MultiTone Generator for iPhone

Quick summary

MultiTone Generator, created by Thomas Gruber, is a versatile frequency-generator app for iPhone. It lets you design and play combinations of tones and noise for audio tests, experiments, or sound design.

Core capabilities

• Configure and play up to 16 individual tones either solo or layered together.
• Generate white and pink noise for broad-spectrum audio checks.
• Choose from multiple waveform shapes and timbres for each tone.
• Run continuous or repeatable sweeps with optional modulation effects.

Waveforms available

• Sine, triangle, square (rectangular), and sawtooth tones, each selectable per voice.
• Noise types (white and pink) for masking, calibration, or analysis tasks.

Sweep controls and modulation

• Bidirectional frequency sweeps: sweep from low to high and from high to low.
• Repeatable sweep mode plus a “wobble” modulation to add subtle pitch variation.
• Adjustable sweep durations to fit short tests or long-form scans.

Fine-tuning and ranges

• Fully editable minimum and maximum frequency limits to match your measurement range.
• Set sweep time intervals to precise lengths to control scan speed and resolution.

Interface and usability

• Simple, clean layout that keeps common controls accessible and minimizes setup time.
• Designed for straightforward operation so both beginners and professionals can use it efficiently.