Body #11 27 июля 1999

Железо

Hardware - A new four-channel sound card - DMA Sound.

                            Hardware

(C) Necromancer mdm: (017) 270-18-47


    The scheme was published in the ninth Adventurer'e and 
caused similar interest. Thus, the device is a new four-channel 
sound card with the quality, if you believe the author of the 
scheme, better than Sound Blaster, and the player will eat the 
same number of cycles how much and AY. Under the card is 
already written MOD PLAYER. That is, Basically, the future of 
the card is. But if you look closely, not all rulezno so it 
seems. 

    First of all, memory. His memory DMA SOUND does not possess,
Instead, the card directly accesses the upper memory
computer. On the one hand it is good that through this
solutions reduces the cost of the device. On the other hand,
most worth 128k of memory. If mode listen, reluctantly,
you can, then what about creating a decent game out of the 
question can (or am I wrong?). Set itself a map to play

Tetris with digitization? And the more memory just is not 
enough. It By the way, and so is not enough - read ZXNEWS with 
a report on the establishment "Awaken".


    The second problem is the absence of the manufacturer. Yet
existing copies are made "on the wires" that can be
acceptable for zhelezyaschika, but is not suitable for 
conventional user. However, there is an opportunity to make a 
custom board factory quality (along with the card can be 
diluted and others devices such as disk drive controller card 
and the Kempston mouse), but everything is not smooth: the cost 
of fees is inversely proportional their number (the higher 
fees, the cheaper it will cost). A Here's wishing to have the 
DMA SOUND yet to score at more than 4 people, which lead to 
cheaper cards can not. 

    It is, objectively speaking. And my personal opinion is:
at this stage DMA SOUND is another "sound drive" 'om,
true quality. That the device has become popular
must go to the memory size of at least 512Kb, for
Many problematic. Problem could be solved connection SIMM,
but again finished circuit is just under the "Pentagon". But
if it were available circuits (c recommendations
establish) the "byte", "Baltic" and the like, then I am sure 
that memory problems would be solved.


    Nevertheless, would be a shame if lost is good,
general, development. Perhaps this issue I will return, but
It would be interesting to know more about your opinions.