David,
A regular 16 bit soundcard will do well when being used for digital
modes. Yes, the better soundcards have a lower noise floor which can
help, but great bandwidth and bit rates are not required for those
applications.
OTOH, if you are looking at panadapter applications, a good soundcard is
important to get 192 kHz span width with low noise, and you sill want to
use it at the higher bit rates unless you are satisfied with a 96 kHz span.
Select your needs and then select the soundcard that will fulfill those
needs. Even the lowly 16 bit cards are adequate for data mode applications.
73,
Don W3FPR
On 11/11/2014 8:51 PM, [email protected] wrote:
Im just curious
I can see the bit depth making a difference 16 bit will have poor
dynamic range compared to 24 or 32 bit and this is important for some
modes like wspr or JTXX, but is there any advantage to high bit
rates in digital modes even a 44khz card has a bandwidth way beond
what any digital mode on HF needs. or is it that to get a 32bit
adapter just by default it will have high bit rates.
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