ECMC PVC example file plainpv3-2
# Example PVC script used to create /sflib/x soundfile >> plainpv3-2 <<
# ECMC pvc example plainpv3-2: warp index
# This script produced the third note in example "plainpv3"
# All default analysis and resyntheiss values are used except:
# spectrum_warpshape_index=-20 # int, float or FUNC
# and
# gain_in_decibels=-20 # in dB, int, float or FUNC
# The very high negative warp index value of -20 causes weaker intensity
# frequency components within the logdrum tone to be boosted,
# so that the resynthesis timbre consists mostly of the "noise" rather than of
# the pitched frequency components of the source logdrum sound.
# The increased ampltude of many of the frequencies within
# the source sound would result in clipping. TO avoid this, we
# reduced the output gain by 20 dB.
#******************************************************
#.................... PLAINPV .........................
#******************************************************

     # ******ECMC CHANGES & ADDITIONS: ***************
#******** INPUT & OUTPUT SOUNDFILES *************
   # input soundfile: can be aiff or wave on Linux, aiff only on SGI
inputsf=/sflib/africa/logdrum1.c3
outputsf=$SFDIR/plainpv3-2  # output soundfile
outputformat=AIFF  # for Linux only : specify AIFF or WAVE output format
# ********************* #


   ##### Cmusic function file generator tempates #####
#   gen0  normalizes function files previously created with other gen routines
# gen0 -Llength  max < inputfuncfile > outputfuncfile
#   gen1 creates linear {straight line} segments, like Csound gen 7
# gen1 -Llength t1 v1 ... tN vN
#   gen2 generates harmonic waveforms from sine {a} & cosine {b} amps
# gen2 -Llength [-o (default) or -c] a1 ... aN b0 ... bM N
#  gen3 generates amp values & linear connections at equally spaced time points
# gen3 -Llength v1 v2 ... vN
#   gen4 generates exponenetial segments; "a" values determine shape &
#  depth of curve: 0 = linear, neg. = exponential, pos. = inverse expo.
# gen4 -Llength t1 v1 a1 ... tN vN
#  gen5 is like Csound gen 9 : harmonic1/amp/phase harmonic2/amp/phase
# gen5 -Llength h1 a1 p1 ... hN aN pN
#     gen6 generates a table of random numbers between +1 and -1
# gen6 -Llength
#    cspline: smooth curve {cubic spline} interpolator
# cspline len_flag [flags] x0 y0 x1 y1 ... xN yN
#   genraw reads in a previously created function file
# genraw -LN filename    (where N is the length of the output function.)
# For a usage summary of "reshape" type  "reshape"  with no arguments.
   ##### End of gen routine function generator tempates #####



output_data_format=1
   #  0=  Same as input file, 1 = integers 2 = rescaled floats 

#******** BEGIN/END TIMES *****************************
   # beginning and end times within input soundfile for analysis/resynthesis
begintime=0    # time in input soundfile to begin analysis/resynthesis
endtime=0      # (-1 or 0 end time defaults to end of file)

#======================================================
#*** ANALYSIS PARAMETERS ******************************
FFT_length=1024  # must be power-of-2, usually 1024, 512 or 2048
window_type=2
    # window type: 0 = Hamming,1 = rectangular, 2 = Blackman (DEFAULT),
    #  3 = Bartlett triangular, 4-12 = Kaiser windows for alpha = 4-12
    # generally recommended: 2 or 8
windowsize=0
        # 0 sets windowsize to 2 * FFT (or larger)
frames_per_second=200   # generally 200, occasionally 400 or 600 when time stretching

#======================================================
#*** RESYNTHESIS PARAMETERS ***************************

#........... OUTPUT CHANNEL(S) .......................
output_channel=0
   # channels are numbered from 1 to the maximum; 0 = all channels

#.............OSCIL THRESHOLD ........................
oscillator_resynthesis_threshold_in_dB=-80
     #( Usually -60 to -80 unless dropouts become audible. )

#******** RESYNTHESIS  MODIFICATIONS *********************

#.................. DURATION ..............................

time_expansion_contraction_factor=1
     # (Adjust frames_per_second in proportion to keep a constant rate.)
#.................. DECIBELS ..........................

gain_in_decibels=-20    # in dB, int, float or FUNC

#.................. PITCH .............................

frequency_shift_in_Hz=-0  # detune partials, in herz; int, float or FUNC 
pitch_transposition_in_semitones=0   # int, float or FUNC

#............ AMPLITUDE RESPONSE ......................

release_time_in_seconds=0   # int, float or FUNC
attack_time_in_seconds=0    # int, float or FUNC

#............ SPECTRUM WARPSHAPE ......................
spectrum_warpshape_index=-20   # int, float or FUNC 

#............ BRICKWALL FILTER ........................

FILTER_TYPE=0
   # 0 = bandpass, 1 = bandreject

BRICKWALL_FILTER_window_low_frequency=-1
BRICKWALL_FILTER_window_high_frequency=-1
     # (-1 selects respective lowest or highest frequency)

#======================================================
#*************** LOW/HIGH SHELF EQ *********************
LOW_SHELF_EQ_gain_in_decibels=0
LOW_SHELF_EQ_frequency=200

HIGH_SHELF_EQ_gain_in_decibels=0
HIGH_SHELF_EQ_frequency=2000
#======================================================
#........... RESCALE for floating point only ......
rescale_level_in_decibels=0
   # set to 1 to rescale to peak of input file; do not do this if input amplitude
   # is low
#********** AMPLITUDE STATISTICS ********************** 
print_amplitude_statistics_0_no__1_yes=1
amplitude_statistics_time_interval=.25


#====================================================
# COMMAND LINE SETUP -- OFFICE USE ONLY
#   (DO NOT WRITE BELOW THIS LINE EXCEPT TO DELETE FUNCTION FILES AT VERY END)
#====================================================
# *****  ECMC CHANGES: ******* #
PVCDIR=/usr/local/soundapps/PVC
PVCBIN=$PVCDIR/bin
pvroutine=$PVCBIN/plainpv  # ECMC
cd $SFDIR  # ECMC

if  [ "$OSTYPE" = "irix" ]
then
   input_file=pvcin  # ECMC temporary NeXT format input soundfile
   output_file=pvcout  # ECMC temporary NeXT format output soundfile
   /sbin/rm -f pvcin pvcout
   #  Create temporary NeXT format input soundfile "pvcin:" ECMC
   /usr/local/bin/sox -t aiff $inputsf -t au pvcin # ECMC
elif [ `echo "$OSTYPE" | grep linux`  ]
 then
  input_file=$inputsf
  output_file=$outputsf
fi
#  ****** end of ECMC changes & additions ****** #
pvroutine=plainpv 
PVFLAGS="\
\
-N$FFT_length \
-M$windowsize \
-w$window_type \
-D$frames_per_second \
-I$time_expansion_contraction_factor \
\
-a$frequency_shift_in_Hz \
-P$pitch_transposition_in_semitones \
-A$gain_in_decibels \
\
-C$output_channel \
-t$oscillator_resynthesis_threshold_in_dB \
\
-b$begintime \
-e$endtime \
\
-H$LOW_SHELF_EQ_gain_in_decibels \
-m$LOW_SHELF_EQ_frequency \
\
-X$HIGH_SHELF_EQ_gain_in_decibels \
-R$HIGH_SHELF_EQ_frequency \
\
-L$release_time_in_seconds \
-l$attack_time_in_seconds \
\
-W$spectrum_warpshape_index \
\
-T$FILTER_TYPE \
-f$BRICKWALL_FILTER_window_low_frequency \
-F$BRICKWALL_FILTER_window_high_frequency \
\
-_$output_data_format \
-=$rescale_level_in_decibels \
\
\
-p$print_amplitude_statistics_0_no__1_yes \
-i$amplitude_statistics_time_interval \
"
echo "\n\n$pvroutine $PVFLAGS $input_file $output_file "
$pvroutine  $PVFLAGS $input_file $output_file 
   # *****  ECMC CHANGES & ADDITIONS: ******* #
if  [ "$OSTYPE" = "irix" ]
then
   echo 'Converting temporary NeXT format output soundfile to aiff format:"'
   /usr/local/bin/sox -t au pvcout -t aiff  $outputsf # ECMC
   /sbin/rm -f pvcin pvcout   # ECMC
   echo "Header information for output soundfile >> $outputsf << :"
   /usr/sbin/sfinfo -s $outputsf # ECMC
elif [ `echo "$OSTYPE" | grep linux`  ]
then
   if  [ "$outputformat" = "AIFF" ]
     then
            echo "   Converting output soundfile $output_file to AIFF format ..."
            /usr/local/soundapps/PVC/bin/wav2aiff $output_file
   fi
   echo "Header information for output soundfile >> $outputsf << :"
   /usr/local/bin/sfinfo -s $outputsf
fi
   #  ****** end of ECMC changes & additions ****** #

# If you have created any gen function files above delete them below: