Christopher Arnold Email & Phone Number

Stamford, Connecticut, US

Santa Cruz, CA, US

• Evaluates the overall audio performance through acoustic/electric measurements as well as subjective listening.
• Optimizes both the DSP audio tuning (EQ, echo cancellation, noise reduction) and test routines used to quantify performance.
• Measures and specifies transducers for headsets/speakerphones to ensure they meet the performance criteria (frequency response, sensitivity, THD, impedance) and cost/size requirements.
• Conducts acoustic studies to understand current project issues and creates new test metrics to be used on future products based on the results.
• Creates acoustic simulation models based on lumped element models to predict how changes to the enclosure/headset will affect acoustic performance and then validates through testing samples/prototypes.

• Analyzed microspeaker measurement data and provided feedback for how to best balance acoustic performance with assembly line yield and long-term reliability.
• Developed test plans to determine the root cause of product failures and followed up with the manufacturing team to ensure the proper corrective actions were carried out.
• Performed FEA and lumped parameter simulations to predict acoustic performance for innovative designs and identify potential design weaknesses (e.g. surround design, cavity dimensions, clearance depth, etc).
• Presented the project status to the customer weekly and helped focus design goals to ensure the key features met product expectations.
• Supported the customer during the design/development stage and through the complete life cycle of products.

Salford, Greater Manchester, GB

• Assisted in conducting research for an on-going project to discover new and better ways to quantify the objective characteristics of speech signals.
• Developed an algorithm to accurately find all utterances in each speech sample and calculate their crest factors.
• Performed analysis on male and female speech using test scripts (MATLAB).

• Assisted in acoustical treatment of both recording rooms and performed sweep measurements to obtain their frequency responses.
• Maintained up to date flow diagrams for the recording signal chain and performed maintenance on audio processing devices (equalizers, compressors, speakers, microphones, etc).
• Developed strong listening skills to better recognize audio artifacts (such as clipping, hum, rub & buzz).

Master Of Science (Msc), Acoustics

Bachelors Of Science, Electrical Engineering