Acknowledgement: For users' convenience, the following Matlab based toolkits are included in SignalGraph without modification:
voicebox: http://www.ee.ic.ac.uk/hp/staff/dmb/voicebox/voicebox.html
minFunc: https://www.cs.ubc.ca/~schmidtm/Software/minFunc.html
Image method for room impulse response simulation: http://www.eric-lehmann.com