Introduction

STx provides all methods necessary for computation of Mel Frequency
CepstralCoefficients (MFCC). All the methods are described in the STx
Programmer Guide. This document shows how to use the STx Macro
Language to extract MFCC feature vectors from a sound file. All macros
and sound processing units (SPUs) are written in the file mfcc
extraction.sts which is  listed in Chapter 3. This macro file has to be
run from inside STx. Note that  you may have to adjust the path of the
#soundfile variable which has to point to a valid WAV sound file.

Read More (PDF)!

Type: Script
Version: -
STx Version: 3.7
File: mfcc_extraction.sts
Author: Timo Becker
Email:

A simple timer application which shows the elapsed time in a dialog and can be controlled via buttons or shell messages.


Type: Script
Version: 1.0
STx Version: 3.8 beta Revision 1853
File: timer.sts
Author: This e-mail address is being protected from spam bots, you need JavaScript enabled to view it

Extract speech components from an existing signal and resynthesise the signal. This script demonstrates the use of the Playwave class, the SPUnits window, csigin, lpcoefs and in2table. The script takes the following parameters:

 [ [ soundfile_path ] ; [ segment=Signal.All ] ; [ frame_length=20 ] ; [ frame_shift=10 ] ; [ number_of_coeficients=16 ] ]

If parameters are missing, the default values are used. There is no default soundfile_path; if no soundfile was specified, the user is prompted via a dialog to choose a file from the DataSet.