Keypad

saved as well. When a trace is recalled from disk, the marks are recalled as well. Existing marks are replaced with the recalled marks.

[CURSOR MAX/MIN]

Pressing [CURSOR MAX/MIN] will center the cursor region around the maximum or minimum data value on the active chart display. The Cursor Seek mode in the CURSOR SETUP menu choos- es whether this key finds the max or min. If the cursor seeks the mean, then the [CURSOR MAX/MIN] key finds the maximum on-screen point. The cursor will be positioned at the Min, Max, or Mean of the data within the region, depending upon the cursor seek mode. The [CURSOR MAX/MIN] key only searches the data which is on the screen. If the max/min value occurs at more than one location, then the one closest to the left edge is found.

[AUTO RESERVE]

Pressing [AUTO RESERVE] will adjust the dynam- ic reserve to the minimum reserve required. To do this, the reserve is decreased until a RESRV over- load is detected, indicating that the analog input amplifier is overloaded. The reserve is then increased to remove the overload.

Auto Reserve will work only if the overloading noise source has a frequency greater than a few Hz. Lower frequency noise sources may overload so infrequently that Auto Reserve can not detect it.

[AUTO RESERVE] does not change the notch pre- filter settings.

[AUTO GAIN]

[AUTO GAIN] will adjust the sensitivity so that the detected signal magnitude is a sizable percentage of full scale. If the present value of R is a very small percentage of full scale when [AUTO GAIN] is pressed, then Auto Gain will respond very quick- ly. If R is very much greater than full scale, then Auto Gain may take several time constants to reach the optimum gain setting. Auto Gain will stop before reaching the optimum sensitivity if a RESRV overload is detected.

[AUTO GAIN] does not adjust the time constant or roll-off.

[AUTO PHASE]

[AUTO PHASE] adjusts the reference phase shift so that the measured signal phase is 0°. This is done by subtracting the measured value of θ from the programmed reference phase shift. It will take several time constants for the outputs to reach their new values during which time θ will move towards 0°. Do not press [AUTO PHASE] again until the outputs have stabilized. When the meas- urement is noisy or if the outputs are changing, Auto Phase may not result in a zero phase.

AUTO SETUP

There is no truly reliable way to automatically setup a lock-in amplifier for all possible input sig- nals. In most cases, the following procedure should setup the SR850 to measure the input signal.

1.Press [AUTO GAIN] to set the sensitivity.

2.Press [AUTO RESERVE].

3.Adjust the time constant and roll-off until there is no FILTR overload.

4.Press [AUTO PHASE] if desired.

5.Repeat if necessary.

At very low frequencies, the auto functions may not function properly. This is because very low fre- quency signals overload very infrequently and the time constants used tend to be very long.

[AUTOSCALE]

Chart displays and bar graphs may be Auto Scaled. Auto Scaling only affects the displays - the data values and the front and rear panel analog outputs are not affected.

Pressing [AUTOSCALE] when a bar graph is the active display sets the range of the graph so that the present reading will be a major percentage of the range. The center will always be set to zero. If the data is rapidly changing, then Auto Scaling may not result in the optimum scaling. Both the range and center may be manually adjusted in the DISPLAY/SCALE menu.

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SRS Labs SR850 manual Cursor MAX/MIN, Auto Reserve, Auto Gain, Auto Phase, Auto Setup, Autoscale
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SR850 specifications

The SRS Labs SR850 is a high-performance audio processor designed to enhance the listening experience across a variety of applications. With its advanced technologies, the SR850 delivers superior sound quality that is particularly noticeable in environments where audio clarity and fidelity are paramount. This device caters to audio professionals, audiophiles, and casual listeners who demand exceptional performance from their audio systems.

One of the standout features of the SR850 is its proprietary SRS 3D Audio technology. This innovative feature creates a more immersive soundstage, allowing users to experience audio as if they were in a live performance setting. By adding depth and dimension, it elevates the listening experience, making music, movies, and games far more engaging.

Additionally, the SR850 incorporates SRS dialog clarity technology, which enhances speech intelligibility in dialogues and vocals. This is particularly beneficial in film and television viewing, where dialogue can sometimes be drowned out by background music or sound effects. With dialog clarity, users can enjoy crystal-clear conversation tracks without adjusting volume levels continuously.

The device also supports various audio formats, ensuring compatibility with a broad range of media. It boasts inputs for both digital and analog sources, allowing connections to various devices such as TVs, laptops, gaming consoles, and more. The versatility of inputs makes the SR850 a convenient addition to any home entertainment system.

Another impressive characteristic of the SR850 is its compact and user-friendly design. The intuitive interface makes it easy for users to adjust settings to their preference, whether they are a novice or an audio expert. The device is equipped with programmable presets, enabling users to store their favorite sound profiles, making switching between settings quick and hassle-free.

Furthermore, the SR850 features advanced EQ capabilities, granting users the ability to tailor the audio output to their specific tastes. This personalized approach to sound adjustment enhances the overall experience, allowing users to get the most out of their audio content.

In summary, the SRS Labs SR850 is a sophisticated audio processor packed with features designed to significantly uplift sound quality and listening pleasure. With its cutting-edge technologies such as SRS 3D Audio and dialog clarity, an array of connectivity options, and customizable EQ settings, the SR850 stands out as an outstanding option for anyone looking to enhance their audio experience. Whether for professional use in sound engineering or personal enjoyment in home entertainment, the SR850 proves to be a valuable asset.
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