Cerjan Acoustics

Precision noise measurement services for industrial and environmental projects using ASTM, ANSI, and ISO protocols.

• Short and Long-Term Monitoring

  Continuous and short-duration noise level monitoring at project sites.

• System Level Definition

  Measurement and documentation of noise levels from specific equipment or operations.

• Regulatory Compliance Assessment

  Evaluation of measured noise levels against applicable local, state, and federal standards.

• Background Level Characterization

  Ambient noise baseline documentation for project sites.

Detailed noise modeling for regulatory compliance and project planning using SoundPLAN software and international standards.

• Acoustic Propagation Modeling

  SoundPLAN-based modeling using the General Prediction Method and ISO 9613-2 standards.

• GIS Data Integration

  GIS-based input data collection and results distribution for noise modeling projects.

Interpretation of noise standards to assist clients in developing cost-effective mitigation strategies.

• Mitigation Strategy Development

  Designing custom solutions such as silencers, acoustic enclosures, barriers, and lagging to control noise emissions.

• Post-Construction Validation

  Performing operational noise measurements post-construction to verify compliance with local limits.

Acoustical expert witness services for noise litigation, regulatory proceedings, and public hearings.

• Regulation Interpretation

  Analysis and interpretation of local, state, and federal noise regulations.

• Defensible Measurements

  Collecting and analyzing noise data using calibrated equipment and established protocols to withstand legal scrutiny.

• Compliance Analysis

  Objective analysis of noise data to determine ordinance compliance for legal and regulatory proceedings.

• Expert Testimony

  In-person testimony in quasi-judicial hearings, civil trials, and public hearings.

Acoustic assessment and noise mitigation analysis for high-density computing, cryptocurrency mining, and artificial intelligence data center facilities.

• Cooling System Noise Evaluation

  Analyzing and mitigating noise from air-cooling high-velocity fans, immersion cooling pumps, and hydro-cooling systems.

• Community Compliance Surveys

  Conducting precise baseline and operational surveys to satisfy residential noise limits.

Noise assessment, modeling, and mitigation for gas transmission pipelines and compressor stations.

• Compressor Station Modeling

  Predicting mechanical and aerodynamic operational noise using 3D SoundPLAN modeling.

• Above-Ground Component Mitigation

  Addressing high-frequency valve, piping, and metering noise using specialized mass lagging or valve trims.