播放音频，声音断断续续的，看终端输出，报underrun，查资料，可能是数据写入缓存区不够快，不知道怎么解决，有人帮忙分析下吗
aplay -Dhw:0,0 -f dat -r 48000 opt/test.wav
Playing WAVE 'opt/test.wav' : Signed 16 bit Little Endian, Rate 44100 Hz, Stereo
underrun!!! (at least 308.075 ms long)
underrun!!! (at least 94.055 ms long)
underrun!!! (at least 309.540 ms long)
underrun!!! (at least 155.182 ms long)
underrun!!! (at least 86.731 ms long)
underrun!!! (at least 45.074 ms long)
