Corporate Profile

Sonus Technologies, Co. Ltd. is a high-tech engineering firm founded by Professor Chengde LI, President of NVH Committee of the China Society of Automotive Engineers and former FAW Technical Center Expert Specialist.

STC stands at the forefront in NVH engineering in China. We are the only independent Chinese service provider in the field with its own anechoic chambers, test beds, data acquisition and analysis systems.  With over 30 years of expertise in Noise and Vibration engineering, we are dedicated to applying the most advanced testing and analysis methods to resolve your various noise and vibration issues.

Given our strong technical know-how as well as close cooperation with numerous enterprises and institutions at home and abroad, we are in the position to offer high quality and timely turnkey solutions.

Senior Automotive Expert and Company Founder -- Prof. Chengde Li

• President of NVH Committee, Society of Automotive Engineers of China since 2004
• Vice Chairman and Secretary General, Committee of Ride Comfort, Society of Automotive Engineers of China from 1994-2004
• Award for Technical Excellence in the 1996 Chinese Automotive Industry Category
• Expert Specialist, Society of Automotive Engineers of China
• Expert Specialist, China Machinery Industry Federation
• Formerly the Leading Expert at the FAW Technical Centre
  • Person-in-charge for vehicle testing technologies and quality improvement
  • Responsible for NVH projects of over 30 vehicle models
  • Project Manager for the construction of FAW Technical Center’s Vehicle NVH Laboratory, Powertrain NVH Laboratory and other laboratories

Automotive Expert and General Manager -- Zhifeng Li

• Visiting scholar at the Fraunhofer Gesellschaft (FhG), Stuttgart, Germany from 2001-2003
• Visiting scholar at the Acoustic Competence Center (ACC), Graz, Austria from 2003-2004
• Project Manager at the Imtech Environmental Simulation/ Test Beds Engineering, Hamburg, Germany and Beijing, PR China from 2004-2006
• Graduate of the Jilin University, National Key Laboratory of Automobile Dynamic Simulation

Our unique approach

We are a highly-qualified team with abundant engineering experience and strong problem-solving ability.  We cherish our working relationship with each and every client, which is why in addition to delivering effective solutions, products and systems to our clients, we promise them strong after-sales technical support.

Mission and Vision

We see ourselves as a dedicated partner of local industries, committed to assisting our clients in improving the quality of their products, and establishing their competitive advantage and brands as a means of long-term strategic development.  We offer all-around quality products and services at good value, making innovation swift and viable.

Our Capacity

STC owns a full-line of facilities which enable us to perform vehicle and component NVH evaluation:

• Semi-anechoic chamber for vehicle testing
• Semi-anechoic chamber for engine testing
• Anechoic chamber for component testing
• Reverberation chamber
• Intake/ exhaust system test bed
• Vibration test equipment
• Stiffness test bed
• Damping test bed
• Workshop

We also own a wide array of NVH measurement tools and analysis software:

• LMS Test.Lab
• LMS Test.Xpress
• LMS Pimento
• Crystal Instrument CoCo
• Head Acoustics Artemis
• G.R.A.S. microphones
• Kistler sensors
• Sound intensity probe, modal hammer, shaker, dodecahedral loudspeaker etc.

Our team comprises high-caliber experts and technical personnel.