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Posted by Smarty on 01/11/06 21:51
Nappy,
I am glad to continue the technical discussion regarding the ability of HDV
sound to be excellent. It was your contention that HDV sound was inherently
poor since the sample(s) you heard from some camcorder(s) sounded poor. It
was my reply that the camcorder was most likely the culprit, since HDV audio
is encoded at a sample size (12 or 16 bit) and at a sampling rate (384
Kb/sec) which has been totally capable of handling Digital Dolby 5.1 channel
sound, and virtually all DVDs, HD television cable and satellite
broadcasting, etc. use this (or a lesser format) to handle 5.1 channels
extremely well. It was thus my observation that HDV should therefore
***NOT** be inherently limited in terms of quality, particularly since it
only needs to encode 2 stereo channels and fit them into the bandwidth
otherwise occupied by 5.1.
Your reply was that the HDV sound format was a delivery format and not an
acquisition format, and thus it was "irrelevant" that the format inherently
provided the necessary bandwidth and sampling depth to convey high quality
audio.
Had you made the observation that editing compressed audio was more
difficult, or that the quality was somehow compromised when doing so, I
would agree, just as editing MPEG2 video can and often does result in
degradation. You made no such argument.
The fact that a format is declared to be "acquisition" or "delivery" does
not change its' inherent ability to deliver excellent quality. Two stereo
channels which have been compressed to 384 kbit/sec rates are vastly better
than even the most critical mp3 audiophiles bit rates, which seldom exceed
even half that rate. A number of published studies done by several
independent labs and presented in Sound and Vision Magazine, Maximum PC, and
other places present a lot of anecdotal evidence to support this.
Therefore, I suggest that Sony, JVC, Canon made a perfectly reasonable
choice when designing the HDV format to use a 384 kbit/sec rate with 16 (or
12) bit samples, and that well designed camcorders and other audio
processors will deliver excellent sound.
Smarty
"Nappy" <noemail@all.com> wrote in message
news:Wjaxf.17618$oW.11977@newssvr11.news.prodigy.com...
>
> "Smarty" <nobody@nobody.com> wrote in message
> news:pv6dnTwOT7UcmFneRVn-hA@adelphia.com...
>> Martin,
>>
>> It was not a coincidence that I reacted so violently to Nappy. In a prior
>> exchange, he dismissed my technical argument (regarding HDV audio format)
> as
>> "irrelevant" and apparently likes to "cover his ears up" childishly when
>> presented with facts he disagrees with. The ability to engage in a
>> meaningful debate / discussion is not there. And thus I resorted to
>> unnecessarily rude behavior myself, for which I apologize.
>>
>
> Smarty.. In desperation you went as far as to mention Dolby release
> formats
> to try and shore up your argument for MP3 audio as an aquisition format.
> You
> became frustrated when I disagreed with you basedon my experience. If that
> is a meaningful debate for you then you are indeed confused. You offered
> no
> technical argument whatsoever.
>
>
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