Feedback Trainer
Ear Training for PA
Free · Designed for iPad. Not verified for macOS.
Ear training app for PA and audio engineers. Practice identifying feedback frequencies fast.
A frequency ear training app for PA engineers and audio professionals.
The ability to quickly identify problem frequencies that cause feedback is a skill built through experience. Train your ears with this app and sharpen your instincts for the stage and studio.
Features
Visual learning with a 31-band graphic EQ display
Two modes: Phone-Friendly (100Hz–16kHz) and Full Range for external speakers (40Hz–16kHz)
Hint mode for beginners
Track your accuracy and progress history
Available in Japanese, English, Chinese, French, and Spanish
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, Shunsuke Takasu, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Location
- Identifiers
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Location
- Identifiers
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Shunsuke Takasu
- Size
- 571.4 KB
- Category
- Music
- Compatibility
Requires iOS 16.6 or later.
- iPhone
Requires iOS 16.6 or later. - iPad
Requires iPadOS 16.6 or later. - Mac
Requires macOS 13.5 or later and a Mac with Apple M1 chip or later.
- iPhone
- Languages
English and 4 more
- English, French, Japanese, Simplified Chinese, Spanish
- Age Rating
4+
- 4+
- Copyright
- © 2026 Hazu Studio