openwrt-packages/nanonote-files/base-files/usr/bin/wav2png

#!/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' w l lt 2" | gnuplot
nanonote-files: add wav2png simple script file 2012-03-06 18:28:58 +08:00			`#!/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 ';'`

nanonote wav2png: draw lines instead points thanks jirka 2012-03-08 10:10:00 +08:00			`echo -e "set terminal png; set title '$FREQ';set output '$PNG'; plot '$DAT.clean' w l lt 2" \| gnuplot`