Audio problem converting Avi, Wmv, Mpeg to Flv

[arwchurch]

Hi all,
I have a problem with the audio quality when converting files to an FLV format. The original and saved AVI, WMV, MPEG or MOV file plays and sounds fine. However, when I convert them to FLV, the audio sounds as if the person speaking is talking through a piece of aluminum foil. There is a high pitched background noise. The recording is of church sermon, and a Samsung videocam is used. After recording, I then download to either Cyberlinks "PowerDirector" or Windows "MovieMaker" for editing. The converters I have tried have been from: Format Factory, Prism, and Sothink ( all freeware). I have also tried adjusting the codecs and bitrates to no avail. I aml a novice so still learning.
Thanks for your feedback.

Patrick

[transporterfan]

Why specifically FLV? MP4 is easier to work with. You might even be able to remux the original audio and video into the container.
Pazera Video Converters Suite has a dedicated Video to FLV/SWF converter I can vouch for if you must use FLV.
If the video quality seems to suffer, manually enter a higher bitrate.