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2. Vocoder - Wikipedia

   en.wikipedia.org/wiki/Vocoder

   A vocoder (/ ˈ v oʊ k oʊ d ər /, a portmanteau of voice and encoder) is a category of speech coding that analyzes and synthesizes the human voice signal for audio data compression, multiplexing, voice encryption or voice transformation. The vocoder was invented in 1938 by Homer Dudley at Bell Labs as a means of synthesizing human speech. [1]

3. Dictation machine - Wikipedia

   en.wikipedia.org/wiki/Dictation_machine

   The files generated with digital recorders vary in size, depending on the manufacturer and the format the user chooses. The most common file formats that digital recorders generate have one of the extensions WAV, WMA and MP3. Many dictation machines record in the DSS and DS2 format. Dictation audio can be recorded in various audio file formats.

4. Sound Recorder (Windows) - Wikipedia

   en.wikipedia.org/wiki/Sound_Recorder_(Windows)

   Before Windows 7, Sound Recorder could save the recorded audio in waveform audio (.wav) container files.Sound Recorder could also open and play existing .wav files. To successfully open compressed .wav files in Sound Recorder, the audio codec used by the file must be installed in the Audio Compression Manager (ACM); Windows installations dating back to at least Windows 95 came with a selection ...

5. PGPfone - Wikipedia

   en.wikipedia.org/wiki/PGPfone

   PGPfone was a secure voice telephony system developed by Philip Zimmermann in 1995. The PGPfone protocol had little in common with Zimmermann's popular PGP email encryption package, except for the use of the name. It used ephemeral Diffie-Hellman protocol to

6. Audacity (audio editor) - Wikipedia

   en.wikipedia.org/wiki/Audacity_(audio_editor)

   Audacity is a free and open-source digital audio editor and recording application software, available for Windows, macOS, Linux, and other Unix-like operating systems. [4] [5] As of December 6, 2022, Audacity is the most popular download at FossHub, [8] with over 114.2 million downloads since March 2015.

7. Secure voice - Wikipedia

   en.wikipedia.org/wiki/Secure_voice

   A digital secure voice usually includes two components, a digitizer to convert between speech and digital signals and an encryption system to provide confidentiality. It is difficult in practice to send the encrypted signal over the same voiceband communication circuits used to transmit unencrypted voice, e.g. analog telephone lines or mobile radios, due to bandwidth expansion.

8. AOL

   search.aol.com

   The search engine that helps you find exactly what you're looking for. Find the most relevant information, video, images, and answers from all across the Web.

9. Voice logging - Wikipedia

   en.wikipedia.org/wiki/Voice_logging

   Voice logging is the practice of regularly recording telephone conversations. Business sectors which often do voice logging include public safety (e.g. 9-1-1 and emergency response systems), customer service call centers (conversations are recorded for quality assurance purposes), and finance (e.g. telephone-initiated stock trades are recorded for compliance purposes).