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Tape Trail Reel to reel, cassette and other analogue tape formats. |
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Tape Trail Reel to reel, cassette and other analogue tape formats. |
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In Reply to: RE: Cassettedeck expert - anyone? posted by dingo dave on December 12, 2008 at 13:41:48:
On measurement of things like absolute dynamic range and frequency response cassette deck will fall short on any scope or printed out chart BUT! you have to look at it deeper at things. A better to great quality deck especially if it has 3 heads and a good Type IV metal tape will have a frequency response that will cover every audio frequency of digital and maybe even more, no brick wall filter, no need for over sampling etc. Just a wide range recorded frequency response. Employing Dolby C or better Dolby S at a recorded level of 0db with a metal tape will see the better 3 head decks even reach out close to 20KHz. even less pricy decks may reach beyond 15Khz at 0db. Now most high frequencies will never reach 0db output on a typical music recording, usually only mids and bass may go into 0db range. Highs usually drop off to -6 or -10 db range and any decent cassette deck with even a good Type 1 tape will cover out to 20Khz region at -10.
Signal to noise ratio with Dolby B will be lower tan a CD or other high quality digital recording but is still more than enough for most listeners. Dolby C nr got cassettes into audibly the quiet range. In other words humans would not be able to effectively hear tape hiss on all but the most quiet recordings in a quiet listening room. Dolby S achieved a greater amount of S/N ratio and overcame Dolby C's side effects (tape sensitivity mis-match and deck to deck mismatch in decoding). S/Ratio with Dolby S on a metal tape was almost equal to a CD. Dynamic range using esp. Dolby C or Dolby S with a good Type II or better Type IV tape was more than wide enough for most recording material.
Recording audio onto a good or better deck with a good tape using good discipline makes recordings as good a any digital overall and in maybe better as they do not have that digital edge often heard on CD's and other formats (I have heard it on DVD-A discs too). Lets not even bother wit the crappy sound of Mp3.
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- RE: Cassettedeck expert - anyone? - Time_Stands_Still 15:06:32 12/12/08 (0)
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