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Analog vs digital!???
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<blockquote data-quote="helotaxi" data-source="post: 2934941" data-attributes="member: 550915"><p>If all signal tranmission was done in the digital domain, you would not need a gain control on the amp. You would however need to have a standard sampling rate and number of bits per sample. The first will dictate the linearity and resolution of the signal and the second the dynamic range of the system. Higher is better on both though going beyond 44kHz and 16bit is kind of pointless since that is the resolution of the best current digital source material out right now, the CD. The difference between a CD and a record is that the record has an infinite sampling rate (the definition of analog) but the dynamic range is limited by the ability of the stylus to track the groove. The CD has a better dynamic range because of the lack of a physical pickup.</p><p></p><p>The way a digital version of an analog signal works is the signal in broken down into discrete samples (sampling rate; 44kHz for a CD) and a discrete number of voltage steps (16 bits on a CD; 2^16=65,536 steps between the negative signal peak and the positive signal peak). The analog to digital convertor takes snapshots of the signal at the sampling rate and translates that snapshot into a binary representation of the voltage of the signal at the exact time of the snapshot (note: an mp3 works totally differently). the digital to analog convertor does the same thing in reverse. It takes the binary stream and "redraws" the original signal.</p><p></p><p>Going full digital would be nice though you'd still run into issues of compatibilty, cause I can pretty much promise that no two companies would go about it the same way.</p></blockquote><p></p>
[QUOTE="helotaxi, post: 2934941, member: 550915"] If all signal tranmission was done in the digital domain, you would not need a gain control on the amp. You would however need to have a standard sampling rate and number of bits per sample. The first will dictate the linearity and resolution of the signal and the second the dynamic range of the system. Higher is better on both though going beyond 44kHz and 16bit is kind of pointless since that is the resolution of the best current digital source material out right now, the CD. The difference between a CD and a record is that the record has an infinite sampling rate (the definition of analog) but the dynamic range is limited by the ability of the stylus to track the groove. The CD has a better dynamic range because of the lack of a physical pickup. The way a digital version of an analog signal works is the signal in broken down into discrete samples (sampling rate; 44kHz for a CD) and a discrete number of voltage steps (16 bits on a CD; 2^16=65,536 steps between the negative signal peak and the positive signal peak). The analog to digital convertor takes snapshots of the signal at the sampling rate and translates that snapshot into a binary representation of the voltage of the signal at the exact time of the snapshot (note: an mp3 works totally differently). the digital to analog convertor does the same thing in reverse. It takes the binary stream and "redraws" the original signal. Going full digital would be nice though you'd still run into issues of compatibilty, cause I can pretty much promise that no two companies would go about it the same way. [/QUOTE]
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