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how to change sampling rate in Speech Submission application

Hello, I am Uruguayan, I am trying to record some speech in spanish using the Voxforge Speech Submission application

I want to record at 8000 Hz so I edited "CapturePlayback.java" (public static final int samplingRate = 8000;) then I compiled using "javac"

However, when I run the applet it still records at 48000Hz

Could you help me to find the problem? Thanks in advance!

Some aditional comments:

1 - The files were created in the "upload directory" but the postlet message was "array(0) { } POSTLET REPLY POSTLET:NO POSTLET:TOO LARGE POSTLET:ABORT THIS END POSTLET REPLY"

2 - When I compiled I got the message:  CapturePlayback.java:1400: warning: [unchecked] unchecked call to add(E) as a member of the raw type java.util.Vector
                lines.add(new Line2D.Double(x, y_last, x, y_new));
                         ^

3 - I am using Ubuntu 11.04 with jre 1.6-4

--- (Edited on 3/14/2012 5:22 pm [GMT-0500] by uru2012) ---