The ES1 and ES2 are virtual analogue synthesizers. The ES1 contains an oscillator and a sub-oscillator, while the ES2 contains three oscillators, which allow you to manipulate the sound of your synthesizer by selecting from different wave forms (sine, saw, triangle and square). Each synthesizer also allows you to choose from a library of presets, including synthesizer leads, bass, strings, percussion and pads (harmonic sounds).
The EMF1 is a 16-voice, frequency modulation synthesizer that specializes in digital sounds like synthesized bells. You can adjust the filters and envelopes to create your own digital sounds, or you can select sounds from the preset library.
The ES E is an ensemble synthesizer with one oscillator. It is especially useful for generating digital strings and warm pads. The ES P offers vintage analogue sounds and is useful for emulating the synthesizers of the 1980s. The ES M is a monophonic synthesizer, or monosynth. In other words, it can only play a single note at a time, as opposed to the polyphonic synthesizers, which play multiple notes simultaneously.
Logic's Amp Modeling effects allow you to add distortion to your guitars or bass by emulating live amplifiers. You can choose between the "Bass Amp" effect and the "Guitar Amp Pro" effect, both of which are accessed from the "Inserts" tabs on your mixer menu.
Logic's Delay effects include Delay Designer, Echo, Sample Delay, Stereo Delay and Tape Delay. These effects allow you to apply a short delay to your chosen instrument. For instance, if you have two identical recordings (one panned to the left, and one panned to the right), and you want to create a surround-sound effect, you can apply a short delay to one of the two recordings to create a slight variation between the left and right channel.
Logic's Distortion effects work similarly to amp modeling, but they are not limited to guitars and bass. You can add distortion to any virtual instrument to give it additional thickness or to create a static effect.
Your Dynamics effects, such as Compressor and Limiter, allow you to control the volume and presence of your recordings. Though volume itself can make a recording louder or softer, your dynamics allow you to control the high and low peaks. For example, a "Compressor" effect can stop loud volume spikes from occurring in a recording. While the Dynamics effects allow you to control volume ranges, the EQ effects allow you to control frequency ranges. In other words, you can control the amount of high, middle and low frequency sounds.
Logic offers effects especially designed for your vocal recordings, such as "Pitch Shifter," "Pitch Correction" and "Vocal Transformer." The "Pitch Shifter" allows you to adjust the key of your recorded vocals, while "Pitch Correction" allows you to smooth out shaky or uneven vocals, or even apply a robotic "Auto-Tune" effect like the kind used by pop and R&B singers. "Vocal transformer" allows you to apply different filters to your vocal. For example, you can make your voice sound like an alien or chipmunk.
The Logic Reverb effects enable you to give extra dimension to your vocals and instrumentation by applying a short, hollow echo. For example, if you add reverb to a keyboard line, it can make the keyboards sounds ambient and spacey.