Sound spectrum analyzer
From Eric
(Difference between revisions)
m |
|||
| (One intermediate revision not shown) | |||
| Line 1: | Line 1: | ||
| - | + | 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: | ||
[[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]] | ||
| + | |||
| + | The initial setup on a breadboard: | ||
| + | [[File:sound_spec_anal_breadboard.jpg|400px|thumb|none]] | ||
| + | |||
| + | And some pictures of the final result using PCBs: | ||
| + | [[File:sound_spec_anal_live.jpg|400px|thumb|none]] | ||
| + | [[File:sound_spec_anal_pcbs.jpg|400px|thumb|none]] | ||
Latest revision as of 09:02, 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:
The initial setup on a breadboard:
And some pictures of the final result using PCBs:
