Product category:
Analogue and Mixed Signal ICs
News Release from: Oki Electric | Subject: ML22310 series
Edited by the Electronicstalk Editorial
Team on 20 September 2007
Voice synthesis IC is easy to integrate
Event input method enables playback of prerecorded voice data by using level shifting at the input terminal as the starting trigger.
Oki is sampling the ML22310 series of voice synthesis ICs designed for short voice playback such as warning sounds and vocal guidance Finished products with voice playback functionality, such as voice guidance to enable easier operation or warning sounds to notify danger, are becoming common as the need for user-friendly products increases
This article was originally published on Electronicstalk on 10 Apr 2002 at 8.00am (UK)
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Oki is addressing this need by introducing an interface with event input that allows easy addition of voice playback functionality to existing designs.
The series includes the ML22310 with internal mask ROM and the ML22Q310 with on-chip Flash memory.
Because customers can easily customise the voice data on their own with the ML22Q310, when voice data are changed or revised, customers can evaluate the voice on their actual design on the spot.
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"To respond to the needs of voice playback functionality, Oki developed two new products with event input method, enabling users to add voice functions to their existing systems".
"Even customers with no experience with sound playback design can easily add voice guidance or sound effects to their designs", says Masahiko Morioka, President of Silicon Solutions Company at Oki Electric Industry.
"As one of the top suppliers of voice synthesis LSI, Oki will continue to provide user-friendly voice solutions that enable added-value to our customers' designs".
"We will leverage our rich voice technology assets such as Oki ADPCM high quality voice compression technology, our expertise in voice synthesis accumulated for over 20 years, and our support capability that is committed to high-quality sound".
Both the ML22310 and ML22Q310 control voice data in the memory using the event input method, which allows playback of prerecorded voice data by using level shifting at the input terminal as the starting trigger.
The prerecorded voice data is stored internally, and can be combined in up to 63 playback patterns or phrases.
Interface specifications such as number of input terminals, the trigger input signal specifications (either rising or falling edge), the interval time until playback, or the time-until-standby after playback, are all user programmable.
This flexible interface specification enables maximum use of signal lines in an existing design to control the ML22310/ML22Q310, thus allowing customers to easily add voice functions without making significant revisions on the board or changes on the control software.
Both devices operate in stand-alone mode, and so do not need an external MCU to program it or control voice playback.
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