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What was the frequency of the TI-99/4a startup tone?


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From TI Intern:

 

Sound list accept tone
0475 : DATA >06
0476 : DATA >BF
0477 : DATA >DF
0478 : DATA >FF
0479 : DATA >80
047A : DATA >05
047B : DATA >92
047C : DATA >0A
047D : DATA >01
047E : DATA >9F
047F : DATA >00

 

This means frequency 1396.91 Hz (~1400 Hz) and duration 166 ms (60 Hz) or 200 ms (50 Hz).

 

(See Edit/Assm manual, page 313ff.)

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1 hour ago, mizapf said:

From TI Intern:

 

Sound list accept tone
0475 : DATA >06
0476 : DATA >BF
0477 : DATA >DF
0478 : DATA >FF
0479 : DATA >80
047A : DATA >05
047B : DATA >92
047C : DATA >0A
047D : DATA >01
047E : DATA >9F
047F : DATA >00

 

This means frequency 1396.91 Hz (~1400 Hz) and duration 166 ms (60 Hz) or 200 ms (50 Hz).

 

(See Edit/Assm manual, page 313ff.)

We need to update it with a little short tune, instead of just a beep.

 

There is also a default HONK sound as well. For bad input. Both the BEEP and HONK you can call in assembly via GPLLNK as detailed in the editor/assembler manual.

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Posted (edited)
15 minutes ago, Gary from OPA said:

We need to update it with a little short tune, instead of just a beep.

 

There is also a default HONK sound as well. For bad input. Both the BEEP and HONK you can call in assembly via GPLLNK as detailed in the editor/assembler manual.

The HONK sound (bad input) sounds like a 220 Hz tone.

 

As for the BEEP sound (startup), it sounds like a 1,397 Hz tone.

 

~Ben

Edited by ColecoFan1981
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On 7/6/2024 at 7:11 PM, Gary from OPA said:

We need to update it with a little short tune, instead of just a beep.

 

There is also a default HONK sound as well. For bad input. Both the BEEP and HONK you can call in assembly via GPLLNK as detailed in the editor/assembler manual.

Speech data saying, "would you like to play a game"? Would be nice 

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9 minutes ago, Gary from OPA said:

How about an animated startup screen using sprites?

I wouldn't do that either. Once you go beyond the menu system, then anything will go, but before that - nice and calm - recognizable. Many of us are too old for change. 😁

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59 minutes ago, sometimes99er said:

I wouldn't do that either. Once you go beyond the menu system, then anything will go, but before that - nice and calm - recognizable. Many of us are too old for change. 😁

You'd be happy if it squirted Old spice...

Ok..me too

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