# Audio Vocoder Apply a vocoder effect using a carrier and modulator > Canonical page: https://elysiatools.com/en/tools/audio-vocoder - **Category:** Media - **Keywords:** audio, vocoder, robot, electronic, voice synthesis, sci-fi, carrier, modulator ## Overview Creates robotic, electronic voice effects by analyzing the spectral envelope of a modulator signal and applying it to a carrier signal. Classic effect used in electronic music, sci-fi, and voice synthesis. ## Inputs - **Modulator Audio File** (file): The voice or instrument to be vocoded (analyzed for spectral content). - **Carrier Type** (select): Type of carrier signal that provides the timbre. Synth = clean electronic, Noise = gritty texture. - **Carrier Base Frequency (20-1000 Hz)** (number): Base frequency for the synthesized carrier. Lower = deeper voice, Higher = brighter. - **Carrier Waveform** (select): Waveform shape of the carrier oscillator. - **Frequency Bands (4-32)** (number): Number of frequency bands to analyze. More bands = clearer articulation, less = smoother. - **Analysis Window (10-200 ms)** (number): Window size for spectral analysis. Shorter = more responsive, Longer = smoother transitions. - **Wet/Dry Mix (0-1.0)** (range): Balance between dry (original) and wet (vocoded) signal. - **Output Format** (select) ## When to use - When creating robotic or synthesized voice effects for music tracks. - When designing sound effects for sci-fi or futuristic media. - When experimenting with voice synthesis and electronic audio manipulation. ## How it works - Upload a modulator audio file, such as a voice recording or instrument track. - Choose a carrier type and adjust parameters like frequency, waveform, and analysis settings. - Set the wet/dry mix and output format, then process to generate the vocoded audio file. ## Use cases - Adding robotic vocals to electronic dance music tracks. - Creating alien or robot voiceovers for video games or films. - Transforming spoken word into synthesized speech for artistic projects. ## Frequently asked questions ### What is a vocoder effect? A vocoder effect analyzes the spectral envelope of a modulator signal and applies it to a carrier signal, creating robotic or electronic voice sounds. ### What audio formats are supported for input and output? Input supports common audio formats like MP3, WAV, etc. Output can be MP3, AAC, M4A, OGG, Opus, FLAC, or WAV. ### Can I use my own carrier signal? No, the tool uses synthesized carriers like synth, noise, pulse, or harmonic-rich signals. You cannot upload a custom carrier file. ### How do I adjust the clarity of the vocoded voice? Increase the number of frequency bands for clearer articulation or decrease for a smoother effect. Adjust the analysis window for responsiveness. ### Is there a file size limit for the modulator audio? Yes, the modulator audio file must be under 200 MB. ## Related tools - [FFmpeg Audio Noise Reduction](https://elysiatools.com/en/tools/ffmpeg-audio-noise-reduction): Professional audio noise reduction using FFmpeg advanced filters (highpass, afftdn, loudnorm) for optimal audio cleaning - [Audio Noise Reducer](https://elysiatools.com/en/tools/audio-noise-reducer): Remove background noise from audio files using various noise reduction algorithms - [Audio Ring Modulator](https://elysiatools.com/en/tools/audio-ring-modulator): Apply ring modulation for a metallic, bell-like sound - [Audio Dither](https://elysiatools.com/en/tools/audio-dither): Apply dithering during bit depth reduction - [Audio Speed Changer](https://elysiatools.com/en/tools/audio-speed-changer): Change audio playback speed while maintaining original pitch using time-stretching algorithms - [Audio Remote Guest Rescue](https://elysiatools.com/en/tools/audio-remote-guest-rescue): Reduce room echo, broadband noise, boxiness, and dullness in remote guest recordings. - [Audio Melody Contour Extractor](https://elysiatools.com/en/tools/audio-melody-contour-extractor): Extract a dominant melody path from audio and export MIDI, note events, a pitch contour, SVG, and JSON in one ZIP. - [Audio Mixer](https://elysiatools.com/en/tools/audio-mixer): Mix two audio files together with customizable timing control ## Samples - [Copyright-Free MP3 Audio Samples](https://elysiatools.com/en/samples/mp3-samples): Collection of royalty-free audio samples for testing and development purposes including nature sounds, meditation music, and ambient audio - [Copyright-Free WAV Audio Samples](https://elysiatools.com/en/samples/wav-samples): Uncompressed PCM WAV audio samples for testing and development, mirrored from MP3 set with nature sounds and meditation music - [Speech Learning & Safety Audio Samples](https://elysiatools.com/en/samples/audio-learning-safety-samples): Deterministic synthetic WAV inputs for pronunciation comparison, dictation preflight, alert degradation, and voice privacy tools. - [Copyright-Free Raw PCM Audio Samples](https://elysiatools.com/en/samples/pcm-samples): Raw PCM s16le audio samples featuring nature ambience and relaxing music for waveform, playback, and conversion workflows ## Related content - [Audio Reverb, Modulation, and Sound Design Effects Tools](https://elysiatools.com/en/hubs/audio-sound-design-effects): Choose, preview, compare, and verify reverb, delay, modulation, and character effects for music, video, podcast, and game sound design.