# AudioCalc > Audio-specific conversion formulas for professionals and enthusiasts. (iPhone/iPad app by Nelcea.) - Source: https://appshunter.io/ios/app/audiocalc/id294447976 (this page in markdown: same URL + `.md`) - Developer: [Nelcea](https://appshunter.io/developer/1694672221) - Category: Utilities, Reference - Price: $2.99 - Rating: 3.00/5 from 1 App Store ratings · 3 written reviews indexed - Age rating: 4+ - Requires: iOS 7.0 · 3 MB - Languages: American English, French (France) - Released: 2008-10-24 - Data updated: 2026-08-14 - Monetization: paid - User reviews in markdown: https://appshunter.io/ios/app/audiocalc/id294447976/reviews.md ## What is AudioCalc? HiFi enthousiasts, Home Theater buffs and audio professionals alike make sure you always have those handy formulas with you. This tool offers you a collection of audio targeted conversion tools. The frequency, period and wavelength converter comes in quite handy for positioning loudspeakers. The band tool helps you setup a parametric EQ. The delay part gives you an insight when setting speaker distances and delays. The volume tool helps you determine the amplifier power required for a given set of speakers. The room modal response tool allows you to compute the room modes present in a room. This is crucial when placing a subwoofer provide correct bass response. It can also be used when designing a room to avoid dimensions that would lead to a poor modal response. AudioCalc works in both imperial and metric units. Simply swipe down to reveal the unit selection view. If you liked this tool, be sure to also check VideoCalc, the companion tool that addresses your video needs. ## Key features - Frequency, period, and wavelength converter - Parametric EQ band setup tool - Speaker distance and delay calculator - Amplifier power calculation - Room mode response computation - Imperial and metric unit support ## Recent user reviews (3 of 3) All indexed reviews: https://appshunter.io/ios/app/audiocalc/id294447976/reviews.md ### 3/5 — Needs room mode graph *2009-12-29* There REALLY needs to be a graph/chart representing the room modes. Seating and subwoofer placement would be much easier with this addition. I bought this app hoping the "I" would lead to a graph like the icon shows....it doesn't. ### 5/5 — Great Product *2009-05-18* Works great, this program does exactly what i need, audio delay calculations. ### 1/5 — useless *2008-12-09* waste of money forget this one ## Frequently asked questions about AudioCalc ### What is AudioCalc used for? AudioCalc provides a collection of audio-targeted conversion tools for HiFi enthusiasts, home theater buffs, and audio professionals. It helps with loudspeaker positioning, setting up parametric EQs, calculating speaker delays, determining amplifier power, and computing room modes for optimal bass response. ### Does AudioCalc support different units? Yes, AudioCalc works in both imperial and metric units. Users can easily switch between units by swiping down to reveal the unit selection view. ### What are the specific tools included in AudioCalc? AudioCalc includes a frequency, period, and wavelength converter; a band tool for parametric EQ setup; a delay calculator for speaker distances; a volume tool for amplifier power; and a room modal response tool for computing room modes. ### How much does AudioCalc cost? AudioCalc is a paid application priced at $2.99. There are no in-app purchases or advertisements. ### What devices is AudioCalc compatible with? AudioCalc is available for iPhone and iPod devices. It was last updated to version 2.0 on September 14, 2016. ### What is the age rating for AudioCalc? AudioCalc has an age rating of 4+, making it suitable for a wide range of users. The app was first released on October 24, 2008. ### Is AudioCalc updated frequently? The latest version of AudioCalc is 2.0, which was released on September 14, 2016. While it has not been updated recently, it remains a functional tool for its intended purpose. ### What is the user sentiment for AudioCalc based on ratings? AudioCalc has a rating of 3.0 stars from 1 rating. This suggests a mixed or limited user reception based on the available data. ## Version history (last 4 releases) ### 2.0 — 2016-09-14 This update from Apple will improve the functionality of this app. No new features are included. This new release provides a completely revised UI and user experience, making the application easier and more pleasant to use. The user experience has been reviewed to be consistent across all HT Designer applications, on all supported platforms. The application is now taking advantage of all iPhone screen sizes. Access to unit selection and speed of sound setting are now easily available from each tab (swipe down to reveal). ### 1.2 — 2009-09-15 French version Fixed tab ordering persistence Fully tested with iPhone OS3.0 Improved help ### 1.1 — 2009-05-12 You can now compute the modal response of a room. ### 1.0 — 2008-10-24 No release notes. ## Apps similar to AudioCalc | App | Rating | Price | Category | | --- | --- | --- | --- | | [Decibel calculator](https://appshunter.io/ios/app/decibel-calculator/id496124114) | — | $0.99 | Utilities | | [Operational Amplifiers Pro](https://appshunter.io/ios/app/operational-amplifiers-pro/id6467253953) | 5.0 (1) | $4.99 | Utilities | | [Atlas Copco ECO Calculator](https://appshunter.io/ios/app/atlas-copco-eco-calculator/id1455355698) | 3.0 (2) | Free | Utilities | | [Distance Attenuation Calc](https://appshunter.io/ios/app/distance-attenuation-calc/id1410067988) | 3.7 (3) | $2.99 | Utilities | | [dBm Convert](https://appshunter.io/ios/app/dbm-convert/id6742805614) | — | $1.99 | Utilities | | [CineMath](https://appshunter.io/ios/app/cinemath/id6742495949) | 5.0 (10) | Free | Utilities | ## More apps by Nelcea - [AWG Convert](https://appshunter.io/ios/app/awg-convert/id288990217) - [VideoCalc](https://appshunter.io/ios/app/videocalc/id296544878) All apps by Nelcea: https://appshunter.io/developer/1694672221 --- *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 2026-08-14.*