Embedded Files
OVERVIEW
EVOC 20 FILTERBANK
EVOC 20 Filterbank is Logic Pro’s advanced vocoder-style effect that reshapes one sound using the tonal characteristics of another. Most commonly, it uses a voice (the modulator) to control a synth, instrument, or audio source (the carrier), creating the classic “talking synth” or robotic vocal sound. Unlike simpler vocoders, EVOC 20 Filterbank offers detailed control over frequency bands, filter response, and formant shaping, making it a powerful creative and sound-design tool.
Key Features
Key Features
20-Band Filterbank: Splits the audio spectrum into 20 frequency bands for detailed spectral control.
Vocoder Processing: Uses the modulator’s frequency content (often a vocal) to shape the carrier signal.
Internal Synth Carrier: Built-in synth sounds allow EVOC 20 to function without an external instrument.
External Carrier Input: Route any Logic instrument or audio track as the carrier signal.
Formant Shift Controls: Changes perceived vocal size or gender character without altering pitch.
Attack & Release Controls: Adjust how quickly the filter responds to incoming sound, shaping articulation and clarity.
Unvoiced Signal Control: Preserves consonants (S, T, F sounds) for intelligibility.
Freeze Function: Captures and holds a spectral snapshot for sustained or experimental textures.
Output Level & Band Balance: Adjust overall output and fine-tune frequency emphasis.
Best Use Cases
Best Use Cases
Classic vocoder vocals (“robot voice” effect).
Electronic and pop music vocal effects.
Synth leads and pads shaped by speech rhythms.
Talkbox-style effects without specialized hardware.
Sound design for film, games, or experimental music.
Layering vocals for texture and interest rather than intelligibility.
Creative transitions and breakdowns using frozen spectral shapes.
Popular Song Examples
Popular Song Examples
"Harder, Better, Faster, Stronger" - Daft Punk
"Hide and Seek" - Imogen Heap
"Mr. Roboto" - Styx
"California Love"- 2Pac (feat. Roger Troutman)
"Midnight City" (Outro) - M83
Workflow Tips
Workflow Tips
Use a strong carrier sound. Bright synths with sustained harmonics (saws, squares, pads) work best.
Record clean vocals. Clear articulation improves intelligibility.
Route carefully. Use a bus or side-chain routing to send the vocal into EVOC 20’s modulator input.
Adjust attack/release for clarity. Faster attack improves consonants; longer release creates smoother, pad-like effects.
Blend dry vocals if needed. Mixing a small amount of unprocessed vocal helps clarity in pop contexts.
Try Freeze for sound design. Freeze a vocal spectrum and play chords through the carrier synth.
Experiment with formant shift. Subtle changes dramatically affect character without sounding “out of tune.”
Automate parameters. Automate formant shift, band emphasis, or mix for evolving effects.
Think musically. EVOC responds best when the carrier plays harmonically interesting chords rather than single notes.
LISTEN to this POD about the EVOC 20 FILTERBANK Plugin
FAMOUS USES
(These songs use vocoder or vocoder-style effects similar to what EVOC 20 Filterbank can produce)
Harder, Better, Faster, Stronger
Harder, Better, Faster, Stronger
"Harder, Better, Faster, Stronger" - Daft Punk
Duration: 3:45
Timestamp: 0:00–0:25
Use: Classic vocoder vocal controlling a synth carrier.
Hide and Seek
Hide and Seek
"Hide and Seek" - Imogen Heap
Duration: 4:28
Timestamp: 0:00–4:28
Use: Entire track built on harmonized, vocoder-style vocal processing.
Mr. Roboto
Mr. Roboto
"Mr. Roboto" - Styx
Duration: 4:46
Timestamp: 0:12–0:40
Use: Early robotic vocal vocoder effect.
Midnight City
Midnight City
"Midnight City" - M83 (Outro)
Duration: 4:03
Timestamp: 3:15–3:55
Use: Synth lead processed with vocoder-like filtering for expressive texture.
LOGIC VIDEO TUTORIALS
Filterbank Tutorial
Filterbank Tutorial
EddShed provides an in depth tutorial on how to use the EVOC 20 Filterbank plugin. (10:36)
EVOC Filterbank Quick
EVOC Filterbank Quick
ProAudioTipz quickly demonstrates how to use the EVOC20 Filterbank Plugin. (1:58)
Filterbank Demo
Filterbank Demo
@GuitInTheBox provides a brief demo of what Logic Pro's EVOC 20 Filterbank is capable of. (1:02)
Logic Filtering Effects
Logic Filtering Effects
Recording Connection Audio Institute provides a tutorial of all the filtering effects in Logic Pro. (36:07)
FILTER VIDEO TUTORIALS
Basics of Audio Filters
Basics of Audio Filters
Mixed Signals explains the basics of Audio Filters. (6:54)
Filters and EQs
Filters and EQs
Woochia explains the basics of EQs and Filtering. (13:10)
Comb Filtering
Comb Filtering
Audio University explains comb filtering. (14:13)
Digital Filter Basics
Digital Filter Basics
Akash Murthy defines filters and the basics behind filters. (9 videos)
Filter Explained 1
Filter Explained 1
wickiemedia explains filters in part 1 of his two part serioes. (4:54)
Filters Explained 2
Filters Explained 2
wickiemedia explains filters in part 1 of his two part serioes. (17:43)
Resonance
Resonance
wickiemedia explains and demonstrates resonance. (0:59)
Movement with Filters
Movement with Filters
Cableguys provide tips on how to make your music move with filters. (12:48)
SOURCE ARTICLES
SOURCE ARTICLES YOU CAN READ:
“Vocoder” (Wikipedia — technology overview)
“A Basic Vocoder Tutorial, Part 1” — Cycling ’74
“Using Vocoder Effects in Modern Music Production” — Point Blank Music School
“How to Use Vocoders 101 (Best Tips, Tricks & Techniques)” — Unison Audio
“Using Logic’s Evoc 20 Vocoder on More Than Vocals” — MusicTech
“Logic Pro Vocoder Tutorial [How to Use EVOC 20]” — Mastering.com
Logic Pro Help forum thread — “How do I use the EVOC vocoder? (EVOC 20 PS)”
VOCABULARY
1. Vocoder: An audio effect that uses the frequency content of one sound to shape another sound, commonly creating robotic or “talking synth” vocals.
2. Modulator: The sound that controls the vocoder’s filters. In EVOC 20, this is most often a vocal signal.
3. Carrier: The sound that is reshaped by the modulator, typically a synthesizer or sustained instrument sound.
4. Filterbank: A group of multiple filters that divide the audio spectrum into separate frequency bands and process each band independently.
5. Frequency Band: A specific range of frequencies within the audio spectrum. EVOC 20 analyzes sound using 20 separate bands.
6. Formant: Resonant frequency areas that define vowel sounds and give a voice its character without changing pitch.
7. Formant Shift: A control that moves formant frequencies up or down, changing the perceived size or character of the voice while keeping pitch the same.
8. Envelope: A control that shapes how the vocoder responds over time to the modulator’s volume.
9. Attack: How quickly the vocoder responds when sound begins. Faster attack improves clarity and articulation.
10. Release: How long the vocoder continues processing after the sound stops. Longer release creates smoother, sustained effects.
11. Unvoiced Signal: High-frequency consonant sounds (such as “s,” “t,” and “f”) that help speech remain intelligible in vocoder processing.
12. Freeze: A function that captures and holds the current spectral shape, allowing the carrier to sustain that sound even after the modulator stops.
13. Spectral Content: The distribution of frequencies within a sound that the vocoder analyzes and uses to shape the carrier.
14. Side-Chain Input: A routing method that allows an external audio signal to control the vocoder’s processing.
15. Internal Carrier Synth: A built-in synthesizer within EVOC 20 that can act as the carrier without needing another instrument track.
16. External Carrier: A carrier signal provided by another instrument or audio track in Logic Pro.
17. Band Emphasis: Controls that adjust the balance of individual frequency bands to improve tone or intelligibility.
18. Output Level: The final volume level of the processed signal leaving the plug-in.
19. Intelligibility: How clearly the processed vocal can be understood.
QUIZZES
MANUAL
Page updated
Report abuse