Hi, I am using headphones from last 18 months to listen to jaws in office. Previously i used to use earplugs which go in the ear but from sometime now i have switched over to headphones which remain outside the ear. Wearing light weight headphones is easy on head also while the sound not directly hitting the eardrums.
Also i have always used the earplugs/headphones only on one ear to listen to jaws and left the other ear for catching up with the ambience. I liked the idea of Harish of placing the earphone little below the ear. best wishes, Pranay Gadodia, Project Eyeway - A comprehensive information helpdesk on eye & blindness C/o Score Foundation. 125-B, Shahpur Jat, New Delhi - 110 049 INDIA. Helpdesk:+91 9968 329 329 (Monday to Friday 11am to 4pm) Office Phone: +91 - 11 - 2649 4582/81 Email: [EMAIL PROTECTED] Website: www.eyeway.org ----- Original Message ----- From: "Harish Kotian" <[EMAIL PROTECTED]> To: <accessindia@accessindia.org.in> Sent: Tuesday, May 01, 2007 8:05 AM Subject: Re: [AI] Fw: Hearing loss. Hi Subramani That wearable type of headphone I talked earlier I saw it for the first time while on a flight on Austrian airlines. I haven't seen that type here. I understand it is available overseas. Although unscientific you can determine a ressonance frequency when you get a crackled noise when a particular frequency is played on the speaker. It works like an overdrive on that frequency. Using headphone out of compulsion should be taken like an occupational hazard. The damage can be reduced by placing the headphone as much away from the ear. We can still reasonably hear well if we position the ear bud below the ear. A good practise would be to keep the pitch and treble as much low as possible This may not work in all places. It all depends on the ambient noise. Spikes too are very damaging. This carries high energy for a short duration. It is also very damaging to electronic equipment. Spike is that click sound we hear, on a speaker, when a switch, is either turned on or off, in close vicinity. It will not be a good idea for us to listen to music or a leisure book on the headphone. We can be kind to our ears to that extent. Probably using cotton may not be entirely useful, it may be helpful to soften the amplitude. That you can, anyway control, with the, volume control on your headphone. However, if you allow some ambient noise to come through, it can help you in cancelling and softening some of the frequencies generated by the headphone. Again, it is highly location specific depending of ambient noise. Harish. ----- Original Message ----- From: "Subramani L" <[EMAIL PROTECTED]> To: <accessindia@accessindia.org.in> Sent: Monday, April 30, 2007 10:15 AM Subject: Re: [AI] Fw: Hearing loss. > Hai Harish: > > Can you give more details on the headphone you had mentioned in your > mail --the maker, cost and if it's available in India. > > Also, is resonance such a damaging thing even if the headphone has > volume control? > > Though I have been using headphones for three years, almost > continuously, I have taken one small measure of precaution --though I > don't know to date if that can be a precaution at all. I cover my ears > completely with cotton, so that the sound doesn't hit the drums straight > away. > > > > Subramani > > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of Harish > Kotian > Sent: Monday, April 30, 2007 7:33 AM > To: accessindia@accessindia.org.in > Subject: Re: [AI] Fw: Hearing loss. > > *********************** > No virus was detected in the attachment no filename > > Your mail has been scanned by InterScan. > ***********-*********** > > > Hi Pranav > > I did read in the past of research stating that headphones adversely > effect > hearing. > > There are basically 3 issues here. firstly is the amplitude that is the > volume level that can be damaging. > > The second issue is that of frequency. There is more energy carried in > higher frequencies. > > The third issue is that of ressonnence. The energy is fully focused on > this > frequency. > > Each speaker or headphone may have different resonnence frequency. That > is > chiefly depended on the construction of the device, material used and > the > final assembly of the device. > > Sound is also a form of energy and when one listens on a headphone the > there is practically no distance gap between the source of energyand the > ear > drum which is the target. > > Nature has not factored for it in its origin design <smile>. > > Harish. > > ----- Original Message ----- > From: "Pranav Lal" <[EMAIL PROTECTED]> > To: <accessindia@accessindia.org.in> > Sent: Sunday, April 29, 2007 9:17 PM > Subject: Re: [AI] Fw: Hearing loss. > > >> Hi, >> >> Firstly, is this information genuine? The author of the e-mail is > rather >> wague in terms of citing references and sources. >> Secondly, assuming for a moment that the message is true, the speech >> synthesiser such as eloquence produced similar frequencies? >> >> Pranav >> >> >> To unsubscribe send a message to > [EMAIL PROTECTED] >> with the subject unsubscribe. >> >> To change your subscription to digest mode or make any other changes, >> please visit the list home page at >> > http://accessindia.org.in/mailman/listinfo/accessindia_accessindia.org.i > n >> > > > > To unsubscribe send a message to [EMAIL PROTECTED] > with the subject unsubscribe. > > To change your subscription to digest mode or make any other changes, > please visit the list home page at > > http://accessindia.org.in/mailman/listinfo/accessindia_accessindia.org.i > n > > > To unsubscribe send a message to [EMAIL PROTECTED] > with the subject unsubscribe. > > To change your subscription to digest mode or make any other changes, > please visit the list home page at > http://accessindia.org.in/mailman/listinfo/accessindia_accessindia.org.in > To unsubscribe send a message to [EMAIL PROTECTED] with the subject unsubscribe. To change your subscription to digest mode or make any other changes, please visit the list home page at http://accessindia.org.in/mailman/listinfo/accessindia_accessindia.org.in To unsubscribe send a message to [EMAIL PROTECTED] with the subject unsubscribe. To change your subscription to digest mode or make any other changes, please visit the list home page at http://accessindia.org.in/mailman/listinfo/accessindia_accessindia.org.in
