On Fri, 2006-09-15 at 15:50 +0530, Vishwas P S wrote: > Hi group, > > I have a noise problem whenever I record sound with arecord. > The sound seems to be very loud and it often gets clipped .. looks > like the signal gets overloaded and gets clipped often.\ > I've ensured that the Mic gain is kept at a minimum and still it > happens. > (For the same config OSS gives a very low volume) > > What could be the problem. Pl help out Your correct in that your input signal is being clipped because the gain is too high. It's worth checking the audio path between your mic and ADC to make sure that there an no other amplifiers increasing the input gain. Please note that some ADC's can also increase gain. It's also possible that your hardware has ALC/AGC (Automatic Level|Gain control). This automatically changes the gain depending on the volume of the input signal so that the volume captured is constant. This will also cause clipping if the settings are too high. Liam ------------------------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-devel
