Professional Acoustic Measurement
ACE-PROAUDIO provides professional acoustic measurement, room assessment and audio system testing for a range of applications, including:
Radio Broadcast Studios • TV Studios • Recording Studios • Halls • Auditoriums • Theatres • Cinemas • Multipurpose Halls • Educational Facilities • Other Specialised Spaces
Our measurements are intended to help identify acoustic problems, verify system performance and provide a practical basis for recommending suitable improvements.
Where appropriate, we use professional measurement equipment and software capable of analysing sound pressure level (SPL), frequency response, real-time spectrum, FFT data, impulse response, energy-time behaviour and reverberation characteristics.
For measurements requiring higher accuracy, suitable Class 1 measurement equipment and filtering may be used depending on the scope and requirements of the project.
Room Acoustic Assessment
One of the most important parameters in room acoustics is reverberation time (RT).
Excessive reverberation can reduce speech intelligibility, affect music clarity and make a room uncomfortable or difficult to use for sound reinforcement.
ACE-PROAUDIO can carry out reverberation measurements and analyse decay characteristics across relevant octave or one-third-octave frequency bands.
Typical measurements may include frequencies from approximately 63 Hz to 8 kHz, depending on the application, room conditions and measurement method.
The results can be used to:
- Identify excessive reverberation
- Evaluate room acoustic behaviour
- Compare performance across different frequency bands
- Assist in determining the amount and type of acoustic treatment required
- Support recommendations for acoustic absorbers, wall treatments and other corrective measures
Rather than relying only on a single overall RT value, the frequency-dependent reverberation characteristics of the room should also be considered when developing an acoustic treatment solution.
Acoustic Treatment Assessment
Acoustic treatment requirements differ from one room to another.
A recording studio, auditorium, classroom, multipurpose hall and sports facility will each have different acoustic objectives.
ACE-PROAUDIO therefore evaluates the existing room condition before recommending appropriate treatment strategies.
Depending on the project, recommendations may include:
Sound Absorption Panels • Wall Treatments • Low-Frequency Control • Reflective or Diffusive Elements • Treatment Distribution and Placement
The objective is to improve the room's acoustic performance while taking into consideration its intended use, dimensions, construction, existing finishes and available treatment areas.
PA System Measurement & Testing
ACE-PROAUDIO also provides measurement and testing services to assist with the setup, commissioning and optimisation of professional PA and sound reinforcement systems.
Depending on the system and project requirements, testing may include:
- Loudspeaker polarity verification
- Frequency-response measurement
- SPL measurement
- Impedance measurement
- Impedance sweep
- Time and delay alignment
- System response analysis
- Distortion-related checks
- Speech intelligibility assessment, including STIPA, where applicable
- Real-time spectrum analysis
- Other audio system measurements upon request
These measurements can help identify system problems and support more accurate configuration of loudspeakers, signal processing, delay and overall system alignment.
STC & Noise Criteria Assessment
Where required, ACE-PROAUDIO can also undertake measurements or assessments related to:
Sound Transmission Class (STC)
STC is used to describe the airborne sound-isolation performance of a wall, partition or building assembly.
Field measurements can help determine how effectively sound is being reduced between adjacent spaces and identify possible weaknesses in the construction.
Noise Criteria (NC)
Noise Criteria is commonly used to evaluate the level and spectral character of background noise within occupied spaces.
Excessive background noise from air-conditioning systems, mechanical equipment, external traffic or other sources can affect speech intelligibility, recording quality and general comfort.
Noise measurements can therefore form an important part of an overall acoustic assessment.
Measurement-Based Recommendations
ACE-PROAUDIO believes that acoustic treatment and audio system improvements should, wherever practical, be supported by actual measurement and technical assessment.
Measurement data provides a more reliable basis for understanding:
What the problem is • At which frequencies it occurs • How serious it is • What corrective action may be appropriate
This helps reduce unnecessary treatment and allows recommendations to be better matched to the actual condition of the room.
Acoustical Standards & References
Acoustic measurement and evaluation may refer to recognised international standards and technical guidance where appropriate to the scope of work.
Useful references include standards and publications from organisations such as:
ISO • IEC • ASTM • ANSI • Canadian Standards Association (CSA) • Canadian Acoustical Association (CAA)
CAA Guide to Acoustic Standards
The Canadian Acoustical Association (CAA) publishes a useful guide summarising acoustical standards from Canadian and international standards organisations.
The guide can help professionals identify standards relevant to areas such as:
- Environmental noise
- Building acoustics
- Sound isolation
- Room acoustics
- Occupational noise
- Measurement methods
For readers who wish to study acoustical standards in greater detail, the CAA Guide to Acoustic Standards provides a useful starting reference.
Professional Acoustic Measurement & Audio System Assessment
Whether you are experiencing excessive reverberation, poor speech clarity, uneven sound coverage, excessive background noise or uncertainty about your existing PA system performance, ACE-PROAUDIO can assist with measurement and technical assessment.
Measure first. Understand the problem. Then develop the appropriate solution.
Contact ACE-PROAUDIO for further information or to discuss your acoustic measurement requirements.
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