# Example PVC script used to create /sflib/x soundfile >> plainpv4 << 
 # Example PVC script file >> plainpv4 << :
# a source snare drum roll is turned into a pulsating but sustained
# medium high pitched cluster
# (1) only frequencies between 600 and 1800 hz are passed:
#   FILTER_TYPE__0_bandpass__1_bandreject=0 # bandpass fileter
#   BRICKWALL_FILTER_window_low_frequency=600
#   BRICKWALL_FILTER_window_high_frequency=1800
# (2) the gain is raised by ?? to compensate for the amplitude lost in this filtering
#   gain_in_decibels=15   # in dB, int, float or FUNC
# (3) rapid changes in the original amplitude (the roll) are slowed down to
# produce a sustained sound:
#   #************ENVELOPE RESPONSE ************************
#   release_time_in_seconds=.5   # int, float or FUNC
#   attack_time_in_seconds=.75   # int, float or FUNC
# (4) the time duration is tripled, and a very high analysis frame rate is used:
#   frames_per_second=600  # raised from default 200
#   time_expansion_contraction_factor=3
#

#******************************************************
#.................... PLAINPV .........................
#******************************************************

     # ******ECMC CHANGES & ADDITIONS: ***************
#******** INPUT & OUTPUT SOUNDFILES *************
cd $SFDIR # all files will be written to your current working soundfile directory
inputsf=/sflib/perc/sdrum1.broll.wav
outputsf=$SFDIR/plainpv4.wav  # output soundfile
# ********************* #


   ##### 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)

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

#======================================================
#*** ANALYSIS PARAMETERS ******************************
FFT_length=1024 # must be power-of-2, usually 1024, 512 or 2048
      # do not set FFT_length lower than 1024 if samp. rate = 96000
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    # default 0 sets windowsize (in samples) to 2 * FFT_length if
  #  samp. rate <= 48000 or to 4 * FFT_length if samp. rate > 48000
frames_per_second=200   # generally 200, occasionally 400 or 600 when time stretching
#======================================================
#........... 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=3  # duration is tripled
     # (Adjust frames_per_second in proportion to keep a constant rate.)
#.................. DECIBELS ..........................

gain_in_decibels=15    # 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=.5 # very high    # int, float or FUNC
attack_time_in_seconds=.75 # very high     # int, float or FUNC

#............ SPECTRUM WARPSHAPE ......................
spectrum_warpshape_index=0   # int, float or FUNC 

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

FILTER_TYPE=0  # bandpass filter
   # 0 = bandpass, 1 = bandreject

BRICKWALL_FILTER_window_low_frequency=600
BRICKWALL_FILTER_window_high_frequency=1800
     # (-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)
#====================================================
# *****  TKLA CHANGES: ******* #
  SR=`/usr/local/bin/sfsr $inputsf | awk '{print $1}'`
if ( ( [ `expr "$SR" \> "48000"` == 1 ] ) &&  ( [ "$windowsize" == "0" ] ) ) ; then 
       # if SR is > 48000 & windowsize is set to 0 increase default windowsize
  windowsize=`expr $FFT_length \* 4`
fi
# Determine if input soundfile is 24 bit. If so, compile 32 bit float outputs, then 
# convert to 24 bit ints
WORDSIZE=`/usr/local/bin/sfbits "${inputsf}" | awk '{print $1}'`  
if [ "$WORDSIZE" == "24" ] ; then rm -f pvcin ; 24tofloat $inputsf pvcin ; input_file=pvcin
  if  [ "$output_data_format" != 2 ] ; then
    output_file=pvcout  # temporary floating point output soundfile for 24-bit inputs
    rm -f  pvcout;  output_data_format=2
  else  # 24 bit input but float output requested
    output_file=$outputsf ; fi
else # not 24 bit input ; 16 bit int or 32 bit float input
    input_file=$inputsf ;  output_file=$outputsf
fi
#  ****** end of TKLA changes & additions ****** #
pvroutine=plainpv 
PVFLAGS="\
\
-N$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 $output_file 
   # *****  TKLA CHANGES & ADDITIONS: ******* #
if ( ( [ "$WORDSIZE" == "24" ] ) &&  ( [ "$output_file" == "pvcout" ] ) ) ; then
      echo "Converting temporary float output file pvcout to $outputsf"
      echo " -------------------------------------------------------"
      floatto24 pvcout $outputsf 2> /dev/null  ; rm -f pvcin pvcout 
   echo " -------------------------------------------------------"
else
   echo " -------------------------------------------------------"
    echo -e -n "Output soundfile: " ;  sfinfo -s $outputsf
    if (  ( test -f "pvcin" ) ) ; then   rm -f pvcin ; fi
   echo " -------------------------------------------------------"
fi
   #  ****** end of TKLA changes & additions ****** #
# If you have created any gen function files above delete them below:

   # *****  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:

 

