DATAMATH CALCULATOR MUSEUM
Texas Instruments Listen & Learn "Sounds we Hear"
|Date of introduction:||1991||Display technology:|
|New price:||$21.21 (1992)||Display size:||n.a.|
|Size:|| 6.1" x 6.1" x
155 x 155 x 155 mm3
|Weight:||18.7 ounces, 530 grams||Serial No:|
|Batteries:||4*AA cells||Date of manufacture:||mth 06 year 1990|
|AC-Adapter:||Origin of manufacture:||China (A)|
|Program steps:||Courtesy of:||Joerg Woerner|
Small toddlers use the Listen & Learn toy like a small ball. Due to the flats on each side the toy will find a stable position and plays a sound associated to the pictures on top of the ball. The Listen & Learn uses again Texas Instruments speech technology introduced with the Speak & Spell.
Dismantling a similar Magic Melody manufactured in 1992 by (or for) Texas Instruments in China reveals a technology very similar to the various Touch & Talkies. The design of the Magic Melody Tell is centered around a TSP50C11 Voice Synthesis Processor (VSP) and makes use of just one Integrated Circuit:
|• TSP50C11/CSM11XXX: TSP50C50 VSP (Voice Synthesis Processor) with 8-bit microcontroller and 16k Bytes Mask ROM for both program and voice and 128 Bytes + 16 Nibbles RAM|
Each year another Listen & Learn theme appeared shortly before Christmas:
• 1989: Farm Animals
• 1990: Nursery Rhymes
• 1991: Sounds we Hear
• 1992: Sounds of Christmas
The toy is intended for toddlers ages 6 to 36 month.
Other toys for toddlers are the Peek-A-Boo Zoo and the Magic Sorter.
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© Joerg Woerner, September 28, 2002. No reprints without written permission.