[DECtalk] DecTalk emulator

[Brandon Tyson]

Hi,

So how do I get it running in Mame?

I did
mame 23-031e5.e18 and it said that it was an unknown system.

Thanks,

Brandon

On 7/29/19, Don <Text_to_Speech at gmx.com> wrote:
> On 7/29/2019 12:19 AM, Aksel Leo Christoffersen wrote:
>> The zip-file from archive.org, is the exact same emulator, just without
>> MAME. I’ve tried it my self.
>
> MAME is the emulator:  Multiple Arcade Machine Emulator.
>
> To emulate different arcade games, it -- as a program -- PRETENDS to be
> various types of computers.  When "fed" EXACT COPIES of the Read Only
> Memory chips that were installed in those games, the corresponding
> CPU chip emulator interprets the contents of those ROMs to behave in a
> manner similar to the actual, physical CPU chip did in the real game.
>
> Because the original CPU chips used in these arcade games were so much
> slower than modern CPUs in our PCs, the emulator PROGRAM can provide
> comparable performance in a PC even though it has to do far more work
> to interpret what the ROMs would have told the original CPU chip
> hardware to do.
>
> The original DECtalk product was implemented with a Motorola MC68000
> microprocessor accompanied by sixteen 16KB ROMs -- 256KB of "program".
> This included all of the algorithms to convert the text that was
> presented to the TTS via its serial port.  They also contained the
> various letter-to-sound rules used to convert arbitrary sequences of
> characters (words) into sounds.  As well as rules to handle words
> that were "exceptions", rules to convert sequences of digits into
> spoken numerical quantities, etc.
>
> A Texas Instruments TMS32010 Digital Signal Processor (a very fast
> CPU optimized for doing the sort of math involved to create waveforms)
> generated the actual audio signals that were fed to the speaker.
>
> (They could also be fed to a telephone line due to the design of
> the hardware -- your DECtalk could answer the phone and interact
> with the caller using synthetic speech).
>
> The ZIP file mentioned is just the contents of the ROMs -- two different
> versions.  The "suffix" on each file determines which physical ROM chip
> gets the contents of that file.  So, "e18" is an actual chip designation
> on the circuit board.  Noting the presence of two e18's means there are
> two different versions of the contents for the e18 ROM chip.  Ditto with
> the other ROMs.
>
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