Compressed recordings
cmalak -- Mon, 04/27/2009 - 18:46
Does anyone know how many mins of recording an audio CD can carry when the music has been recorded at full 44kHz/16 bit resolution? Is this a good way to assess whether an audio CD one is buying has overly compressed recordings (i.e., if the answer to the question above is 50 mins for sake of the example and you buy a CD with 120 mins worth of music on it, then one knows that the audio resolution is going to be sub-standard)? Thx
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I just checked wikipedia and looks like max playback time on redbook CD with 44/16 encoded resolution is 74 mins.
The Compact Disc format is 44kHz, and 16 bits of resolution. If there is audio compression, 74 minutes is 74 minutes. A CD can be made from an LP..74 minutes, from a compressed digital source..74 minutes. Now, data compression is another issue, like MP-3, which will give significantly more recording time at a "lossy" rate, and much inferior sound quality.
But, a "Red Book" CD is 74 minutes, no matter how you slice and dice it.
Mike
VinylGuy
Its all a black art to me but I can tell you I have some cds that run 78 mins and maybe more. If I rip and burn cds on my PC using Windows Media Lossless Bit Rate I can get about 80min.and it doesnt sound too bad. I could use a tip as to what is best bit rate to rip with though.