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Subject: Midi thru box

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Original Message 1/16 17-Sep-98 @ 07:03 PM - Midi thru box

rouge

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Any opinions on these?
Are they a real heap of shit?

Whoops!
What about 'Philip Rees'????

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Message 2/16 18-Sep-98 @ 03:22 AM - RE: Midi thru box

xoxos

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umm..duh. is this anything like a multi-out box? i've got a midiman 2 in/2 out i no longer require.. no complaints about the product. phantom power = nice!

xoxos.

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Message 3/16 18-Sep-98 @ 03:23 AM - RE: Midi thru box

xoxos

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friggin myriad midiboxes.. i mean a 1 in 4 out..

xoxos.

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Message 4/16 18-Sep-98 @ 05:31 AM - RE: Midi thru box

influx

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I just got one...mostly cuz my bass station doesnt have a thru port, and I wanted to be able to use the sounds in my Emax (also a controller)...anyway..I got it for $10 and I am purely stoked...1 in 8 out switchable...well worth the cash.
The dude had a few, so if you need one let me know and mebbe...

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Message 5/16 18-Sep-98 @ 06:35 AM - RE: Midi thru box

buggo

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switchable? does that mean you can switch it to a merge box? because pretty soon i will be needing a merge, if i get another keyboard (non-module that is) because on my fucking juno you cant turn of local control so its a shitty controller...a variety of other reasons too...and i don't want to have to use the juno as a module...oh fuck it, i'll worry about it when i get there...

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Message 6/16 18-Sep-98 @ 07:44 AM - RE: Midi thru box

LFUX

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No-switchable as in 1 in--8 outs, or 2 ins--4 outs each

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Message 7/16 18-Sep-98 @ 08:55 AM - RE: Midi thru box

Richie

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I bought a Philip Rees 1 in 4 out thru box (not switchable or anything), It's pretty essential really, if you have more than a couple of midi instruments / effects, All the cheaper stuff won't have thru connections so you need that box.. I think mine cost 20ukp new.

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Message 8/16 18-Sep-98 @ 04:16 PM - RE: Midi thru box

xoxos

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damn, influx, i doubt i'll need something like that for a while, but for $10 i'll take 2! email me at xoxos@azstarnet.com and i'll send you a check!

xoxos.

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Message 9/16 18-Sep-98 @ 06:18 PM - RE: Midi thru box

influx

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These are used, understand, so I dont know if the guy has anymore...Ill check, then Ill email you and let you know, cool?

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Message 10/16 18-Sep-98 @ 10:19 PM - RE: Midi thru box

Ferg

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As long as we are sort of on the subject, perhaps someone could tell me how many separate instruments I can expect to chain together without signal degradation? Does a box like the ones you're talking about solve that problem?
Thanks

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Message 11/16 19-Sep-98 @ 01:57 AM - RE: Midi thru box

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I think only like 5 or six, and yes, a thru box will prevent midi delays

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Message 12/16 19-Sep-98 @ 10:13 PM - RE: Midi thru box

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I've got a JX3P old synth with no MIDI thru and no way of selecting incoming channel - so what do ya reccomend?

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Message 13/16 20-Sep-98 @ 03:14 AM - RE: Midi thru box

xoxos

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hmm.. just started setting up my pc for sequing. i'm still waiting for the software (micrologic.. impatience..) but some of the crap sequencers i've found on the web offer the option of specifying which one of the two midi outs on my opcode 2in/2out to send through.

xoxos.

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Message 14/16 20-Sep-98 @ 08:59 PM - RE: Midi thru box

kilo

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midi delay is a myth..... what you do get is signal degradation due to bandwidth sqeezing at the thru box... but delay... nope... apparently

on the subject of sequencers.... apparently Emagic are coding a pc ground-up version of L-Audio.... so i guess in light of all the cubase problems, it's worth a wait...

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Message 15/16 20-Sep-98 @ 10:19 PM - RE: Midi thru box

influx

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So, wait...a thrubox might create problems instead of eliminate them? I thought linking more than say 5 boxes together was asking for it, so the thrubox killed that...

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Message 16/16 21-Sep-98 @ 06:01 PM - RE: Midi thru box

nomad

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there is a delay, but it's very small....
midi transmits at 30Khz. that's 1/30Khz seconds/bit.
breaking out my calculator...that's 3.2ns (nanoseconds!)
there's 10 bits/digit (8 bits + start/stop) so 25.6
nanoseconds (that's .256ms!) Now, there are 3 bytes
in a typical midi message, so multiply by 3 = 76.8ns
(that's .768ms...i may have the 'n' wrong though).
That's how long it takes a midi message to be transmitted.

OTOH, the speed of light is 186,000 miles/second.
A mile is 5280 feet (US). So, the electrical signal
will travel the 6 feet from your computer to the
end of the chain in approximately 6.109x10-9 s

for comparison, the time above is 7.68x10-5....
this isn't exactly right, but it's close enough...

most midi thrus are hardware i.e. the midi in is
connected directly to the midi out with wire, nothing
in between. then you are just putting a lot of load
on that wire which degrades signals. this isn't so
bad.

however, some synths (like the tx81z is one I know of)
have "soft" thrus, meaning that the synth reads the
byte off the port, and then spits it back out the thru.
these suck. there's no telling how long it will take
to spit out the message, and most don't pass sysex.
it can be up to 30ms, which is in Dolby surround
territory......

another advantage to midi thrus is if you have a pc
or mac midi editor for more than one of your synths,
but only one midi input...you can use the patchbay
to determine which one is talking back to the computer
during programming, then switch easily back to the
controller.....

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