Voice Changer

Voice effects are applied using the Web Audio API, which provides a real-time audio processing graph in your browser. The robot effect uses ring modulation — multiplying the audio signal by a low-frequency oscillator to create a metallic, robotic character. Echo adds a delay node that repeats the signal with feedback, creating the characteristic bouncing echo sound. Reverb uses a convolution reverb algorithm that simulates sound reflecting off walls in a large hall. The telephone effect uses bandpass filtering (300Hz–3400Hz) to mimic the narrow frequency response of telephone audio. Deep voice and chipmunk effects change playback rate, which simultaneously shifts pitch and tempo. All processing happens live in your browser without uploading audio to any server.