I am using Max 5.1.8. Suddenly Audio (dac~, adc~) is not working any more, but MIDI sound and  jit. video sound are still working perfectly!

I noticed that turning ezadc~ on and off became slower although the patch is very simple, and no audio signal coming out.

Audio Tester does give any signal.

DSP is normal (like before) on (coreAudio Build-in Output) but also no signal. CPU is 0. input and output channels are in correct form.

I restarted my computer (mac) but the problem is still on.