{"type":"rich","version":"1.0","provider_name":"Transistor","provider_url":"https://transistor.fm","author_name":"Programming Tech Brief By HackerNoon","title":"How I Turned QR-Coded Chips Into a Multi-Track Musical Instrument on iOS Without Core ML","html":"<iframe width=\"100%\" height=\"180\" frameborder=\"no\" scrolling=\"no\" seamless src=\"https://share.transistor.fm/e/0a51826c\"></iframe>","width":"100%","height":180,"duration":1885,"description":"\n        This story was originally published on HackerNoon at: https://hackernoon.com/how-i-turned-qr-coded-chips-into-a-multi-track-musical-instrument-on-ios-without-core-ml.\nHow I built an iOS app that turns QR-coded chips into a 24-track musical instrument using AVFoundation, with no Core ML and zero dependencies.\nCheck more stories related to programming at: https://hackernoon.com/c/programming.\n            You can also check exclusive content about #ios-app-development, #open-source, #edtech, #systems-engineering, #computer-vision, #audio-processing, #software-architecture, #hackernoon-top-story,  and more.\nThis story was written by: @vitaliy69. Learn more about this writer by checking @vitaliy69's about page,\n            and for more stories, please visit hackernoon.com.\nMusicWaveBoard is an iOS app that turns physical QR-coded chips into a multi-track musical instrument. The front camera scans chips through a transparent board, a 24-track AVAudioEngine plays corresponding loops, and a time-windowed detection system keeps the music glitch-free. This build story covers the rotating-rectangle QR scanning workaround, gapless audio looping, a Thread.sleep fade hack, voice control with keyword matching, and what I'd do differently. It ends with where this mechanic is going next: an AI-generated audio engine where every chip gets its own model-created sound, and an early-stage venture in music education for children.","thumbnail_url":"https://img.transistorcdn.com/KhCapPSRkLGL2Xw8888yuChkNRWthaKapLYTvNdu4W4/rs:fill:0:0:1/w:400/h:400/q:60/mb:500000/aHR0cHM6Ly9pbWct/dXBsb2FkLXByb2R1/Y3Rpb24udHJhbnNp/c3Rvci5mbS9zaG93/LzQxMTY2LzE2ODM1/ODIzMzAtYXJ0d29y/ay5qcGc.webp","thumbnail_width":300,"thumbnail_height":300}