1. 對於按鍵輸入，請加入聲音輸出電路，分別代表sw1之按鍵回授之音效訊息。每次sw1按鍵壓下時，就送出0.1秒之1KHz聲音。-1. For the key input, please join the voice output circuit, representing the keys sw1 feedback of the audio message. Every time when sw1 button depressed, they sent 0.1 seconds of sound

用verilog编写的点阵游戏，具有蜂鸣器音效，涉及并转串芯片74HC595，1602显示等。-Written in verilog Dot Game, with a buzzer sound, involving parallel and serial chip 74HC595, 1602 display.

WM8731芯片的音效处理verilog代码， WM8731芯片是音频ADC\DAC芯片-WM8731 audio processing chip verilog code, WM8731 chip audio ADC \ DAC chip