InFreq: Frequency Generator

Krepel Studio

Contains adsIn-app purchases

About this app

Generate a clean sine tone at an exact frequency to test speakers, headphones, subwoofers, and other audio systems. InFreq helps you quickly play the frequency you need, check how your equipment responds, and find resonances or problem areas across the audible range.

PRECISE FREQUENCY CONTROL

• Range from 20 Hz to 20 kHz
• Logarithmic slider for fast movement between low and high frequencies
• −1 Hz / +1 Hz buttons for precise adjustment
• Manual entry of an exact frequency value
• Change frequency during playback without restarting the generator
• Clear animated waveform while the tone is playing

WHAT INFREQ IS FOR

• Testing speakers and audio systems
• Checking headphones
• Testing subwoofers and low frequencies
• Finding resonances, rattles, and problematic frequencies
• Checking specific parts of the audio range
• Playing an exact test tone for audio equipment setup and testing

PRO LIFETIME

A one-time Pro purchase unlocks advanced audio testing tools:

• Unlimited use of the frequency generator
• Built-in frequency presets
• Unlimited custom presets
• Left / Right / Both for testing the left, right, or both audio channels
• Frequency Sweep with selectable start and end frequencies
• Adjustable Frequency Sweep duration
• Timer for automatic playback stop
• No ads

InFreq is designed as a simple and clear frequency generator and test tone tool without unnecessary modes or complexity. Choose the frequency you need, press Play, and use a clean audio signal to test your audio system.

Developer website: krepelstudio.com

What’s new

Generate clean tones from 20 Hz to 20 kHz to test speakers, headphones, subwoofers, and audio systems. Get precise frequency control, manual input, and ±1 Hz adjustment. Pro unlocks presets, custom presets, Left/Right/Both, Frequency Sweep, Timer, and removes ads.