SpHEAR/calibration/src/drc/minimal.drc

# Minimal correction settings

# Minimal prefiltering windows (250 ms at 20 Hz, 50.0 ms at 100 Hz, 5.00 ms at 1 kHz, 0.25 ms at 20 kHz)
# Strong peak limiting (5.11 dB Max)
# Minimum phase excess phase allpass recovering to reduce pre-echo
# Strong pre-echo truncation
# Minimum phase postfiltering to reduce I/O latency
# Strong ringing truncation

# Base file directory
# BCBaseDir = /usr/share/drc/

# BC = Base Configuration
BCInFile = rs.pcm
BCSampleRate = 48000
BCInFileType = F
BCImpulseCenterMode = A
BCImpulseCenter = 0
BCInitWindow = 131072
BCPreWindowLen = 1024
BCPreWindowGap = 768
BCNormFactor = 0.0
BCNormType = E

# MC = Mic compensation stage
# N=disabled, L=linear phase, M=minimum phase
MCFilterType = M
MCInterpolationType = H
MCMultExponent = 3
MCFilterLen = 65535
MCNumPoints = 0
MCPointsFile = drc/flat.txt
MCMagType = D
# MCFilterFile = rmcf.pcm
MCFilterFileType = F
MCOutWindow = 0
MCNormFactor = 0.0
MCNormType = E
MCOutFile = rmc.pcm
MCOutFileType = F

# Base configuration dip limiting stage
BCDLType = L
BCDLMinGain = 1e-6 # -120.0 dB Min, just to prevent overflow/underflow problems
BCDLStartFreq = 20
BCDLEndFreq = 23500
BCDLStart = 0.75
BCDLMultExponent = 3

# HD = Homomorphic Deconvolution
HDMultExponent = 4

HDMPNormFactor = 1.0
HDMPNormType = E
# HDMPOutFile = rmp.pcm
HDMPOutFileType = F

HDEPNormFactor = 1.0
HDEPNormType = E
# HDEPOutFile = rep.pcm
HDEPOutFileType = F

# MP = Minimum phase frequency dependent windowing
MPPrefilterType = s
MPPrefilterFctn = B
MPWindowGap = 24
MPLowerWindow = 24000 # 250 ms
MPUpperWindow = 24 # 0.25 ms
MPStartFreq = 20
MPEndFreq = 23500
MPFilterLen = 65536
MPFSharpness = 0.25
MPBandSplit = 3
MPWindowExponent = 1.0
MPHDRecover = Y
MPEPPreserve = Y
MPHDMultExponent = 3
MPPFFinalWindow = 24000
MPPFNormFactor = 0.0
MPPFNormType = E
# MPPFOutFile = rmppf.pcm
MPPFOutFileType = F

# DL = Dip limiting stage
DLType = M
DLMinGain = 0.01 # -40.0 dB Min
DLStartFreq = 20
DLEndFreq = 23500
DLStart = 0.75
DLMultExponent = 3

# EP = Excess phase frequency dependent windowing
EPPrefilterType = s
EPPrefilterFctn = B
EPWindowGap = 24
EPLowerWindow = 998 # 10.4 ms
EPUpperWindow = 24 # 0.25 ms
EPStartFreq = 20
EPEndFreq = 23500
EPFilterLen = 65536
EPFSharpness = 0.25
EPBandSplit = 3
EPWindowExponent = 1.0
EPPFFlatGain = 1.0
EPPFOGainFactor = 0.0
EPPFFlatType = M
EPPFFGMultExponent = 3
EPPFFinalWindow = 998
EPPFNormFactor = 0.0
EPPFNormType = E
# EPPFOutFile = reppf.pcm
EPPFOutFileType = F

# PC = Prefiltering completion stage
PCOutWindow = 0
PCNormFactor = 0.0
PCNormType = E
# PCOutFile = rpc.pcm
PCOutFileType = F

# IS = Inversion stage
ISType = T
ISPETType = f
ISPrefilterFctn = B
ISPELowerWindow = 499
ISPEUpperWindow = 374
ISPEStartFreq = 20
ISPEEndFreq = 23500
ISPEFilterLen = 8192
ISPEFSharpness = 0.50
ISPEBandSplit = 3
ISPEWindowExponent = 1.0
ISPEOGainFactor = 0.0
ISSMPMultExponent = 4
ISOutWindow = 0
ISNormFactor = 0.0
ISNormType = E
# ISOutFile = ris.pcm
ISOutFileType = F

# PT = Psychoacoustic target stage
PTType = M
PTReferenceWindow = 28800 # 300 ms
PTDLType = M
PTDLMinGain = 0.1 # -20.0 dB Min
PTDLStartFreq = 20
PTDLEndFreq = 23500
PTDLStart = 0.75
PTDLMultExponent = 3
PTBandWidth = -2
PTPeakDetectionStrength = 15
PTMultExponent = 0
PTFilterLen = 65536
# PTFilterFile = rptf.pcm
PTFilterFileType = F
PTNormFactor = 0.0
PTNormType = E
# PTOutFile = rpt.pcm
PTOutFileType = F
PTOutWindow = 0

# PL = Peak limiting stage
PLType = W
PLMaxGain = 1.8 # +5.11 dB Max
PLStart = 0.75
PLStartFreq = 100
PLEndFreq = 10000
PLMultExponent = 3
PLOutWindow = 0
PLNormFactor = 0.0
PLNormType = E
# PLOutFile = rpl.pcm
PLOutFileType = F

# RT = Ringing truncation stage
RTType = s
RTPrefilterFctn = B
RTWindowGap = 24
RTLowerWindow = 24000 # 250 ms
RTUpperWindow = 24 # 0.25 ms
RTStartFreq = 20
RTEndFreq = 23500
RTFilterLen = 65536
RTFSharpness = 0.25
RTBandSplit = 3
RTWindowExponent = 1.0
RTOutWindow = 24000
RTNormFactor = 0.0
RTNormType = E
# RTOutFile = rrt.pcm
RTOutFileType = F

# PS = Target respose stage
PSFilterType = T
PSInterpolationType = S
PSMultExponent = 3
PSFilterLen = 65535
PSNumPoints = 0
PSPointsFile = pa-48.0.txt
PSMagType = D
PSOutWindow = 65536
PSNormFactor = 1.0
PSNormType = E
PSOutFile = rps.pcm
PSOutFileType = F

# Minimum phase filter extraction stage
MSMultExponent = 3
MSOutWindow = 65536
MSFilterDelay = 499
MSNormFactor = 1.0
MSNormType = E
# MSOutFile = rms.pcm
MSOutFileType = F

# Test convolution stage
TCNormFactor = 0.0
TCNormType = M
TCOutFile = rtc.pcm
TCOutFileType = F