Video Asylum

Posted by Biff on May 06, 1999 at 19:56:04:

In Reply to: Re: 5700 vs dsp-a1 for 2 channnel audio posted by Rod M on May 06, 1999 at 17:16:11:

The statement that "You should be running all digital inputs as the Yam converts analog to digital anyway" implies that all analog input is converted to digital. Please correct me if I am wrong here Rod, but I believe that this interpretation is incorrect. Looking at the block diagram for the DSP-A1, all the digital signals go through the DSP but the analog inputs also go to summing junctions that are called DSP/BYPASS. The anlog inputs to the DSP/BYPASS junctions are summed with the external decoder inputs and the DAC outputs of the DSP. In short, the unmodified analog signals pass to the right and left main speakers if effects off is selected (which turns off the DSP). If the DSP is active, its contribution would be summed with the analog inputs at the DSP/BYPASS summing junctions. The center and effects speakers are also available when the DSP is active or the external decoder inputs are used.

I realize that this contradicts the popular myth that the DSP-A1 digitizes everything. Sorry about that, hope this info is helpful.