音频工程师Audio Codec Engineer
敬达数码科技(上海)有限公司
- 公司规模:50-150人
- 公司性质:外资(欧美)
- 公司行业:计算机软件
职位信息
- 发布日期:2020-10-14
- 工作地点:上海
- 招聘人数:1人
- 工作经验:3-4年经验
- 学历要求:本科
- 语言要求:英语良好 普通话精通
- 职位月薪:1.5-2.5万/月
- 职位类别:软件工程师 电声/音响工程师/技术员
职位描述
职位职责:
1.对音频和语音编解码器(AAC+, AMR-WB+, BSAC, MPEG1/MPEG2, WMA, AMR, G.723.1, QCELP)以及音效模块的开发、移植;
2.对核心模块进行算法优化及汇编优化(Neon/ARM9/ARM11);
3.这些编解码器和音效模块将应用于媒体播放器,跨平台跨系统(Windows/Linux)移动数字电视等应用;
4.能够与客户进行有效沟通,提供切实的解决方案及详实的分析报告。
职位要求:
1.计算机专业/信号处理专业本科及以上学历;
2.3年C++/C语言使用经验;
3.3年针对DSP,ARM,NEON,SSE/WMMX,x86架构的汇编优化经验;
4.熟练掌握在Windows和Linux下开发嵌入式应用的方法;
5.熟悉AAC+, AMR-WB+, BSAC, MPEG1/MPEG2 audio, WMA, AMR, G.723.1, QCELP等编解码器的算法;
6.熟悉数字信号处理的基本原理,如时频变换,心理声学模型,掩蔽特性等;
7.英语口语熟练;
8.能积极主动,团队意识强,具有高度责任心,能够承受较强的工作压力。
Job Description:
At Cidana, you will be responsible for developing, porting and optimizing audio and speech codec components (AAC+, AMR-WB+, BSAC, MPEG1/MPEG2, WMA, AMR, G.723.1, QCELP) used in Cidana's multimedia player, streaming player, and mobile DTV applications across all CPU and OS platforms. Support for NEON/ARM11/9 and Windows/Linux is required. Initially, your focus will be on the decoding component, but later you will be developing the corresponding encoding component as well. Part of your responsibilities will be to interact and respond to our customer's requests and provide periodic technical reports. Interaction with other members of the audio codec group, as well as Cidana's other development groups (video codec group, systems/applications groups) is extremely important and expected. You will be reporting to the audio codec manager.
Requirements:
1. BS/MS in computer engineering/computer science/electrical engineering
2. 3+ years of experience in C++/C and object oriented programming
3. 3+ years of experience in DSP, ARM, NEON, SSE/WMMX, x86 assembly
4. Working knowledge of Windows, Linux, embedded platform development
5. Familiarity with AAC+, AMR-WB+, BSAC, MPEG1/MPEG2 audio, WMA, AMR, G.723.1 or QCELP decoder/encoder algorithms
6. Familiarity with pitch-period analysis and recovery, frequency conversion, audio synthesis, psychoacoustic masking and distortion
7. Good English communication skills
8. Good teamwork skills
1.对音频和语音编解码器(AAC+, AMR-WB+, BSAC, MPEG1/MPEG2, WMA, AMR, G.723.1, QCELP)以及音效模块的开发、移植;
2.对核心模块进行算法优化及汇编优化(Neon/ARM9/ARM11);
3.这些编解码器和音效模块将应用于媒体播放器,跨平台跨系统(Windows/Linux)移动数字电视等应用;
4.能够与客户进行有效沟通,提供切实的解决方案及详实的分析报告。
职位要求:
1.计算机专业/信号处理专业本科及以上学历;
2.3年C++/C语言使用经验;
3.3年针对DSP,ARM,NEON,SSE/WMMX,x86架构的汇编优化经验;
4.熟练掌握在Windows和Linux下开发嵌入式应用的方法;
5.熟悉AAC+, AMR-WB+, BSAC, MPEG1/MPEG2 audio, WMA, AMR, G.723.1, QCELP等编解码器的算法;
6.熟悉数字信号处理的基本原理,如时频变换,心理声学模型,掩蔽特性等;
7.英语口语熟练;
8.能积极主动,团队意识强,具有高度责任心,能够承受较强的工作压力。
Job Description:
At Cidana, you will be responsible for developing, porting and optimizing audio and speech codec components (AAC+, AMR-WB+, BSAC, MPEG1/MPEG2, WMA, AMR, G.723.1, QCELP) used in Cidana's multimedia player, streaming player, and mobile DTV applications across all CPU and OS platforms. Support for NEON/ARM11/9 and Windows/Linux is required. Initially, your focus will be on the decoding component, but later you will be developing the corresponding encoding component as well. Part of your responsibilities will be to interact and respond to our customer's requests and provide periodic technical reports. Interaction with other members of the audio codec group, as well as Cidana's other development groups (video codec group, systems/applications groups) is extremely important and expected. You will be reporting to the audio codec manager.
Requirements:
1. BS/MS in computer engineering/computer science/electrical engineering
2. 3+ years of experience in C++/C and object oriented programming
3. 3+ years of experience in DSP, ARM, NEON, SSE/WMMX, x86 assembly
4. Working knowledge of Windows, Linux, embedded platform development
5. Familiarity with AAC+, AMR-WB+, BSAC, MPEG1/MPEG2 audio, WMA, AMR, G.723.1 or QCELP decoder/encoder algorithms
6. Familiarity with pitch-period analysis and recovery, frequency conversion, audio synthesis, psychoacoustic masking and distortion
7. Good English communication skills
8. Good teamwork skills
公司介绍
敬达是移动和消费电子市场先进多媒体软件解决方案的领导者:手机,便携式媒体播放器,导航设备,汽车,AVN等等。 敬达的移动媒体解决方案旨在成为解决全球多媒体播放,流媒体,数字广播,DTV兼容性等复杂问题的一站式提供商。
敬达提供所有常见的音频,语音,图像和视频编解码器格式,并提供广泛的一致性测试和平台优化。
敬达在全球范围内为开放移动电视和数字无线电标准提供支持,包括DVB-T,1-Seg, Full-Seg,ISDB-T,SBTVD,ATSC,ATSC M / H,DTMB,DVB-H,T -DMB,DAB(+),DRM,以及包括RTP / RTCP / RTSP,HTTP和MMS在内的各种互联网流媒体标准。 敬达已成功部署四大洲的多个客户。
我们的总部设在美国的帕洛阿尔托,在上海还有一个重要的研发中心。我们在中国大陆的上海和深圳有销售,在台北有台湾销售。我们的办公室和研发中心分布在世界各地提供销售和支持。
敬达提供所有常见的音频,语音,图像和视频编解码器格式,并提供广泛的一致性测试和平台优化。
敬达在全球范围内为开放移动电视和数字无线电标准提供支持,包括DVB-T,1-Seg, Full-Seg,ISDB-T,SBTVD,ATSC,ATSC M / H,DTMB,DVB-H,T -DMB,DAB(+),DRM,以及包括RTP / RTCP / RTSP,HTTP和MMS在内的各种互联网流媒体标准。 敬达已成功部署四大洲的多个客户。
我们的总部设在美国的帕洛阿尔托,在上海还有一个重要的研发中心。我们在中国大陆的上海和深圳有销售,在台北有台湾销售。我们的办公室和研发中心分布在世界各地提供销售和支持。
联系方式
- 公司地址:地址:span上海市黄浦区北京东路668号科技京城西楼26C