X-Git-Url: https://git.harvie.cz/?a=blobdiff_plain;f=c%2Fgoertzel%2Fguitar-tuner.sh;fp=c%2Fgoertzel%2Fguitar-tuner.sh;h=2f3dba4a9c4ba04cb08f536cbd3f7172b99871a3;hb=2a1679b4652e128ebdcc270d4667e217f309e58b;hp=0000000000000000000000000000000000000000;hpb=24d4c0d4da08ec54f5529f9688414fe2585bc108;p=mirrors%2FPrograms.git

diff --git a/c/goertzel/guitar-tuner.sh b/c/goertzel/guitar-tuner.sh
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+++ b/c/goertzel/guitar-tuner.sh
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+#!/bin/sh
+#Example of guitar tuner using goertzel:
+#165Hz = Low E
+#How to tune:
+#There are 3 frequencies, you have to make the middle one (target frequency) most loud
+#and the other two surrounding it shoud show approximately same intensity
+
+arecord -r 44100 | ./goertzel -r 44100 -f 150 -f 165 -f 180 | ./histogram.pl