Given a 1000 Hz signal at a level equal to the long-time average level of speech, the average value of the magnetic field should be 100 mA/meter +/- 3 dB between 100 to 8000 Hz, with a maximum...
Search Results "Signal-to-Noise Ratio"
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2.1.2.3 New York State Standards
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407.4.8.2.2 Signal Level
The verbal annunciator shall be 10 dB minimum above ambient, but shall not exceed 80 dB, measured at the annunciator.
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407.4.8.2.2 Signal Level
The verbal annunciator shall be 10 dB minimum above ambient, but shall not exceed 80 dB, measured at the annunciator.
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411 Audible Signals
[See subsections ...]
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Costs to Provide Pedestrian Activated Signals at Roundabouts with Multi-Lane Pedestrian Street Crossings (Section-by-Section Analysis)
Costs to Provide Pedestrian Activated Signals at Roundabouts with Multi-Lane Pedestrian Street Crossings (Section-by-Section Analysis) The Volpe Center estimated the cost to provide pedestrian...
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3.1 Selecting the Appropriate Microphone
In order to ensure adequate signal strength and maximum speech intelligibility, microphone specifications should meet or exceed the specifications of the rest of the system components....
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C102.8.2 TIA 1083
TIA 825-A is the standard for TTY signals on the public switched telephone network interface (PSTN)....
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4.33.7* Types of Listening Systems
Assistive listening systems (ALS) are intended to augment standard public address and audio systems by providing signals which can be received directly by persons with special receivers...
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E102.8 Telecommunications Industry Association (TIA)
TIA 825-A is the standard for TTY signals on the public switched telephone network interface (PSTN)....
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Public Address Systems and Microphones
Also, it is highly recommended that the ALS signal processor and amplifier be separate from the public address system unit in order to maintain independent equalization and volume control...
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inLOOP Commercial Use Product Line 3000 Assistive Listening System
inLOOP Commercial Class D amplifiers have been professionally designed for use in applications where exceptional sound reproduction and signal clarity is imperative....
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inLOOP Commercial Use Product Line HD Assistive Listening System
Professional Grade inLOOP HD Class D amplifiers have been designed for use in applications where exceptional sound reproduction and signal clarity is imperative....
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11B-407.4.8.2.2 Signal level
The verbal annunciator shall be 10 dB minimum above ambient, but shall not exceed 80 dB, measured at the annunciator.
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11B-407.4.8.2.2 Signal level
The verbal annunciator shall be 10 dB minimum above ambient, but shall not exceed 80 dB, measured at the annunciator.
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11B-407.4.8.2.2 Signal level
The verbal annunciator shall be 10 dB minimum above ambient, but shall not exceed 80 dB, measured at the annunciator.
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Designing Sidewalks and Trails for Access, Part I of II: Review of Existing Guidelines and Practices
Source: U.S. Department of Transportation / Beneficial Designs, Inc. Document: 184 pages (1.67 MB PDF) Publication Date: July 1999 Sidewalks and trails serve as critical...
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inLOOP Personal inLOOP Assistive Listening System
This version of InLoop transmits a signal through a Personal inLOOP Pad that concentrates the signal in one area for one user....
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E102.8 TIA (Section-by-Section Analysis)
This is the standard for TTY signals on the public switched telephone network interface (PSTN)....
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Paragraph (d) (Advisory Guidance)
Acoustic coupling is subject to interference from ambient noise, as many handsets do not provide an adequate seal with TTYs. Therefore, alternate (non-acoustic) connections are needed....
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inLOOP Personal Loop 400
This product is designed to provide a stable loop signal in areas up to 400 square feet, but will power areas up to 500 square feet in ideal conditions....
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Designing Sidewalks and Trails for Access, Part II of II: Best Practices Design Guide
This guidebook is the second part of a two-phase project focused on designing sidewalks and trails for access. It was created to provide planners, designers, and transportation...
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Designing Sidewalks and Trails for Access, Part I of II: Review of Existing Guidelines and Practices
Sidewalks and trails serve as critical links in the transportation network by providing pedestrian access to commercial districts, schools, businesses, government offices, and...
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4.30.2* Character Proportion
Letters and numbers on signs shall have a width-to-height ratio between 3:5 and 1:1 and a stroke-width to- height ratio between 1:5 and 1:10....
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4.30.2* CHARACTER PROPORTION
Letters and numbers on signs shall have a width-to-height ratio between 3:5 and 1:1 and a stroke width-to-height ratio between 1:5 and 1:10....
