John R Pierce wrote: > Leonardo Vilela Pinheiro wrote: >> >> On 3/10/07, *Theo Band* <theo.band at xanadu-wireless.com >> <mailto:theo.band at xanadu-wireless.com>> wrote: >> >> I try to find a softphone that works with Asterisk and Centos44, >> does >> anyone has a good suggestion or is it better to buy a hardphone? >> >> >> AFAIK, microphone bad quality is more related to the hardware, not >> the software. My onboard "Intel high definition" sound chipset (ICH7 >> compatible - Intel 945GNT) has a bad output sound, but a much worse >> input (microphone). I have tried using Windows XP, CentOS, Ubuntu, >> many softphones (Skype, X-Lite, Ekiga, Twinkle) and definitely the >> problem is hardware (or all drivers are broken). > > the output quality of the Intel branded motherboards I've used has > been quite good. Microphone inputs somewhat less so, but still > plenty good enough for telephony IF your microphone has high enough > gain. If someone is recording high fidelity (music, etc) from > microphones, I recommend they get an external microphone preamp and > use the line input on their sound card, or even better a USB > input/output box. > > for voice/telephony, USB headsets are the way to go. I also have one trust USB headset and it works, except the volume cannot be adjusted, it's always max (and that's not nice for a headset...). I have 20 desktops running FC4/Centos44 on AMD based Motherboards. The sound is onboard using a Nvidia chipset. Using skype and esd/arts the sound is very good, no problem. As soon as I try any of the softphones the mic is heavily distorted. I can even hear a hum as if the ground shielding is not properly connected. Since skype works so nice (using eithers OSS or alsa) I expect this to be a software based problem not hardware. And one softphone is working with FC4 (slfphone) but not on Centos4.4. The mic sound is less compared to skype (there is a hiss, when pronouncing the letter 's' the sound is distorted) but upto now that's the only one that is acceptable for only FC4, not Centos :-( Theo