I have new trouble about setting with jack and alsa.Great! aplay doesn't work with JACK. You need a player that supports JACK like Aqualung.
I can hear sound with aqualung but sound is drop and noisy also cpu processing get heavy. Using onboard sound card more better than usb sound card (E-MU 0202) its weird for Me, I am sure there is something wrong. How to making jackd2 setting properly.
1) this my setting , please correct if I wrong
2) why if I using alsa not using jackd2 I cant not hear sound for example I am try just check output sound directly. There is no error output but I can hearjackd -P70 -p16 -t2000 -dalsa -dhw:USB -p128 -n3 -r48000 -s &
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aplay voice.wav
Playing WAVE 'voice.wav' : Signed 16 bit Little Endian, Rate 44100 Hz, Mono
Regard
pukulsesuatu