Effects tab

  1. Signal Routing
  2. Common Controls
    1. Power button
    2. Limit to FX tracks checkbox
    3. Preview button
    4. Default button
  3. Limiter
    1. Master gain
    2. Device volume (iOS only)
    3. Vu meters
  4. Reverb
    1. Reverb size
    2. Reverb brightness
    3. Reverb stereo spread
    4. Reverb mix (wet/dry)
    5. Reverb style
    6. Reverb quality
  5. Delay
    1. Timing buttons
    2. Timing switch
    3. Feedback
    4. Delay mix (wet/dry)
  6. Equalizer
  7. Amplifier
    1. Overdrive
    2. Style
  8. Filter
    1. Resonance/Frequency display
    2. Filter type switch
    3. Filter accelerometer axis
    4. Accelerometer sensitivity
    5. Snap back checkbox
    6. Record button

1. Signal Routing

Tracks can be set to one of three states as shown below, general FX (grey), general plus limited FX (blue) and no FX (blue with slash).

In short, effects with FX enabled act only on tracks that have FX enabled. The other effects are applied on all tracks except the ones with the crossed out FX icon.

  • Tracks are treated separately depending on the FX bus setting.
  • Effects are always applied in the following order: pitch bend, amplifier, delay, equalizer, filter, reverb.
  • If the amplifier effect (overdrive) is enabled, it’s applied to the tracks pre volume-fader in order to have a high overdrive even on quiet tracks.
  • All effects with the FX checkbox enabled are applied to the mix of all tracks with FX checkbox.
  • This is added together with the rest of the tracks (those without FX bus setting)
  • The rest of the effects are applied to the mix (those effects with the FX checkbox disabled)
  • The tracks with a no-FX setting are now added to the mix.
  • The limiter is applied, according to the master gain.

2. Common Controls

2.1 Power button

Switches the effect on or off.

2.2 Limit to FX tracks checkbox

Puts the effect into the FX bus, meaning that it will be applied only to those tracks which have FX enabled (blue FX icon in the track list). All the other effects are still applied to all tracks after the FX effects are processed.

2.3 Preview button

Identically to the instrument tab's preview button, it plays one or more notes (alternating) with the current instrument.

2.4 Default button

Resets the current effect's settings to the preset values.

3. Limiter

3.1 Master gain

This is not the device gain, instead it controls the gain of the internal limiter.

High values may lead to unwanted volume compression or distortion, low values may not produce the desired volume.

Different volumes may be required depending on your output route (the device's internal speaker, or earphones, or loudspeakers).

In technical terms, this setting is required because if all playing instruments are mixed (added up), the resulting values will in most cases be much higher than 65535 (the 16 bit border) and clipping would occur. The limiter uses a smooth mathematical function (a curve) to compress larger numbers into the 16 bit range. The master gain slider controls the slope of this curve.

3.2 Device volume (iOS only)

Brings up a popup with a slider which has the same function as the iPhone's hardware volume buttons.

If the iPhone's internal speaker is used (not recommended), be sure not to turn it all the way up. If you connected external speakers, set this slider to maximum and control the volume via the speaker's volume controls for the best audio quality.

3.3 Vu meters

These gauges indicate the current output level of each of the stereo channels. They represent an 'average' volume level and are not 'peak' meters which show instantaneous peaks.

4. Reverb

Reverb simulates a room of a certain type (Hall/Canyon/Room) and size. If stuttering occurs during playback, decrease the reverb quality.

4.1 Reverb size

Controls the size of the sound space. In larger spaces, the reverb is audible for a longer period of time. The size also depends on the selected reverb style, e.g. the largest room reverb is smaller than the largest canyon reverb.

4.2 Reverb brightness

Low brightness gives the impression of a darker room (using a low pass filter), while maximum brightness leaves the reverb unfiltered.

4.3 Reverb stereo spread

Controls the perception of stereo wideness of the reverb space. In technical terms, this slider sets the delay between the reverb reaching the left and the right channel.

4.4 Reverb mix (wet/dry)

The mix slider controls the relation of the dry sound (the original, without the effect applied) and the wet sound (the effect's result).

4.5 Reverb style

Selects the type of reverb (room, hall, canyon). Each style uses a different algorithm, thus the size slider has a different effect for each style.

4.6 Reverb quality

Reverb requires a lot of processing power. In order to prevent playback stuttering on older devices or with complex songs, decrease the reverb quality. In technical terms, the reverb algorithm stays the same but the number of filters used in the reverberation filter chain is decreased.

5. Delay

A delay repeats the original sound in a certain time interval set by the timing buttons/switch and the song tempo. The result is then fed back into the delay, resulting in many repetitions.

5.1 Timing buttons

The selected note length will define the time interval of the delay, together with the song tempo.

5.2 Timing switch

Dotted timing is 50% longer, triplet timing is 33% shorter.

5.3 Feedback

Controls the gain of the feedback. Low values will limit the effect to just one audible repetition, high values will make the total delay duration very long.

5.4 Delay mix (wet/dry)

The mix slider controls the relation of the dry sound (the original, without the effect applied) and the wet sound (the effect's result).

6. Equalizer

The 3-band equalizer has fixed frequencies at 800Hz and 5kHz. Tap or move anywhere in the 3 areas to set the gain of bass, middle and treble tones. The range is -10dB to +10dB, the volume is automatically adapted to avoid clipping.

7. Amplifier

The amplifier simulates overdrive by clipping the sound. It is a pre-fader effect, thus allowing high overdrive even if a track‘s volume is quiet.

7.1 Overdrive

Controls the amount of distortion, i.e. the input gain for the amplifier.

7.2 Style

Changes the mathematical function, resulting in a different timbre.

8. Filter

The filter effect is a resonant low-, high-, or band-pass filter. The cutoff frequency and the resonance can be set by moving the crosshair, or by tilting the device if the accelerometer is enabled. The filter track in the Track Editor holds the recorded events (which can be deleted there).

For synth sounds and drum kits, this is a very useful effect. Enable the accelerometer control, switch to the keyboard tab and play or record something while gently tilting the device from one side to the center. A commonly used effect is, with the filter type set to low pass, changing the cutoff frequency from low to high, while keeping the resonance low.

8.1 Resonance/Frequency display

The crosshair indicates the current values of the cutoff frequency (x axis) and the resonance (y axis). Move the crosshair to change the values. This can also be performed while recording.

Beware: high resonance values may lead to unpleasantly loud and high tones.

8.2 Filter type switch

The filter type defines how the cutoff frequency influences the sound.

  • Lowpass: All frequencies above the selected cutoff frequency are dampened (attenuated). The sound remains unchanged if the crosshair is in the lower right corner.
  • Highpass: The effect behaves inverse to the lowpass. All frequencies below the selected cutoff frequency are dampened. The sound remains unchanged if the crosshair is in the lower left corner.
  • Bandpass: Frequencies above and below the selected cutoff frequency are dampened. The sound remains unchanged if the crosshair is at the bottom center.

8.3 Filter accelerometer axis

If the accelerometer is enabled, tilting it in any direction changes the cutoff and the resonance. The sound remains unchanged if the device lies flat on a surface.

  • X+Y: Tilting along the x axis changes the cutoff frequency, while the y axis changes the resonance. Starting from the centered position, all 4 quadrants are symmetrical, i.e. tilting the device to the far left has the same effect as the far right.
  • X: Filter and cutoff frequency are both changed if the device is tilted in the x axis.
  • Y: Filter and cutoff frequency are both changed if the device is tilted in the y axis.

8.4 Accelerometer sensitivity

With the sensitivity set to low, the device needs to be tilted almost 90 degrees to achieve the maximum effect. At high sensitivity, small movements are sufficient to set the filter values to maximum.

8.5 Snap back checkbox

If snap back is enabled and the crosshair is moved, it snaps back to its original location after you release it.

8.6 Record Button

This replicates the record button on the Keyboard & Drum Pad Tab. Click once to start recording and again to stop. The purpose is to avoid the need to swap between tabs when recording Filter automation.