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#1
October 9th 03, 09:27 PM
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#2
October 10th 03, 05:03 AM
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"Diphthong" wrote in message ... (Robert Orban) wrote in message ... Since the HDC codec provides 15 kHz bandwidth in stereo, while analog AM stereo is limited to perhaps 9.5 kHz (given an ideal receiver and understanding the absolute need for a 10 kHz carrier-beat filter), the digital signal will sound far better to anyone whose hearing acuity extends to 15 kHz, which is the bandwidth commonly accepted as being necessary for an impression of high fidelity. The digital signal will also have a noise floor in excess of 90 dB below 100% modulation, making it immune to the static and manmade noise that has caused so many problems on the band in the last few decades. Even disregarding the subtleties (of which there are many), these two factors alone make HD AM dramatically superior to analog AM stereo. I'd rather put up with some noise and limited bandwidth so long as the program sounds RIGHT and natural... rather than a strange unnatural swishing sound that just happens to have wide bandwidth and low noise floor. The brain filters out noise and ignores lack of 'highs'.. but when the whole sound of the thing is as if it's all come through a satellite videophone.. yuk! I've given up on broadcasting as a source of good audio, the only way to get good sound is to buy music. And, since I refuse to pay a penny to the record companies unless I really can't help myself, this means things have gotten depressingly limited. Modern life is indeed rubbish. Learn to play an instrument or go to live performance. -- RobH The future's dim, the future's mono. |
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#3
October 10th 03, 03:36 PM
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"RobH" wrote in message ...
I've given up on broadcasting as a source of good audio, the only way to get good sound is to buy music. And, since I refuse to pay a penny to the record companies unless I really can't help myself, this means things have gotten depressingly limited. Modern life is indeed rubbish. Learn to play an instrument or go to live performance. very practical while driving, I'm sure |
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