From Audiofile Engineering:
Audiofile Calc is a full-featured musical calculator and an indispensable utility for engineers, musicians, music students and teachers, producers, DJs, video and broadcast engineers and live sound engineers. Audiofile Calc contains 23 easy-to-use calculators.Audiofile Calc is a 100% free app created by Audiofile, an industry-leading, boutique technology company building apps to power the world's musicians and engineers.Calculators included in Audiofile Calc:Length- Note Length- Bar Length- Song Length- Beats to Tempo- Time to Samples- Samples to Time- Compare Tempos- Change Tempo- Sum Times- Subtract TimesPitch- Note Name to- MIDI Note to- Frequency to- Wavelength toTimecode- Frames to Timecode- Convert Timecode- Change TimecodeElectric- Compare Power- Compare VoltageAcoustics- Distance to Time- Time to Distance- Sound Pressure Level (SPL)- PanningFiles- File Size
What's new in this version:
Audiofile Calc has been completely redesigned for iOS 7! Version 3.0.2 integrates minor user interface improvements.