Articles - CCRMA - Stanford University

• d (“damping”) default:
Freeverb Parameters
damp = initialdamp * scaledamp = 0.5·0.4 = 0.2
• f (“room size”) default:
roomsize = initialroom * scaleroom + offsetroom
= 0.5·0.28+0.7 = 0.84
• Feedback lowpass (1−d)/(1−dz −1 ) causes
reverberation time t60(ω) to decrease with frequency
ω, which is natural
• f mainly determines reverberation time at
low-frequencies (where feedback lowpass has
negligible effect)
• At very high frequencies, t60(ω) is dominated by the
diffusion allpass filters
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