Virtual engine sound system (VESS)

Products and reference designs

Virtual engine sound system (VESS)

Block diagram


Our integrated circuits and reference designs will help you create virtual engine sound system (VESS) designs, also known as an acoustic vehicle alerting system (AVAS), that allow you to meet government regulations and decrease your time to market.

Design requirements:

Modern VESS designs require:

  • Sufficient audio output power complying with federal regulations.
  • Compliant frequency spectrum and modulation of sound.
  • Reliable output load diagnostics in all operation modes.

Block diagram

Find products and reference designs for your system.

Technical documentation

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Type Title Date
Technical articles How to reduce PFC harmonics and improve THD using harmonic injection (part 2) 30 May 2014
Technical articles The importance of proper termination 28 Oct 2014
White paper Basic considerations for sensors in the powertrain (Rev. A) 23 Dec 2019
Technical articles Designing high-performance, cost-sensitive transimpedance op-amp circuits 20 Jun 2016
Technical articles Simplifying loop compensation and poles and zeros calculations 18 Mar 2016
White paper 動力系統感測器的基本考量 03 Oct 2019

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