Job contents Including:Audio•Handled audio issue of Carcam/IPcam Project•Experience of analysis audio noise source and provide solution by project•Adjust audio boot flow to meet fast boot requirement•Audio device driver porting for Linux and develop unit test case experienceDisplay•Handled display issue of Carcam/IPcam Project•大尺吋屏所需頻寬分析與調校•協助客戶bring up LCD

Job contents Including:•Familiar with display interface (MIPI DSI/HDMI/Parallel RGB/sRGB/MCU/BT656/BT601/BT1120/CVBS)•Build display render framework and improve display pipeline experience•Worked to analysis and solve display related issue like noise/flicker/rolling/tearing effectAudio•Migrate Audio driver to RTOS(RTK) experience•Implement A/V sync strategy for playback applicationMisc•Introduce CI flow (daily/auto build by Jenkins)

Job contents Including:Audio•Audio device driver porting to RTOS(uOS) and design test plan•Familiar with Audio input/output interface (I2s protocol/DMIC/Analog Mic/Lineout ) and signal verification•Analysis and verify chip functional correctness (Gain/Fading/HPF(High pass filter)/Notch filter) •Coordinated with algorithm team to process feature porting (AGC/Noise Reduction) , test and feedback effect•Long-term maintain Audio/Speech codec (AAC/ADPCM/E-AC3/G.711) and profile cpu usage•Maintain and improve audio buffering control on recode /decode framework Peripheral •Peripheral driver (SPI/SARADC) porting and debug experienceHelped to verify ROM boot flow experience•boot from SD/Nand Flash/serial Flash/USB

Job contents Including:DSP平台移植Audio driver經驗協助驗證DSP指令集