This report follows up a RH support incident, where it was suggested this is not a configuration broblem. I have a shiny new Dell precision 410 workstation, preinstalled with RH6.0 SBE The audio hardware claims to be a 16-bit PNP Crystal 3D CS4237B card in the system documentation. Unfortunately there is a distinctive load click from the audio device whenever it starts to play sound. This can be demonstrated in various ways: 1) Playing any audio file using the sox play command. 2) Playing any audio file using out own audiolibrary code (Edinburgh Speech Tools) 3) Playing the audio example of Linus with the Red Hat supplied sndconfig program. It is much more noticable with speech as it usually starts with a few milliseconds of silence. Unforunatley this is what the machine spends its life doing... I have known this phenomenon to occur with some other (but not all) Crystal based sound cards, so it can probably be easily reproduced with similar hardware. usefull info: conf.modules: alias sound cs4232 pre-install sound insmod sound dmabuf=1 alias midi opl3 options opl3 io=0x388 options cs4232 io=0x534 irq=5 dma=1 dma2=0 mpuio=0x330 mpuirq=5 synthirq=-1 synthio=-1
Bug 5391 has been closed because Red Hat Linux 6.0 is no longer supported and won't be fixed. I have found that most bugs with Crystal sound were fixed by 6.2 and definately by 7.2 [My Similar Dell box runs fine with 7.2 and sound.]