Turn audio files into effects. Explore ten ways to design an impulse response, from reverse blooms and drawn echoes to chord bodies, filter sweeps, vowels, spectral delays, reverbs, and rain. Try the built-in sounds, drag in your own audio, or select Live audio to process an instrument. Switch between Waveform, Frequency response, and Waterfall to see what you hear. Your imported audio stays on your device. The free version includes all the sound-design controls and Listen to IR. Exporting your impulse responses as WAV files is available to WaveShaper members on Patreon. Already a WaveShaper member? Open the export-enabled edition here.