6 Apr
2006
6 Apr
'06
7:39 a.m.
Andrew!!! How's life post-Farilight? What are you up to now? Maybe off
list :-).
Andrew Cannon wrote:
I suggest using a Kaiser-window based interpolation
algorithm. This is
the best filter method to use for sample rate conversion. You can get
decent results with 8 taps or even fewer. For example you can get a 6dB
bandwidth of about 2.8kHz (at Fs=8kHz) with 50dB alias rejection. (of
course you need more taps for high-quality results)
By way of comparison, the fastest of my three sinc based converters has
a 3dB bandwidth of 3.2kHz with reference to Fs of 8kHz.
Erik
--
+-----------------------------------------------------------+
Erik de Castro Lopo
+-----------------------------------------------------------+
"A mouse is a device used to point at the xterm you want to type in."
-- Kim Alm, a.s.r