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Conference napalm::commusic_v1

Title:* * Computer Music, MIDI, and Related Topics * *
Notice:Conference has been write-locked. Use new version.
Moderator:DYPSS1::SCHAFER
Created:Thu Feb 20 1986
Last Modified:Mon Aug 29 1994
Last Successful Update:Fri Jun 06 1997
Number of topics:2852
Total number of notes:33157

1368.0. "Are there Synths with >8 Channel Multitimbrality?" by HEART::MACHIN () Wed May 11 1988 10:05

    Are there any synths around that give you more than 8 voice
    multitimbrality? 
    
    If not, why not? Is this a fundamental constraint on the designers,
    like gravity and the dollar/yen ratio? 
    
    I would have thought that the more simultaneous voices you had
    available, the better -- for recording AND performing. (I saw an
    ad for the D10 that said "32 voice multitimbral", but I expect there
    should have been at least a semicolon in there).
    
    Richard.
    
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1368.1Eight is NOT enoughDREGS::BLICKSTEINThe height of MIDIocrityWed May 11 1988 13:309
    Well there are things out there that have more than 8 voices, but 8
    sure seems to be the standard.  I am somewhat surprised that despite the
    rapid pace of technology, we still have been "stuck" on 8 for so long.  
    In my experience, you really need more.
    
    Roland MT-32 has "up to" 32 (depends on complexity of the patch), Roland
    S-550 (sampler) has 16.
    
    	db
1368.2Comples = complex below...HEART::MACHINWed May 11 1988 13:4410
    Humph. The MT32 seems better than straight 8-voice, even if only
    simple patches count as 'single-voice'. 
    
    But to add to .0: surely, more timbres also means more immediately
    comples sounds, sinc voices that can fire simultaneously over MIDI
    can surely be stacked internally. I imagine you could create a knockout
    8-voice performance patch with a 32-voice multitimbral synth in
    this way.
    
    Richard.
1368.3Maybe not 32, but more than 8DREGS::BLICKSTEINThe height of MIDIocrityWed May 11 1988 14:044
    True (about the MT-32) but I think realistically you can expect
    to be able to have more than 8 voices available for most applications.
    Also, the drums seem independent of the partial allocation so they
    also count in a lesser sense.
1368.4Variable VoicesTYFYS::MOLLERVegetation: A way of lifeWed May 11 1988 15:1210
    The drums on the MT-32 are independant, as far as the other patches
    go. I'd say 16 to 20 is average (at least that seems to be what
    some of my sequences are using). The thing I like about the MT-32
    is it offers similar patches using various quantities of layers,
    so, if you find that you need to tweek a sequence, you select a
    simpler version of a sound & save yourself a layer or two. 8 voices
    are fine if you are playing live. If you are sequencing, you tend
    to run out of resources pretty fast.
    
    							Jens
1368.5Simultaneous Timbres???AQUA::ROSTSweeper at the Hilton HotelWed May 11 1988 15:2412
    
    However, while the MT32 can supply "up to" 32 voices, it still
    only handles eight *simultaneous* timbres.
    
    Do any of the 16 or 24 voice boxes out there support more than eight
    timbres???
    
    The number eight itself is no suprise, after all most synths are
    computer based now and orienting things in byte-sized chunks makes
    sense.
    
    
1368.6monopatch vs multipatchHEART::MACHINWed May 11 1988 15:3315
    Until .5, I was impressed by the MT32.
    
    Definition of terms required. Which of the following are true:
    
    32 note polyphonic + monotimbral  = 32 notes (one patch) sound 
    simultaneously
    
    32 voice poly + multitimbral = 32 notes (up to 32 patches) sound 
    simultaneously
    
    By the way, there are loads of computery numbers -- shame they picked
    8!
    
    
    Richard.
1368.7I wonder where the 20 came fromCTHULU::YERAZUNISYou're walking along the beach and you find a tortise...Wed May 11 1988 15:345
    The EPS sampler is up to 20, or as few as one.  You pays your $2K
    and you takes your choice. 
    
    Dynamic allocation of the 20 voices, of course.  Each patch takes
    as many as it wants.
1368.8Is 8 so bad for timbrality?DREGS::BLICKSTEINThe height of MIDIocrityWed May 11 1988 15:4211
    8 seems like an entirely reasonable number for multi-timbrality.
    Remember MIDI essentially limits you to 16 timbres anyway, and
    since you can do patch changing via MIDI the 8 timbres limit only
    means that you can't have more than 8 timbres at any one instant,
    but you can have hundreds of timbres during any one song.
    
    Hardly seems limiting to me.
    
    The timbrality seems more limited by 16 MIDI channels than anything
    else.  So with 8 + drums the MT-32 gives you something that can
    fill slightly more than half your timbral space anyway.
1368.9A modest proposal...HEART::MACHINWed May 11 1988 15:484
    I suppose so. So a good combination would be 32 note poly, 8 voice
    multitimbral.
    
    Richard.
1368.10These are trained professionals, please don't try this at home.NYMPH::ZACHWIEJADECwindows in my lifetimeWed May 11 1988 15:5616
   
   The slick MIDIOT can double the timbral space on some synth modules
   that allow odd and even note seperation and scale  definition.  For
   instance the TX-81Z.  Have one TX-81Z respond to  only  even  notes,
   but change the scale so that your standard twelve notes are  spread
   out across 24,  do the same to a second but have it respond only to
   odd notes.
   
   You decrease your range by half,  which is okay for most orchestral
   intruments,  and can only seperate the note on-off data,   but  you
   CAN have two timbres receive on the same channel this way.
   
   Note also that your score will be somewhat *^&$%# up  but  what  do
   you want for a $350 solution.
   
   _sjz.
1368.11What about setting up keyboard splits??FREKE::LEIGHWed May 11 1988 16:247
    Another solution for more than one timbre on a channel at one time
    is to set up a split point with two separate patches. Notes going
    to one section are played with one patch and those going to the
    other section get played with the other patch.
    
    chad
    
1368.12FWIWMIZZOU::SHERMANBaron of GraymatterWed May 11 1988 16:5813
    This has been mentioned before, but with the TZ you can make each
    voice respond only to a certain range.  You can also put a note
    shift on each voice to compensate (+/- 2 octaves, as I recall).  There 
    are 8 voices, so if you split a keyboard into 8 sections and shifted 
    the notes as appropriate you could independently control all 8 voices,
    each over about an octave range, by using different keys and transmit 
    this all on one channel.  If you are sequencing and are limited
    to 16 MIDI channels, you could tie in 16 TZ's on the same bus and
    run an orchestra of 128 mono voices or 512 operators.
    
    
    Steve
    
1368.1315 is almost 16.PANGLS::BAILEYSteph BaileyWed May 11 1988 17:088
    Yes, the Kawai K5 and K5m can produce up to 15 timbres simultaneously.
    
    Why 15?  Because 5 lines fits on the editing screen the way they
    have it layed out, and there are three pages for each screen.
    
    Each timbre may produce a fixed or dynamic number of voices.
    
    Steph
1368.14ThicknessAQUA::ROSTSweeper at the Hilton HotelWed May 11 1988 17:2714
    
    As for why it would be nice to have more than 8 timbres simultaneously:
    
    Layering....
    
    The MT32 architecture is ill suited for this (unless you have a
    computer hooked up to it) due to the oddball MIDI channel assignments.  
    
    But by placing more than one timbre on each MIDI channel for layering
    you can easily find use for more than 8 timbres.
    
    
    
    
1368.158 strikes againPAULJ::HARRIMANLet's keep sax and violins on TVWed May 11 1988 18:5521
    
    
    re: Bill and your comment about the EPS
    
      The EPS, while it does 20 'voices', still only allows up to 8
    simultaneous timbres (instruments) at a time, memory permitting.
    The 20 voices are dynamically assigned, as available, to whatever
    instruments need them. You may bias the assignments somewhat by
    setting an instrument to only want a certain number of voices (the
    'set number of voices' prompt)... 
    
      So there's another example of the magic number 8. Of course, the
    8 are all it holds at a time anyway. Not too shabby for a $2K sampler.
    I have no idea why it only deals with 20 voices, but this is a sampler
    with 13-bit i/o, 16 bit storage, a 32 bit processor, 24 bit floating
    point data munging, and a bunch of other crazy numbers that don't
    make sense.
    
      It even allows for 10 outputs...
    
    /pjh
1368.16multisample to get at all 20CTHULU::YERAZUNISThe light that burns twice as bright burns half as longThu May 12 1988 18:077
    But you can multisample across the EPS keyboard, so one instrument
    might have more than one timbre (look at the "drum kit" instrument
    :-) )
    	     
    So you can have what sounds like 20 simultaneous timbres...
    
    	-Bill
1368.17yeah, okay...PAULJ::HARRIMANLet's keep sax and violins on TVThu May 12 1988 18:458
    
    The latin percussion is better.
    
    Yeah, fair enough, but hacky anyway. You end up splitting your
    instrument into smaller pieces. That's like having a 'sax section'
    made up of alto, tenor and baritone... eats memory, but doable.
    
    /pjh
1368.18Uh, This Little Sequencer Played Strings, and...DRUMS::FEHSKENSFri May 13 1988 18:3412
    The MIDI limit of 16 simultaneous timbres is probably not a serious
    limitation for pop applications, but for "classical" music it's just
    barely adequate.  I'll check some scores tonight to get some numbers
    on what really happens in "representative" orchestral scores (e.g.,
    a Beethoven symphony, a Mahler symphony, a Strauss tone poem,
    Schoenberg's Gurrelieder, a Chopin etude (joke, ha ha!)).
    
    You can get around this limit by running multiple MIDI busses from
    multiple sequencers synched together.
    
    len.
    
1368.19sequencer monsterSALSA::MOELLERI LIKE 'point-n-grunt' interfaces!Mon May 16 1988 20:202
    The Kurzweil 1000PX gens 24 voices simultaneously, over 16 timbres
    max (because of the 16 MIDI chan limit, natch).. nice.
1368.20GIBSON::DICKENSSurfing with my BuickWed May 25 1988 17:307
    re .18
    
    There are several multiple-out midi interfaces available for software
    sequencers.  C-labs Creator can use 64 midi channels - 1-16 x 4
    busses.  A reviewer claimed he would need this with all his synth
    gear, effects devices and his light show all sequenced.
    
1368.21Why don't folks like the poor K5?NCVAX1::ALLENSat May 28 1988 19:0024
    re. .0 and .13
    
    	I was wondering if anyone was going to mention the K5! Steve
    had one before I did, but in the past 6 months or so I've had a
    ball with it.  There ARE 16 voices available to sequence or play.
    As Steve mentioned you can only STACK 15 of these at a time in what
    Kawai calls "Multi" patches.  But, if I understand the definition
    of the term "multi-timbral", the K5 will give you twice the 8-voice
    limit you now face.
    
    re. .18
    
    	All of the above is great when working on classical music. 
    I have been sequencing a lot of baroque chamber music (Handel's
    Concerti Grossi, etc.).  Having 16 parts available means that with
    just the one K5, I can cover all the voices and still have a few
    left over for continuo, voices, percussion, etc.. At the risk of
    sounding like a Kawai commercial, they have just come out with a
    new synth, the K1, which on initial hearing sounds good and has
    percussion (which the K5 did not). (I am thinking of getting the
    K1 in a module which should give me more voices than I know what
    to do with).
    
    Bill