This is VFD display module only,you need to do the audio circuit part by yourself.
HLD022.ino
Source code for driving the HLD022 VFD module.
Arudino 1.0.4
#define DIN_PIN 13
#define CLK_PIN 12
#define STB_PIN 11
Please use Acrobat Reader from ADOBE to open this PDF file and save the code.zip.txt file from attach part then rename it back to code.zip,decompress it by winzip,7Zip,winrar etc.