![]() Most of this error is above 4kHz and is a soft error. ![]() Note that your own custom microphone will not be calibrated, so expect a ☓-4dB error vs. Check out our page on building your own microphone for information on building a quality microphone for under 5 dollars. If your don't have a microphone for testing, you may want to build your own instead of spending a lot of money for one. You will also need software that generates test tones at different frequencies and then reads back those tones using the microphone connected to the computer. You will need a microphone and a computer with a microphone input & headphone/line-out output. ![]() Now that you have built your speakers, it is time to test them.
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