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Dual Function Generator
FreeDual Function Generator: Powerful Audio Waveform Creation
Windows
DSP Audio Filter
FreeDSP Audio Filter: Powerful Signal Processing for Windows
WindowsVox Recorder
FreeVox Recorder: Solid Audio Capture Tool
Windows
Audio Spectrum Analyzer
FreeVersatile Audio Spectrum Analyzer for Detailed Waveform Analysis
Windows
Instrument Tuner
FreeAccurate Tuning Tool for Musicians
Windows
Digital Voice Keyer
FreeDigital Voice Keyer: Automate Amateur Radio Voice Transmission
WindowsSpectraScope
FreeSpectraScope: Dual Channel Audio Analysis for Windows
Windows
Simple Windows Packet Controller
FreeSimple Windows Packet Controller: Basic PC Comms Tool
Windows
CW Decoder
FreeDecode and transmit Morse code from your PC.
Windows