DRC generates digital room correction FIR filters to be used within HiFi systems in conjunction with real time convolution engines like BruteFIR. Release Notes: A new computation of the RMS value based on a logarithmic frequency weighting of the magnitude response has been introduced. This new method allows for better handling of the filter magnitude response peak limiting. A bug in the estimation of the band limited RMS value has been also corrected. Some other procedures have been refined in order to provide improved accuracy. The glsweep and lsconv tools have been reworked to provide correct reference levels, thus allowing for SPL calibrated measurements.