The basic way to calculate your maximum heart rate is to subtract your age from 220. For example, if you're 45 years old, subtract 45 from 220 to get a maximum heart rate of 175.
If you have an eighth-inch jack, all you've got to do is plug it into this port and start testing sound. 1  If you have a USB jack on the end of your microphone, most computers will have two or more USB ports on the side, or the back of the computer. 2  Simply plug the USB jack into one of these ports.
Follow the steps below to begin. Step 1: Install the drivers to your MIDI USB keyboard or instrument. You may want to refer to the documentation that came with your keyboard. Although each keyboard setup is slightly different, here are the steps I took using my Roland Fantom X8.