From f0ff76ceb2e5e43f865aea76f5915fac77de07a4 Mon Sep 17 00:00:00 2001
From: Xiangfu Liu <xiangfu@sharism.cc>
Date: Tue, 6 Mar 2012 18:28:58 +0800
Subject: [PATCH] nanonote-files: add wav2png simple script file

---
 nanonote-files/script-files/usr/bin/wav2png | 14 ++++++++++++++
 1 file changed, 14 insertions(+)
 create mode 100755 nanonote-files/script-files/usr/bin/wav2png

diff --git a/nanonote-files/script-files/usr/bin/wav2png b/nanonote-files/script-files/usr/bin/wav2png
new file mode 100755
index 0000000..d98adcd
--- /dev/null
+++ b/nanonote-files/script-files/usr/bin/wav2png
@@ -0,0 +1,14 @@
+#!/bin/sh
+#usage: wav2png.sh file.wav
+
+BASE=${1%.wav}
+PNG=$BASE.png
+WAV=$BASE.wav
+DAT=$BASE.dat
+
+#echo $BASE,$PNG,$WAV,$DAT
+sox $WAV $DAT
+grep -v '^;' $DAT >$DAT.clean
+FREQ=`head -1 $DAT|tr -d ';'`
+
+echo -e "set terminal png;set title '$FREQ';set output '$PNG'; plot '$DAT.clean'" | gnuplot