
    /\         *************************
   -  \  -    >----- Wave To Note ------>     /~
       \/      *************************     


version 1.1


This is a short description to a simple Win32 program, it can be used to 
determine the pitch of a given WAV-file.

The appropriate note is given in the equal-tempered pitch, the commonly used 
tonic system in Europe since the 18th century. The octave is devided into 
12 equal semitones in a ratio of 1 :  12  __
                                      -  / 2.
                                       \/

How to use it:

1. Open a mono WAV-file:  menu file->open->!
   First you get some information about the sample data. Then you can 
   input a time which the used Fourier Transformation vector will start at. 
   The analysis covers a 3/4 second of the recording. The rest of the data 
   is ignored. If the recording is shorter then this plus the start time, 
   the data is internally repeated.

2. Follow the instructions!

3. In most of the cases there is more then one peak to be seen. 
   The peaks generally are the single harmonics of the tone. 
   If you want to know the base frequency, click to the most left peak. 
   Only the horizontal coordinate of the mouse pointer is used.

4. The result you get is in the following format: 
     
     <frequency at the local maximum (peak)> 
     <nearest note> (<exact frequency of the note>) 
                    
     <sample rate to exactly tune the sample>

5. Because the frequency of the peak may significantly differ from the exact 
   frequency of the corresponding note you have the ability to modify the sample 
   rate of the WAVE file. Notice that the new sample rate may be higher than the 
   highest supported by your soundcard. If this is the case check the button 
   titled "No higher sample rate"! This will cause the sample rate in the edit 
   field to be halved.


Improvements over version 1.0:

   - possibility to exactly tune the sample by modifying the WAVE file sampling rate
   - generally more narrow peaks using a hamming window function


Limitations:

1. Only use this program for mono WAV-files! If there should be a need to analyse 
   stereo WAV-files or other enhancement suggestions as well as error reports,
   write electronic mail to:
                              hagen.lorenz@student.uni-magdeburg.de
     
2. This is a beta version which still might show some bugs.


You can use this program free but without any warranty concerning its 
operation and demages it might produce.
