On Mar 23, 9:05 pm, [email protected] wrote: > Under these conditions, the HUM is a fairly loud presentation of a > diesel engine idling.
Why do you not think that the hum is actually *from* a diesel engine? There are millions of them around the world. There are very large ones in every port and industrial area. The sound from those can travel at least 20 Km. In the country there are very likely to be generators for electric power, and farm machinery. The solution is simple. Find somebody with good hearing who can tell the direction of the hum. Follow it and find the cause. Or record the hum using the means that I have described here in the past. The sound can be analysed for frequency, which may give a clue to its source. At the least it will prove to everyone that the hum exists, when you play it over big speakers as I have done. --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Hum Sufferers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/hum-sufferers?hl=en -~----------~----~----~----~------~----~------~--~---
