Sound recorder in Ubuntu 12.10 hangs and says "no input found" while recording from microphone after 40 minutes.

After upgrading from 12.04 to 12.10, my sound recorder was unresponsive when the record button was pushed. it was fixed with some updates. but now, the sound recorder stops recording just after 40 minutes and hangs with a message "no input found". immediately, the system gets hanged and the recording done is lost. there is no other way but to hard reset the PC to make it working again. it happens every time I record via sound recorder over 40 minutes and there is no issue with memory in directory where it will be saved. it was smooth and ok in 12.04. I want to fix this. but nothing has been changed yet with all updates.

Can anyone help?

Abu Aaisha
Bangladesh