Using your phone's internet browser
go to:  qna.rediff.com
Click and drag this link to
the Home icon in your browser.
Q.

Could you please tell me about different types of audio and video formats?

Asked by rami reddy, 08 Jul '07 10:45 am
  Invite a friend  |  
  Save  |  
 Earn 10 points for answering
Answer this question  Earn 10 points for answering    
4000 characters remaining  
  
    
Keep me signed inNew User? Sign up

Answers (1)

1.

Year Media formats Recording formats
==== =========== ================
1877 Phonograph cylinder Mechanical analog; "hill-and-dale" grooves, vertical stylus motion
1883 Music roll Mechanical digital
1895 Gramophone record Mechanical analog; lateral grooves, horizontal stylus motion
1898 Wire recording Analog; magnetization; no "bias"
1930s Reel-to-Reel, Magnetic Tape Analog; magnetization; "bias" dramatically increases linearity/fidelity
1948 Vinyl Record Analog, with preemphasis and other equalization techniques (LP, RIAA). Lateral grooves, horizontal stylus motion.
1957 Stereophonic Vinyl Record Analog, with preemphasis and other equalization techniques. Combination lateral/vertical stylus motion with each channel encoded 45 degrees to the vertical.
1962 4-Track Analog, 1/4 inch wide tape, 3 3/4 inches/sec, endless loop cartridge.
1963 Compact Cassette Analog, with bias, preemphasis, 0.15 inch wide tape, 17/8 inches/sec. 1970: introduced Dolby noise redu ...more
Answered by LALITKUMAR RANA, 08 Jul '07 10:49 am

 
  
Report abuse
Useful
 (0)
Not Useful
 (0)
Your vote on this answer has already been received

Ask a Question

Get answers from the community

600 characters remaining

Related Answer

Q.
A

I never ever tried on iPod....!..more

Answered by Dil Se