{"id":6542,"date":"2025-09-17T11:56:00","date_gmt":"2025-09-17T15:56:00","guid":{"rendered":"https:\/\/splice.com\/blog\/?p=6542"},"modified":"2025-12-09T14:06:57","modified_gmt":"2025-12-09T19:06:57","slug":"what-is-a-vocoder","status":"publish","type":"post","link":"https:\/\/splice.com\/blog\/what-is-a-vocoder\/","title":{"rendered":"What is a vocoder? How to use vocoders in your music"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">Although it was originally developed in the 1920s for communications purposes, the vocoder found a niche within electronic music as a tool for creating \u201crobotic\u201d vocal sounds.<\/h2>\n\n\n\n<p>In modern popular music, the vocoder remains as popular as ever. For example, you\u2019ve heard its lush textures on smash hits including Zedd, Maren Morris, and Grey\u2019s \u201cThe Middle\u201d and Ginuwine\u2019s \u201cPony.\u201d <\/p>\n\n\n\n<figure><iframe src=\"https:\/\/open.spotify.com\/embed\/track\/09IStsImFySgyp0pIQdqAc?si=70fe962b2eed4cbc\" width=\"100%\" height=\"80\" frameborder=\"0\" allowtransparency=\"true\" allow=\"encrypted-media\"><\/iframe><\/figure>\n\n\n\n<figure><iframe src=\"https:\/\/open.spotify.com\/embed\/track\/6mz1fBdKATx6qP4oP1I65G?si=3e06f858af8f4c6c\" width=\"100%\" height=\"80\" frameborder=\"0\" allowtransparency=\"true\" allow=\"encrypted-media\"><\/iframe><\/figure>\n\n\n\n<p>But, despite their intuitively appealing sound, it can be difficult to understand exactly <em>how<\/em> a vocoder modifies your audio. In this article, we\u2019ll take a look at what exactly a vocoder really is and how it works on the audio processing level. We&#8217;ll then apply this knowledge in <a href=\"https:\/\/splice.com\/blog\/what-is-a-daw\/\" target=\"_blank\" rel=\"noreferrer noopener\">the DAW<\/a> to explore how we can use some common vocoder parameters to their fullest.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">What you&#8217;ll learn<\/h3>\n\n\n\n<ul>\n<li style=\"font-style:normal;font-weight:700\"><a href=\"#Definition\">What is a vocoder?<\/a><\/li>\n\n\n\n<li style=\"font-style:normal;font-weight:700\"><a href=\"#HowItWorks\">How does a vocoder work?<\/a><\/li>\n\n\n\n<li style=\"font-style:normal;font-weight:700\"><a href=\"#HowToUseVocoderInDAW\">How to use a vocoder in the DAW<\/a><\/li>\n\n\n\n<li style=\"font-style:normal;font-weight:700\"><a href=\"#VocoderPluginParameters\">Vocoder plugin parameters<\/a><\/li>\n<\/ul>\n\n\n\n<p>Let&#8217;s dive in!<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"Definition\">What is a vocoder?<\/h2>\n\n\n\n<p>A <strong>vocoder<\/strong> is a type of speech coding technique (or the hardware \/ software that applies it) that was originally developed a century ago for telecommunication purposes. By synthesizing human speech into a codec, Homer Dudley of Bell Labs enabled phone conversations to occur over longer distances by preserving precious bandwidth. Today, vocoders are also widely used as a creative effect in music.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"HowItWorks\">How does a vocoder work?<\/h2>\n\n\n\n<p>Vocoders require two audio sources to function: a <strong>carrier,<\/strong> which acts as the initial sound source, and a <strong>modulator,<\/strong> whose <a href=\"https:\/\/splice.com\/blog\/what-are-harmonics\/\" target=\"_blank\" rel=\"noreferrer noopener\">harmonic characteristics<\/a> shape the sound of the carrier.<\/p>\n\n\n\n<p>This is achieved through the use of a \u201cfilter bank,\u201d which analyzes the modulator signal, divides it into frequency bands, and applies a band-pass filter to each one. These filters are tuned automatically to the center frequency of each band present in the modulator signal. Finally, once the carrier signal is sent through the filters, the vocoder raises or lowers the level of each filter according to the harmonics of the modulator signal.<\/p>\n\n\n\n<p>&#8230;Got all that? Carrier and modulator signals can admittedly be quite difficult to grasp on an abstract level. If the above description didn&#8217;t quite process for you, think about how the sound of your voice works for a simplified analogy. Your lungs produce air, vibrating your vocal cords; this is a carrier signal of sorts. Next, the rest of your vocal tract shapes the vibrating air as it leaves your body; you can think of this as a modulator.<\/p>\n\n\n\n<p>A vocoder works in the same way, by affecting the carrier signal according to the characteristics of the modulator signal.<\/p>\n\n\n\n<p class=\"has-black-color has-text-color has-background has-link-color wp-elements-c3706cc98d779b0d6fb864120a14adaa\" style=\"background-color:#62daff\"><strong>Voice to verse\u2014anywhere. With the addition of Splice Mic, you can instantly test and record ideas, explore genres, and unlock new creative possibilities, all from <\/strong><a href=\"https:\/\/splice.onelink.me\/vNNn\/sozstw8b\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>the Splice mobile app.<\/strong><\/a><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Carrier and modulator signal types<\/h2>\n\n\n\n<p>Any type of audio signal can be used as either a carrier or a modulator (or both simultaneously), but music producers typically use synthesized sounds as carriers and vocals as modulators.<\/p>\n\n\n\n<p>For a classic example of a vocoder effect using a saw wave patch as a carrier and a spoken human voice as the modulator, listen to 1:16 of Kraftwerk\u2019s \u201cTrans-Europe Express\u201d below:<\/p>\n\n\n\n<figure><iframe src=\"https:\/\/open.spotify.com\/embed\/track\/3UjH6apk0ogZeIqhHbjrRU?si=720925052f9747df\" width=\"100%\" height=\"80\" frameborder=\"0\" allowtransparency=\"true\" allow=\"encrypted-media\"><\/iframe><\/figure>\n\n\n\n<p>For a demonstration of a more scratchy, experimental vocoder effect, check out <a href=\"https:\/\/www.youtube.com\/watch?v=V87yXX7wZxo\" target=\"_blank\" rel=\"noopener noreferrer\">our recreation of Kavinsky\u2019s \u201cNightcall.\u201d<\/a> This&nbsp;patch consists of two square waves playing chords and some <a href=\"https:\/\/splice.com\/blog\/difference-between-noise\/\" target=\"_blank\" rel=\"noreferrer noopener\">white noise<\/a> that serves as the carrier, which is modulated by a spoken vocal part.<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe title=\"How to Recreate Kavinsky\u2019s \u201cNightcall\u201d | VocalSynth 2\" width=\"370\" height=\"208\" src=\"https:\/\/www.youtube.com\/embed\/V87yXX7wZxo?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<p>These days, plugins like <a href=\"https:\/\/splice.com\/plugins\/38599625-vocalsynth-2-vst-au-by-izotope\" target=\"_blank\" rel=\"noreferrer noopener\">iZotope&#8217;s VocalSynth 2<\/a> or <a href=\"https:\/\/splice.com\/plugins\/39137243-v-collection-11-pro-vst-au-by-arturia\" target=\"_blank\" rel=\"noreferrer noopener\">Arturia&#8217;s Vocoder V<\/a> allow music creators to experiment with vocoding, even if they don&#8217;t own any fancy hardware. While not as polished as the best third-party offerings, some DAWs like Logic Pro X even have native vocoder plugins that you can play around with.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><img decoding=\"async\" width=\"1356\" height=\"734\" data-src=\"https:\/\/splice.com\/blog\/wp-content\/uploads\/2019\/07\/Screen-Shot-2022-04-26-at-6.39.01-PM.png\" alt=\"what-is-a-vocoder-how-vocoders-work-logic-pro-x-evoc-20-polysynth-in-post-01\" class=\"wp-image-21171 lazyload\" data-srcset=\"https:\/\/splice.com\/blog\/wp-content\/uploads\/2019\/07\/Screen-Shot-2022-04-26-at-6.39.01-PM.png 1356w, https:\/\/splice.com\/blog\/wp-content\/uploads\/2019\/07\/Screen-Shot-2022-04-26-at-6.39.01-PM-400x217.png 400w, https:\/\/splice.com\/blog\/wp-content\/uploads\/2019\/07\/Screen-Shot-2022-04-26-at-6.39.01-PM-1024x554.png 1024w, https:\/\/splice.com\/blog\/wp-content\/uploads\/2019\/07\/Screen-Shot-2022-04-26-at-6.39.01-PM-355x192.png 355w, https:\/\/splice.com\/blog\/wp-content\/uploads\/2019\/07\/Screen-Shot-2022-04-26-at-6.39.01-PM-768x416.png 768w\" data-sizes=\"(max-width: 1356px) 100vw, 1356px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 1356px; --smush-placeholder-aspect-ratio: 1356\/734;\" \/><\/figure><\/div>\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"HowToUseVocoderInDAW\">How to use a vocoder in the DAW<\/h2>\n\n\n\n<p>To get high-quality results from your experimentation with vocoders, you\u2019ll probably want to use a carrier wave that&#8217;s rich in harmonic content. If you provide the vocoder with more harmonics, the modulation effects will be much more evident and intelligible than, say, a sine or triangle wave.<\/p>\n\n\n\n<p>We\u2019d recommend beginning with a saw wave or saw-based synth patch. It\u2019s also not a bad idea to <a href=\"https:\/\/splice.com\/blog\/what-is-compression\/\" target=\"_blank\" rel=\"noopener noreferrer\">compress<\/a> or <a href=\"https:\/\/splice.com\/blog\/effects-101-distortion\/#:~:text=%2D%2D%3A%2D%2D-,Saturation,add%20some%20color%2C%20so%20that%20your%20mix%20sounds%20less%20sterile.,-Take%20a%20listen\" target=\"_blank\" rel=\"noopener noreferrer\">saturate<\/a> your carrier signal on its way into the vocoder; a more limited dynamic range will help accentuate the effects of the filter bank.<\/p>\n\n\n\n<p>Now, let\u2019s talk about the modulator. When you\u2019re singing or talking with the intention of applying a vocoder effect, don\u2019t be afraid to over-articulate. Pronounce the words more clearly than you usually would\u2014since the harmonic characteristics of your voice will be very different, your diction is key to an intelligible vocoder effect (assuming that\u2019s what you\u2019re going for).<\/p>\n\n\n\n<p>On the other hand, pitch accuracy doesn\u2019t really matter when singing into a vocoder. So, focus on making the other characteristics of your voice as interesting as possible.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"VocoderPluginParameters\">What are the parameters of a vocoder plugin?<\/h2>\n\n\n\n<p>Below are a few parameters commonly found on vocoder plugins and hardware. Understanding what each of these do can help guide your creative process.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Bands<\/h3>\n\n\n\n<p>This refers to the number of frequency bands into which the modulator signal is split. Essentially, you can think of this as resolution. Vintage vocoders tend to have fewer frequency bands, so try using a setting of 8 &#8211; 12 bands if you&#8217;re going for a more classic sound.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Frequency range<\/h3>\n\n\n\n<p>This refers to the upper and lower limits of the frequency in the carrier signal accepted by the vocoder. To increase intelligibility, try raising the upper limit of the frequency range on your vocoder above ~5 kHz.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Formant<\/h3>\n\n\n\n<p>Some vocoders offer a formant parameter (sometimes also referred to as &#8220;shift&#8221;). This will increase or decrease the frequencies of the filters. In turn, this makes the result sound brighter or deeper, respectively.<\/p>\n\n\n\n<p>Manipulating your vocoder&#8217;s formant parameter is great for blurring the lines or switching between &#8216;male-sounding&#8217; and &#8216;female-sounding&#8217; vocals. In fact, some vocoders even have a &#8220;gender&#8221; parameter dedicated to this.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Unvoiced<\/h3>\n\n\n\n<p>Unvoiced sounds occur naturally in human speech. Also known as plosives, these sounds are produced when we make a consonant that requires blowing air through the lips (such as \u201cp\u201d or \u201cb\u201d).<\/p>\n\n\n\n<p>Many vocoder plugins are capable of detecting these airy, noisy sounds, which span a distinct frequency range from pitched, vibrating vocal cord sounds. For example, on Ableton\u2019s Vocoder audio effect, the Unvoiced knob allows the user to mix a noise generator with the carrier wave to ensure that these un-pitched transient sounds remain present in your vocoded audio.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" width=\"1474\" height=\"703\" data-src=\"https:\/\/splice.com\/blog\/wp-content\/uploads\/2019\/07\/ableton-vocoder-unvoiced.png\" alt=\"\" class=\"wp-image-6545 lazyload\" data-srcset=\"https:\/\/splice.com\/blog\/wp-content\/uploads\/2019\/07\/ableton-vocoder-unvoiced.png 1474w, https:\/\/splice.com\/blog\/wp-content\/uploads\/2019\/07\/ableton-vocoder-unvoiced-400x191.png 400w, https:\/\/splice.com\/blog\/wp-content\/uploads\/2019\/07\/ableton-vocoder-unvoiced-1024x488.png 1024w, https:\/\/splice.com\/blog\/wp-content\/uploads\/2019\/07\/ableton-vocoder-unvoiced-355x169.png 355w, https:\/\/splice.com\/blog\/wp-content\/uploads\/2019\/07\/ableton-vocoder-unvoiced-768x366.png 768w\" data-sizes=\"(max-width: 1474px) 100vw, 1474px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 1474px; --smush-placeholder-aspect-ratio: 1474\/703;\" \/><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Conclusion: What is a vocoder?<\/h2>\n\n\n\n<p>Whether you&#8217;re shooting for a classic synth pop sound or designing cinematic robot vocalizations for a sci-fi film, vocoding is a versatile technique that can meet a wide array of creative needs. We hope this article was helpful in giving you some insight into the history of vocoders, how they work, and how you can apply them in your own music.<\/p>\n\n\n\n<p>Do you have any questions on how to use vocoders? Are there any vocoder tricks that you rely on in your own productions that you&#8217;d like to share? <a href=\"https:\/\/splice.com\/community\" target=\"_blank\" rel=\"noreferrer noopener\">Join our Discord community<\/a> and start a conversation with other music creators who are also looking to exchange knowledge and advance their craft.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity\"\/>\n\n\n\n<p class=\"has-text-align-center\">Dive into the world of vocoding with iZotope&#8217;s VocalSynth 2:<\/p>\n\n\n\n<div class=\"wp-block-button aligncenter\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/splice.com\/plugins\/38599625-vocalsynth-2-vst-au-by-izotope\" target=\"blank\" rel=\"noopener noreferrer\">Try VocalSynth 2 for free<\/a><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Learn about what a vocoder is, how the effect works, and how you can apply vocoding in your own music with hardware or plugins.<\/p>\n","protected":false},"author":37,"featured_media":21176,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"footnotes":""},"categories":[1696,1702],"tags":[1677,1721,333,1473,666,1686,1249,1664],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v22.9 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>What is a Vocoder? How Vocoders Work &amp; How to Use Them - Blog | Splice<\/title>\n<meta name=\"description\" content=\"Learn about what a vocoder is, how the effect works, and how you can apply vocoding in your own music with hardware or plugins.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/splice.com\/blog\/what-is-a-vocoder\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"What is a Vocoder? How Vocoders Work &amp; How to Use Them - Blog | Splice\" \/>\n<meta property=\"og:description\" content=\"Learn about what a vocoder is, how the effect works, and how you can apply vocoding in your own music with hardware or plugins.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/splice.com\/blog\/what-is-a-vocoder\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog | Splice\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/Splice\" \/>\n<meta property=\"article:published_time\" content=\"2025-09-17T15:56:00+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-12-09T19:06:57+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/splice.com\/blog\/wp-content\/uploads\/2019\/07\/Vocoder-Blog-Assets_BlogPost.png\" \/>\n\t<meta property=\"og:image:width\" content=\"1920\" \/>\n\t<meta property=\"og:image:height\" content=\"1200\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"Max Rewak\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@splice\" \/>\n<meta name=\"twitter:site\" content=\"@splice\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Max Rewak\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"6 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/splice.com\/blog\/what-is-a-vocoder\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/splice.com\/blog\/what-is-a-vocoder\/\"},\"author\":{\"name\":\"Max Rewak\",\"@id\":\"https:\/\/splice.com\/blog\/#\/schema\/person\/ac115eb79fc1d26dff55bbdd992c0bce\"},\"headline\":\"What is a vocoder? 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