Title:      softsolutions-from-sedutec 
nocomments: True

# Overview

This site contains some of my applications, which I developed over the last few years.

Currently there are three standalone applications available:

* The first application is called AudioAnalyser and is a realtime audio analyser.
* The second one is called Multisine. It is an audio signal generator. This application
  is totally dated and is listed more of historical reasons. 
* My latest application is called HarmonicTune. It is a cromatic instrument tuner for nearly
  all kind of instruments.

Additionally to my standalone applications I developed some VST Plugins.
Currently there are three simple but effective Plugins available

* sedutecLimiter
* sedutecStereoEnhancer
* sedutecCompressor


# AudioAnalyser

![](/images/audioanalyser201012_1.jpg)

## Description

The program "AudioAnalyser" is a realtime frequency analyser for audio signals.

You can combine the "AudioAnalyser" with my other application "Multisine". With this
combination you have a full equipped audio suite for your measurements.

I have written the application in C++ using the following libraries and tools:

* [wxwidgets](http://wxwidgets.org) as cross platform gui library
* [wxfreechart](http://wxcode.sourceforge.net/components/freechart/) for charting
* [boost](http://boost.org) for useful C++ libs
* [portaudio](http://portaudio.com) is used for audio I/O
* [code::blocks](http://codeblocks.org) as IDE

## Feature list of AudioAnalyser V2017.03

* Samplingrate 1000 Hz ... 96 kHz
* FFT length 1024 ... 32768 points
* Stereo and Mono mode
* Averaging mode (1-20)
* Max hold mode
* 5 different windows (Hanning, Hamming, Blackman, Blackman Harris, Rectangular)
* Linear and logarithmic frequency axis
* Vector Scope for stereo width and phase analysis
* Real PPM Meter
* 2 markers (Deltamarker) available
* Variable axis settings
* Level Correction value
* Screenshots
* Analyser Mode selectable between Amplitude Spectrum and Power Spectrum Density

## System requirements

* Win10, Win8, Win7, Vista
* Soundcard

# Multisine

![](/images/multisine1.jpg)

Deprecated. Download removed.

# Harmonic Tune

![](/images/harmonictune1.jpg)

## Description

The program HarmonicTune is an general purpose chromatic Instrument Tuner. You should be able to tune
nearly every kind of instrument with it (including brass, strings, piano, guitars...).
Nevertheless the algorithm for the base frequency detection is not perfect, but I hope to improve
it step by step over time. The application is written in C++, uses the libraries "wxWidgets",
"boost" and "portaudio" and is compiled and organized with the great free IDE "Code::Blocks" using MinGW.

## Feature list of actual revision HarmonicTune 0.93

- Universal automatic tone detection for nearly all kind of instruments
- Theoretical tuning range from C0 ... B7
- Samplingrate, FFT size and threshold level adjustable
- Following fundamental frequency detections algorithms are available:
    - Power Density Spectrum
    - Cepstrum
    - Autocorrelation
- The algorithm parameters are adjustable
- The tuning basis is adjustable
- Following temperaments possible:
    - Equal Temperament
    - Just Intonation
    - Meantone Temperament

## System requirements

* Windows Vista, Windows XP or Windows 2000
* Soundcard

# VST Plugins

## Description

Mainly for educational reasons regarding dsp techniques I started the development of VST plugins.
My aim is to create simple but powerful plugins, doing exactly what the user would expect. Nothing more.

Currently the following plugins are available:

##  sedutecLimiter

- Simple Limiter Plugin
- Its only parameter is "Threshold [dB]", where the limiter starts processing the signal.
- Uses default gui of host application
- Implements VST SDK Version V2.4
- Release Date: Dec 2008

## sedutecStereoEnhancer

- Stereo Enhancer Plugin
- Its only parameter is "Width"
    - width = 1: no stereo width change
    - width < 1: decrease stereo width
    - width = 0: mono
    - width > 1: increase stereo width
- Based on the m/s transformation matrix
- Uses default gui of host application
- Implements VST SDK Version V2.4
- Release Date: Jan 2009

## sedutecCompressor

- General Purpose Stereo Compressor Plugin
- The plugin is controlled with the following 7 parameters:
    - Threshold [dB]
    - Ratio
    - Attack [ms]
    - Release [ms]
    - Stereo Link (Off/On)
    - Knee Characteristic (Hard/Soft)
    - Makeup Gain [dB]
- Uses default gui of host application
- Implements VST SDK Version V2.4
- Release Date: Jan 2009

# License

The programs "Multisine", "AudioAnalyser" and "HarmonicTune" are provided as FREEWARE.

This software is provided "AS IS". The author is not liable for any damage caused directly
or indirectly by the use of this software.

Copyright (C) 2005 - 2017 by Sebastian Dunst. 

# Downloads

- AudioAnalyser
    - Actual revision: 2017.03
    - Date: 06.03.2017
    - 7-zip version: [AudioAnalyser2017.03.7z](/downloads/AudioAnalyser2017.03.7z) (1141 KByte)
- Harmonic Tune
    - Actual revision: 0.93
    - Date: 09.06.2010
    - 7-zip version: [HarmonicTune0.93.7z](/downloads/HarmonicTune0.93.7z) (947 KByte)
- Vst Plugins
    - [sedutecLimiter.7z](/downloads/sedutecLimiter.7z) (50 KByte)
    - [sedutecStereoEnhancer.7z](/downloads/sedutecStereoEnhancer.7z) (50 KByte)
    - [sedutecCompressor.7z](/downloads/sedutecCompressor.7z) (57 KByte)