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add notes from testing the speaker with an espotek labrador

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Vineet K 2024-03-30 13:00:44 -04:00 committed by kar
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notes.md
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@ -21,3 +21,13 @@
## 2024-03-28
![](2024-03-28_notes.jpg)
## 2024-03-30
- the speaker was tested with a function generator (from the
EspoTek Labrador) outputting a square wave of varying frequency
- it is painful above a frequency of 12 kHz and just creates clicks
below 30 Hz
- it is louder at certain frequencies and quieter at others, and this
is not a linear relationship
- the speaker's datasheet has a graph of this which can be used to
adjust the speaker's volume at the problematic frequencies