Signal Scope Studio

Signal Scope Studio combines a dual-channel oscillator, an output signal simulator, a live microphone oscilloscope and spectrum analyzer, and a stereo decibel meter in one audio toolkit.

DUAL SIGNAL GENERATOR
• Set sine, square, triangle, falling sawtooth, or white noise independently for LEFT and RIGHT
• Adjust frequency from 20 Hz to 20 kHz and volume from 0 to 100% with 270-degree dials. Frequency also supports numeric entry
• Adjust left and right frequency and volume independently, or link them while preserving the ratios at the time linking is enabled
• Output different frequencies from the left and right channels to produce beats and other effects

OUTPUT SIGNAL SIMULATOR
• Linearly sum LEFT + RIGHT internally and display the waveform and spectrum together
• Adjust Auto Trigger, freeze/resume, vertical and horizontal zoom, and refresh interval
• Control frequency range, spectrum sensitivity, and FFT resolution with dials or pinch and pan gestures
• Save high-resolution graphs with a dark navy background, white text, and green traces to Photos

WAVESCOPE
• Display the time-domain waveform and frequency spectrum of microphone input together in real time
• Use Auto Trigger, freeze display, pinch zoom, and a movable settings window
• Open Dual Signal Generator within the app and measure the actual sound emitted by the same device

DECIBEL METER
• Display relative microphone input levels on analog-style VU meters in real time
• Automatically detect stereo or mono input: two separate meters for the left and right channels in stereo, or one meter in mono
• Use PEAK indicators to spot brief sounds near the maximum input level
• Save a calibration offset to match a commercial decibel meter

MORE
• All features are available for seven days from the original download date. After the trial, Dual Signal Generator and Decibel Meter remain free to use; a one-time purchase lets you continue using WaveScope.
• Includes detailed offline manuals in Japanese, English, and French.
• Supports iPhone and iPad in portrait and landscape.

PLEASE NOTE
• Measurements depend on the device and environment.
• This app is intended for education, experiments, and general audio checks. It is not a substitute for calibrated instruments, certified sound-level meters, or medical devices.