Explore various common audio modules for adding music or sound effects to electronics projects in this comprehensive 38-minute video. Learn about devices like the DF Player Mini, Catalex Serial MP3 Player, and various DY models, comparing their features and applications. Discover how to properly wire these modules to minimize noise and prevent playback issues. Gain insights on preparing and storing audio data using tools like Audacity and DriveSort. Compare the ease of use and compatibility with different microprocessors, and understand the audio latency differences between flash memory and SD card devices. Follow along as the video covers topics such as clones and counterfeit chips, file naming importance, and techniques for correcting file indexes. Perfect for enthusiasts working on Halloween props, escape rooms, model railways, or any interactive electronics project requiring audio integration.