![](https://marcuspainter.com/wp-content/uploads/2024/02/tracebook-iphone15-web-520x1024.png)
Tracebook
Tracebook is a database of loudspeaker measurements. The frequency range of the speaker and delay characteristics are measured. The measurements are known are traces.
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![](https://marcuspainter.com/wp-content/uploads/2024/02/speed-of-speed-iphone15-web-520x1024.png)
Speed of Sound
This app calculates the speed of sound according to your local weather conditions.
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