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# This script takes all the files in the specified directory, modify their scales, 
# and writes new files to a new folder called "output", which it automatically creates. 
# The input directory is where the sound files are; the default option is where this script is.
# Peak is your desired maximum amplitude. 
# version 4/7/2009

form Files
	sentence InputDir ./
	positive Peak 0.80
endform

# Create an output directory

createDirectory ("output")

# this lists everything in the directory into what's called a Strings list 
# and counts how many there are

Create Strings as file list... list 'inputDir$'*.wav
numberOfFiles = Get number of strings

# then it loops through, doing some actions for every file in the list

for ifile to numberOfFiles

	# opens each file, one at a time

	select Strings list
	fileName$ = Get string... ifile
	Read from file... 'inputDir$''fileName$'

	# and scales peak and write to a new wav file	

	Scale peak... 'peak'
	Write to WAV file... ./output/'fileName$'

	# then remove all the objects except the strings list so praat isn't all cluttered up

	select all
	minus Strings list
	Remove

endfor

# at the very end, remove any other objects sitting around - like the strings list

select all
Remove