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Tascam
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GVI
User Manual
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Tascam GVI User Manual

Owner's Manual
QuickEdit and GigaPulse Addendum
100206
CHAPTER 12: QUICKEDIT VIEW........................................................................................................ 3
Instrument Select Drop-Down Menu.................................................................................................... 3
Undo/Redo............................................................................................................................................ 3
EDIT MODES AND SELECTIONS.................................................................................................... 4
QUICKEDIT ARTICULATION TABS............................................................................................... 7
GVI AMPLITUDE/PITCH TAB........................................................................................................ 11
GVI FILTER TAB.............................................................................................................................. 16
GVI LOOP TAB................................................................................................................................. 21
QUICKEDIT WAVEFORM VIEW................................................................................................... 22
WAVEFORM VIEW ZOOM TOOLS........................................................................................... 22
WAVEFORM DISPLAY WINDOW............................................................................................. 23
CHAPTER 13: GIGAPULSE VIEW...................................................................................................... 24
GIGAPULSE IN THE MIDI MIXER ................................................................................................ 25
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CHAPTER 12: QUICKEDIT VIEW
QuickEdit is a powerful tool that provides easy access to instrument/dimension specific synth parameters like attenuation, pan, tuning, envelopes, filters, LFO’s, and loop points. Edits made in QuickEdit are non-destructive, meaning they do not alter the original GIG files. Instead, instrument specific QuickEdit modifications are stored and recalled by saving either a preset or GSI file.
The QuickEdit view can be opened using either the global EDIT button located on the GVI navigation toolbar or the green, channel specific EDIT buttons located on MIDI Mixer
channel strips that contain loaded instruments.

Instrument Select Drop-Down Menu

Once in the QuickEdit View, it is possible to select any instrument currently attached to a MIDI channel or Stack Sub-channel using the QuickEdit instrument select drop-down menu. The menu is located just beneath the GVI File Management toolbar and above the waveform display. Only one instrument may be edited at a time.

Undo/Redo

GVI allows ninety-nine levels of Undo/Redo. The Undo/Redo buttons are located just above the Zoom Bar navigation buttons.
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EDIT MODES AND SELECTIONS

In a Giga instrument, every keyboard region has its own parameter settings for envelopes, LFOs, filters, and the like. The keyboard regions, each covering one or more keys, are displayed in the horizontal strip just above the virtual keyboard. You'll notice that one of the regions is always highlighted in bright yellow. This is the region whose parameters are displayed in the upper sections of the Editor. When you change a parameter, you'll be modifying this region plus any other regions highlighted in dim yellow.
Keyboard regions are further subdivided into splits. For example, a piano might be sampled at 12 different velocity levels, yielding 12 velocity splits, each with its own audio sample and its own parameter settings. The same piano might have been sampled with the sustain pedal in both the up and down positions, for a total of 24 splits per region. In fact, if the samples are stereo, there are even separate parameter values for the left and right sides, making a total of 48 complete parameter sets per region. To show which split you are currently editing, the instrument's "dimensions" are displayed as horizontal strips just below the editing tabs. In the example above, you'd find three strips, for velocity, sustain pedal, and stereo. (This is only an example: every Giga instrument has its own structure.) One segment in each strip is highlighted in bright yellow to indicate the split whose parameters are currently on display. Again, when you change a parameter, you'll be editing this split plus any other splits highlighted in dim yellow (more about this below).
Several buttons just above the keyboard influence how the selection process works:

MIDI SELECT

When this button is enabled (green), MIDI note on and controller messages will change the current region and split selections. This can be a convenient way of selecting a particular split for editing. But if you're playing a piece, you may want to disable this feature, to avoid a frenzy of screen updates which may tax your CPU.
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EDIT MODE

This affects how changes are applied when more than one region or split is selected for editing.
Absolute:
When you change a value in the QuickEdit, every selected (bright or dark yellow) region and split is set to exactly the value shown. If the selected regions were originally set to various unique values, they'll all be changed to the same value for any parameter that you edit.
Relative: In this mode, every selected split is changed by an offset. For example, if you change and LFO rate from 4 Hz to 6 Hz, every selected split gets a 2 Hz increase.
Proportional: This similar to Relative mode but uses multiplication rather than addition. If you change an LFO rate from 4 Hz to 6 Hz, every selected split gets a 50% increase.
Note that if a relative or proportional edit tries to push a parameter outside its legal range, the parameter will be set to its minimum or maximum legal value.

KEYBOARD SELECT DROP-DOWN MENU

We noted above that a GVI instrument can contain a large number of regions, each subdivided into many independent splits. Often you will want to apply an edit globally across an entire instrument. At other times, you may need to edit only a particular region or group of regions. The "Keyboard Select" setting helps make either kind of editing possible. The options are:
All regions: In this mode, all of the keyboard regions are locked into the selected state. Clicking on any keyboard region will make it the current region, highlighted in bright yellow. But all other regions will retain the dark yellow highlight, and any edits you make will always be applied to all regions across the keyboard.
Individual regions: In this mode it's possible to select any set of keyboard regions you like. Click on a region to select that region. Click while holding down the CTRL key to add individual regions to the selection, or click with the SHIFT key to select a range of regions. Note that while this mode allows more detailed editing, it requires you to be aware of the region selection at all times.
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DIMENSION SELECT DROP-DOWN MENU

This is similar to the Keyboard Select menu, but it governs the selection of splits within each keyboard region, as displayed in the dimension strip area just below the editing tabs. The options are:
All splits: Edits will always be applied to every split within a region. In the dimension selector strips, you can click any split to give it the bright yellow highlight and display its parameters. But all other splits will retain the dark yellow highlight, indicating that they will also be modified if you change a value.
Stereo pairs: In this mode, splits can be selected in any combination. As an illustration, recall our piano instrument with the 24 splits per region (12 velocity levels times 2 sustain pedal positions). In "Stereo pairs" mode you could, for example, select only the three loudest velocity levels for editing, by highlighting the last three segments in the velocity strip. The sustain pedal strip would control whether you're editing the three loudest pedal-up splits, the three loudest pedal-down splits, or both (six splits in all). To select multiple splits in any dimension, click in that dimension strip while holding down the CTRL or SHIFT keys.
Individual splits: When viewing a stereo instrument, you'll notice an additional dimension strip labeled Stereo". Stereo GVI instruments have independent parameter settings for the left and right sides of every split. In practice, it's rare to find any parameter set differently for the two sides of the same split, so edits are normally applied to both sides simultaneously. If you do need to apply an edit to only the left or right side of a region, "Individual splits" mode will let you do it. We suggest you use this mode only when you absolutely need to - otherwise you may find yourself applying more general edits accidentally to only one stereo channel.
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QUICKEDIT ARTICULATION TABS

GVI GENERAL TAB

Volume: The Volume knob simply attenuates a region’s playback level between 0 and 98 decibels. A Volume value of 0.0 indicates that the region will play back un-attenuated.
Pan: This setting sets the pan position by a value from -64 (hard left) to +63 (hard right).
Tune: The Tune knob adjusts a region’s fine-tuning between – 49 and + 50 cents.
Self-mask: When checked, this causes high velocity notes to terminate lower veloc ity voices.
This feature conserves polyphony and should be tried on all samples with percussive attacks and releases (pianos, guitars, cymbals, etc.).
Sustain Defeat: This setting enables or disables the sustaining action of the sustain pedal. This allows the sustain pedal to simply be used as a dimension switch without sustaining the samples.
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VOLUME MODULATION SECTION

Controller Drop-Down: This menu allows you to assign a MIDI
continuous controller for real-time volume attenuation control.
By assigning the same attenuation controller to groups of related notes or samples, a MIDI controlled sub mix capability can be designed into the instrument so that individual sounds can have discrete MIDI volume control.
Attenuation Controller Invert: This option reverses the MIDI
controller. This is necessary when creating a simple MIDI controller cross-fade layer. Both layers would be set to the same MIDI controller for attenuation but one would be inverted using this parameter. The result would be a cross-fade between both layers.
Attenuation Controller Threshold: This parameter allows you to assign a minimum threshold to the external volume attenuation controller. This is useful for volume crescendo/decrescendo and expressive dynamics. It is very similar to the threshold knob found on controller/volume pedals. For example, this allows a MIDI controller to set the volume from “full volume to soft” instead of “full volume to silent”.

VELOCITY RESPONSE SECTION

The velocity response section specifies how an instrument region’s volume responds to incoming MIDI velocity values. Once you have chosen a basic velocity curve, you can further modify that curve using the velocity range and scale parameters.
Keep in mind that if you are also filtering, the overall volume velocity response is affected by the response of the filter.
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Velocity Curve: There are three general response curves available: Linear, Non-Linear, and Special. See the diagrams below for a graphical representation of each curve class.
Linear Curve:
Non-Linear Curve:
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Special Curve:
Velocity Range: Use the velocity range slider to select one of five velocity response offsets for
the specified velocity response curve (Linear, Non-Linear, Special). The velocity range is set from High to Low, High producing the largest dynamic range (softer) and Low producing the smallest dynamic range (louder).
Scale: This knob works in conjunction with the Velocity Range setting to give even finer control of the velocity response curve. Find a Dynamic Range setting that works best and then use this to fine tune the feel.
Release Curve: The Release Curve setting affects the release note decay time based on the Note On Velocity. This becomes more noticeable with longer Amplitude Envelope release times. Basically, this feature allows you set longer or shorter release times depending on how hard you hit the note.
Release Range: Use the Release Range slider to select one of five velocity release range offsets for the specified Release Curve (Linear, Non-Linear, Special). Like Velocity Range, the release range is also set from High to Low, High producing the most dynamic release curve, and Low producing the least dynamic release curve.
Release Trigger Decay: This parameter determines the rate of attenuation for the amplitude of an existing release-triggered sample. In other words, when using a Release Trigger dimension, this parameter allows you to control the volume of its playback depending on how long you hold down a key before releasing.
With slower decay values, you can sustain a note longer and still get the release trigger sample to play at full volume.
With faster settings, the release trigger sample will be quiet or even silent
unless you release a note quickly.
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