PAS and PAS16 use a common stock crystal (1.193180 MHz -- I think this
is the same as is used as the clock in a PC; it's an NTSC-derived
frequency, I believe) and divide it; cheap, but poor choice since
common sampling rates are not compatible with the chosen frequencies
-- the proper divisor is approximately 27.056. To make matters worse,
the PAS16 requires stereo sound to use an even divider, which means
the fairly good approximation of 27 (44.192 kHz) is no longer
available, and we're stuck with 28 (42.614 kHz).
When I found this out, I went out and bought a SoundBlaster 16.
Incidentally, the lowest frequency I have found that is an even
multiple of all commonly used sampling frequencies is 7.056 MHz. It
uses a divider of 160 for 44.100 kHz and a divider of 147 for 48 kHz.
-hpa
--
PGP: 2047/2A960705 BA 03 D3 2C 14 A8 A8 BD 1E DF FE 69 EE 35 BD 74
See http://www.zytor.com/~hpa/ for web page and full PGP public key
I am Bahá'í -- ask me about it or see http://www.bahai.org/
"To love another person is to see the face of God." -- Les Misérables
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