDI merge/patchbay. I did however come up
with another solution:
The setup for the event consists of:
* Laptop (running Live!)
* Waldorf Q
* Roland MC-505
* Behringer FCB1010
* other Stuff (not relevant here)
Concentrating on the relevant core of the setup, MIDI runs like this:
Laptop Out: to Waldorf Q In
Waldorf Q Out: to MC505 In
Waldorf Q Thru: to other stuff
MC505 Out/Thru: to Behringer
Behringer Out/Thru: to Laptop
The MC505 is set to slave to clock.
Now comes the tricky part:
The Q syncronizes its internal clock to the clock at the MIDI in and
sends the internal clock at the out. Now in the normal case (i.e. laptop
is running), the Q syncs the internal clock to the laptop and sends the
internal clock (which is identical to the laptop clock) to the MC505. In
the event of a laptop crash, the Q will no longer receive a clock at the
input, so it continues to send the now free-running internal clock which
runs at the tempo and in the phase it last synced to! So all I have to
do to have at least a beat going is to always have the MC505 drum along
and in case of a crash just unmute the respective channels!
Everyone should design their devices like Waldorf did.
Rainer
-----Ursprüngliche Nachricht-----
Von: Bernhard Wagner [mailto:loopdelightml@nosuch.biz]
Gesendet: Samstag, 5. März 2005 13:15
An: Loopers-Delight@loopers-delight.com
Betreff: RE: wanted: MIDI watchdog
At the Y2K4 live looping festival, Bob Rice did a set with Richard
Zvonar. Bob has worked with e.g. Frank Zappa, Lyle Mays, Chick Corea.
Apparently, his USP is to have two identical set-ups running
simultaneously. So when one fails he switches to the other and starts
fixing the first which then functions as the backup for the second.
Maybe you can use a second laptop as a backup which periodically
synchronizes with the first? You would feed the output of both laptops
into a switchable MIDI box, like MIDIman/M-Audio 3X8 MIDI through box -
which is a box that will take the signals sent to three different
inputs, and then route them to the eight outputs using physical
three-way switches located on each of the eight output channels, which
can be altered by hand, on the fly. When Laptop #1 crashes, you flick
the switch, now feeding MIDI from Laptop #2
Bernhard
> -----Original Message-----
> From: Rainer Thelonius Balthasar Straschill [mailto:rs@moinlabs.de]
> Sent: Samstag, 5. Marz 2005 12:26
> To: Looper's Delight Mailing List
> Subject: wanted: MIDI watchdog
>
>
> Do any of you know of a device that does the following:
>
> It will react to a lack of MIDI clock (or a lack of a defined MIDI
> message recurring regularily) and when this event occurs, start to
> either
>
> * send a MIDI message
> * start to play something itself (i.e. cheap drum machine, loop
> (!))
>
> And it should be cheap! And it shouldn't be a piece of software.
>
> The idea behind this. I don't trust in laptops. With the setup I'm
> currently about to create, situations are imaginable where the musical
> flow will be endangered when the laptop crashes. So if it fails, I
> want something to continue "in the beat".
>
> Rainer
>