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I would think a click would just be a very low frequency square wave. To make a metronome it should be as easy as setting up the 8bit PWM in a microcontroller and setting it to trigger at the frequency you want for a very short time. Mixing it with another signal could probably be done on the atmel too provided you had a DAC. It would look somehting like this I think Source 1->ADC(within the microcontroller if it is fast enough)->PWM Source->Add ADC value with click value->External Dac That is my great flowchart! Edit: Remember you want to sample the ADC at 2x your highest frequency at least otherwise you will be losing tons of high frequency data.
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Nov 9, 2008 20:18
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| # ¿ May 21, 2024 22:43 |
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If any of you are interested in headphone amplifiers or Class D amplifiers I have just started a project over at HeadWize, one of the cool DIY headphone amplifier forums. I am hoping to have revision 1 of the design done by this weekend and hopefully get some prototype boards made by the end of next week. And for what it is worth the post I made was pretty informative on the Pros and Cons of class D amplification so IMO it is worth a read if you are interested in the technology behind amplifiers. http://headwize.com/ubb/showpage.php?fnum=3&tid=7767&fpage=9999 Now many of you who do know a thing or two about amplifiers will ask why are you going to make a design that powerful for headphones and the answer is simply because this is a technology that is incredibly underrepresented in the audio industry because there is a stigma that it sounds bad, when in reality a good design can sound better than the best Class AB amplifier on the market.
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Mar 10, 2009 20:42
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