From 593e1cbe3470f409c19a7f06f5d10c6f5677361a Mon Sep 17 00:00:00 2001
From: Ludovic Pouzenc <ludovic@pouzenc.fr>
Date: Sat, 16 Jun 2012 21:16:46 +0000
Subject: Bon, calcul du niveau sonore dans la plage 200 à 2000Hz en reprennant
 les choses calmement. Il n'est pas impossible que les valeurs soient bonnes
 :P
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git-svn-id: file:///var/svn/2012-violon-leds/trunk@19 6be1fa4d-33ac-4c33-becc-79fcb3794bb6
---
 tests/test6/fft.h | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)
 create mode 100644 tests/test6/fft.h

(limited to 'tests/test6/fft.h')

diff --git a/tests/test6/fft.h b/tests/test6/fft.h
new file mode 100644
index 0000000..6066d52
--- /dev/null
+++ b/tests/test6/fft.h
@@ -0,0 +1,19 @@
+#ifndef FFT_H
+#define FFT_H
+
+/* Everything here comes from Audacity 1.3.13
+ (orignally in C++ and with more genericity and functionnality)
+ Original Author : Dominic Mazzoni
+ Licenced under GPL 2.0 (see LICENCE)
+*/
+
+#define PSNumS 256
+#define PSHalf 128
+void PowerSpectrum(float In[PSNumS], float Out[PSHalf]);
+
+void FFT(int NumSamples, int InverseTransform,
+	float *RealIn, float *ImagIn, float *RealOut, float *ImagOut);
+void DeinitFFT();
+
+#endif
+
-- 
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