Fx are audio effects that can be applied to your song, up to two Fx simultaneously. Using Return Tracks, you can assign an FX only to certain tracks or have it apply to the entire song using the Master Return Track. Tweak your audio Fx during playback to test your options.

To open the Fx panel, select the FX icon in the Toolbar. When working with Fx, you generally work with the Mixer Panel as well to take full advantage of Return Tracks.

DrumTrackHD's Mixer and Fx Panels
DrumTrackHD Mixer and Fx Panels

You currently have these audio Fx to choose from:

FX Panel

To select an Fx, drag a square icon on the left and drag it to the holding panel to the right. Above, we have selected Delay and Saturator. You can have up to two effects simultaneously.

To remove an Fx, click and drag one out of the holding area.

Fx Common Options

To the far left of each Fx, you can control it's on/off status, select a return track and adjust the wet/dry slider.

  • On/Off: Toggle to turn the Fx on and off.

  • Master/A/B Return Tracks: Applying Effects To Return Tracks

Return Track Knobs When working with Fx and Return Tracks, you use the two round, black Return Track Buttons located under each track slider in the Mixer Panel..

  • The top row of knobs assigns tracks to Return Track A;
  • The bottom row assigns tracks to Return Track B.

Each Track's Return Track default value is 100%, as shown above, but each track can modulate the amount of effect applied to it by selecting the knob and dragging around it. Touch and drag the knob to 0% to remove a Track from the Return Track.

Each Fx has a 3 way toggle (on the left) that assigns the sound effect to either Master, A or B Return Tracks. The Fx can be applied to all tracks using the Master Return Track or only to tracks assigned to Return Track A or B.

For example, to omit certain tracks from your Fx, set the top knobs to 0% for a few tracks, and in your Fx, select the letter A.

  • Wet/Dry Slider: Controls the amount of Fx sent to the Return Tracks.



Delay is an audio effect which records an input signal and plays it back after a period of time. The delayed signal may either be played back multiple times, or played back into the recording again, to create the sound of a repeating, decaying echo.

To the far left, you can turn it on/off, select a return track and adjust the wet/dry slider. (see Common Options for more details)

  • Beat Quantization: The musical note button toggles between delay time measured on beat tempo fraction rather than a fixed amount of time.

  • Stereo Locked: The button below toggles between identical values for left and right channels (by taking the values of the left channel) or separate left/right channel values.

  • Delay: Either in milliseconds or in faction of beat tempo (see beat Quantization above).

  • Feedback: Quantity of processed signal that is reinjected in the Fx.



Bitcrusher is a digital audio effect, which produces a distortion by the reduction of the resolution or bandwidth of digital audio data. The resulting quantization noise may produce a “warmer” sound impression, or a harsh one, depending on the amount of reduction.

To the far left, you can turn it on/off, select a return track and adjust the wet/dry slider. (see Common Options for more details)

  • Bit Resolution: A number stored digitally has a resolution given as n bits, where there are 2n possible values of the number. If one reduces the number of bits used to store the number, the number of possible values of the number is decreased, and thus the resolution decreases, leading to distortion. For example, a standard CD has a resolution of 16 bits, thus there are 216 possible values for any given part of the musical waveform. If this is reduced to approx. 8 bits, distortions can be noticed, reducing the quality. These distortions add to the original overtone in such a way that the wave shape becomes angular. This can produce a “warmer” sound impression than the original waveform, especially if the wave is rounded off in certain ways. Often this is used with techno or electronic music consciously, without regard to fidelity.

  • Down Sampling: The number of times the sound is sampled per second, expressed in kHz (ex 44 kHz).



A LowPass Filter that lets only low frequencies pass with a resonant filter below the user-defined frequency threshold.

To the far left, you can turn it on/off, select a return track and adjust the wet/dry slider. (see Common Options for more details)

  • Cutoff: The frequency threshold above which no sound passes.

  • Resonance (Q Factor): The tendency of an oscillator to oscillate.



Saturation is a satisfying, fuzzy overloaded signal which displays natural compression and limiting characteristics.

To the far left, you can turn it on/off, select a return track and adjust the wet/dry slider. (see Common Options for more details)

  • Shaper Amount: Amount of saturation.


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