Midi Gliss..please Help! Options

[highlander2]

Im trying to produce a realistic gliss (portamento, or glide) between two notes or two intervals of a solo string sampled instrument.

I want to be able to specify the starting and ending notes or intervals, and have them seen, sound, and show up as such, in a notation program, and in the sequencers notation.

Any SPECIFIC ideas how to do this?

Any help will be GRATEFULLY appreciated!

Thanks Bob


PS:
the ways Ive seen online are the following:

1)

****This method requires that your MIDI device supports standard “Registered Parameter Messages”
(RPMs), which is common but not universal.

1. Set controllers RPN (100 for MSB and 101 for LSB) to 0.
2. Set data entry (controller 6(MSB) and 38(LSB)) to the number of semitones and 128ths of a semitone that you need. For example, setting controller 6 to 12 will allow you to have 12 semitones (1 octave) as the maximum range up and down. The default range is 2 semitones usually
3. Now, at the places where glissando or portamento is required, create curves in pitch bend (NOT a controller!). You should take into account the range you set above. E.g. a curve from pitch bend 0 to 4096 will be a glissando from the original note to 6 semitones above (augmented fourth); a curve from 0 to -1365 will be a sliding from the original note to 2 semitones below--provided that you set data entry to 12. If you set data entry to 6, however, the same pitch bends will give you half the effect (i.e. 3 semitones above and 1 semitone below, respectively).
4. Be sure to set pitch bend back to 0 after the glissando passage is done (it is not reset by controller 121, since it's not a controller).

--The problems I've had with the above is that you cant specify BOTH intervals, as one is sounded by a pitch bend event, and I cant get more that 4 semitones pitch bend, even though CC#6 is set to 12
============
2)

Portamento

*** This control change is not supported by all MIDI devices

Portamento is a smooth “glide” from one note to another (rather like a glissando played on a trombone).
1) Set CC#5 to 0–127, which controls the length of time taken to perform the portamento (0 is fastest, 127 is slowest),
2( Set CC#84 to 0–127 which determines the distance of the portamento (values below 60 start below the note, values above 60 start above
the note; the precise interval depends on the MIDI device).

So you must first “set up” the portamento effect with a CC#5 message, and then attach the CC#84 message to the note on which the portamento occurs.

---The problems Ive had with the above is that it simply does nothing, so it must not be supported, in my equipment.

Again, Any help will be GRATEFULLY appreciated!

[kayj_prod]

It seems to
me that you just need to know how to score this- presumably to print or hand to another musician.
My work flow is to produce a sequence that sounds right first. I then adapt this and save as another version prepared as a score. Adapting means far harsher quantisation than sounds musical, correcting note lengths to simplify reading and re-writing pitch bends/gliss as two start/end notes.
It's a chore, but the only way to produce a good score. I use Sibelius for my scoring though sequencer packages can do a reasonable job these days.
A glissando looks like two notes with a diagonal line between usually saying gliss underneath.

[highlander2]

It seems to
me that you just need to know how to score this- presumably to print or hand to another musician.
My work flow is to produce a sequence that sounds right first. I then adapt this and save as another version prepared as a score. Adapting means far harsher quantisation than sounds musical, correcting note lengths to simplify reading and re-writing pitch bends/gliss as two start/end notes.
It's a chore, but the only way to produce a good score. I use Sibelius for my scoring though sequencer packages can do a reasonable job these days.
A glissando looks like two notes with a diagonal line between usually saying gliss underneath.

Thanks so much for replying--

but no, I know the notation for it, and how to score it ( Im a Sib user also:) but am actually trying to hear the result in a sequencer, (and record it) and produce it via midi, and not have it sample library dependent.

The sampled libraries I have dont have reg. glisses:)

Thanks so much:)

Bob

Hi Bob ,
Which solo sampled string instrument are you referring to ?
There are limitations with some Virtual Instruments responding to Standard Midi Continuous Controllers , particularly Pitch Bend , however no conclusion or advise can be offered unless you specify the Virtual Instrument.
It is very refreshing to see the language of Midi being articulated correctly in this forum.

Hi..thanks so much for replying..its for a Violin, and I'm using Ircam Solo Instruments, and X sample Solo strings (as Kontakt 2 is needed for ths SIPS scripts mentioned below.)

Neither have samples of regular glisses, so Im attempting to do it thru midi.

Since posting I was able to get around the pitch bend limitation and increase it to an octave (or more, if necessary) via the SIPS Super Bender Script-

http://nilsliberg.se/ksp/scripts/sips/sips.htm

(The portamento script there works REALLY nicely also:).and I've emailed the author for help also)

But Im still having problems getting the corect desired first and last note, using these ranges

http://www.dosguys.com/RA-guitar/!!...ysEx--Chart.htm

And Im producing these PB curves with "Create Continuous Data" in Digital Performer 5.13.

Any dieas?


Thanks so much for your reply and kind words:)
Bob

This post has been edited by highlander2: Tue 20 Oct 2009, 13:14