Don't let noise delay your project
Environmental noise and vibration studies for the SEIA, wind farms and regulatory compliance.
900 projects delivered · 125 approved by the SEIA · zero outsourced stages.
We are Acoustic Civil Engineers with more than 15 years of experience and 900 projects completed in Chile and South America, specialists in noise, vibration, and shadow flicker.
Featured service
D.S. No. 38/11 (MMA) Compliance Assessment
Occupational Noise Control Engineering Study
Environmental Noise Control Engineering Study
Underwater Noise Studies
Wind Farm Noise and Shadow Flicker Studies
Environmental Impact and Vibration Studies for the SEIA
Services
SEA Guidelines and Criteria
All our services are carried out using certified instruments and strictly following the methodologies established under current regulations. Each of our studies is developed in accordance with the methodological guidelines and evaluation criteria of Chile’s Environmental Assessment Service (SEA), ensuring the highest standard of regulatory compliance.
About Us
We protect people’s health and native wildlife from the noise and vibration emissions of projects, driving sustainable development in the country.
We are an engineering firm founded in 2010, based in Puerto Montt and working across Chile and South America. Over 900 projects and 125 approved by the SEIA, with a team in which we are all Acoustic Civil Engineers.
We stand behind our work to the end: we support the response to the SEA’s observations through to resolution.
Why it works
No surprises
We detect regulatory risks before they become SEIA observations.
One single team
We measure, model, and write the report ourselves: we don’t outsource critical stages.
Full traceability
Every measurement is backed by valid ISP calibration and certification, in line with IEC standards.
A clear process, from start to finish
1. Diagnosis
We assess the regulatory scope and acoustic risks of your project.
2. Field measurement
Type 1 instruments certified by the ISP, operated by our technical team.
3. Modeling and analysis
We simulate scenarios using specialized software based on the project’s noise sources.
4. Report and approval
We provide the technical support required for the SEIA or the relevant authority.
5. Follow-up
Ongoing monitoring and advice on observations or regulatory changes.
Our Experience
Throughout our history we have taken part, either as lead consultant or with team members invited to join, in the country’s most important government projects related to environmental noise, establishing ourselves as an undisputed technical reference in the field. Here are some of our featured projects:
Featured projects
2025-2026
Development of Background Information for a Wind Farm Noise Measurement and Reporting Protocol
Development of background information for a wind farm noise measurement and reporting protocol.
2022 – 2025
Junquillos Wind Farm
Project carried out between 2022 and 2025 for WSP, involving noise studies.
2022 – 2023
Antofagasta Region Rail Transport
Project carried out between 2022 and 2023 for Empresa de Transporte Ferroviario S.A., involving noise and vibration studies.
2024 – 2025
San Antonio Outer Port
Project carried out between 2024 and 2025 for Jaime Illanes & Asociados, involving noise studies.
2015
Noise Level Assessment in Coronel
Project carried out in 2015 for Chile’s Undersecretariat of the Environment (Ministry of the Environment, MMA).
2017 – 2018
Acoustic Characterization of Wind Farms
Project carried out between 2017 and 2018 for Chile’s Undersecretariat of the Environment (Ministry of the Environment).
2018 – 2019
Noise Map of Route 5 North-South – Concessioned Section
Project carried out between 2018 and 2019 for Chile’s Undersecretariat of the Environment (Ministry of the Environment).
2019 – 2020
Background Study for the Review of D.S. No. 38/11 (Ministry of the Environment)
Project carried out between 2019 and 2020 for Chile’s Undersecretariat of the Environment (Ministry of the Environment).
2023 – 2025
Update and Assessment of Noise Levels in the Coronel Municipality
Project carried out between 2023 and 2025 for Chile’s Undersecretariat of the Environment (Ministry of the Environment).
Success story: the first wind farm noise study in South America
Challenge
Chile had no technical precedent for evaluating wind farm noise within the SEIA.
Solution
We developed the first study of its kind in South America for the Ministry of the Environment (2017–2018).
Result
Today it serves as the national methodological reference for evaluating new wind farm projects in the country.
More than
900
Projects completed
More than
125
SEIA-approved projects
More than
50
Wind farm projects completed
More than
18
Government projects completed*
More than
40
Scientific Publications
*Seven (7) as lead consultant and eleven (11) as invited consultant (one or more company members were part of the consulting team).
Trusted by
What our clients say
“Working with Acústica Austral has been an excellent experience. We have been working together for more than 10 years, and we highlight their professionalism, fast response times and the high technical standard of their noise and vibration modelling, which has been key support for the development of our Environmental Impact Statements (DIA).”
Macarena Rivera
Environmental Manager · Giro Verde
August 3, 2026
“At Mainstream we value the technical rigour and the reliability of the results delivered by Acústica Austral. Their approach — close, flexible and highly personalised service — allows them to understand the specific needs of each initiative and provide high-value solutions tailored to the challenges of our projects.”
Denisse Márquez
Environmental & Permits Leader · Mainstream Renewable Power
August 4, 2026
“We have been working with them for a year now and the service has been excellent. They stand out for their technical knowledge, commitment, proactivity, responsiveness and flexibility: everything you expect when you hire an expert consultancy.”
Bernardino Camousseigt
Environment and Permits Coordinator · Enel Green Power & Thermal Generation Chile
August 4, 2026
Products
Since 2025, we have a strategic alliance with the Canadian company ZeroSound, which allows us to offer innovative solutions to control noise emissions from projects.
Active noise cancellation
Thanks to ZeroSound’s innovative technology (unique in the world), we offer active noise cancellation systems for outdoor sources such as electrical substation transformers, HVAC equipment, generator sets, and more. This highly complex solution focuses on tackling the noise propagation stage, from the emitting source to a receiver.
This system has already been installed at an electrical substation in Chile, validating its effectiveness under real operating conditions. If you’d like to learn more about how we can help, don’t hesitate to contact us.
Research + Development + innovation
In August 2018, Asesorías y Servicios en Acústica Austral SpA and the Universidad Austral de Chile signed a collaboration agreement aimed at furthering local and national engineering development through innovation and technology. This includes jointly developing research projects and product technology, among other initiatives. It also envisions the participation of university students through internships and thesis work at the company.
Technology
All our equipment is Type 1 (±1.1 dB precision) as established by the International Electrotechnical Commission (IEC) standards, with current certification from Chile’s Institute of Public Health (ISP), under the Ministry of Health (MINSAL).
We have a wide range of sound level meters, vibration meters, and continuous noise monitoring stations to carry out all our services effectively.
We also use the best software available on the market for our noise, vibration, and shadow flicker studies, ensuring the accuracy of our models.
Blog
Analysis and updates on environmental noise and vibration regulations in Chile.
Contact Us
Let’s talk! If you have questions or would like to schedule a meeting, just write to us. We’re here to help and answer any questions you may have.
Acústica Austral is part of the National Consultants Registry of the Ministry of Housing and Urban Planning (MINVU)
Registry No.: 4718.