12 kbit/s CVSD is used by Motorola's SECURENET line of digitally encrypted two-way radio products.
16 and 32 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 kbit/s rates were typically used by US Army forces to conserve bandwidth over tactical links. 32 kbit/s rates were typically used by US Air Force forces for improved voice quality.
64 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 PCM with logarithmic a-law or μ-law quantization, as well as mSBC codec featuring 16 kHz sample rate and best quality.
Numerous arcade games, such as Sinistar and Smash TV, and pinball machines, such as Gorgar or Space Shuttle, play pre-recorded speech through an HC-55516 CVSD decoder.12
"MAME 0.36b7 changelog". Archived from the original on 2011-10-07. Retrieved 2010-10-02. https://web.archive.org/web/20111007113335/http://maws.mameworld.info/minimaws/set/trog ↩
Williams/Midway Y-Unit games http://www.system16.com/hardware.php?id=610 ↩