哼唱檢索用於嵌入式系統 張智星 多媒體資訊檢索實驗室 台灣大學 資訊工程系

哼唱檢索的玩具應用 Block diagram 5 sec acoustic input MicrophoneA/D converter Micro-controller Internal/external memory Processing unit Database (External memory) Music output ( via speaker ) Constraint : Sing from the beginning

Microcontroller ： 8052

實作細節 zSpecs y3.6 MHz oscillator, PLL output 36MHz (<2MIPS) yAvg. response time: 0.12 sec/song for 5-sec input zData/code size yCode memory: 2.75 KB yRAM: 2.5 KB external + 512B internal data memory yROM: 256B/song

Microcontroller ： Sunplus SPCE061A

Sunplus SPCE061 實作細節 zSpecs ySystem clock: 24 MHz yCPU clock: 24, 12, 6 MHz yAvg. response time: 0.12 sec/song for 5-sec input (when CPU clock = 6 MHz.) zData/code size yCode size : 1.14 K word ( in flash memory) ySong size: 256 word/song (in flash memory) yRAM: 1 K word zRecognition rate y90% based on 250 clips from 10 subjects

玩具應用 zManley Toys, USA yhttp:// html (Please check “Sing Along”) html yhttp:// /toys/B000096QZW/glance/ref%3Dcm%5Frv%5Fthx%5F view/ http:// /toys/B000096QZW/glance/ref%3Dcm%5Frv%5Fthx%5F view/ zVideoVideo