Chaotic oscillations due to delay-induced instabilities are easily seen with a simple and familiar acoustic system. The measured bifurcation diagram to chaos, which is very different from that for a one-dimensional map model, is compared with numerical results. The bifurcation structure is dominated by the ratio of the response time to the delay time of the system.

• Received 16 August 1982

DOI:https://doi.org/10.1103/PhysRevLett.50.713