Modifies style of scroll bar, and adds option of audiobuffer length.
修改滚动条样式，增加音频缓冲选项。
2
Why audiobuffer needs only one stage while video buffer needs two stages for amplification?
为何音频电路仅需要单级放大电路，而影像电路必须两级反向。
3
Increase the number of audio buffers and the size of each buffer to ameliorate this problem with the command fluidsynth Hammered_Instruments.sf2 -c10000 -z10000.
采用命令fluidsynth Hammered _ Instruments . sf 2 - c10000 - z 10000增加音频缓冲区的数目和每个缓冲区的大小，以便缓解此问题。