PCM 80 User Guide | Lexicon |
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| Pitch The Resonant Chord algorithms: Res1>Plate and Res 2>Plate each have a |
| Pitch row that contains the parameters for setting and controlling the tuning of |
| the effect's resonators. Each set of parameters is presented separately here. |
| Res 1>Plate Pitch parameters |
| The voice resonators take the audio impulse from a delay voice and “resonate” |
| it at a desired pitch. Until a resonator is assigned a pitch, it does not resonate. |
| The Res1 effect is a “round robin” pitch assign in that pitch changes are |
| individually assigned to one of (as many as) six voice resonators. For example, |
| assume that all six voice resonators are active in the newly loaded effect, and |
| the first pitch assigned is A4. Voice 1’s resonator will be set to the A4 frequency. |
| Assign B4, and Voice 2’s resonator will be set to that pitch. In this example, if we |
| assign four more pitches (D5, G4, A#:Bb4, C5, for example), they will be |
| assigned to the Voice 3, 4, 5, and 6 resonators, respectively. If a seventh pitch |
| is assigned, for example, F3, Voice 1’s resonator will be changed from A4 to F3 |
| (the other resonators remain at the last assigned pitches). |
| Assign |
| This parameter has a range of C0 to G10 (128 pitches) to be convenient for MIDI |
| patching. As the value of this parameter is changed, each “next value” is |
| assigned to the next active pitch resonator of the six possible active resonators. |
| An example might be driving this parameter with a slow LFO to achieve an effect |
| something like strumming the strings of an open piano. |
| Tuning |
| This parameter allows you to tune the A440 reference of the box anywhere from |
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| Active |
| This parameter allows you to define the number of active voice resonators. You |
| can choose from 0 (no resonators active) to 6. Setting the value to 1 will limit pitch |
| assignments to Voice 1’s resonator. Setting the value to 2 will limit the round |
| robin pitch assign to Voices 1 and 2. A value of 6 uses all the voice resonators. |
| A handy feature of this parameter is the ability to mute resonators. For example, |
| you can patch this parameter to a footswitch or pedal, allowing you to drive the |
| parameter value down to 0 at any time, causing the resonators to stop playing |
| their last assigned pitches. You can then immediately drive it back up to the |
| desired number of active resonators. This “clears” the pitch assign for the |
| resonators, so they don’t go back to playing their previous pitches, but rather wait |
| for the next pitch assign to come along before resonating. |
| Unison |
| This is a simple On/Off control. When set to On, pitch assigns will be sent |
| simultaneously to all active resonators. When set to Off, pitch assigns will |
| operate in the round robin method described earlier. This allows you to set |
| multiple delay times for all Voices and allows a single pitch assign (rather than |
| 6 individual assigns) to set all the resonators to the same pitch. The pitch will ring |
| out at 6 different delay times from the input impulse. |