[Coco] Stereo Composer

[Joel Ewy]

coco at yourdvd.net wrote:
> The stereo composer output ports are mapped at $FF70 AND $FF72 (8-BIT
> DACS). The Orchestra 90/CC is mapped at $FF7A and $FF7B   (In order of
> left / right).
>
> I have developed a simple switchable mod to convert an Orch-90 into a
> stereo composer compatible pak.
>
>   
Hey, that's pretty cool.  I added a switch to my old CoCo Max II
joystick interface so that it would work on the CoCo 3, before CoCo Max
3 was available.

What was the Speech Systems software like?  I assume it wasn't ROM-based
like the Orch. 90.

This also feeds into the venerable next-gen CoCo threads of yore.  We
had a lot of discussion a couple months back about what hardware to
emulate in a (still mostly hypothetical) improved CoCo, whether emulated
on a PC or implemented in a hardware description language on an FPGA. 
We were looking at which games and other software supports the
Speech/Sound Cartridge and which supports the Orch. 90CC.  Many more
games support the SSC than the O90CC, though there are a few that use
the latter.  But there are some digital sample players that use the
Orch. 90, and loads of Orch. 90-native music files.  I contend that the
Orch. 90's hardware is so dirt simple, it could be integrated with the
SSC, so there's really no reason to choose.  And if there is a Speech
Systems board that differs from the (hardware portion of the) Orch. 90
only in being mapped to different hardware addresses, that adds just one
more reason to include a stereo 8-bit DAC alongside, or integrated with
the speech and music synthesizers of the SSC.

JCE
> -robert
>
>   
>> -------- Original Message --------
>> Subject: [Coco] Stereo Composer
>> From: "Bob Devries" <devries.bob at gmail.com>
>> Date: Fri, May 04, 2007 9:30 pm
>> To: <coco at maltedmedia.com>
>>
>> Does anyone here have any information (Technical if possible) about the 
>> Speech Systems Stereo Composer cartridge?
>>
>> --
>> Regards, Bob Devries, Dalby, Queensland, Australia
>>
>> Isaiah 50:4 The sovereign Lord has given me
>> the capacity to be his spokesman,
>> so that I know how to help the weary.
>>
>> website: http://www.home.gil.com.au/~bdevasl
>> my blog: http://bdevries.invigorated.org/
>>
>>
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>
>
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