Akai MPC5000 Specifications download pdf (Page 151)

137

PWM

PWM stands for Pulse Width Modulation. This waveform is special, in that it is a Pulse wave

whose shape is hard-wired to LFO 2. This gives this waveform a range of sounds from a classic

warbling tone, to a buzzing, harsh sound, rich with overtones.

When this wave is selected, an additional knob becomes available called 'DEPTH'. This knob

controls amount of control LFO2 has over the width of the PWM oscillator.

'Env1> VCO1'

This knob sets how much effect envelope 1 will have on the pitch of VCO1. The corresponding Q-Link

[AFTER] button toggles whether the effect of the envelope will be positive or negative.

This is most commonly used in conjunction with the 'Osc XMod' control.

'SEMI/FINE'

Selecting this control will toggle the 'TUNE' controls range.

When set to 'SEMI', the 'TUNE' control adjusts the tuning of each oscillator

in semitones. Each VCO can be tuned +/- four octaves by semitones.

When set to 'FINE', the 'TUNE' control adjusts the tuning of each oscillator in +/- 100% of one semitone. This is useful for

slightly detuning oscillators to fatten up the sound, or add a chorusing type effect.

'Lfo> VCO1'

This knob sets how much effect the LFO will have on the pitch of VCO1. This is useful for use in

conjunction with the 'Osc XMod' control.

'SYNC'

Selecting this checkbox forces the frequency of VCO 1 to match the frequency of VCO 2 by locking their

waves phase when the waves begin their rise and fall during their periodic cycles. When two sound

waves have their phases synchronized, their cycles begin at exactly the same instant and stay locked

throughout the cycle.

As the oscillators are tuned to wider intervals, a new set of harmonics are created resulting from two fundamental waves –

with significantly different frequencies – being locked in phase: the waveforms start their cycles at the same time. This can

result in harsh, distorted, waveforms perfect for aggressive dance-type synth leads, basses and effects.

'VcoLvl'

This field controls the volume of the selected oscillator in each column.

Tip: When VCO2's level is set to zero, the full amount of the oscillator is sent to VCO1, but the output is muted. This

allows for the VCO2 to be silent, but still available for Sync and Ring Mod type sounds.

'RMod'

This check box turns on the Ring Mod. The Ring Mod is another classic analog tone modifier. It generates a series of sum-

and-difference overtones from two input signals, in this case VCO1 in to VCO2, resulting often in a

metallic, distorted character that is frequency dependent.

Vco XMod

This parameter controls the amount of oscillator cross modulation that is applied to VCO2 from VCO1. Cross modulation,

also called FM synthesis, is when the output of VCO1 is used to modulate the frequency of VCO2. From vibrato-like pitch

variations, to harsh clanging metallic noises, to bell type sounds, a broad range of sound is possible

with cross modulation.

 VCF

This page is where in-depth controls for the filter can be edited. To enter the VCF page, do the following:

01. From the MAIN screen, select a track that uses a synth

program

You can also create a new synth program as detailed in the previous section.

02. Press [MODE] and [PAD 6] (PROGRAM)

This will bring you into PROGRAM mode where you can edit different parameters

of your program.

Note: you can also use the [SYNTH] button as a shortcut to jump to the

last Synth program you edited.

03. Press the [F3] (VCF) button.

This will display the VCF page. Here, the filter can be edited. Each parameter can be selected by using the [CURSOR] to select each field and

turning the [DATA] wheel.

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Akai MPC5000 Specifications Page 151

Comments to this Manuals

Akai MPC5000 Specifications Page 151

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