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#23
August 17th 07, 03:34 AM
posted to sci.electronics.basics,rec.radio.shortwave,rec.radio.amateur.antenna,alt.cellular.cingular,alt.internet.wireless
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A more rational approach -- how I would like to change the cellphone industry.
RHF wrote:
On Aug 16, 4:29 am, "Brenda Ann" wrote: "John Navas" wrote in message ... On Thu, 19 Jul 2007 18:43:58 -0700, Don Bowey wrote in : On 7/19/07 4:42 PM, in article , "John Navas" wrote: On Thu, 19 Jul 2007 14:45:00 GMT, wrote in : In rec.radio.amateur.antenna Radium wrote: Digital cell phones should stop using the compression they use and start using monaural WMA compression with a CBR of 20 kbps or less and a sample rate of at least 44.1 KHz. In addition, the following must also apply: The audio bandwidth of the phone system is about 3 KHz. Actually more like 10 KHz. If he is commenting on the bandwidth of a message network channel/circuit, including cellular, it is about 3 kHz. Audio. Suggest you read more carefully. -- Best regards, FAQ FOR CINGULAR WIRELESS: John Navas http://en.wikibooks.org/wiki/Cingular_Wireless_FAQ POTS phone lines are very limited. IIRC from my work with those systems, about 300-3600 Hz. Strictly human voice range, not meant for hi-fi. Special lines are still available for hi-fi use as audio STL's ? "STL's" ? Studio to Transmitter Link. |
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