On Sun, Apr 11, 2004 at 04:29:26 -0500, Martin McCormick wrote: > I am new to this list and got in in the middle of this > discussion, but Here are some thoughts on 0 VU and what it means in > the digital domain. > > You probably already know that an A/D converter when fed > silence normally produces an output that is exactly halfway between > the number 0 and 0xFFFF for a 16-bit converter. For a converter with > more or less bits, the maximum reading is all bits on so it is 2^N > power. > > The halfway point makes the D/A converter output a voltage > that is halfway between 0 and the maximum peak voltage that particular > A/D converter can put out. Actually thats not quite right - AD converters generally work in 1's or 2's complement, depending on the brand/variety, so the middle point is at 0, and the range is slightly larger in the -ve voltage range. - Steve
