Audio Electronics and Acoustics Consulting Services

Precision Speaker Measurement

Your loudspeaker drivers and completed speaker systems can be accurately and fully characterized. Data can include these speaker measurements:

• Frequency response, on and off axis
• Impedance vs. Frequency
• Distortion: THD, IM, three signal, etc.
• Power Compression, a measure of bass capability at high signal levels
• Thiele-Small parameters
• Large-signal parameters (Xmax, Bl vs. X, etc.)
• Power handling capability

In addition to these objective measurements, we use subjective measurements such as SAI's "chord" intermodulation distortion test.

Enclosed speakers can be measured in quasi-anechoic and more realistic room environments.

Listener Training / Car Audio Systems Training

Stroud Audio training courses have been provided to automotive OEMs and their suppliers worldwide. Offered are:

• Acoustics skills assessment and targeted training for your audio designers
• The Audio System Design Seminar with 280+ slides for automobile audio designers
• Listener training classes featuring SAI's comprehensive skilled listening methods and sound demonstrations
• Customized classes to meet your training needs

Listening Room Design and Evaluation

A well-designed listening room with proper loudspeakers, components and tuning will provide an enveloping and convincing illusion of a live music performance.

Let Stroud Audio help you turn your conference room or even your established listening room into a world-class listening entertainment environment. Tools we will use include:

• Room modal analysis and spatial measurement
• Ray tracing and reflection control methodologies
• Sound isolation techniques
• Expert sound system tuning and measurement tools

Listening Tests

SAI has perfomed both in-house and on-site listening experiments for professional papers. Using state-of-art computer based software and precision interface hardware, A-B single or double-blind testing can be performed:

• Electronics comparisons (e.g. CODECs)
• Speaker comparative evaluation
• Surround or frequency response preference testing