"RampTremCho" (U): The tremolo ramps in as picking dynamics increase. THe ducker is used to simulate a RAMP waveform which is no available on the 2101. Chris Sherwood 12/13/1996. SAP Creating a Ramp Wave Tremolo Effect: [Nov 6, 1996 - Jim Wintermyer] A few weeks ago I posted a patch I called the "square-wave" tremolo (see diagram in section above). After playing with it some more, I found that you can get some interesting effects by playing with the ducker parameters. In particular, you can get a ramp or sawtooth type effect where the sound swells during each cycle of the tremolo by setting the ducker attack and release parameters as follows: Attack = 0.00 Release = 0.60 For the opposite effect, use: Attack = 0.60 Release = 0.00 These numbers work with the original tremolo speed settings I posted. Adjust to taste. Link to Jim's original Post. Link to Chris Sherwood's patch (ramp-tremmed chorus). From: Chris Sherwood[SMTP:chrisshe@microsoft.com] Sent: Wednesday, November 13, 1996 2:32 PM To: 'gsp-users@portal.com' Subject: FW: PATCH: Ramp-Tremed Chorus # re-submitted with better line-wrap (sorry... sorry). You must wrap the # diagram yourself -- Chris # Here's a new clean patch requiring a user, single SDISC algorithm # # Patch: Ramp-Tremmed Chorus # Author: Chris Sherwood (chrisshe@microsoft.com) # Guitar: Fender Stratocaster Plus, S/C Lace Sensor P/Us # # DESCRIPTION: This is a tremelo patch that is set up with a ducker # after the tremelo. The purpose of the ducker is to cause the tremelo # to slowly ramp in after a loud enough signal (threshhold) triggers it. # I was inspired to create this when I was playing a tremelo patch and # wished that the tremelo would fade in much like the vibrato slowly # fades in on many synthesizer patches. The GSP doesn't have an # mplitude envelope, but the ducker serves this purpose just fine. This # patch also has a 4-Phase chorus in it ; this is set up in an interesting # way in the respect that 2 of the 4 chorus outpus are ducked with the # tremelo, the other two are routed around (see diagram below) # # # Algorithm diagram (view in monospace font, such as courier) # # ,-----, ,------, ,------, ,------, # L --o--| 4 | | St | | St | | 4x2 | # | | Ph +-------+ Trem +-----+ Duck +-------+ Mix +--# L # | | Cho +-------+ +-----+ +-------+ | # | | +----. | | ,--+ | ,----+ +--# R # | | +--. | `------` | | | | ,--+ | # | | | | | | `------` | | | | # | `-----` | | | | | `------` # | | '------------|------------, | # | '--------------|--------------, # '--------------------------, # # # PLAY NOTES: The idea here is that with the correct threshhold, # the ducker should trigger when you strike a strong enough strum or # pluck. At that point, you will hear the guitar signal with no tremelo # (it will be ducked out). Then, the tremelo will slowly fade in. This is # very much like the vocal vibrato qualities of many singers. # # TWEAK NOTES: This program will react differently for everyone # depending on your playing style and your guitars output (which will # effect the ducker trigger). The best way to adjust the system for the # ducker (how hard you have to spank your guitar to trigger the slow- # fade in of the tremelo) is with the duckers Threshhold' parameter -- # close to 0 dB requires a stronger strike to trigger, farther from 0 # (a large negative number) causes the ducker to trigger more easily. # Another important parameter is the duckers Release parameter, # which dictates how quickly the tremelo should slowly ramp/fade-in. # Lastly, the since I couldn't turn the chorus on or off without losing # all output, the chorus depth is a good parameter to have control over. # set up these three params as Function keys: # # FN1 == Depth (chorus depth) # FN2 == Thresh (ducker threshhold) # FN3 == Release (ducker release) # INT == Tremelo Speed (min=2.50, max=8.00) # # HEADER # GSP-2101 # Device ID 3.00.00.a # Rom Version Ramp-Tremed Chorus # Patch Name U1 # Algorithm (any user # is fine) # PATCH PA