def __init__( self ):
# Set up the UI
super( LoudnessGui, self ).__init__( None )
self.audioRunning = False
self.setGeometry( 0, 0, 800, 600 )
self.layout = QtGui.QGridLayout( self )
self.startButton = QtGui.QPushButton( "Start Audio" ) # , self.centralWidget )
#self.startButton.setMinimumSize( 200, 60 )
self.stopButton = QtGui.QPushButton( "Stop Audio" ) # , self.centralWidget )
#self.stopButton.setMinimumSize( 200, 60 )
self.layout.addWidget( self.startButton, 0, 0 ) # , QtCore.Qt.AlignHCenter | QtCore.Qt.AlignVCenter )
self.layout.addWidget( self.stopButton, 0, 1 ) # , QtCore.Qt.AlignHCenter | QtCore.Qt.AlignVCenter )
self.loudnessLabel = QtGui.QLabel( '--- dB' ) # , self.centralWidget )
#self.loudnessLabel.setMinimumSize( 200, 60 )
self.layout.addWidget( self.loudnessLabel, 0, 2 ) # , QtCore.Qt.AlignRight | QtCore.Qt.AlignVCenter )
self.startButton.clicked.connect( self.startAudio )
self.stopButton.clicked.connect( self.stopAudio )
self.plotWidget = pg.PlotWidget()
self.plotWidget.setRange( xRange = (0,numPlotPoints-1), yRange = (-130.0,6.0))
self.layout.addWidget( self.plotWidget, 1, 0, 1, 4 )
self.loudnessPlot = pg.PlotCurveItem()
self.plotWidget.addItem( self.loudnessPlot )
self.loudnessHist = -120.0 * np.ones( numPlotPoints, dtype=np.float32 )
self.loudnessPlot.setData( self.loudnessHist )
# %% Setup the DSP part
self.context = visr.SignalFlowContext( period = blockSize,
samplingFrequency = samplingFrequency )
self.meter = LoudnessMeter( self.context, 'meter', None, numChannels,
measurePeriod = 0.4, audioOut = True )
audioOptions = ai.AudioInterface.Configuration( numChannels,
numChannels,
samplingFrequency,
blockSize )
self.audioInterface = ai.AudioInterfaceFactory.create( audioInterfaceName,
audioOptions,
audioBackendOptions )
self.flow = rrl.AudioSignalFlow( self.meter )
self.loudnessPort = self.flow.parameterSendPort( 'loudnessOut' )
self.readTimer = QtCore.QTimer( self )
self.readTimer.timeout.connect( self.getMeterValues )
self.readTimer.setSingleShot( False )
self.readTimer.setInterval( 100 ) # ms
if not os.path.exists(sofaDir):
os.makedirs(sofaDir)
urlretrieve('http://sofacoustics.org/data/database/thk/HRIR_L2354.sofa',
sofaFile)
# If the ITDs are to be applied separately, we create a version of the SOFA file
# that conains the delays separately in the Data.Delay dataset.
# Note: This mechanism fails if the original SOFA file already cantains the delay data
# (it would be discarded).
if useDynamicITD:
sofaFileTD = os.path.splitext(sofaFile)[0] + '_modelled_onsets.sofa'
if not os.path.exists(sofaFileTD):
sofaExtractDelay(sofaFile, sofaFileTD)
sofaFile = sofaFileTD
context = visr.SignalFlowContext(period=blockSize, samplingFrequency=fs)
renderer = DynamicHrirRenderer(
context,
"DynamicHrirRenderer",
None,
numberOfObjects=numBinauralObjects,
sofaFile=sofaFile,
headTracking=useTracking,
dynamicITD=useDynamicITD,
dynamicILD=useDynamicILD,
hrirInterpolation=useHRIRinterpolation,
filterCrossfading=useCrossfading,
interpolatingConvolver=useInterpolatingConvolver)
result, messages = rrl.checkConnectionIntegrity(renderer)
# -*- coding: utf-8 -*-
"""
Created on Sat Feb 24 07:25:02 2018
@author: andi
"""
import visr
import rcl
import numpy as np
ctxt = visr.SignalFlowContext( 64, 48000 )
numInputs = 3
numOutputs = 7
gains = np.array( np.random.rand( numOutputs, numInputs ), dtype=np.float32 )
mtx = rcl.GainMatrix( ctxt, "Matrix", None, numberOfInputs=numInputs, numberOfOutputs=numOutputs,
interpolationSteps=0, initialGains=gains )
dv = rcl.DelayVector( ctxt, "DL", None, numberOfChannels=2, maxDelay=1.0, initialDelay = [0.0, 0.1], initialGain=[1.0,0.5])
iDelay = np.asarray([0.0, 0.1], dtype=np.float64)
iGain=np.asarray([1.0,0.5])
dv = rcl.DelayVector( ctxt, "DL", None, numberOfChannels=2, maxDelay=1.0, initialDelay = iDelay, initialGain=iGain )
z = r * np.sin(el)
return x, y, z
hfLfPanning = False
blockSize = 128
samplingFrequency = 48000
azGrid = np.arange(-45, 45, 1) * np.pi / 180.0
gridSize = len(azGrid)
numSamples = 1024
numObjectChannels = 1
ctxt = visr.SignalFlowContext(blockSize, samplingFrequency)
# lc = panning.LoudspeakerArray( '/home/andi/dev/visr/config/isvr/audiolab_39speakers_1subwoofer.xml' )
# lc = panning.LoudspeakerArray( '/home/andi/dev/visr/config/generic/bs2051-9+10+3_linear.xml' )
# lc = panning.LoudspeakerArray( 'c:/local/visr/config/isvr/audiolab_39speakers_1subwoofer.xml' )
# lc = panning.LoudspeakerArray( 'c:/local/visr/config/generic/bs2051-9+10+3.xml' )
lc = panning.LoudspeakerArray(
'c:/local/s3a_git/aes2018_dualband_panning/code/data/bs2051-4+5+0.xml')
numSpeakers = lc.numberOfRegularLoudspeakers
if False:
calc = PythonPanner(ctxt,
'calc',
None,
numberOfObjects=numObjectChannels,
from realtime_multi_renderer_trajectory import RealTimeMultiRendererTrajectory
import visr
#import panning
import rrl
import audiointerfaces as ai
import os.path
import sys
import time
import numpy as np
fs = 48000
blockSize = 1024
context = visr.SignalFlowContext(blockSize, fs)
# configBasePath = '/usr/share/visr/config/'
configBasePath = '/home/andi/dev/visr/config/'
renderConfigNames = [
'bbc-listening-room-full.xml', 'bs2051-0+2+0.xml', 'bs2051-0+5+0.xml',
'bs2051-2+5+0.xml', 'bs2051-4+5+0.xml', 'bs2051-4+9+0.xml',
'bs2051-9+10+3.xml'
]
numberOfOutputs = 34 # Maximum channel number
# Create filtes with full paths
configPaths = [
os.path.join(configBasePath, 'bbc', cfg) for cfg in renderConfigNames
Example script to run a realtime VBAP renderer from Python. """ import visr import panning import rrl import audiointerfaces as ai from vbap_renderer import RealtimeVbapRenderer bs = 512 # Define the period / buffer size fs = 48000 # Define the sampling rate in Hz # Define a SignalFlowContext object that is used to pass the sampling frequency # and period parameter to a component's constructor. context = visr.SignalFlowContext(bs, fs) # Define a loudspeaker configuration file incl. VBAP triangulation # Stereo runs on most (including internal) soundcards. configFile = '../data/stereo.xml' # Multichannel Loudspeaker configurations as defined by ITU-R BS.2051. # Note that the speaker channels are consectutive, i.e., they differ from # the ITU standard as they omit the channels for the subwoofers (channel 4 and 10 # for 9+10+3) # Note: The sudio interface used must support the number of output channels. #configFile = '../data/bs2051-0+5+0.xml' #configFile = '../data/bs2051-4+5+0.xml' #configFile = '../data/bs2051-9+10+3.xml' # Number of objects rendered.
from vbap_l2_renderer import VbapL2Renderer
from vbap_renderer import VbapRenderer
from helper.baseTrigFunctions import sph2cart
bs = 128
samplingFrequency = 48000
numBlocks = 128
numObjects = 1
signalLength = bs * numBlocks
t = 1.0 / samplingFrequency * np.arange(0, signalLength)
ctxt = visr.SignalFlowContext(bs, samplingFrequency)
lc = panning.LoudspeakerArray('../data/bs2051-4+5+0.xml')
numOutputChannels = lc.numberOfRegularLoudspeakers
rendererVbap = VbapRenderer(ctxt, 'renderer', None, numObjects, lspConfig=lc)
rendererL2 = VbapL2Renderer(ctxt, 'renderer', None, numObjects, lspArray=lc)
flowVbap = rrl.AudioSignalFlow(rendererVbap)
flow = rrl.AudioSignalFlow(rendererL2)
paramInput = flow.parameterReceivePort('objects')
paramInputVbap = flowVbap.parameterReceivePort('objects')
