Wednesday, January 11, 2012

Morse Decoder 1.1.0 Mac App Store update

The HotPaw Morse Code Decoder, version 1.1.0, is now available from the Mac App store.  It is currently still the only Morse Code or CW app available from Apple's Mac App Store.  A free update for current users should be shown automatically when running the App Store app on your Mac.

Two important new features were added to version 1.1.0.

The first new feature is an audio input selection option for users with USB or PCI audio input devices.  Some of these 3rd party USB or PCI accessories will allow line-level audio input directly from a radio receiver.  The use of an audio line-input instead of a microphone may allow for even more accurate Morse Code decoding.  The choice of audio input can now be selected within the app.

Also added is an option for manual control of the threshold level for detecting Morse Code dits and dahs above a background noise floor.  This option can be enabled by turning AGC off, which is useful when the AGC cannot adapt properly to high levels of noise or fading in the audio signal.  The feature works best in conjunction with the optional narrow band filter, which can be enabled just by clicking on the desired frequency peak shown by the built-in spectrum analyzer.

1 comment:

HotPaw said...

Here's a YouTube video showing the Morse Decoder in operation: