Editing Continuously variable slope delta modulation (section)

== Applications ==
12&nbsp;kbit/s CVSD is used by [[Motorola]]'s SECURENET line of digitally encrypted two-way radio products. 

16 and 32&nbsp;kbit/s CVSD were used by military [[TRI-TAC]] digital telephones (DNVT, DSVT) for use in deployed areas to provide voice recognition quality audio.  16&nbsp;kbit/s rates were typically used by [[US Army]] forces to conserve [[Bandwidth (signal processing)|bandwidth]] over tactical links.  32&nbsp;kbit/s rates were typically used by [[US Air Force]] forces for improved voice quality.

64&nbsp;kbit/s CVSD is one of the options to encode voice signals in telephony-related [[Bluetooth]] service profiles; e.g., between mobile phones and wireless headsets. The other options are [[Pulse-code modulation|PCM]] with logarithmic [[A-law algorithm|a-law]] or [[μ-law algorithm|μ-law]] quantization, as well as mSBC codec featuring 16&nbsp;kHz sample rate and best quality.

Numerous arcade games, such as ''[[Sinistar]]'' and ''[[Smash TV]]'', and pinball machines, such as ''[[Gorgar]]'' or ''[[Space Shuttle (pinball)|Space Shuttle]]'', play pre-recorded speech through an HC-55516 CVSD decoder.<ref>{{Cite web |url=http://maws.mameworld.info/minimaws/set/trog |title=MAME 0.36b7 changelog |access-date=2010-10-02 |archive-url=https://web.archive.org/web/20111007113335/http://maws.mameworld.info/minimaws/set/trog |archive-date=2011-10-07 |url-status=dead }}</ref><ref>[http://www.system16.com/hardware.php?id=610 Williams/Midway Y-Unit games]</ref>