FREQRESPONSE EXAMPLES ECMC PVC example file freqresponse1 # ECMC PVC example "freqresponse1" creates a frequency response # of a steady-state fragment of a soprano tone (/sflib/voice/sop1.ds4) # Frequencies are analyzed and averaged only over the .3 seconds between # times .5 and .8 of this source soundfile: # analysis_begintime=.5 # analysis_endtime=.8 # Defaults are used for all other parameters # The resulting frequency response file is used in the old ECMC # PVC example "bandamp1" #****************************************************** #*** FREQRESPONSE ANALYSIS **************** #****************************************************** # ******ECMC CHANGES & ADDITIONS: *************** #******** INPUT & OUTPUT SOUNDFILES ************* # input soundfile, can be aiff or wave format on Linux, aiff only on SGI analysis_sndfile=/sflib/voice/sop1.ds4 freqresponsefile=sop1.ds4.ss.fr inputsf=/sflib/voice/sop1.ds4 # ********************* # ##### 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 ##### #------------------------------------------------------ #******************** ANALYSIS ************************ #------------------------------------------------------ #........ BEGIN/END TIMES ............................. analysis_begintime=.5 analysis_endtime=.8 #........... ANALYSIS CHANNEL(S) ....................... analysis_channel=0 # channels are numbered from 1-maximum, 0 = all channels #...................................................... #*** ANALYSIS PARAMETERS ****************************** FFT_length=1024 analysis_frames_per_second=200 ANALYSIS_METHOD_average_0_peak_1=1 #------------------------------------------------------ #********ANALYSIS LOW/HIGH SHELF EQ ******************* ANALYSIS_LOW_SHELF_EQ_gain_in_decibels=-0 ANALYSIS_LOW_SHELF_EQ_frequency=300 ANALYSIS_HIGH_SHELF_EQ_gain_in_decibels=0 ANALYSIS_HIGH_SHELF_EQ_frequency=1000 #------------------------------------------------------ FREQRESPONSE_PRINTOUT_high_cutoff_frequency=2000 # ( 0 = off ) #==================================================== # COMMAND LINE SETUP -- OFFICE USE ONLY # (DO NOT WRITE BELOW THIS LINE) #==================================================== PVCDIR=/usr/local/soundapps/PVC PVCBIN=$PVCDIR/bin cd $SFDIR # ECMC if [ "$OSTYPE" = "irix" ] then input_file=pvcin # ECMC temporary NeXT format input soundfile /sbin/rm -f pvcin # 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=$inputsf fi # ****** end of ECMC changes & additions ****** # # ANALYSIS pvanalysisroutine=freqresponse PVFLAGS="\ \ -N$FFT_length \ -M0 \ -D$analysis_frames_per_second \ \ -b$analysis_begintime \ -e$analysis_endtime \ \ -c$ANALYSIS_METHOD_average_0_peak_1 \ \ -H$ANALYSIS_LOW_SHELF_EQ_gain_in_decibels \ -m$ANALYSIS_LOW_SHELF_EQ_frequency \ \ -X$ANALYSIS_HIGH_SHELF_EQ_gain_in_decibels \ -R$ANALYSIS_HIGH_SHELF_EQ_frequency \ \ -P$FREQRESPONSE_PRINTOUT_high_cutoff_frequency \ \ -C$analysis_channel \ " echo "\n\n$pvanalysisroutine $PVFLAGS $analysis_sndfile $freqresponsefile " $pvanalysisroutine $PVFLAGS $analysis_sndfile $freqresponsefile ; # ***** ECMC CHANGES & ADDITIONS: ******* # if [ "$OSTYPE" = "irix" ] then /sbin/rm -f pvcin fi echo 'Listing of frequency response file $freqresfile :' ls -l $freqresponsefile # ****** end of ECMC changes & additions ****** # # If you have created any gen function files above delete them below: