perm filename SAMO2.F4[P11,LCS] blob
sn#521801 filedate 1980-07-08 generic text, type T, neo UTF8
C SAMO2 FOR INTERACTIVE USE.
SUBROUTINE SAMO2(IDSK,N)
COMMON I(1) /ROUT/ROUT(1) /FINOUT/JPEAK,IPEAK,NBUF
1 /CONV/ICONV,INIOUT,JFLNM /IDEV/IDEV
DIMENSION IDBUF(2048),JDBUF(512),NN(512),LDBUF(512)
EQUIVALENCE (IDBUF,JDBUF),(LDBUF,IDBUF(513))
C*** IDBUF WILL STORE PACKED SAMPLES. ****
IF(INIOUT.EQ.0)GO TO 99
C NOW OPEN PROPER OUTPUT FILE
INIOUT=0
IDSK=0
CALL PUTEXT('TEST','SND')
NN(1)="525252525252
NN(2)=I(4)
C I(4)=SRATE, I(8)=NCHNS(-1), FOR NEXT, 0=12 BIT, 1=18 BIT SMPLS.
NN(3)="3000001
NN(4)=I(8)+1
NN(5)=32000
DO 299 K=6,128
299 NN(K)=0
C CALL FASTOU(NN,128)
CALL EXTOUT(NN,128)
99 J=IDSK+1
M1=1
M2=0
IDSK=IDSK+N
C COUNTS SAMPLES TO DATE
DO 1 K=J,IDSK
IS=ROUT(M1+M2)
C ****** REMOVE NEXT WHEN OTHER MODIFICATIONS HAVE BEEN MADE. ******
IS=IS*16
C *16 TO CONVERT 12 BIT AMPL RANGE TO 16 BIT RANGE.
IA=IABS(IS)
IF(IA.GT.IPEAK)IPEAK=IA
IDBUF(K)=IS
1 M2=M2+1
IF(IDSK.LT.NBUF)RETURN
C NBUF=512,MONO =1024,STEREO
M=1
J=NBUF/2
DO 44 K=1,J
NN(K)=(IDBUF(M)*"1000000).OR.(IDBUF(M+1).AND."777777)
C PACKS 2 SMPLS PER WORD.
CC NN(K)=IDBUF(M)*262144+IDBUF(M+1)
C 16*262144=4194304
44 M=M+2
CZ IF(MS(L).LT.0)MS(L)=4096+MS(L)
CZ IDBUF(KL)=MS(3)+MS(2)*4096+MS(1)*16777216
C PACKS 3 SMPLS TO A 36-BIT WORD. 4096=2**12, 16---=2**24.
C MS(1) HAS LEFT HAND 12 BITS; MS(2), MIDDLE 12 BITS; MS(3), RIGHT 12.
C NEGATIVE NUMBERS RUN FROM 4095(I.E. -1) TO 2049(I.E. -2048).
C CALL FASTOU(NN,J)
CALL EXTOUT(NN,J)
10 J=IDSK-NBUF
IF(J.LT.1)GO TO 4
DO 5 K=1,J
5 IDBUF(K)=IDBUF(NBUF+K)
4 IDSK=J
RETURN
END