#!/bin/bash -
############################################################
# This script is destructive recursively, to any files  
# and directories, from where it is run from. Backup first!
# All samples should be named like "blah 12.wav" or 
# "blah 25.wav" etc "blah n.wav" where n is the note number.
# It should be run from the folder above the folders with 
# the samples in.
#
# This script will play samples out and record them back in
# capturing external fx and also create release samples 
# from the captured fx samples (for reverb). It will remove
# silence from the ends of the samples (fx'ed and non fx'ed).
# Sounds should not have gaps in the middle of them as it
# will count everything after as silence for that sample.It
# will also put all samples through a slight limiter,
# normalise them and dither them. It was made to record an
# external reverb unit on guitar samples and create release
# samples to be used in gigasudio/linuxsampler. It should
# work on anything else that fits this description (with a
# few tweaks, such as silence detection level etc or
# commenting out lines i.e. if no release samples are needed).
#
# sh GigaSampleSort.sh   (from top sample folder) or
# sh GigaSampleSort.sh 2>&1 | tee /tmp/output2.txt (for log)
############################################################

#change permissions of all directories recursively
/usr/bin/find . -type d -exec /bin/chmod 755 {} \;

#change permissions of all files recursively
/usr/bin/find . -type f -exec /bin/chmod 644 {} \;

#find all .wav files recursively from current directory
/usr/bin/find . -name "*.wav" > list

#replace spaces with ? in list filenames
/bin/sed 's/\ /?/' list >list2

#remove ./ from list2 filenames
/bin/sed 's/.\///' list2 >alloriginalsamples	

#copy directory structure to new folder tailrev.
/usr/bin/find . -type d -print | /bin/cpio -pdumv tailrev

for i in `/bin/cat alloriginalsamples`
do 

#convert to signed 16bit wavs ready for ssrc
sox "$i" -s -2 "$i".wav

#increase vol and limit peaks then remove silence from
#end of files. Back slash at end of line makes 2 lines as 1
/usr/bin/sox "$i".wav "$i" vol 1.5 amplitude 0.2 		\
silence 0 1 00:00:00.1 -46d

#normalize and dither
/usr/bin/ssrc --normalize --twopass --dither 3 		\
--pdf 2 "$i" "$i".wav
/bin/mv "$i".wav "$i"

#chop and fade out tailrev samples
/usr/bin/sox "$i" tailrev/"$i" fade p 0 0:00.5 0:00.125
done

#list all .wav files recursively from current directory
/usr/bin/find . -name "*.wav" > list

#replace spaces with ? in list filenames
/bin/sed 's/\ /?/' list >list2

#remove ./ from list2 filenames
/bin/sed 's/.\///' list2 >alldrysamples

#copy directory structure to new folder reverb.
/usr/bin/find . -type d -print | /bin/cpio -pdumv reverb

for i in `cat alldrysamples`
do 

#play all samples out of channel 3 and record in channel 2
#and stop recording when silence is detected (reverb hooked 
#to 3 out and returns to in2). save in reverb folder.
/usr/bin/sox "$i" -c 1 -r 44100 -2 -s -t alsa sox3 | 		\
/usr/bin/sox -c 1 -r 44100 -2 -s -t alsa sox2 -t wav -r 44100 	\
-2 -s reverb/"$i" silence 0 1 00:00:00.1 -70d
done

#list all .wav files recursively from reverb directory
/usr/bin/find ./reverb -name "*.wav" >list

#replace spaces with ? in list filenames
/bin/sed 's/\ /?/' list >list2

#remove ./ from list2 filenames
/bin/sed 's/.\///' list2 >allreverbsamples

for i in `/bin/cat allreverbsamples`
do 

#increase vol and limit peaks (of all Reverbed)
/usr/bin/sox "$i" "$i".wav vol 1.5 amplitude 0.2

#normalize all reverb samples
/usr/bin/ssrc --normalize --twopass "$i".wav "$i"
/bin/rm "$i".wav
done

/usr/bin/find ./reverb/tailrev -name "*.wav" >list	

#replace spaces with ? in list filenames
/bin/sed 's/\ /?/' list >list2

#remove ./ from list2 filenames
/bin/sed 's/.\///' list2 >allreverbtailsamples

for i in `/bin/cat allreverbtailsamples`
do 

#trim first 0.51 seconds off beginning leaving just tail
/usr/bin/sox "$i" "$i".wav trim 0:00.51

#fade in fast the start of reverb tail samples to avoid clicks
/usr/bin/sox "$i".wav "$i" fade 0:00.05
/bin/rm "$i".wav
done

for i in `/bin/cat allreverbsamples`
do 

#dither all reverb samples
/usr/bin/ssrc --twopass --dither 3 --pdf 2 "$i" "$i".wav
/bin/mv "$i".wav "$i"

#rename reverb sample from "blah nn.wav" to "blahReverb nn.wav"
/usr/bin/rename \  Reverb\  "$i"
done

cd reverb/tailrev

#rename all folders in tailrev to include reverb
for i in `/bin/ls`; do /bin/mv "$i" "$i"ReverbTail; done

cd ..

#name folders in tailrev to include ReverbTail
for i in `/bin/ls`; do /bin/mv "$i" "$i"Reverb; done

#back to main folder
cd ..

/bin/mv reverb/tailrevReverb reverb/tailrev

/usr/bin/find ./reverb/tailrev -name "*.wav" >list

#replace spaces with ? in list filenames	
/bin/sed 's/\ /?/' list >list2

#remove ./ from list2 filenames
/bin/sed 's/.\///' list2 >allreverbtailsamples

for i in `/bin/cat allreverbtailsamples`
do

#name files below tailrev to include ReverbTail
/usr/bin/rename Reverb\  ReverbTail\  "$i"
done


#clean up
/bin/rm all*
/bin/rm list*
/bin/rm -R tailrev