Audiofile Calc — LUFS, dB, Hz4.3 - App Store
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Publisher Description
The audio engineering calculator you've relied on for years - completely reimagined.
Audiofile Calc has been rebuilt from the ground up with a modern interface, ergonomic controls, and a new Calc Pro tier that takes your calculations further. Now with a free dB Converter for instant decibel-to-ratio conversions, and Varispeed - the pitch shift BPM calculator our users asked for.
FREE CALCULATORS
Length
- Note Length
- Bar Length
- Song Length
- Beats to Tempo
- Time to Samples
- Samples to Time
- Timecode to Time
- Compare Tempos
- Change Tempo
- Add Times
Pitch
- Note Name to Frequency / MIDI / Wavelength
- Frequency to Note Name / MIDI / Wavelength
- Wavelength to Frequency / Note Name / MIDI
Timecode
- Frames to Timecode
- Convert Timecode
- Change Timecode
Electric
- Compare Power
- Compare Voltage
- NEW: dB Converter - turn any decibel value into its voltage (amplitude) and power ratios
Acoustics
- Distance to Time
- Delay
- Time to Distance
- Sound Pressure Level (SPL)
- Panning
- PAG-NAG
Files
- File Size
CALC PRO - $4.99 one-time
Unlock a suite of advanced calculators built for professional engineers and producers:
- NEW: Varispeed - tape-style and sampler speed changes, where tempo and pitch are coupled. Enter any BPM change and get the pitch shift in semitones, sampler-ready semitones + cents, and speed percentage
- LUFS Target - streaming loudness compliance for Spotify, Apple Music, YouTube, and broadcast (EBU R128)
- Nyquist Frequency - sample rate requirements, aliasing thresholds, anti-aliasing filter cutoffs
- Equal Loudness - Fletcher-Munson curves, equal-loudness compensation
- Cable Attenuation / Impedance - signal loss over cable runs, impedance matching
- Batch Conversion - sweep values through any calculator simultaneously
- PDF Share - export any calculation as a clean, professional PDF ready for clients, session notes, or technical documentation
One-time purchase. No subscription.
Audiofile is a boutique technology company building precision tools for the world's musicians and engineers.
Version History Two new calculators — one for everyone, one for Calc Pro.
New in this release:
– dB Converter (free) — turn any decibel value into its voltage (amplitude) and power ratios. The perfect companion to Compare Power and Compare Voltage, which go the other direction
– Varispeed (Calc Pro) — the pitch shift BPM calculator you asked for. Enter a source and target tempo and get the pitch shift in semitones, sampler-ready semitones + cents, and the speed change percentage for tape-style and sampler speed changes
Calc Pro keeps growing — one purchase, every new pro calculator included. 4.3 Jun 11 Completely reimagined for modern iOS.
Rebuilt from the ground up with a redesigned interface, ergonomic bottom toolbar, and full support for current iPhone and iPad displays.
New in this release:
– Calc Pro: EBU R128/LUFS, sampling theory, equal-loudness contours, cable attenuation, batch conversion, and PDF share
– Delay calculator with time and samples
– Keyboard input for running on macOS
– Bottom toolbar — all actions within thumb reach on any screen size
– Full calculator name displayed in navigation
– Refreshed visual design throughout — with a precision adjustment of the custom numpad 4.2 Apr 23 Completely reimagined for modern iOS.
Rebuilt from the ground up with a redesigned interface, ergonomic bottom toolbar, and full support for current iPhone and iPad displays.
New in this release:
– Calc Pro: EBU R128/LUFS, sampling theory, equal-loudness contours, cable attenuation, batch conversion, and PDF share
– Bottom toolbar — all actions within thumb reach on any screen size
– Full calculator name displayed in navigation
– Refreshed visual design throughout — with a precision adjustment of the custom numpad 4.1 Mar 19 Completely reimagined for modern iOS.
Rebuilt from the ground up with a redesigned interface, ergonomic bottom toolbar, and full support for current iPhone and iPad displays.
New in this release:
– Calc Pro: EBU R128/LUFS, sampling theory, equal-loudness contours, cable attenuation, batch conversion, and PDF share
– Bottom toolbar — all actions within thumb reach on any screen size
– Full calculator name displayed in navigation
– Refreshed visual design throughout 4.0 Mar 18 Improve File Size calculation 32-bit option, and add 64-bit option 3.7.1 01/26/2021 Improved dark mode and UI support for all currently supported iPhone form factors 3.7.0 01/23/2021 Why not run Calc in an iPad sidebar or overlay? Well, now you can! Enjoy. 3.6.0 12/01/2017 Audiofile Calc 3.5 has been updated for iOS 11! 3.5.0 09/23/2017 Audiofile Calc has been completely redesigned for iOS 7!
Version 3.0.2 integrates minor user interface improvements. 3.0.2 11/01/2013 Audiofile Calc has been completely redesigned for iOS 7!
Version 3.0.1 brings minor user interface improvements. 3.0.1 10/25/2013 Audiofile Calc has been completely redesigned for iOS 7! 3.0.0 10/22/2013 - minor bug fixes 2.6.1 02/26/2013 - support for 4" screens
- bug fixes 2.6.0 02/12/2013 - now completely free with no ads
- updated "About" screen 2.5.0 08/03/2011 - fixes a rare display issue with the keypad 2.1.1 08/18/2010 - now free to download and fully iAd-suported
- comprehensive iOS 4 support including updated graphics
- added Subtract Times calculator
- added ability to mark calculators as Favorites
- improved performance 2.1.0 08/10/2010 - resolved an issue with some region formats 2.0.1 05/26/2010 - completely redesigned user interface
- improved input including number pad & tap tempo
- added Sum Times calculator
- added Time to Samples calculator
- in-app help content for each calculator 2.0.0 04/29/2010 - added hint sheet
- support for metric units in calculators that include distance
- corrected display for timecode calculators set to 29.97 fps
- improved About page 1.0.1 12/31/2009 1.0.0 12/04/2009
About Audiofile Calc — LUFS, dB, Hz
The company that develops Audiofile Calc — LUFS, dB, Hz is Audiofile Engineering, LLC. The latest version released by its developer is 4.3.
To install Audiofile Calc — LUFS, dB, Hz on your iOS device, just click the green Continue To App button above to start the installation process. The app is listed on our website since 2026-10-13 and was downloaded 0 times. We have already checked if the download link is safe, however for your own protection we recommend that you scan the downloaded app with your antivirus. Your antivirus may detect the Audiofile Calc — LUFS, dB, Hz as malware if the download link is broken.
How to install Audiofile Calc — LUFS, dB, Hz on your iOS device:
- Click on the Continue To App button on our website. This will redirect you to the App Store.
- Once the Audiofile Calc — LUFS, dB, Hz is shown in the iTunes listing of your iOS device, you can start its download and installation. Tap on the GET button to the right of the app to start downloading it.
- If you are not logged-in the iOS appstore app, you'll be prompted for your your Apple ID and/or password.
- After Audiofile Calc — LUFS, dB, Hz is downloaded, you'll see an INSTALL button to the right. Tap on it to start the actual installation of the iOS app.
- Once installation is finished you can tap on the OPEN button to start it. Its icon will also be added to your device home screen.
Program Details
System requirements
Download information
Pricing
Version History
version 4.3
posted on 2026-10-13
Version History Two new calculators — one for everyone, one for Calc Pro.
New in this release:
– dB Converter (free) — turn any decibel value into its voltage (amplitude) and power ratios. The perfect companion to Compare Power and Compare Voltage, which go the other direction
– Varispeed (Calc Pro) — the pitch shift BPM calculator you asked for. Enter a source and target tempo and get the pitch shift in semitones, sampler-ready semitones + cents, and the speed change percentage for tape-style and sampler speed changes
Calc Pro keeps growing — one purchase, every new pro calculator included. 4.3 Jun 11 Completely reimagined for modern iOS.
Rebuilt from the ground up with a redesigned interface, ergonomic bottom toolbar, and full support for current iPhone and iPad displays.
New in this release:
– Calc Pro: EBU R128/LUFS, sampling theory, equal-loudness contours, cable attenuation, batch conversion, and PDF share
– Delay calculator with time and samples
– Keyboard input for running on macOS
– Bottom toolbar — all actions within thumb reach on any screen size
– Full calculator name displayed in navigation
– Refreshed visual design throughout — with a precision adjustment of the custom numpad 4.2 Apr 23 Completely reimagined for modern iOS.
Rebuilt from the ground up with a redesigned interface, ergonomic bottom toolbar, and full support for current iPhone and iPad displays.
New in this release:
– Calc Pro: EBU R128/LUFS, sampling theory, equal-loudness contours, cable attenuation, batch conversion, and PDF share
– Bottom toolbar — all actions within thumb reach on any screen size
– Full calculator name displayed in navigation
– Refreshed visual design throughout — with a precision adjustment of the custom numpad 4.1 Mar 19 Completely reimagined for modern iOS.
Rebuilt from the ground up with a redesigned interface, ergonomic bottom toolbar, and full support for current iPhone and iPad displays.
New in this release:
– Calc Pro: EBU R128/LUFS, sampling theory, equal-loudness contours, cable attenuation, batch conversion, and PDF share
– Bottom toolbar — all actions within thumb reach on any screen size
– Full calculator name displayed in navigation
– Refreshed visual design throughout 4.0 Mar 18 Improve File Size calculation 32-bit option, and add 64-bit option 3.7.1 01/26/2021 Improved dark mode and UI support for all currently supported iPhone form factors 3.7.0 01/23/2021 Why not run Calc in an iPad sidebar or overlay? Well, now you can! Enjoy. 3.6.0 12/01/2017 Audiofile Calc 3.5 has been updated for iOS 11! 3.5.0 09/23/2017 Audiofile Calc has been completely redesigned for iOS 7!
Version 3.0.2 integrates minor user interface improvements. 3.0.2 11/01/2013 Audiofile Calc has been completely redesigned for iOS 7!
Version 3.0.1 brings minor user interface improvements. 3.0.1 10/25/2013 Audiofile Calc has been completely redesigned for iOS 7! 3.0.0 10/22/2013 - minor bug fixes 2.6.1 02/26/2013 - support for 4" screens
- bug fixes 2.6.0 02/12/2013 - now completely free with no ads
- updated "About" screen 2.5.0 08/03/2011 - fixes a rare display issue with the keypad 2.1.1 08/18/2010 - now free to download and fully iAd-suported
- comprehensive iOS 4 support including updated graphics
- added Subtract Times calculator
- added ability to mark calculators as Favorites
- improved performance 2.1.0 08/10/2010 - resolved an issue with some region formats 2.0.1 05/26/2010 - completely redesigned user interface
- improved input including number pad & tap tempo
- added Sum Times calculator
- added Time to Samples calculator
- in-app help content for each calculator 2.0.0 04/29/2010 - added hint sheet
- support for metric units in calculators that include distance
- corrected display for timecode calculators set to 29.97 fps
- improved About page 1.0.1 12/31/2009 1.0.0 12/04/2009
version 4.2
posted on 2026-06-06
Version History Completely reimagined for modern iOS.
Rebuilt from the ground up with a redesigned interface, ergonomic bottom toolbar, and full support for current iPhone and iPad displays.
New in this release:
– Calc Pro: EBU R128/LUFS, sampling theory, equal-loudness contours, cable attenuation, batch conversion, and PDF share
– Delay calculator with time and samples
– Keyboard input for running on macOS
– Bottom toolbar — all actions within thumb reach on any screen size
– Full calculator name displayed in navigation
– Refreshed visual design throughout — with a precision adjustment of the custom numpad 4.2 Apr 23 Completely reimagined for modern iOS.
Rebuilt from the ground up with a redesigned interface, ergonomic bottom toolbar, and full support for current iPhone and iPad displays.
New in this release:
– Calc Pro: EBU R128/LUFS, sampling theory, equal-loudness contours, cable attenuation, batch conversion, and PDF share
– Bottom toolbar — all actions within thumb reach on any screen size
– Full calculator name displayed in navigation
– Refreshed visual design throughout — with a precision adjustment of the custom numpad 4.1 Mar 19 Completely reimagined for modern iOS.
Rebuilt from the ground up with a redesigned interface, ergonomic bottom toolbar, and full support for current iPhone and iPad displays.
New in this release:
– Calc Pro: EBU R128/LUFS, sampling theory, equal-loudness contours, cable attenuation, batch conversion, and PDF share
– Bottom toolbar — all actions within thumb reach on any screen size
– Full calculator name displayed in navigation
– Refreshed visual design throughout 4.0 Mar 18 Improve File Size calculation 32-bit option, and add 64-bit option 3.7.1 01/26/2021 Improved dark mode and UI support for all currently supported iPhone form factors 3.7.0 01/23/2021 Why not run Calc in an iPad sidebar or overlay? Well, now you can! Enjoy. 3.6.0 12/01/2017 Audiofile Calc 3.5 has been updated for iOS 11! 3.5.0 09/23/2017 Audiofile Calc has been completely redesigned for iOS 7!
Version 3.0.2 integrates minor user interface improvements. 3.0.2 11/01/2013 Audiofile Calc has been completely redesigned for iOS 7!
Version 3.0.1 brings minor user interface improvements. 3.0.1 10/25/2013 Audiofile Calc has been completely redesigned for iOS 7! 3.0.0 10/22/2013 - minor bug fixes 2.6.1 02/26/2013 - support for 4" screens
- bug fixes 2.6.0 02/12/2013 - now completely free with no ads
- updated "About" screen 2.5.0 08/03/2011 - fixes a rare display issue with the keypad 2.1.1 08/18/2010 - now free to download and fully iAd-suported
- comprehensive iOS 4 support including updated graphics
- added Subtract Times calculator
- added ability to mark calculators as Favorites
- improved performance 2.1.0 08/10/2010 - resolved an issue with some region formats 2.0.1 05/26/2010 - completely redesigned user interface
- improved input including number pad & tap tempo
- added Sum Times calculator
- added Time to Samples calculator
- in-app help content for each calculator 2.0.0 04/29/2010 - added hint sheet
- support for metric units in calculators that include distance
- corrected display for timecode calculators set to 29.97 fps
- improved About page 1.0.1 12/31/2009 1.0.0 12/04/2009
version 3.7.1
posted on 2021-01-26
Improve File Size calculation 32-bit option, and add 64-bit option
version 3.7.1
posted on 2021-01-26
Jan 26, 2021 Version 3.7.1
Improve File Size calculation 32-bit option, and add 64-bit option
version 3.7.0
posted on 2021-01-23
Jan 23, 2021 Version 3.7.0
Improved dark mode and UI support for all currently supported iPhone form factors
version 3.6.0
posted on 2017-12-01
Dec 1, 2017 Version 3.6.0
Why not run Calc in an iPad sidebar or overlay? Well, now you can! Enjoy.
version 3.6.0
posted on 2017-12-01
1 Dec 2017 Version 3.6.0
Why not run Calc in an iPad sidebar or overlay? Well, now you can! Enjoy.
version 3.0.2
posted on 2009-12-04
version 3.6.0
posted on 1970-01-01
1. Dez. 2017 Version 3.6.0
Why not run Calc in an iPad sidebar or overlay? Well, now you can! Enjoy.
version 3.6.0
posted on 1970-01-01
2017年12月1日 Version 3.6.0
Why not run Calc in an iPad sidebar or overlay? Well, now you can! Enjoy.
Disclaimer
Official App Store Link
We do not host Audiofile Calc — LUFS, dB, Hz on our servers. We did not scan it for viruses, adware, spyware or other type of malware. This app is hosted by Apple and passed their terms and conditions to be listed there. We recommend caution when installing it.
The App Store link for Audiofile Calc — LUFS, dB, Hz is provided to you by apps112.com without any warranties, representations or guarantees of any kind, so access it at your own risk.
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