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 Acoustics DSP Engineer - Cupertino, California, United States

Job information
Posted by: Apple 
Hiring entity type: Retail 
Work authorization: Not Specified for United States
Position type: Direct Hire, Full-Time 
Compensation: ******
Benefits: See below
Relocation: Not specified 
Position functions: Computers - Programming Languages
Computers - Platforms
Computers - Networks
Computers - Software Engineer
Travel: Unspecified 
Accept candidates: from anywhere 
Languages: English - Fluent
Minimum education: See below 
Minimum years experience: See below 
Resumes accepted in: English
Cover letter: No cover letter requested
Job code: 200294065 / Latpro-3829440 
Date posted: Oct-05-2021
State, Zip: California, 95014


Acoustics DSP Engineer

Santa Clara Valley (Cupertino) , California , United States



Posted: Oct 4, 2021

Weekly Hours: 40

Role Number: 200294065

At Apple, new ideas have a way of quickly becoming extraordinary products, services and customer experiences. Sound is an essential and compelling facet of the customer experience. Apple has assembled a world-class Acoustics team that enables our customers to experience music with delight, communicate with clarity and appreciate our products without disturbance from noise. In Apple Acoustics we work with obsessive attention to detail, directly contributing to products that ship to millions of people around the world. Audio System Tuning team is looking for an Acoustics DSP Engineer to ensure the correct marriage between audio software and acoustic hardware in Apple's HW devices. The successful candidate will be responsible for all Audio DSP optimization in various iOS, OSX and Wireless device products, focusing in Speech Quality for Telephony and FaceTime applications.

Key Qualifications

  • Audio DSP knowledge for audio applications, such as Echo and Double Talk, Microphone Beam-Forming, Multi-Band compression, Equalization, Noise Suppression in portable devices.
  • Theoretical and practical knowledge of Machine Learning techniques used in optimizing Noise Canceller, Wind performance and delivering great Voice Quality for Telephony and VoIP applications.
  • Knowledge of Microphone arrays and Beam Forming techniques in Audio applications.
  • Tuning of echo cancellation algorithms, providing the correct tradeoff between echo return loss and double talk performance, and speech intelligibility.
  • Solid C/C++, Python and Matlab coding capabilities
  • Strong SW debugging skills
  • Knowledge on transducers and their Acoustic integration is preferred
  • Outstanding written and verbal communication skills, ability to work optimally in multi-functional teams.


The candidate will be a member of Acoustic Hardware Team, and work day-to-day with the Audio Tuning Engineers and DSP algorithm teams. This role will require attention to details and excellent HW / SW debugging skills. You will be interacting with different teams at Apple, and as such, you should have great communication and collaboration skills. You will tune, optimize and listen to different internally developed algorithms for Apple HW with focus on advanced techniques to deliver the best Voice Quality in all Apple HWs. This role might require some international traveling as well. Apple delivers world class products and Audio should just makes these products even better with superb sound.

Education & Experience

Most of our engineers have advanced degrees in Acoustics, Mechanical Engineering, Electronics, or an equivalent field, but if you've followed a different path to expertise in Acoustic and Audio DSP, we still want to hear from you.


See job description


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