Show I the Air Ar to U Magnetic Tap Tape NEW YORK The The current rash ash of talk or public forum programming that has helped restore e radio to its place liS as a companion entertainment medium 1 n raised some interesting questions in the of 2 Why are listeners who call caU calla a station expecting to become deeply embroiled ill iii a con con- controversy ranging in tance from the for a stop a l IY CO Over enthusiastic participants in iii radio talk rams programs can hi bt quietly edited without nie- nie the tho live in ty thanks to the magnetic tape audio delay loop sign n ig-n at Main an and Chestnut to the Vietnam situation told to turn down clown their radios while they are arc on the a air i I r The Jise more than casual lie lis- tener ner is apt to wonder why sollie w words r dont don't slip over the air waves during a heated discussion How comel come According According- to the Corn Com Company pony pany who VhO manufactures Scotch Brand sound and video tapes for use in tele- tele television television vision and radio both questions relate to I a clever deyer tapo recording ice device used at the stations and se- se referred to as un an audio delay loop In Iii essence the loop is fa just that that-a two or three foot long loop of magnetic tape tapo that records the conversation passes it along a pulley affair to a playback sensing head then starts the process all over ain ag-ain again In the meantime sonic some seven or so Co seconds have elapsed from record secord to ci- ci allowing lowing losing ample time for a aim nim- ble engineer to cut an over enthusiastic participant Posit pant before one of those words is transmitted Ir If a participant listener were Indeed to leave the vol- vol volume time ume up on the family radio set he would be competing with himself by listening t to what lie he said some seconds later Radio officials are quick t to point out that the delay elar loop is more inose a means u of editing of- of offensive offensive material than editorial tonal lie The using this thiR do- do dovice vice still retain their live Jive quality After nil all wh eliot's s 's cc few more or less 1 |