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Open nowPosted 70 days ago

Audio驱动开发工程师（深圳）

yesv-desaysv/index444 open roles

Where
Shenzhen, Guangdong, Chinese Mainland
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Your applicationOpen nowAudio驱动开发工程师（深圳）yesv-desaysv/index · Shenzhen, Guangdong, Chinese Mainland

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  3. 25 readersRecruiter, hiring manager, skeptic. Round after round.

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The clock on this job

Early applications get read.

12.3% of postings close within 7 days. Measured by our own scanner across the market. yesv-desaysv/index postings stay open a median of 1 days.

Share of postings closed within
  1. 2.1%1 day
  2. 4.5%3 days
  3. 12.3%7 days
  4. 19.3%14 days
  5. 35.6%30 days
  6. 57.8%60 days
This job: posted 70 days ago

yesv-desaysv/index median: 1 days open

The posting

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。

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。

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