Michaud interview on 580 CFRA News Talk Radio

Josh and Lisa Michaud discuss their symptoms from living near industrial wind turbines.

8 thoughts on “Michaud interview on 580 CFRA News Talk Radio

  1. The sound emissions from a wind turbine are largely inaudible at medium distances. The frequency of much of this energy is too low for it to be audible, but this ‘total envelope’ sound can still be measured using a microphone.
    The touch/position detection receptors in the skin seem to detect intensity peaks and also pass a response to exposure to abnormal levels of impacting energy into the observer’s neural system.

    I have measured the intensity pattern from a trio of very early turbines. This has well defined peaks at the same frequency as the rotor blade passes of the supporting columns. There was to both myself and my wife, ‘Annoyance’ – an inaudible buzzing in the head at each rotor pass. But then, we have both been sensitised by exposure to LFN elsewhere.
    It seems that the annoyance sensation is worse if there is also a secondary source vibrating at between 100 and 200 Hertz.

    Annoyance can cause acute sleep deprivation , the sensation of vibration in the skin, headaches balance and other problems. Sensitised observers are woken by peaks in this ‘total sound intensity’.
    From their description the Michaud’s have only relatively mild annoyance, like my wife, but other acutely sensitised observers can testify to the complete disruption of living caused from what is often called ‘low frequency noise’ (LFN).

    The problem is that the response reaction sensation to LFN is always subjective. Each ‘sufferer’, according to the degree of sensitisation, can scale his annoyance level in relation to the impacting sound but I know of no general research to establish levels of LFN which provide a general nuisance. There can be no proof of annoyance and in England GENERALLY there is no legal redress against LFN. A neighbour can generate high levels of infrasound intensity by generating structural collisions with an attached house without any risk that he can be required to stop.

    The Michaud’s are unfortunate, but what they should be asking is whether the generating company can be persuaded to erect further turbines with different characteristics. This could perhaps mask out the intensity peaks in the present emissions.

    • Given the randomness of wind direction and speed even within short distances, it’s not plausible that turbine rotation could be synchronized in such a way as to provide a “cancellation effect ” of noise – more likely is an increase in the overall level of mayhem.

      • Mr Wrightman, I did not express myself clearly enough.

        I was not suggesting any ‘cancellation effect’. The benefit from adding further turbines is to introduce further masking. The additional energy input needs to be out of phase and with different frequencies. This would disrupt the rhythmical fluctuations in the emitted intensity and reduce the tendency for skin tactile receptors to achieve repetitive resonance with the energy supplies.

        I admit that I do not know if such an approach could achieve significant improvements at an acceptable cost, but the principle must surely be worth investigation. I imagine that the power companies have already done so.

        A major problem with the whole of the ‘Low frequency Noise’ issue is the secrecy with which the Sound Measurement Industry, the Neurologists and the Power and Water Companies surround their information.
        The fear of litigation is a powerful and unhelpful force.

    • Henry, You just made a good case for installing IWTs in urban areas where there cound be a masknig effect for IWT infra sound. The Green Energy Act applies to ALL of Ontario and since the present government has deemed IWTs are safe at 350-550 meters from homes then there is no reason why IWTs should not be in urban areas. Local councils have no say about this in urban areas as well. Transmission lines costs will be very much cheaper too.

      • Urban areas have very much better fire fighting equipment to fight high rise IWT fires and effect rescues. They also have high pressure water lines to fight fires. Rural areas don’t have these.

      • Would the “greenies” in the city have the audacity to say NO to wind turbines?

      • Ed:

        How could they say no? They’re silent, safe, green, unobtrusive and “friendly” — just ask Wilkinson — if you can find him.

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