[CW] Making Morse MlDl Files

[David J. Ring, Jr.]

Making Morse MlDl Files

 From MM last issue: http://www.n7cfo.com/tgph/Dwnlds/mm/MMs/MM89.pdf

Several people have contacted me about making computer audio files of 
Morse. Why would you want to do this? Some reasons:

Distributing material for code practice sessions, attaching to emails to 
excite. interest or irritate other Morse people. or to use as audio 
introductions to Ham websites. Ideally, clicking on such a file should 
bring up one of the standard audio players to play the Morse through 
your soundcard.

It's relatively easy to generate a WAV file with a software  package 
such as Goldwaveor VLC from audio Morse generated either externally, 
input through the soundcard, or from Morse keyboard software such as 
CWType — if your soundcard supports duplex operation. However, WAV files 
are very large. With an appropriate plug-in. you can convert WAV to MP3 
files, but even these will be relatively large. The solution is to make 
a MIDI file. as used for recording music. Instead of storing sampled 
sound directly. MIDI files store information about how the sound is to 
be generated in the soundcard. Thus. being "interpreted". they are much 
smaller.   Rob, KA2BEO distributes “CWMIDI”. a PC program that does this 
http://www.natradioco.com/Nrprods2.htm
ENJOY! Following its 14th year anniversary, this software is now 
available for FREE!

73

DR
N1EA
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