Write the next sentence in this paragraph:

How to filter the vuvuzela noise
Locate the equalizer.
Either use equalizer on your stereo if you're using that to listen with, or the one on your tv, if it has one. If needed, read the manual accompanying the stereo or tv for instructions on how to adjust the equalizer settings.

Pick from:
[a]. Multiply the number of decimal places in your diaphragm. It's easiest to do this by multiplying 1 over 2, with 2 being the number of decimal points..
[b]. Select a portable equalizer if you are using a speaker system. Portable equalizers also have the ability to be designed for lower frequency settings, too, so you would want to browse the hardware section of your inventory online to see how it's installed..
[c]. Adjust the hardware settings of your equalizer. It is recommended to turn the frequency down as low as your equipment can go; try lowering sound level of the frequencies 235 hz and 465 hz with about 40 decibels..
[d]. Turn your thermostat to the lowest possible setting. Go to your bedroom and take off your clothing..
[c].