Hi Tim, I'd not heard of this psycho-acoustic effect before. I've always had problems with hearing the correct pitch when music is loud. When music is loud If I turn my head the sound changes pitch slightly. I've been aware of this for quite a while now, a while back, I did a kind of ear test using headphones in my little studio. I set up a dry synth sound something like the sound you'd hear if having your ears tested, I was surprised to find that my left ear was perceiving the pitch to be close to a quarter of a semi-tone flatter than my right ear. The Ear plugs are being sorted as soon as possible. I need to stop being such a fool and take more care. Thanks again Tim, Steve W ---- Original Message ----- From: Tim Burgess To: ddots-l@xxxxxxxxxxxxx Sent: Tuesday, May 03, 2011 12:46 PM Subject: [ddots-l] Re: Ot loud stage Steve, There's a well documented psycho-acoustic effect where your perception of pitch is altered by volume. This is the reason that a lot of perfectly decent studio singers appear to be singing flat when they're on stage. The only solutions are to either get everybody to turn down, or reduce the volume you're experiencing by wearning plugs, etc.. Volume at te level required to cause this issue is definitely harmful to your hearing over a relatively short period, so you need to take this issue seriously. Best wishes. Tim Burgess Raised Bar Ltd Phone: +44 (0)1827 719822 Don't forget to vote for improved access to music and music technology at http://www.raisedbar.net/petition.htm From: ddots-l-bounce@xxxxxxxxxxxxx [mailto:ddots-l-bounce@xxxxxxxxxxxxx] On Behalf Of Steve Wicketts Sent: 01 May 2011 11:52 To: ddtots Subject: [ddots-l] Ot loud stage Hi all, At the end of last night Show, I was asked to join the band (who was topping the bill) The house mix was controlled by a sound engineer, however, the Band's stage mix was simply their independent Guitar and bass amp levels. My two questions are, 1: has anyone else been on a loud stage environment where it sounds like the keyboard is in a different key to the other instruments until the levels drop during the music, at that point you then hear the key for what it is? 2: When the stage level is so loud you can't hear the keyboards, is there any technique that totally visually impaired musicians use to A: know your hitting the right notes and B: keep metronomic? I struggled last night with these particular issues, I always have a slight Doppler effect when music is loud, I especially don't always hear the bass notes as clear defined pitcht notes. Steve W __________ Information from ESET NOD32 Antivirus, version of virus signature database 6084 (20110430) __________ The message was checked by ESET NOD32 Antivirus. http://www.eset.com __________ Information from ESET NOD32 Antivirus, version of virus signature database 6092 (20110503) __________ The message was checked by ESET NOD32 Antivirus. http://www.eset.com __________ Information from ESET NOD32 Antivirus, version of virus signature database 6092 (20110503) __________ The message was checked by ESET NOD32 Antivirus. http://www.eset.com