TS404 Bassline Synthesizer

The TS404 is a unique bass-line synthesizer that can resemble the sound of many classic synthesizers, such as Roland'sTM TB-303TM, but can also create many distinctive, 'TS404-specific' sounds also. TS404 contains two oscillators, cut/res filter, envelope, LFO and a distortion unit. Note that the TS404 Channel Settings page appears only in channels that hold a TS404 generator.

Opening the TS404: Drag a preset from the Browser > Channel presets > TS404 folder onto the Channel window.


The TS404 synthesizer is fairly simple by today's standards, so it is a great instrument with which to learn the basics of 'subtractive' and FM synthesis.

1. Oscillators Section (OSC 1 & OSC 2)

An oscillator is a waveform generator, with specific waveform shape (choose between one of the 5 options). The sound of the oscillators is then filtered to create the characteristic TS404 sound. TS404 has two oscillators (OSC1 & OSC2). The 'custom' option '?' allows you to load a short wave file to used by the oscillator. FL Studio comes with several sample shapes located in the "TS404 Shapes" folder, found in the Browser. You can also change the custom shape using the sample bank field in the Sampler Channels Settings.

2. Oscillators Mixer Section (OSC 1+2)

3. Envelope

Applies an envelope to the filter and volume of TS404. The envelope behaves much like a standard ADSR envelope, with some additional properties (sustain hold and gate).

4. Filter

Applies cutoff & resonance filter to the TS404 sound. Choose from among several types of cutoff and resonance filters to be applied to the Oscillators. Filter mode buttons are located at the top of the filter panel.

5. LFO Section

Controls an LFO that can modulate one of the following properties: volume of the oscillators (OSC), resonance (RES), cutoff (CUT) or pulse width of the first oscillator (PW). The buttons for selecting the modulation target are located at the top right corner of the LFO panel. You can also select a shape for the LFO (sine, square and triangle). The buttons are at the top left corner of the LFO panel.

6. Distortion Section

Choose between two distortion modes (A & B buttons, located above the distortion panel).