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Provides a disclaimer about the scope and limitations of the design guide.
Lists recommended books for further detailed information on sound system design.
Expresses gratitude to individuals and groups for their contributions to the project.
Discusses factors like location, reverberation, size, and mounting options for system design.
Covers system purpose, required fidelity, bass response, and speech intelligibility.
Addresses ambient noise levels and required sound pressure levels for system operation.
Guides selection of speaker types based on application requirements and bass response needs.
Explains layout patterns and speaker spacing for optimal sound coverage.
Details amplifier power needs and appropriate wiring for system design.
Explains the role of equalization in balancing sound, improving intelligibility, and preventing feedback.
Covers voice announcements, speech energy concentration, and intelligibility for paging systems.
Addresses challenges in amplifying speech for extended periods, avoiding dead spots, and managing multiple microphones.
Details requirements for natural-sounding music reproduction and wider speaker spacing.
Explains demands for louder, more dynamic music, including frequency response and power requirements.
Discusses systems needing to reproduce both speech and music with balanced response and coverage.
Treats sound for AV presentations as a combination of speech and foreground music.
Describes unobtrusive sound distribution from low ceilings over large areas for speech and music.
Covers full-range systems suitable for foreground music or when ceiling mounting is not ideal.
Discusses unobtrusive installation, potential cost, and aiming challenges of in-wall speakers.
Highlights higher SPL, limited frequency response, and use for long projection distances or noisy environments.
Explains the use of subwoofers to augment bass response in music systems for high-fidelity sound.
Defines the Bel and decibel as logarithmic ratios of signal loss or level change.
Explains SPL as the acoustic pressure reference for dB, with hearing thresholds defined.
Covers rules of thumb for understanding decibel changes in volume, power, and voltage.
Explains speaker sensitivity as on-axis loudness at a specific distance with a given power input.
Describes how sound volume decreases by 6 dB each time the distance from the source is doubled.
Defines speech intelligibility and factors affecting it, including frequency response and signal-to-noise ratio.
Explains how sounds can obscure each other, affecting intelligibility and perception of reflections.
Discusses reverberation as a source of intelligibility loss in large rooms and its impact on sound decay.
Describes EQ's role in adjusting frequency amplitudes to compensate for speakers and rooms.
Establishes maximum required SPL by considering power rating, sensitivity, and listener distance.
Defines coverage angle as the beamwidth where SPL is within 6 dB of the on-axis level.
Explains frequency response as the range over which a speaker operates with a given tolerance.
Guides placement and layout decisions for ceiling speaker systems, considering coverage and budget.
Explains how to determine the area covered by a ceiling speaker based on its coverage angle.
Discusses how ceiling height affects speaker coverage area and required power.
Explains the trade-off between speaker density for coverage consistency and overall system cost.
Describes common layout patterns like square and hexagonal for ceiling speaker systems.
Details methods for spacing speakers based on coverage radius and desired overlap for consistent sound.
Defines edge-to-center spacing as the highest density for distributed systems, ensuring best performance.
Covers layout factors for wall-mount speakers, emphasizing aiming and room dimensions.
Explains approximate coverage area calculation for wall-mounted speakers using triangular patterns.
Details spacing and aiming for wall-mount speakers based on coverage area shape and room geometry.
Explains how to calculate the number of subwoofers needed and their placement factors.
Compares direct connection and constant voltage methods for amplifier-speaker interfaces.
Details steps to calculate the required amplifier power per speaker based on sensitivity and distance.
Recommends supplying subwoofers with power they can safely handle, using pink noise and program ratings.
Provides an example calculation for selecting speakers and amplifier power for a workspace paging system.
Illustrates amplifier selection for an outdoor paging system using horn speakers and noise levels.
Calculates amplifier power for a room requiring high-quality sound for presentations, speech, and music.
Provides guidance on using the tables for quick reference in system design.
Explains general considerations for speaker height, coverage area, and SPL figures in the tables.
Details spacing recommendations for ceiling speakers based on coverage area and edge-to-center overlap.
Explains factors influencing wall-mount speaker spacing and coverage depth, including tilt.
Presents coverage and spacing data for F-101C/M ceiling-mount speakers.
Provides coverage and spacing data for PC-671R/RV ceiling speakers.
Lists coverage and spacing data for H-1 in-wall speakers, for ceiling mount.
Offers coverage and spacing data for H-2/WP speakers, suitable for ceiling or wall mounting.
Provides coverage and spacing data for BS-1030B/W wall-mount speakers.
Details coverage and spacing for BS-20W/WHT wall-mount speakers.
Presents coverage and spacing data for CS-64, CS-154, and CS-304 series speakers.
Offers coverage and spacing data for F-160G/W and F-240G/W wall-mount speakers.
Provides coverage and spacing data for F-505G/W and F-605G/W wall-mount speakers.
Lists coverage and spacing data for H-3/WP wall-mount speakers.
Introduces SC Series paging horns and their specifications.
Presents coverage and spacing data for various SC Series paging horns.
Provides charts for determining speaker cable length based on wire gauge and load power for 70.7 V systems.
Offers charts for speaker cable length based on wire gauge and load power for 25 V systems.
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