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Guitar and Bass Tuner Library for Teensy 3.1 v2.0
Software algorithm (YIN) for guitar and bass tuning using a Teensy Audio Library. This audio object’s algorithm is somewhat memory and processor hungry but will allow you to detect lower frequencies than the Audio library’s Goertzel algorithm will.
Hookup Guide - 1.6v DC Bias and High Pass Filter - No Amplification
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|------------/\/\/\----------| _______ |
| 47K | |` ` ` `| |
|---)|+--| | | ` ` ` | |
| 10uF | | |` ` ` `| |
| | | | ` ` ` | |
_______________ |-/\/\/\-| | |` ` ` `| |
|GND |___| Vin| | 2.2K | | | ` ` ` | |
|0 T AGND|<-| | | |` ` ` `| |
|1 E 3.3V|<--/\/\/\--*--/\/\/\---| | | ` ` ` | |
|2 E 23| 10K 47K | | |` ` ` `| |
|3 N 22| | | | ` ` ` | |
|4 S 21| | | |`_`_`_`| |
|5 Y 20| | | | :`| |
|6 3.1 19| | | | S`| |
|7 18| | | | H`| |
|8 17| | | | I`| |
|9 A2/16|<----------------------*--+|(--* | E`|<-------|
|10 --- 15| 10uF | | L`|
|11 |(`)| 14| | | D`|
|12 --- 13| | | :`|
--------------- | |===|
| \_/
| /T\
| - I -
| \ P /
|---->\_/