The first talking calculator was the "TSI Speech+" intended for the blind, which was a much bigger device. (I own one. To make it work without soldered batteries (risk of leaking), desolder them and install an electrolytic capacitor to prevent distorted speech.) Early talking calculators were also made by Sharp (with spoken numbers) and by Panasonic. The Casio TA-1000 is based on an unknown version of the same D1864G CPU like Casio melody calculators with clock (crystal clocked likely at 32.768 kHz). The "ding dong" alarm still uses their squarewave melody voice. The omitted clock features were possibly done by lack of rom space, because unlike these, it communicates with an additional big speech IC "HD61912 C02" (60 pin) through a simple 3 wire protocol. The speech chip seems unique and has plenty of unused pins those trigger fragments of words if messed with. Interesting is that the pocket computer Casio PB-100 (aka Radio Shack PC-4) of 1982 contains a CPU "HD61913" (80 pin SMD, seen in PC-4 service manual) with 2x SRAM HD61914, which may help to estimate age and hardware platform it was designed for. The stored sounds are heavily data-reduced; this synth engine makes bizarre distorted loud glitch noises during crash (e.g. modem-like or semi-metallic). I am not sure what it is exactly, but the Hitachi patent US4435832 (Japanese priority date 1979) about speech synthesis with time stretch and compression function (i.e. dynamically changeable playback speed) may be related to it, which describes a PARCOR based LPC algorithm.
@pianokeyjoe
Жыл бұрын
A female synthetic voice at that! Now thats nice!And the voice was overall understandable too!
@michaelturner4457
Жыл бұрын
I used to have one of these, and was always playing with it. Until it was confiscated one day, as apparently it was annoying.
@twistedwhiskers8776
Жыл бұрын
Can you check out the Casio SA 80/81
@michaelturner4457
8 ай бұрын
Sounds like same voice as the Radio Shack Voxclock
@kumuppins95
Жыл бұрын
Yes, I still have my T1000 but lost the manual...how do you reset the date????????
@CasioChaosTheory
Жыл бұрын
Move to master switch to "SET" (or any position except "Time"). Press the AC button, then type in the full date in the following format - YYYYMMDD - then use a pin/ toothpick to press the ADJ/ SET button. For example, today's date is 1st October 2023, so to set the T1000 to that date carry out the following (with master switch not at the TIME position): (Press) AC (Enter) 20231001 (Press) adj/set. That should set the date for you. Hope that helps!
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