there are 5 audio files (.wav) playable under windows. They are only abt 6 second duration.
So you can play them with Microsoft Mediaplayer on repeat when you like for measurements and the like.
Morse code in pretty white noise with different signat to noise ratio's.
It is interesting to know which file numbers you are able to copy with your method under development.
I did a quick test and timorse3.wav decodes cleanly. timorse2.wav decodes "TTST LE PA0WV" with FFT filter bandwidth 22 Hz.
I was not able to get anything meaningful from timorse1.wav. These were done using the legacy FLDIGI SOM decoder.
Bayesian decoder didn't do as well. I think the current front end signal processing chain in FLDIGI is not optimal for the Bayesian decoder as noted I my earlier testing, see http://ag1le.blogspot.com/2014/06/new-morse-decoder-part-4.html
The graph shows CER vs. SNR at various speed (which automatically adjusts filter BW) settings
My current focus is to get the multichannel CW decoder into decent shape and then return to the problem how to optimize CER vs. SNR vs. automatic speed detection vs. filter bandwidth settings etc. Thanks for very good test material, these are really good benchmark files.