# Zeitmaschine — Audio engineering calculator

> Audio engineering calculator (iPhone/iPad app by Grohe & Giannakakis Applications GbR.)

- Source: https://appshunter.io/ios/app/zeitmaschine/id1185329513 (this page in markdown: same URL + `.md`)
- Developer: [Grohe & Giannakakis Applications GbR](https://appshunter.io/developer/1185329512)
- Category: Music, Utilities
- Price: $3.99
- Age rating: 4+
- Requires: iOS 15.0 · 152 MB
- Released: 2017-05-16
- Data updated: 2026-05-17
- User reviews in markdown: https://appshunter.io/ios/app/zeitmaschine/id1185329513/reviews.md

## What is Zeitmaschine?

Zeitmaschine is an audio engineering calculator with 4 different modes to compute tempo and distance related delay times, convert time related values and to calculate file sizes.

DELAY TIME MODE
Zeitmaschine is a delay time calculator with all divisors and multipliers relative to the time measurement you have done.
Calculate delay times in milliseconds (ms) and beats per minute (bpm).
Set the desired tempo via the tab-button, or write it down in ms/bpm, all options will be computed and a huge amount of 21 matched delay times will shown up at once, including dotted and triplet values. Take these determined times and put it to the delay time display of your effect or sound device, use it to set the right attack and release times of your dynamics (compressor/gate) or set the perfect pre delay time of your reverbs in addiction to the song tempo.
Works with virtual-, 19“-, or stage devices (display needed).
Zeitmaschine is a pretty quick app, brilliant for live engineering, where you can choose the perfect delay time in seconds, without scrolling the knobs of your FX-device back and forth. 
On the other hand you got an ultimate overview of alternative delay times, that´s great for doing experiments while mixing a track in a recording studio or in your DAW. You can use it on drums, vocals, guitars, ….you name it, and give them a complete new rhythmical structure.

CONVERTER MODE
Convert beats per minute to milliseconds, samples & hertz, depending on the audio sample rate.

FILESIZE MODE
Set the duration, bit depth, sample rate and channel number and get the filesize information for uncompressed files. 
Add the kbps rate to get the filesize for compressed files.

DELAY LINE MODE
Set the distance to main P.A. in meter or feet, add the temperature in Celsius or Fahrenheit and get the right delay times to delay the main P.A. to the backline and the line P.A. to the main P.A.


## Version history (last 5 releases)

### 3.2.2 — 2025-12-08

> Now with frame
> Application logo no longer moves
> Compliance with Apple requirements

### 3.2.1 — 2024-08-25

UI improvements

### 3.2.0 — 2024-07-13

- Segment's functionality adjusted, continuous in-/decreasing.
- Fixed BpM delay line calculation issue.
- iPad UI improvements 
- BpM calculation issue fixed, 
- UI improvements for tablets

### 3.1.8 — 2023-12-24

- Functionality of the segments adjusted
- The appearance of the tap button was adjusted, when pressed to reset
- Fixed some small bugs

### 3.1.5 — 2023-12-22

- Functionality of the segments adjusted
- The appearance of the tap button was adjusted, when pressed to reset
- Fixed some small bugs

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## More apps by Grohe & Giannakakis Applications GbR

- [Visual optical metronome](https://appshunter.io/ios/app/visual-optical-metronome/id1187256025)
- [Trace Sequenced Sample Box](https://appshunter.io/ios/app/trace-sequenced-sample-box/id6443663264)

All apps by Grohe & Giannakakis Applications GbR: https://appshunter.io/developer/1185329512

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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 2026-05-17.*