Sound spectrum analyzer

From Eric

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[[File:sound_spec_anal_live.jpg|400px|thumb|none]]
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The audio spectrum analyzer is composed of three main components :
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[[File:sound_spec_anal_pcbs.jpg|400px|thumb|none]]
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* an electret microphone ands its pre-amplifier
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[[File:sound_spec_anal_breadboard.jpg|400px|thumb|none]]
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* a BA3830S spectrum analyzer chip
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* a set of LM3914 led drivers.
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Here are the schematics:  
[[File:sound_spec_anal_schematics_1.jpg|400px|thumb|none]]  
[[File:sound_spec_anal_schematics_1.jpg|400px|thumb|none]]  
[[File:sound_spec_anal_schematics_2.jpg|400px|thumb|none]]
[[File:sound_spec_anal_schematics_2.jpg|400px|thumb|none]]
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And some pictures of the result:
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[[File:sound_spec_anal_live.jpg|400px|thumb|none]]
 +
[[File:sound_spec_anal_pcbs.jpg|400px|thumb|none]]
 +
[[File:sound_spec_anal_breadboard.jpg|400px|thumb|none]]

Revision as of 09:01, 21 February 2021

The audio spectrum analyzer is composed of three main components :

  • an electret microphone ands its pre-amplifier
  • a BA3830S spectrum analyzer chip
  • a set of LM3914 led drivers.

Here are the schematics:

Sound spec anal schematics 1.jpg
Sound spec anal schematics 2.jpg

And some pictures of the result:

Sound spec anal live.jpg
Sound spec anal pcbs.jpg
Sound spec anal breadboard.jpg
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