Le Fri, 31 Aug 2007 14:59:55 +0200, Jens M Andreasen <[EMAIL PROTECTED]> a écrit :
> Late one friday afternoon, a sound-engineer was sitting in his chair > admiring a brand new pair of flat frequency response monitors. He then > observed the following: > > For two frequencies represented by sine-waves and an octave apart to > have the same relative loudness, the higher octave will need to have its > amplitude adjusted to half of that of the lower octave.[1] > > Both frequencies will then force a membrane to travel the same distance > within a given timeframe - the higher will go half as far but twice as > often than the lower - and they will also both have the same speed or > steepness at the zero-crossing. > > Surprisingly, the lower frequency consumes four times as much energy > than the higher[2], although it is apparently not doing any more actual > work. > > > Therefore, it is a better excersize to take a walk around the block, > rather than running around in small circles. > > QED > > > cheers! // Jens M Andreasen > > Ahahah! It is why I go to my job with my bicycle. It take a longer time, but it is a much better exercise as to do the same with my car. And I do not contaminate the air of others with my bicycle. It is a word for that: respect, the only only remedy against the destruction of the environment, the racism and their consequences. Cheers, Dominique _______________________________________________ Linux-audio-dev mailing list [email protected] http://lists.linuxaudio.org/mailman/listinfo.cgi/linux-audio-dev
