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HyperboLine ™ new Player in the Old Game
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<blockquote data-quote="John Roberts" data-source="post: 107947" data-attributes="member: 126"><p>Re: HyperboLine ™ new Player in the Old Game</p><p></p><p></p><p></p><p>I suspect you are both right. The telcos have been dealing with electronic amplification for a long long time, with crude transducers on either end so were happy just to deliver intelligible speech. The telephone company was also a very early player in digital audio, and that 8kHz sample rate no doubt was established with a sharp pencil for how low could they get away with. In addition to that low sample rate, the original telephone codec conversions used a low word length (bit depth?) with non-linear quantization step size. There was more resolution around zero crossings, for less perceived distortion with speech. The old telephone conversions made MP3 sound good, but has gotten better over time as technology gets cheaper. Some of the codecs used in modern cell phones don't suck, while not up to audiophoolery standards. </p><p></p><p>JR</p></blockquote><p></p>
[QUOTE="John Roberts, post: 107947, member: 126"] Re: HyperboLine ™ new Player in the Old Game I suspect you are both right. The telcos have been dealing with electronic amplification for a long long time, with crude transducers on either end so were happy just to deliver intelligible speech. The telephone company was also a very early player in digital audio, and that 8kHz sample rate no doubt was established with a sharp pencil for how low could they get away with. In addition to that low sample rate, the original telephone codec conversions used a low word length (bit depth?) with non-linear quantization step size. There was more resolution around zero crossings, for less perceived distortion with speech. The old telephone conversions made MP3 sound good, but has gotten better over time as technology gets cheaper. Some of the codecs used in modern cell phones don't suck, while not up to audiophoolery standards. JR [/QUOTE]
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