Bad voice quality on a Dialogic DIVA Analog 4

Hi all

I just installed a brand new DIVA Analog 4 PCI on my XP computer.
The installation of the System Release 8.5WIN was easy (much easier then the
Dialogic SR 5.1.1 for the other cards ...)
I used my test application that plays WAV files over the TAPI driver.
The card immediately picked up an incoming call and played my test voice
file (PCM 8kHz, 8 bit, mono).
The sound quality however is very bad :-(
On the Dialogic D-4PCI I had to increase the sampling rate to (PCM 11025,
16bit, mono) for a decent voice quality. Is there a default (best quality)
setting on the Diva too ? Are there any other settings to consider ?

Thanks for every hint!

Rds
Marc


.

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