28 TASCAM TA-1VP(+1 or –1) signal levels. These levels represent the “rails”of the amplifier. As the Warmth Amount is increased,the amplification is increased. Any regions of the signalthat increases beyond the rails generate distortion.(But instead of the usual ugly digital clipping, they aredistorted the same way the tube pre-amp would distortthe sound.)Because the maximum drive is limited to +12 dB, usingthe Tube Saturation model requires the original signal tobe at a level greater than –12 dB. If this is not the case, youshould adjust the Input analog Trim control (in the SetupMenu) to increase the level of the sound. (Be careful thatInput Level is not increased so much as to cause digitaldistortion.) It may be necessary to go back and forthbetween Warmth Amount and Input Trim a few times toget exactly the effect you want.NOTEIf your audio was recorded at an exceptionally low level,it may be that even maximum Input Trim and maximumWarmth Amount will still not result in a level high enoughto generate distortion. In that case, either re-record youraudio at a higher level (if possible) or use an availabledigital waveform editor to digitally increase the level(keeping in mind that this may negatively affect the signalquality).If you want to add tube warmth without otherwiseaffecting your sound, set both the Source Mic andModeled Mic to Bypass.MIC MODELER ON ButtonªWhen this button is lit, the MIC MODELER module isactive. When it is not lit, the module is bypassed. Pressingthe button toggles its state. The Mic Modeler On/Offfunction can also be controlled by MIDI and/or by afootswitch.AUTO-TUNE MODULEScale PageªPressing the SCALE button brings up this page.You tell Auto-Tune exactly which notes you want tocorrect on the Scale Page:Ch:CC#DD#EFF#GG#AA#B:This page allows you to specify the scale notes to whichAuto-Tune tunes the input sound.The TA-1VP comes with 25 preset scales: Chromatic, 12diatonic major and 12 diatonic minor. To select a presetscale, use the cursor buttons to move to the scale namefield in the top left of the screen and turn the Data Knobto select the desired scale. Note that "Ch" is short for"Chromatic", the scale with all 12 notes.In addition, you can customize any of the provided scalesand save it as part of your preset. To modify a scale, pressthe Á cursor button to move the cursor to the bottomrow of this screen, then use the cursor buttons to move tothe desired scale note and turn the Data Knob to set it toone of the following three states:Tune (i.e., the note name appears in the display, butthe field under the note is blank): When the input isnear a note set to Tune, Auto-Tune will retune theinput to that note.Bypass (i.e., the note name appears in the display andan “*” appears in the field under the note): When theinput pitch is close to a note set to Bypass, the outputremains uncorrected.Blank (i.e., the note name disappears from thedisplay): A note set to Blank will be omitted from thescale. For example, setting C#, D#, F#, G#, A# to Blankcauses a C Major scale to remain. In that case Auto-Tune would always retune the input to the closestnote of the C Major scale.As an example, the following settings result in a D Majorscale with no pitch corrections applied to F# and C#:D : C#D E F#G A BMa: * *Why set Scale notes to “Blank”?To understand why it is sometimes necessary to seteven correct scale notes to ”Blank,“ let’s look again at theexample from Chapter 2.10.0 10.5 11.0D3B2C # 3ORIGINALPERFORMANCECORRECTEDBY TA-1VPThis phrase is in D Major and, if all the pitch errors wereno greater than about 49 cents, would work fine with astandard D Major scale (D, E, F# , G, A, B, C# ). However, thepitch error of three semitones at the end of the last noteis so large that with B and C# present in the Scale, as thepitch fell, Auto-Tune would see first C# and then B as thetarget pitch and therefore allow the error to remain. WithC# and B removed from the Scale, Auto-Tune continuesto see D as the target pitch for the entire duration of the5 – Operation