The download button opens the iTunes App Store, where you
may continue the download process. You must have iTunes installed with an
active iTunes account in order to download and install the software. This
download may not be available in some countries.
Capture sound and show the main/base frequency and note/cent.It also visualize the sound in frequency domain.Good for practice pitch accuracy and for fun!* Adjustable A4 (La, A440) frequency to adapt to multiple musical standards* This program just show the note and frequency with highest energy. This maybe not the real base frequency, but should be highly related.* Optional A-weighting for better accuracy.