Hi Jerry, the bitrate is the rate at which data is sent, the data in
digital bits, the rate quoted per second, so it may be 192 kb/sec -
192 thousand bits per second for example. All digital transfer has a
bitrate. For data transfer the bitrate only affects how long the
transfer takes. For audio, which will be decoded in real time
obviously, the bitrate controls the amount of information decode-able.
All digital music and video is compressed using one of the several
standard codecs (can anybody tell me exactly what this stands for)
which is a mathematical compression/expansion algorithm. Different
codec have benefits pushed by their proponents but they are all
lossy. All the codecs have a bitrate above which sound quality is not
much improved but below which it quickly deteriorates. The DAB
standard, which is the digital radio standard broadcast, prematurely
perhaps, in the UK for several years now is MP2 which is fairly old
now and for best results requires higher bitrates than are often used.
Frank
On 1 Jan, 2006, at 20:34, Jerry Lehrer wrote:
Frank,
OK, I give up! What is a "bitrate"? I know what a bitartrate is, but not a bitrate.
Jerry
Frank Dernie wrote:
Good idea Richard. I shall mention it but one of the things she was wanting was to have a radio alarm to wake her up to the Radio 4 "today" programme, her computer is not in her bedroom! Frank I am pretty fond of Radio 7 too and I have a DAB tuner connected to my stereo so get it well enough. Sadly the bitrate for DAB has slowly got less and less since its introduction as they are jamming more and more channels onto the same multiplex. The hardwired standard is MP2 also - which means fairly high bitrates for top quality. I would say that only radio 3 on DAB is competitive with a good FM tuner nowadays :-(
On 1 Jan, 2006, at 15:42, Richard Knoppow wrote:
Hi Richard, my eldest daughter settled in Wales after studying for her PhD there. She speaks and reads some Welsh and is very happy and integrated. Her biggest regret though is that Radio 4, from the BBC, is not available. They have Radio Wales instead which has a much more parochial content, Radio 4 is more countrywide and worldwide. Radio 4 is permanently tuned to in the Dernie household and cars :-) My wife also speaks a little Welsh as she conducts a Welsh male voice choir. Frank
Its possible she might be able to hear Radio-4 on her computer, its available on the web. I am also a fan of Radio-4, and also Radio-7. I am on a dial up and get reasonable quality.
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