Acoustics Research Institute

Overview

General Description

S_TOOLS-STx is an acoustic, speech and signal processing application for Windows.The software is actively developed at the Acoustics Research Institute in Vienna, and used in a variety of acoustic fields around the world.

Signal Processing | Graphical Analysis | Scripting Language | Interface Protocols | Compatibility

Signal Processing

S_TOOLS-STx incorporates a sophisticated sound analysis and signal processing package:

frequency analysis based on Fast Fourier Transformations (FFT)
spectrum estimation methods, e.g. autoregressive (AR), Pseudo-Wigner distribution
fundamental frequency and formant frequency extraction, e.g. cepstrum, linear predictive coding (LPC)
digital filtering

Graphical Analysis

S_TOOLS-STx can display signal analysis in the following forms:

spectrogram / sonogram
waveform
waterfall plot
function plot

Scripting Language

All functionality available in S_TOOLS-STx is also available in a scripting language. Additional applications can be easily programmed in this language (either by the end user, or the Institute). S_TOOLS-STx includes a command line interpreter and a debugger. Using script files, S_TOOLS-STx can be used in batch mode for:

automated sound analysis procedures
interactive experiments
test designs
automated signal and process control.

For a list of available functions and commands, along with the complete syntax of the scripting language see the S_TOOLS-STx Reference Manual . S_TOOLS-STx comes with a large number of example scripts.

Interface Protocols

S_TOOLS-STx supports the following protocols from within the scripting language:

DDE
DCOM
TCP/IP (TCP/UDP)

An S_TOOLS-STx / DDE / DCOM demo application is currently available for Microsoft Excel and the statistics software package "R".

Compatibility

S_TOOLS-STx

creates, imports and exports MS Windows WAVE files.
runs on Windows 2000, Windows XP and Windows Vista.
stores its metadata in XML files.

Archiving: S_TOOLS-STx's metadata (segment addresses, attributes and parameters) is compatible with archiving systems and requirements, since it is stored in an additional file alongside the original wave file.These files could easily be imported into a archiving database system.

S_TOOLS-STx - Features

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Features of S_TOOLS-STx

S_TOOLS-STx provides tools for digitization of sound, single or multi (up to 128) channel signal recorder, 16/24 bit, sampling frequencies depending on audio hardware; analogue to digital transfer.

Last Updated ( Monday, 01 December 2008 )