iceGear Instruments

Mersenne - Melodic Percussion Synthesizer

Basic Operation

How to change which octaves are shown.

Knob mode

Finer Resolution for Dragging

How to reset the parameter to the default value.

Global Settings

  • MIDI Learn
    1. Enter MIDI Learn Mode by tapping the MIDI Learn button.
    2. Adjust the on-screen control you wish to map.
    3. Adjust the slider or knob on your MIDI controller. (MIDI CC)
    4. Repeat above steps as required.
  • Settings

    • Audio Buffer Size

      The audio buffer size affects the amount of latency and the CPU usage. Higher setting will reduce clicking noise at high CPU usage, but also cause more latency.

    • Background Audio

      If background audio is enabled, this app will consume battery power significantly even if other apps are running or if your screen is turned off.

    • Maximum Polyphony

      Lower maximum polyphony setting will reduce the CPU usage.

    • MIDI Channel

      When the OMNI is OFF this app will receive only on the currently selected channel.

    • MIDI Mapping
    • Knob Mode
    • Keyboard Size
    • Restoring the factory presets
    • Tune
    • Transpose
    • Tempo

  • Volume
  • Glide
  • Arpeggiator ON/OFF
  • Keyboard Hold ON/OFF

Program

A sound you create is called a “Program". It dose not include the setting of Arpeggiator, Volume, Glide and MIDI mappings.

Program Browser

Arpeggiator

  • Program: defines which of the input notes is triggered

    The program row can be used when the style is set to "Program". It specifies which of the held notes on the keyboard will be played.

    Example: When you hold down C3,E3,G3,A3,C4 keys, C3 is 1st note, E3 is 2nd note, G3 is 3rd note. A3 is 4th note. C4 is 5th note.

Synthesizer Parameters

Tone A/B

3 operator FM synthesis engine

Pitch

  • Pitch: Adjust the pitch of oscillator in semitones.
  • -1 Octave: This is an octave drop switch.
  • Detune: Adjust the fine tuning of oscillator.
  • ENV: Adjusts the depth of modulation applied by the ENV.
  • Decay: Adjusts the decay time of pitch envelope.
  • LFO: Adjusts the depth of modulation applied by the LFO.
LFO

  • Rate: Adjusts the rate of the LFO.
Sustain

  • Hardness: Adjusts the frequency modulation depth.
  • velocity: Adjusts the depth of modulation applied by the velocity.
  • LFO: Adjusts the depth of modulation applied by the LFO.
  • Color: Adjusts the frequency modulation ratio.
Attack

  • Hardness: Adjusts the frequency modulation depth.
  • velocity: Adjusts the depth of modulation applied by the velocity.
  • Attack: Adjusts the attack time of FM depth.
  • Decay: Adjusts the decay/release time of FM depth.
  • Color: Adjusts the frequency modulation ratio.
AMP

  • Attack: Adjusts the attack time.
  • Decay: Adjusts the decay/release time.
  • Damper: Adjusts the release time.
  • Level: Adjusts the TONE volume.
  • Velocity: Adjusts how the Amp Gain scales with velocity.
  • Drive: Adjusts the overdrive intensity.
  • Delay: Adjusts a delay time before the sounding.
  • Mute

Noise

Noise generator

Filter

  • Filter Type:
  • Cutoff: Adjusts the cutoff frequency of the filter.
  • Ley (Keyboard Tracking): Adjusts the depth of modulation applied by the keyboard.
  • Velocity: Adjusts the depth of modulation applied by the velocity.
  • ENV: Adjusts the depth of modulation applied by the ENV.
  • Decay: Adjusts the decay/release time.
  • Resonance: Emphasizes the cutoff frequency.
AMP

  • Decay: Adjusts the decay/release time.
  • Damper: Adjusts the release time.
  • Level: Adjusts the NOISE volume.
  • Velocity: Adjusts how the Amp Gain scales with velocity.
  • Mute

Resonator

  • Dry/Wet: Adjusts the mix of dry and wet signal.
  • Pitch: Adjusts the pitch of resonator.
  • Feedback: Adjusts the feedback amount.
  • Drive: Adjusts the overdrive intensity.
  • Level: Adjusts the RESONATOR volume.
  • Decay: Adjusts the decay/release time.

Effects

Chorus

  • On: The effect will be applied if this is on.
  • Dry/Wet: Adjusts the mix of dry and wet signal.
  • Depth: Adjusts the depth of the effect.
  • Rate: Adjusts the rate of the modulation.
  • Spread: Adjusts the stereo image width.
Delay

  • On: The effect will be applied if this is on.
  • Dry/Wet: Adjusts the mix of dry and wet signal.
  • Time L/R: The numbers represent time delay in 16th notes. You can change the tempo setting in the global setting screen.
  • Feedback: Adjusts the feedback amount.
  • Cross: Adjusts the cross-feedback amount.
  • Hi Damp: This setting makes the delay sound softer.
  • Filter (Low Pass Filter)
    • On: The effect will be applied if this is on.
    • Dry/Wet: Adjusts the mix of dry and wet signal.
    • Frequency: Adjusts the cutoff frequency of the filter.
    • Modulation: Adjusts the depth of the modulation.
    • Rate: Adjusts the rate of the modulation.
    • Resonance: Emphasizes the cutoff frequency.
    • Drive: Adjusts the overdrive intensity.
Reverb

  • On: The effect will be applied if this is on.
  • Dry/Wet: Adjusts the mix of dry and wet signal.
  • PreDelay: Adjusts a delay time before the reverb.
  • Time: Adjusts the time it takes for the reverberation to ring-out.
  • Hi Damp: This setting makes the reverb sound softer.