comparison toolboxes/MIRtoolbox1.3.2/AuditoryToolbox/FreqResp.m @ 0:e9a9cd732c1e tip

first hg version after svn

+% mag = FreqResp(filter, f, fs)
+% Find the frequency response (in dB) of a filter (1x5 vector) at
+% frequency f and sampling rate fs.
+
+% (c) 1998 Interval Research Corporation  
+
+function mag=FreqResp(filter,f,fs)
+cf = exp(i*2*pi*f/fs);
+mag = (filter(3) + filter(2)*cf + filter(1)*cf.^2) ./ ...
+	(filter(5) + filter(4)*cf + cf.^2);
+mag = 20*log10(abs(mag));