Testing and Assessment

AV Best Practices Book
Partial Standard Document Image

Technitect offers a variety of testing and assessment services both as stand-alone tests and as part of a commissioning or an assessment suite. We have a wide variety of commercial and industrial grade test equipment for use in our testing, and we follow national and international standards (such as ANSI, ASTM, ISO, and IEC) where available for our test procedures and data analysis. When standards are not available, testing is based on industry best practices from a variety of sources including InfoComm, industry references, and our own 30-year experience in acoustics and pro AV.

Tests may be performed on existing facilities as part of an individual room or campus-wide assessment. Assessments are generally very detailed and cover all aspects of the facility encompassing the electronics and facility design, the installation quality, and the operational features of the technology and the space. The space plan, sight lines, room finishes, acoustics, lighting and furnishings are all part of the architectural review. Audio, video and control systems design and installation are all covered for the electronic systems.

Assessing System Performance

The scope of an assessment can vary depending on the client's needs, but the effort generally focusses first on the endpoint performance of the systems for the users:

  • Video and audio performance from system input to system output, including the effect of the environment on the user experience.
  • Assessments also include a detailed review of the design and installation as it relates to the user needs for a given facility, and a look at the installation, its quality, and its effect on the system performance in addition to the design.
  • Finally, a review of the control system interface design, implentation, and performance is conducted, since the control system is the generally the key to a system's success or failure, often regardless of audio and video performance.

Testing Services

Testing and reporting may be performed for many reasons, including third-party commissioning services, existing system assessments, and general field performance of systems or facility design and construction. The suite of tests performed depends on the facility and purpose of the testing. Some of the tests that we can conduct are listed below.


Acoustical Testing Spacer  Applicable Standards
 and References
Sound Isolation:
FSTC:
ASTC:
NIC:
NNIC:
Rw:
FOITC:
OINIC:
Field Sound Transmission Class
Apparent Sound Transmission Class
Noise Isolation Class
Normalized Noise Isolation Class
ISO Sound Transmission Index
Field Outdoor-Indoor Transmission Class
Noise Isolation Class
Spacer  ASTM E336
 ASTM E413
 ASTM E966
 ASTM E1332
 ISO 717-1

Impact Isolation:
IIC:
Ln,w:
Impact Isolation Class
Normalized weighted impact sound index
Spacer  ASTM E966
 ASTM E1007
 ISO 717-2

Background Noise:
RC:
NC:
dBA:
RTA:
Leq:
Room Criterion
Noise Criterion
A-Weighted Sound Pressure Level
Real Time Analysis / Spectral Measurement
Equivalent Continuous Noise Level
Spacer  ASHRAE Guides
 ANSI S1.4
 ANSI 1.42
 Acoustical References

Other Measurements:
RT60:
STI:
•  

Decay / Reverberation Time in Seconds
Speech Transmission Index
Classroom Acoustics per ANSI S12.60

Spacer  ANSI S1.1
 ASTM E-1130
 ANSI/ASA S12.60
 Acoustical References

Audio Testing






Audio Coverage
Frequency Response
Loudspeaker Polarity
Loudspeaker Impedance
Sound Masking System Performance
Echo Cancellation Performance
Spacer  ANSI/InfoComm 1M
 AV Best Practices
 Audio Industry References

Video and Lighting Testing




Display Contrast Ratio
Display Light Output (ANSI Lumens, nits)
Video Display Alignment
Lighting For Video and Conferencing
Spacer  ANSI/InfoComm 3M
 IEC 61947-1
 Upcoming ANSI Standards
 IES Design Guide 17
 IES Handbook
 AV Best Practices
 Video Industry References

Control System Assessments


Assessments of functionality, performance,
and GUI user-friendliness.
Spacer  AV Best Practices
 Dashboard for Controls
 AV Control References

AV and Conferencing System Assessments




Documentation
Needs Analysis
Design Review
Installation Assessmemt
Spacer  ANSI/InfoComm 2M
 AV Best Practices
 AV Industry References

 

 
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