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Digital Audio: Voice Output Communication System |
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J. Gordon Electronic Design developed a digital voice output communication system intended to aid handicapped people with a need for artificially produced speech. The portable battery operated unit records up to 12 messages.
This product digitally records up to 2 minutes of speech, organized as up to 12 separate messages. It uses a Delta Pulse Code Modulation method for high data compression ratio.
The primary lead-acid battery power source includes dual rate recharger. A secondary lithium battery retains memory for several years.
Innovative timing circuitry uses byte-wide SRAM with an ASIC designed for bit-wide DRAM memory technology.
J. Gordon Electronic Design developed the electronics for "SpeakEasy", designed as an aid to handicapped people with a need for artificially produced speech to assist them in integrating with their surroundings. The unit records up to 12 messages that can be replayed at random.
The SpeakEasy records speech by digitizing the input from its internal microphone, recording the data in battery backed up memory. Speech is reconstructed from the digital data upon playback. An internal audio amplifier, filters, and speaker are included.
Two types of battery technology are used for portable normal operation and long term memory retention. Automatic power-up and power-down prolong primary battery life. A dual rate charger provides quick recharge followed by a safe, long term trickle charge. |
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