# AET Quiz — Audio Engineering Practice

> Audio Engineering Practice (iPhone/iPad app by HYO SEOP LEE.)

- Source: https://appshunter.io/ios/app/aet-quiz/id6797225714 (this page in markdown: same URL + `.md`)
- Developer: [HYO SEOP LEE](https://appshunter.io/developer/6790621758)
- Category: Music, Education
- Price: Free
- Age rating: 4+
- Requires: iOS 26.5 · 1 MB
- Languages: Korean, European Spanish, American English, Japanese, Chinese (Simplified, China)
- Released: 2026-08-05
- Data updated: 2026-08-18
- User reviews in markdown: https://appshunter.io/ios/app/aet-quiz/id6797225714/reviews.md

## What is AET Quiz?

A quiz app for practicing audio engineering calculations with randomly generated questions. No login, no ads, no tracking — works completely offline.

■ Electrical
· Ohm's Law (current/voltage) questions
· Power (P=V×I) questions
· dB ↔ power ratio conversion questions
· Speaker impedance (series/parallel) questions

■ Delay
· Speed of sound by temperature questions
· Distance ↔ time delay questions
· BPM-based note length questions
· Haas effect (precedence effect) zone questions
· Multi-zone speaker delay (with precedence offset) questions

■ Acoustics
· Wavelength (λ) questions
· Period questions
· RT60 reverberation time questions
· SPL falloff by distance questions

■ Tempo & Pitch
· Playback speed ↔ pitch (semitone) conversion questions
· Loop BPM questions
· Buffer size / sample rate latency questions

■ Mixed
· Combined questions from all four categories above

Choose 5, 10, 15, or 20 questions per round — a fresh set of random questions every time. Each answer comes with an instant explanation showing the formula, and you can track your round progress, hit count, and accuracy in real time.

Available in Korean, English, Japanese, Spanish, and Simplified Chinese. Runs on iPhone, iPad and Mac


## Version history (last 1 release)

### 1.0 — 2026-08-05

No release notes.

## More apps by HYO SEOP LEE

- [AudioEngineerToolkit](https://appshunter.io/ios/app/audioengineertoolkit/id6794612792)
- [무대음향 자격증 기출문제](https://appshunter.io/ios/app/id6798884217)

All apps by HYO SEOP LEE: https://appshunter.io/developer/6790621758

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-18.*