I hadn't tried recording for a couple months and had an "urge" to do so last night. This recording is somewhat different then my others as it seems to have musical tones or what almost sounds like a church bell chiming. The noise at the very end is my turning off the machine. This recording was done on the AVR setting between the hours of 1:30 AM and 9:30 AM. Again the "tsk" sound can be heard. There is one click you will hear due to my cigarette lighter while uploading the recording. All other noises I cannot explain.