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Sweet Talker for the ZX81 / ZX Spectrum
Cheeta Marketing Ltd
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INSTRUCTIONS FOR USE

Enclosed with your "Sweet Talker" you will find a demonstration tape
which will explain precisely how to program it.
In order to prevent damage to your "Sweet talker" or computer please
ensure that your computer is switched off before plugging or unplugging
the unit. Then simply plug it into the user port at the rear of the
computer - it will take its power from the existing power supply.
Other accessories, including the "Cheetah" 32K Ram Pack can be used via
the card edge connector at the rear of the "Sweet Talker".
Now simply load "Chatbox" and make yourself a friend.


EXAMPLE "CHEETAH" (Spectrum)

10 DATA 50, 19, 13, 15, 15, 0
20 FOR I = 1 TO 6
30 READ A
40 OUT 7,A
50 NEXT I
   RUN


TABLE

SILENCE
DURATION             DATA
10ms                 0
30ms                 1
50ms                 2
100ms                3
200ms                4

LETTER  ALLOPHONE  DATA  EXAMPLES
A       *AE        26    extract, acting
        *AO        23    talking song
        *AX        15    lapel
        EY         20    great, statement, tray
        AR         59    farm, alarm, garment
        XR         47    hair, declare, stare
B       BB1        28    final position: rib; between vowels; fibber; in clusters; bleed, brown
        BB2        63    initial position before a vowel: beast
C       CH         50    church, feature, cheetah
D       DD1        21    final position: played, end
        DD2        33    initial position: down; clusters: drain
E       *EH        7     extent, gentlemen
        IY         19    treat, people, penny
        ER1        51    letter, furniture, interrupt
        ER2        52    Monosyllables; bird, fern, burn
        YR         60    hear, earring, irresponsible
F       *FF        40    may be doubled for initial position and used singly in final position; food
G       GG1        36    before high front vowels: YR, IY, IH, EY, EH, XR, guest
        GG2        61    before high back vowels: UW, UH, OW, OY, AX: and clusters; green, glue
        GG3        34    before low vowels: AE, AW, AY, AR, AA, AO, OR, ER; in medial clusters; anger; and final position; peg
H       HH1        27    before front vowels: YR, IY, LH, EY, EH, XR, AE, HE
        HH2        57    before back vowels: UW, UH, OW, OY, AO, OR, AR: HOE
I       *IH        12    sitting, stranded
        AY         6     kite, sky, mighty
J       JH         10    judge, injure
K       KK1        42    before front vowels: YR, IY, IH, EY, EH, XR, AY, AE, ER, AX; initial clusters: cute, clown, scream
        KK2        41    final position: speak; final clusters: task
        KK3        8     before back vowels: UW, UH, OW, OY, OR, AR, AO: initial clusters: crane, quick, clown, scream
L       LL         45    like, hello, steel
        EL         62    little, angle, gentlemen
M       MM         16    milk, alarm, ample
N       NN1        11    before front and central vowels: YR, IY, IH, EY, EH, XR, AE, ER, AX, AW, AY, UW; final clusters; earn
        NN2        56    before back vowels: UH, OW, OY, OR, AR, AA: No
        NG         44    string, anger
O       *UH        30    cookie
        *AA        24    pottery, cotton
        OY         5     noise, toy, voice
        UW2        31    in monosyllabic words: two, feed
        OW         53    zone, close, snow
        AW         32    sound, mouse, down
        OR         58    fortune, adorn, store
        *AO        23    talking song
P       PP         9     pleasure, ample, trip
Q       KK3        8     before back vowels: UW, UH, OW, OY, OR, AR, AO; initial clusters; crane, quick, clown, scream
R       RR1        14    initial position: read, write, x-ray
        RR2        39    initial clusters: brown, crane, grease
S       SS         55    may be doubled for initial position and used singly in final position: vest
        SH         37    shirt, leash, nation
T       DH1        18    word-initial position: this, then, they
        DH2        54    word-final and between vowels: bathe, bathing
        *TH        29    may be doubled for initial position and used singly in final position: thin
        TT1        17    final clusters before SS: tests, its
        TT2        13    all other positions: test, street
U       UW1        22    after clusters with UU: computer
        *UH        30    full
        *AX        15    instruct
        ER2        52    monosyllables; burn
V       VV         35    vest, prove, even
W       WW         46    we, warrant, linguist
Y       YY1        49    clusters; cute, beauty, computer
        YY2        25    initial position; yes, yarn, yo-yo
Z       ZZ         43    zoo, phase
        ZH         38    beige, pleasure

* These allophones can be doubled.


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TECHNICAL NOTES

The ZX81 version of the interface uses output port $07 (decoding address lines
A7-A3), whereas the Spectrum version uses output port $1F (decoding address
lines A7-A5) to make it compatible with the ZX Interface 1.

The Spectrum version of the interface asserts the WAIT line until an allophone
has finished being rendered. The drawback of this approach is that is stops the
CPU performing other tasks while the allophone is being played.