X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from elasmtp-galgo.atl.sa.earthlink.net ([209.86.89.61] verified) by logan.com (CommuniGate Pro SMTP 6.0.7) with ESMTP id 6617375 for lml@lancaironline.net; Wed, 27 Nov 2013 21:44:56 -0500 Received-SPF: none receiver=logan.com; client-ip=209.86.89.61; envelope-from=colyncase@earthlink.net DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=dk20050327; d=earthlink.net; b=SVhYVZxxwVTYVeEqgTbIZ4k3bLlzWo8Wz3MMRvlLbJG1GM+sjexf8BDTd7PfE6v3; h=Received:From:Mime-Version:Content-Type:Subject:Date:In-Reply-To:To:References:Message-Id:X-Mailer:X-ELNK-Trace:X-Originating-IP; Received: from [70.105.253.253] (helo=[192.168.1.24]) by elasmtp-galgo.atl.sa.earthlink.net with esmtpa (Exim 4.67) (envelope-from ) id 1VlraZ-0006VT-2O for lml@lancaironline.net; Wed, 27 Nov 2013 21:44:23 -0500 From: Colyn Case Mime-Version: 1.0 (Apple Message framework v1085) Content-Type: multipart/alternative; boundary=Apple-Mail-30--722432424 Subject: Re: [LML] Re: Soundproofing LN2 Date: Wed, 27 Nov 2013 21:44:20 -0500 In-Reply-To: To: "Lancair Mailing List" References: Message-Id: <88979DDD-F016-400E-B892-7A23EEA29607@earthlink.net> X-Mailer: Apple Mail (2.1085) X-ELNK-Trace: 63d5d3452847f8b1d6dd28457998182d7e972de0d01da940db6fe2d723a9cb5e56d8f1e657507720350badd9bab72f9c350badd9bab72f9c350badd9bab72f9c X-Originating-IP: 70.105.253.253 --Apple-Mail-30--722432424 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=windows-1252 Well I have Bose X and I can say a IV-P is seriously more noisy than my = old TR182 even with the Bose headsets. Besides, I've always wondered if = your body "knows" it's being blasted by all that vibration even if your = ears don't. I've also wondered if your ears don't really like it. = Even though you don't perceive a loud noise, the technology involves a = slight phase shift between the original sound wave and the canceling = sound wave, which probably yields a lot of very high frequency = artifacts. Any auditory experts care to comment on that? On Nov 27, 2013, at 2:13 PM, George Wehrung wrote: Yeah they don't make those for dogs yet... So still need to sound proof = my plane as well. And currently the pax will have to wear David = Clark's.=20 Sent from my iPhone On Nov 27, 2013, at 10:51, Berni Breen wrote: > If you don't already have them, try either BOSE or Lightspeed = headsets. I believe either will produce your desired sound environment. >=20 > Berni Breen > Sent from my iPhone >=20 > On Nov 26, 2013, at 12:21 PM, "Stevens Family" = wrote: >=20 >> I have just done a search of the archives under =93sound proofing=94, = and found some very useful information. However I notice that most of = this discussion took place some years ago. So my question for the list, = is what are builders using nowdays to reduce cockpit noise? >> =20 >> Any suggestions would be much appreciated. >> =20 >> Regards, >> =20 >> Rob Stevens, >> Perth, Western Australia >> =20 >> =20 --Apple-Mail-30--722432424 Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=windows-1252 Well = I have Bose X and I can say a IV-P is seriously more noisy than my old = TR182 even with the Bose headsets. Besides, I've always wondered = if your body "knows" it's being blasted by all that vibration even if = your ears don't. I've also wondered if your ears don't really = like it. Even though you don't perceive a loud noise, the = technology involves a slight phase shift between the original sound wave = and the canceling sound wave, which probably yields a lot of very high = frequency artifacts. Any auditory experts care to comment = on that?

On Nov 27, 2013, at 2:13 PM, George Wehrung = wrote:

Yeah they don't make those for dogs yet... So = still need to sound proof my plane as well. And currently the pax = will have to wear David Clark's.

Sent from my = iPhone

On Nov 27, 2013, at 10:51, Berni Breen <bbreen@cableone.net> = wrote:

If= you don't already have them, try either BOSE or Lightspeed headsets. = I believe either will produce your desired sound = environment.

Berni Breen
Sent from my = iPhone

On Nov 26, 2013, at 12:21 PM, "Stevens = Family" <stevens5@swiftdsl.com.au> = wrote:

I have just done a search of the archives under = =93sound proofing=94, and found some very useful information. However I = notice that most of this discussion took place some years ago. So my = question for the list, is what are builders using nowdays to reduce = cockpit noise?

Any = suggestions would be much appreciated.

Regards,

Rob = Stevens,
Perth, Western = Australia

=

= --Apple-Mail-30--722432424--