samer@34: % formant_synth - synthesise audio from format-based description
samer@34: function Y=formant_synth(block_size,q,amp,f0,fx)
samer@34: Y = amp*dynfilter( ...
samer@34: 		map(@f2tf, fx), ...
samer@34: 		blockdata(blit,block_size,0,0.45,f0) ...
samer@34: 	);
samer@34: 
samer@34: 	function tf=f2tf(f)
samer@34: 		zf=zeros(size(f));
samer@34: 		[tf{1},tf{2}]=zp2tf([zf;zf],fq2poles(0.5*f,q),min(f));
samer@34: 	end
samer@34: end
samer@34: