What does vocoder mean?
A vocoder is an electronic or digital system that analyzes voice and reconstructs it from selected measurements or controls. In telecommunications, it can encode speech efficiently by transmitting information about selected frequency components rather than the complete sound. In music and audio production, a vocoder is used to transform the human voice, replacing or modifying parts of its frequency structure to create robotic, synthetic, metallic, or layered sounds. Its characteristic effect results from the voice being analyzed in detail and then resynthesized according to the operator's settings. Although vocoders are specialized tools, they have become familiar through electronic music, electronic instruments, sound effects, and the deliberately artificial voices used in popular culture. The word therefore signifies both a technical method for analyzing and encoding speech and a distinctive creative process for reshaping vocal sound.
nounA device or software system that analyzes speech, typically by separating it into frequency bands, and reconstructs it from transmitted or controlled parameters. It is also used electronically to transform vocal sounds, often producing a synthetic, robotic, or layered timbre.
- An electronic or digital device that analyzes and encodes speech for transmission by separating it into measurable components, such as frequency bands.
- A device, software effect, or signal-processing technique used to transform the human voice by analyzing it and synthesizing it under different controls.
"The producer layered the singer's live vocal through a vocoder, giving each syllable a stuttering robotic edge."
"The vocoder reduced the telephone transmission to a few carefully controlled parameters before reconstructing the speech at the other end."
"By routing the choir through a vocoder, the composer created a shifting choir of synthetic voices."
The standard plural is “vocoders,” used for multiple devices, software systems, or signal-processing units.
"The studio has several vocoders for transforming and layering vocals."
A vocoder can turn speech into a robotic voice—or turn a talking drum into a musical instrument.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of vocoder
“Vocoder” is an English blend of “voice” and “coder,” with “coder” derived from “code.” “Voice” comes through Old French from Latin vox, while “code” comes through French from Latin codex. The terminology developed with electronic speech transmission in the early twentieth century, before the word became familiar in electronic music and sound processing.
Related word forms
How vocoder is actually used
The term is specialized in telecommunications, audio engineering, and electronic music. In popular usage it often refers to the conspicuous robotic or synthesized vocal effect rather than to the original speech-encoding technology.
Easily confused with vocoder
A codec generally compresses and decompresses digital media, whereas a vocoder specifically analyzes and resynthesizes speech or vocal sounds.
A voice changer generally imitates another speaker's voice, while a vocoder can reshape vocal formants and rhythm without necessarily reproducing a particular person's voice.