Sound reception

Successful installation, or roll-out, of your PSM systems requires sound planning and effective execution. No matter how diligent you have been, or how receptive and well-managed your company may be, no system as complex as PSM can work perfectly the first time. As every project manager knows, it s impossible to anticipate every outcome or contingency—especially when human behavior is involved. Pilot testing a new system provides the opportunity to identify weaknesses under controlled conditions this in turn enables you to fix problems before the system becomes fully operational. Once these problems are corrected, the pilot test produces a template for installation that can be replicated elsewhere. 

Receptor processes must also be selective. You can usually carry on a conversation with one person at a party if the overall noise is not too loud because you can select his or her speech sounds over the many speech sounds available in the room and focus on some to get the desired information. The reception process and the selection process in the ear do not involve the same mechanical and neural parts, but for the sake of simplicity, we will talk of reception processes as including the selectivity factor and the conversion factor. 

It is possible that psi information flows directly from the psi receptor to the brain and then results in overt behavior. An everyday example of this would be your reaction if someone sneaks up behind you and makes a loud noise. You jump We would then talk about the reception and conversion of the sound waves into a barrage of neural impulses from the ear and their direct effect on various startle reflex mechanisms within the nervous system and brain, resulting in your behavior-jumping. The whole thing happens before consciousness has time to get involved. 

Lin, N., Reed, H.L. and Saric, W.S. (1992). Effect of leading edge geometry on boundary-layer receptivity to freestream sound. In Instability, Transition and Turbulence. (Eds. M.Y. Hussaini, A. Kumar and C.L. Streett), Springer,New York. 

We would like to thank our students for being receptive sounding boards and we thank Joanne Morton and Linda Muse for being the best kinds of partners— friends. 

The third difference is that the products commercialized by the two sets of industries were dramatically different and directed toward different markets. Consumer electronics and computers transformed the ways of communication through sound (audio), sight (video), and manipulation of information (computers). Their products required two sets of hardware devices, one for transmission and the other for reception, with software to process the information within both and that flowing between them. The mature chemical and pharmaceutical industries, on the other hand, utilized the new scientific knowledge to create a vast array of new materials and medicines that replaced natural ones—metal, wood, and other organic products—that... 

Asdic Anglo-French anti-submarine detection device, forerunner of Sonar, named after the Anti-Submarine Detection Investigation Committee. It comprised a transmitter/receiver which sent out undersea sound impulses and picked up the echo if an impulse struck an object. By measuring the time lapse between transmission and reception of the echo, the range of the target could be calculated. 

In an informal way, we often use a scientific approach in daily life. Consider this familiar scenario. While listening to an FM broadcast on your stereo system, you notice the sound is garbled (observation) and assume it is caused by poor reception (hypothesis). To isolate this variable, you play a CD (experiment) the sound is still garbled. If the problem is not poor reception, perhaps the speakers are at fault (new hypothesis). To isolate this variable, you play the CD and listen with headphones (experiment) the sound is clear. You conclude that the speakers need to be repaired (model). The repair shop says the speakers check out fine (new observation), but the power amplifier may be at fault (new hypothesis). Replacing a transistor in the amplifier corrects the garbled sound (new experiment), so the power amplifier was the problem (revised model). Approaching a problem scientifically is a common practice, even if you re not aware of it. 

The figure of merit for a sonic system of measurement that utilizes the generation, transmission, and reception of sound is defined as the maximum allowable transmission loss. This loss is derived from the sonar equation, which simply states that the received signal is equal to the background noise plus a measurement requirement, where the measurement requirement is set by the particular measurement under consideration. This method is not unique to sonics and may be applied to radar, astronomy, and communication theory. The advantage of the sonar equation that underlies the figure-of-merit computation is the fact that it permits quantitative comparison of various measurement schemes... 

Acoustics science of the production, control, transmission, reception, and effects of sound and of the phenomenon of hearing. 

The human auditory system processes information primarily serially having at best two receptive channels, spatial information must be built up by integration over time. This later capability, however, is profound. Out of a full orchestra, a seasoned conductor can pinpoint an errant violinist by sound alone. 

Sound is the propagation, transmission, and reception of waves in some medium, most commonly air. Noise is unwanted sound. 

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