波動 Hysteric Oscillator vs VibraTools

An oscillator experiment app that shows the waveform in real time while it plays. Generate sine, square, pulse, sawtooth, and noise from 2 Hz to 20 kHz, and control the filter (low-pass / high-pass) and AM / FM modulation from your device. Export what you made as a video or an audio file. Useful for quick speaker and amplifier checks, DIY audio circuit tests, and learning synthesizer basics. Features - Six waveshapes: sine, square, pulse, sawtooth, harmonics, and noise (White, Pink, or Brown) - Real-time waveform display with L / R in separate colors; tap to switch to a mono trace - Spectrum analyzer: see the frequency content in real time, with guide lines on each harmonic so you can read how much harmonic content the sound has - "Harm" waveshape built from added harmonics: pick which harmonic is loudest with a slider, then set the character with Pure / Full / Odd / Even, and check the result in the spectrum - Frequency from 2 Hz to 20 kHz, with exact numeric entry - Filter: off / low-pass / high-pass, with resonance (Q) and slope (-12 to -48 dB/oct) - AM modulation with five modulator shapes; pulse lets you set the beep length in milliseconds - FM modulation with five modulator shapes: vibrato, trill, siren and hiccup-style pitch movement - Stereo balance control - 42 built-in presets (bandwidth-check sine tones, filter and pulse driven effects) - Export a vertical video (MP4) of the moving waveform for social media (free) - Export audio files (WAV / M4A) with the Full Version - Two channels for interference and beating (Full Version) - Save your own presets (Full Version) Great for - Quick checks of speakers, earphones, and amplifiers - Testing DIY effects pedals and audio circuits - Learning waveforms, filters, and modulation - Classroom and workshop demonstrations - Playing with drones, beats, and modulated tones Free and Full Version The oscillator, waveform display, filter, modulation, numeric entry, and video export are free. Two-channel operation, preset saving and file sharing, audio file export, and alternate app icons are available through a one-time in-app purchase. Note This app is intended for experiments and quick checks, not precision measurement. Start at a low volume, and take care when connecting earphones, headphones, or external speakers.

VibraTools — Modulated Sound Console Generate tones and frequencies right on your device. No sign-up, no ads, no tracking. FEATURES • Free Generator: 1 to 20,000 Hz, binaural / monaural / isochronic beats, sine / square / triangle / sawtooth waves, phase and stereo balance. • Preset Library: binaural, solfeggio, planetary frequencies, shamanic, Traditional Chinese Medicine, plants. • Chakras: 7 frequencies (396 to 963 Hz). • Harmonics (Schumann, natural series, solfeggio, planetary) and cosmic cycles. • Chromatic Tuner (microphone): A4 reference at 440 / 432 / 429.621 Hz, presets for guitar (Standard, Drop D, Open G, DADGAD), violin and ukulele, built-in pitch pipe. • 432 Hz Converter: retune your songs to 432, 429.621 or 396 Hz (WAV / MP3). • VibraTools Fusion: blend a converted song with your own VibraTools recording. • Real-time visualizer (wave, spectrum, circular, particles) and audio recording. • Available in English, French and Spanish. PRIVACY No account, no ads, no tracking. All audio processing happens locally on your device. The microphone is used only by the tuner, and nothing is recorded or sent. Headphones recommended for binaural effects. VibraTools is a sound generation tool intended for relaxation and experimentation. It is not a medical device and does not replace any medical advice or treatment. By OpenVib.