On 1/11/12 09:09 , sms88 wrote:
On 1/10/2012 9:29 PM, MotoFox wrote:
And it came to pass that Richard Evans delivered the following
message
unto the people, saying~
Actually I'm not sure, but in the past there have been broadcasts in
foreign countries, at up to 320k, and never at any bit rate
higher than
that. Also I thought the limit for mp2 was 320k, but I might be
wrong
about that.
MP3 tops out at 320k. MP2 tops out at 384; sample rates,
32000-48000 Hz. I
don't believe MP3 is used over the air, but it is widely used for
Internet
audio streams.
http://en.wikipedia.org/wiki/MPEG-1_...specifications
(Oh yeah, and MP3 can't claim to have won an Emmy....)
LOL.
In the real world of radio what matters in terms of audio quality is
what radio listeners perceive. There have been extensive tests
comparing perceived audio quality of the different digital sources.
And here's what you're missing. This is a survey of a general
population. Of which many will be audiophiles. Many will be audio
neutral. Many will be tone deaf. And many will simply not understand
what they're hearing well enough to give a meaninful answer.
Many of audiophiles have spent tens of thousands of dollars in
hardware, and can tell the difference between a high bit mp3 and a
full bandwidth CD reject out of hand the forced acceptance of low
bit audio simply because those who don't know, don't hear, and don't
care, accept the performance of HD radio as high quality, based on
untrained perception.
Low bit mp3s do not, will not and cannot be made to sound as
detailed, as clean, or as ear pleasing to those who know the
difference as what's currently in place, even when processed to
death. And there is no perceptual market place study of those who
don't know, don't hear, or don't care which will change that.
These perceptions are not reality.
And those of use who can hear the difference, take offense at the
reduction in audio quality that's being rammed down our throats by a
company that takes the perceptions of those without discriminating
ears as defacto proof that their marketing claims are truth.
The fact is that HD radio does NOT perform as claimed. And
there's no mass marketing perception that will change that reality.
HD radio is a fraud perpetrated on the public by a company
looking to make a killing on a technical claim that the public
doesn't understand, and is largely unaware of.