The Gold Line <b>DSP2B</b> is a dedicated meter to measure Speech Intelligibility using OPT STICis intelligibility software option.</p><p>Speech intelligibility is not a physical quantity like Amperes, Volts or Btu's. It is the degree to which we understand spoken language. Speech is not necessarily intelligible simply because it is audible. Everyone has experienced speech signals that are loud enough but overly reverberant, suffer from echoes or distortion and therefore are not understandable. Announcements in airports, train stations and places of worship often suffer from this problem.</p><p><b>Intelligibility</b><br />Intelligibility is measured by sending a test signal through the sound system and into the listening environment. The test signal is an artificial reproduction of a range of modulated sound frequencies important to human speech. The meter measures the received signal, compares it to the signal specification and computes the Modulation Transfer Function (MTF). The MTF is a measure of the change in or distortion of the signal as it passes through the sound system and as it is affected by the listening environment. The MTF is used to compute and display the Speech Transmission Index (STI) on the meter. The meter can convert the STI to a generic Common Intelligibility Scale (CIS), which permits direct comparison to other test methods.</p><p>It should be noted that any "measurements' are actually predictions of voice intelligibility. Subject based test methods can gauge how much of the spoken information is correctly understood by a person or group of persons for that particular test. When properly done, that resulting value is a prediction of how much of the spoken word will be correctly understood by others at some other time. Intelligibility meters have been developed and use a test method that has been correlated with accepted subject based test methods. Therefore, the numbers presented by a meter are also predictions. Still, it is common to refer the results as measurements. This is exactly the same as audibility measurements. The definition of a decibel for sound pressure levels is the ratio of the measured sound pressure level to the threshold of human hearing. That is, zero decibels is the threshold of audibility. However, that threshold is a subjective number determined many years ago by testing a large group of people with "normal" hearing.</p>
The Luxe™ White Series <strong>LTBXS2MTCPWHT</strong>, X-STAND COMBO PACK, features a two tier X-Stand with a removable 19" wide top shelf that allows you to use your laptop or other gear safely, securely, and conveniently over your mixing console controller system. In addition, also included is a matching color mic clip, 8" long goose neck, and 30" long boom arm. Fully assembled, it can all be easily attached to the stand and adjusted in seconds to the perfect angle for mic positioning. Designed for DJ controller setups that don't require an extra heavy-duty support system, this X-Stand model with its steel/aluminum powder coated frame is built strong yet light for extra mobility. The X-STAND COMBO PACK includes (1) dual tier X-Stand, (1) mic boom with goose neck & mic clip, and (1) laptop/gear shelf. With all these 'X'tras that comes together with it, well, that's just one 'X'tra cool X-Stand system! Don't you agree? Also available in standard black |LTBXS2MTCP|.</p>