Speech Privacy Systems - Interception, Diagnosis, Decoding, Evaluation. Part 1 Open PDF Document Details Document Type Technical Report Publication Date Oct 12, 1944 Accession Number ADA800206 Entities People W. Koenig Tags Communities of Interest Energy and Power Technologies Human Systems DTIC Thesaurus Topics Amplitude Amplitude Modulation Carrier Frequencies Coding Decoding Demodulation Eye Frequency Frequency Bands Modulation Modulators Radio Equipment Radio Transmission Recording Systems Speech Scrambling Two Dimensional Waveforms