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Reply-To: "Kevin Aylward"
From: "Kevin Aylward"
Subject: Re: Music - Do numbers matter?
X-Newsreader: Microsoft Outlook Express 6.00.2800.1106
Date: Sat, 4 Jan 2003 09:43:23 -0000
NNTP-Posting-Date: Sat, 04 Jan 2003 09:43:32 GMT
Robert Baer wrote:
> James Llort wrote:
>> I'm after a new sound system for my studio. I have very sensitive
>> ears so sound quality is of the upmost importance. I mostly enjoy
>> classical mustic, and I can hear the nasty 'stepping' on CD players
>> as the wonderful sound is horribly broken up into chunks with the
>> digital scheme. I'm guessing this is because my old system uses a
>> duel "1 bit" ADC. This brings me to my first question: How many bits
>> can a human ear detect? I would have thought an 8 bit sound card
>> from my old 286 would offer better sound quality, but it is rather
>> nasty I'm afraid. My 32 bit sound card isn't much chop either - I
>> want a sound card to hook up to my new system to listen to my MP3's.
>> I have looked but been unable to locate 128 bit soundcards - I guess
>> companies like Creative only care out the 'leaded ear majority'.
>> Does anyone know of an excellant sound card without digital
>> stepping? I'd prefer an optical output of some sort to prevent
>> phasing errors.
>> Now, to the meat of my question: What is the best sound system money
>> can buy(for under 5 grand)? I need your advice. This is for a small
>> room, roughly 15 by 15 feet. My problem is that I am 'super-size' and
>> find it very difficult to leave my house. No flames please, it's
>> genetic. But I degress...
>> Thanks to the internet, I have collected much technical information
>> from a varity of sound systems. Do all these numbers mean anything to
>> the ear, or is it all meaningless. Would I be better off with 40 WRMS
>> or 500WPMPO (whatever that means). I have been looking at quality
>> brands like Sony , Phillips and AudioPro. My problem is that because
>> of my weight I cannot listen to the systems in question - I'll have
>> to buy based only on audiophile magizine reviews and numbers. Which
>> one should I trust more? The "golden ears" who have listened to the
>> music, or the numbers?
>> This is not meant as a troll, I am genuinly interested.
>> Dr James Llort,
>> Department of Music
>> Purdue University
>> 1061 Freehafer Hall (FREH)
>> West Lafayette, IN 47907-1061
> The human ear can detect phase variations to at least 100Khz.
No it cant. This has already been thrashed out. The ear dose *not*
respond to static phase shifts at all. The ear is essentially a Fourier
analyser. This is not debatable.
The way the ear can detect the *effects* of phase changes is by:
1 Having at least two sources with different phases. This causes
frequency response variations.
2 Modulating the phase in time. This gives a frequency spectrum
> And for waveforms to be accurately rendered from a digitized source,
> one needs sampling at least 10X of the top end, to have a reasonable
> approximation of the transients and high frequency components.
> This means 1Mhz minimum sampling, which *NO* commercial outfit would
> even !think! of doing.
You have no idea what your talking about.
SuperSpice, a very affordable Mixed-Mode
Windows Simulator with Schematic Capture,
Waveform Display, FFT's and Filter Design.
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