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QuikVoice^TM   Digital Sound Chips

The QuikVoice chips are single- and multi-segment sound chips. They can record and/or play sound segments all by themselves without the help from a microprocessor. Unlike other sound chips which store a very limited amount of sounds in their internal memory, the QuikVoice chips store sounds in external memory chips with virtuely no limitation. Therefore, the QuikVoice chips do not require the kind of setup charge and long leadtime associated with custom sound chips. They also offer the better sound quality and longer message length.

The QuikVoice chips employs the Continuously Variable Slope Delta (CVSD) compression technique with variable sampling rates from 24 to 128 Kbps. Samping clock can be generated internally with a simple R/C network, or an external clock can be used. Operated with a single 5V supply, these chips are low power devices suitable for battery operated applications.

For EPROM based (playback only) designs, VP880 QuikVoice Development System must be used for sound development. VP880 is a computer based sound digitization, editing and management system. After the sound is developed, it is programmed into EPROM chips with a standard EPROM programmer. Eletech also provides sound development and programming service to customers who do not want to do it themselves.

Features
All features are not applicable to all models.

*  Voice grade audio record and/or playback
*  Stand alone operation
*  CVSD compression with variable sampling rates
*  Use external EPROM or SRAM for sound data storage
*  Single or multiple sound segments capability
*  Single or dual channel output
*  Low power consumption
*  DIP and surface mount package

Applications

*  Exhibits, displays and attractions
*  Message repeaters
*  Gaming, vending and amusement equipment
*  Industrial controls
*  Security alarms

Selection Guide

Demo Messages

The following messages demonstrate QuikVoice sound quality at different sampling rates. Please note that the sound quality may be different if the filter design recommended in the data sheet is not followed.

*  32 Kbps Demo (recommended for male voice)
*  48 Kbps Demo (recommended for female voice)

Download

Individual data sheets are available from the web page of that particular part.