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Low Earth Orbit
DIY Audio
60 Degree DIY Mid Hi - AKA PM60
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<blockquote data-quote="Bennett Prescott" data-source="post: 148398" data-attributes="member: 4"><p>Re: 60 Degree DIY Mid Hi</p><p></p><p></p><p></p><p>Pink noise has unbounded (i.e. infinite) crest factor - on a very very long time scale! The common misconception that it has e.g. 12dB crest factor probably came about because basically all real world signals have a 12dB crest factor. Sounds crazy, but real signals as presented to loudspeakers are pretty tightly band-limited. A signal with lots of peaks will have the sine components that created them misaligned by the phase shift inherent in that band-limiting, reducing the peak to average ratio. A super-dense heavily limited signal, unless it is literally a single sine wave, will have some of its separate components aligned by that same phase shift - creating a higher peak to average ratio. Anyway, you can pretty much count on 12dB crest factor for music.</p></blockquote><p></p>
[QUOTE="Bennett Prescott, post: 148398, member: 4"] Re: 60 Degree DIY Mid Hi Pink noise has unbounded (i.e. infinite) crest factor - on a very very long time scale! The common misconception that it has e.g. 12dB crest factor probably came about because basically all real world signals have a 12dB crest factor. Sounds crazy, but real signals as presented to loudspeakers are pretty tightly band-limited. A signal with lots of peaks will have the sine components that created them misaligned by the phase shift inherent in that band-limiting, reducing the peak to average ratio. A super-dense heavily limited signal, unless it is literally a single sine wave, will have some of its separate components aligned by that same phase shift - creating a higher peak to average ratio. Anyway, you can pretty much count on 12dB crest factor for music. [/QUOTE]
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60 Degree DIY Mid Hi - AKA PM60
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