How to replace only \n( line seperator ) not Data \n?

Unix File is pipe delimited with 17 fields. We may get extra pipes in data also.
We may get \n char (1 or more \n in one field or multi fileds) in data in any field.
Need to replace \n true ( line separator) with 'space and bell char space' chars (' \a ') Not data \n.

Input:
455000|TTTT|97233|UUUUUU REP||Juli||EEEE||P.O. Box | 550 MMMMMMMMMM JJ 55555|||||||
333333|DDD|97233|UUUUUU REP||AMAR||AJAY||P.O. Box 69 MMMMMMMMMM | JJ 6666
JJJ BBBB P.O. Box 4 MMMMMMMMMM JJ 44444
delmer Speidel P.O. Box 242 MMMMMMMMMM JJ 99456, See File For More.....|||||||
888888|Director|97382|UUUUUU REP||ANTHONY|K|JOSHI||1144 JNM ROAD LLLLLLLLLLLLL | JJ 82513, Laurie Ideker, Leon Sanderson
coralie Emmons P.O. Box 34 LLLLLLLLLLLLL JJ 82513
wanda Knowles P.O. Box 958 LLLLLLLLLLLLL JJ 82513, See File For More...|||||||
999999|President|97692|UUUUUU REP||See||File|||||||||

Expected Output:
455000|TTTT|97233|UUUUUU REP||Juli||EEEE||P.O. Box | 550 MMMMMMMMMM JJ 55555||||||| \a 333333|DDD|97233|UUUUUU REP||AMAR||AJAY||P.O. Box 69 MMMMMMMMMM | JJ 6666
JJJ BBBB P.O. Box 4 MMMMMMMMMM JJ 44444
delmer Speidel P.O. Box 242 MMMMMMMMMM JJ 99456, See File For More.....||||||| \a 888888|Director|97382|UUUUUU REP||ANTHONY|K|JOSHI||1144 JNM ROAD LLLLLLLLLLLLL | JJ 82513, Laurie Ideker, Leon Sanderson
coralie Emmons P.O. Box 34 LLLLLLLLLLLLL JJ 82513
wanda Knowles P.O. Box 958 LLLLLLLLLLLLL JJ 82513, See File For More...||||||| \a 999999|President|97692|UUUUUU REP||See||File|||||||||

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