The Disk Drive

USING THE DISK DRIVE

The disk drive on the SR850 may be used to store 3 types of files.

1.Data File

This includes the data in the active display trace. In addition to the data, the instrument state (sensitivity, input configuration, time constant, reference, scan parameters, aux outputs) and the trace definition of the stored trace are saved. Data files are recalled into the trace buffer of the active display. If the present trace buffer is configured to hold less points than the stored trace, then points are recalled start- ing with the oldest point in the stored trace until the trace buffer is filled. The stored instrument state and the trace definition of the recalled trace are recalled as well. When data is recalled from disk, the instru- ment state is changed to the state in effect when the data was stored!

2.ASCII Data File

This file saves the data in the active display trace in ASCII format. These files may not be recalled to the display. This format is convenient when transferring data to a PC application. ASCII files are much larger than the binary data file for the same trace.

3.Settings File

This files stores the lock-in settings. This includes the instrument state (see Data file) as well as the system setup (printer, plotter, etc.) Recalling this file will change the lock-in setup to that stored in the file.

The disk drive uses double-sided, double density (DS/DD) 3.5" disks. The disk capacity is 720k. The SR850 uses the DOS format. A disk which was formatted on a PC or PS2 (for 720k) may be used. Files written by the SR850 may be copied or read on a DOS computer.

This measurement is designed to familiarize the user with the disk drive. We will use the internal oscillator to provide a signal so that there is some data to save and recall. Specifically, you will save and recall a data file and a settings file.

STORING AND RECALLING DATA

1.Disconnect all cables from the lock-in. Turn the power on while holding down the [←] (backspace) key. Wait until the power-on tests are completed.

When the power is turned on with the backspace key depressed, the lock-in returns to its default settings. See the Default Settings list in the Menu section for a complete listing of the settings.

The display is the "normal" lock-in display. The lock-in setup is displayed across the top of the screen. The upper numeric readout and bar graph shows the value of X (Rcosθ) and the lower graph shows the the value of Y (Rsinθ).

2.Connect the Sine Out on the front panel to the A input using a BNC.

The input impedance of the lock-in is 10 MΩ. The Sine Out has an output impedance of 50Ω. Since the Sine Output amplitude is specified into a high impedance load, the output impedance does not affect the amplitude.

The lock-in defaults to the internal oscillator refer-

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SRS Labs SR850 manual Using the Disk Drive, Storing and Recalling Data
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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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