Desay SV

Audio驱动开发工程师

Desay SV  •  Onsite  •  17 hours ago
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Job Description

Audio驱动开发工程师
深圳
全职
职位描述
1、负责高通8155、8295、8775等座舱芯片音频底层开发、BSP 适配、新项目 bring-up;
2、基于 Linux/QNX Android ASoC/ALSA 架构完成 Machine/Platform/Codec 三层驱动开发、dts 音频通路配置、mixer_paths 路由配置;
3、负责 I2S/TDM/PDM/SLIMBus/SoundWire 时序、时钟、DMA 通路调试,解决底噪、POP 音、杂音、音频断流、同步异常、丢包、通路切换故障;完成外部 Codec、数字功放、A2B 芯片硬件联调;
4、基于 tinyalsa/libasound 完成 Audio HAL 适配,打通 AudioFlinger/QNX ASF 服务与内核驱动链路,管理 FE/BE 音频流、音频 Patch 路由、多音源优先级仲裁(导航 / 通话 / 多媒体 / 语音助手);
5、处理量产高频音频问题:底噪、爆破音、通话回声、蓝牙 aptX/LE Audio 兼容性、多声道同步、低功耗音频待机异常、内存溢出、DMA XRUN;输出问题根因、优化方案与测试验证报告。
职位要求
1、熟悉 C 语言,熟悉 Linux 内核驱动开发、中断 / DMA / 时钟 / PLL、设备树 DTS、proc/sys 音频调试节点;
2、掌握 I2C/SPI/I2S/TDM/PDM/SLIMBus 协议时序;
3、5年以上车载高通音频驱动开发经验,完整参与过 SA8155/SA8295 至少 1 个量产项目,熟悉 SA8775 音频架构优先;
4、熟悉 Linux/QNX 内核 ALSA/ASoC/AudioReach 音频框架,熟练编写 Machine/Platform/Codec 驱动、DAPM 电源管理、dts 音频配置;
5、熟练使用 QACT/QDART/QXDM、tinyplay/tinycap/tinymix、i2cdump、示波器 / 逻辑分析仪调试音频时序与寄存器;
6、独立解决 POP 音、底噪、音频卡顿、XRUN、DSP 死机、通路切换失效、时钟失步、功耗超标等各类底层音频故障,能分析 ADSP dump 定位崩溃;
7、能看懂英文芯片手册、高通 Audio 技术文档,具备独立查阅原厂资料解决问题能力;
8、加分项:熟悉 A2B 总线、车载数字功放、座舱 3D 音效、音频安全隔离。
投递
Desay SV

About Desay SV

Desay SV, one of the leading mobility technology companies, is committed to realizing a smarter mobility for all. Desay SV’s core business focuses on the efficient integration of three major areas of smart cabin, combined driver assistance, and smart service. We continuously develop highly integrated leading hardware and software algorithms to provide global customers with safe, delightful and sustainable mobility solutions and services.

Relying on 39 years of deep accumulation in the design, development, and production processes, Desay SV has continuously expanded its comprehensive strength in R&D innovation, customer service, and safety verification, and built a technical link from smart travel to smart transportation, actively responding to the challenges of the industry transformation. We meet the diverse needs of customers for different product portfolios and business development models, provide drivers and passengers with an excellent travel experience, and bring more room for imagination to future mobility.

Focusing on the sustainable development goal of "safety and reliability”, “win-win growth”, and “green environmental protection", Desay SV actively participates in the global carbon neutral strategy and integrates sustainable development into all aspects of business operations. While giving back to society, respecting every employee of the company, and creating a diverse working environment and development platform for employees, we encourage equality, openness, and coordinated development among all our branches around the world. Desay SV people adhere to the same mission and work together for the same goal—to create a safe, delightful and sustainable mobility.

Industry
Automotive & Mobility
Company Size
501-1,000 employees
Headquarters
Huizhou, CN
Year Founded
1986
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