User manual POLYCOM EF2201

[. . . ] Vortex EF2201 Reference Manual VORTEX EF2201 REFERENCE MANUAL Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Features and Benefits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Pre-Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 EF2201 Front and Rear Panels. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Mounting the EF2201 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Connecting the EF2201 to Other Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] This allows you to enable or disable noise cancellation. Noise Cancellation Level (Input T). Selects the level of noise cancellation. This ranges from 0 to 15 dB. Sets the amount of suppression used the line echo canceller (LEC). Figure 10. Enables or disables compression on Input T. VORTEX EF2201 Reference Manual 18 Technical Support: 800. 932. 2774 LCD MENU STRUCTURE OUTPUTS The OUTPUT menu contains PHONE OUTPUT GAIN, MUTE, DELAY ENABLE, DELAY, and DYNAMICS PROCESSING . Phone Output Gain. Choose the gain applied to the outgoing phone signal. Output Settings Output T Phone Output Gain Mute Output Delay Enable Delay Dynamics Processing The default setting is 0 dBu. Though the EF2201 allows for positive output gain, you should always try to adjust input gains to a good level so that the output gain is 0 dB. If you find that you need a positive output gain from the EF2201, first check your input gain to make sure you are getting a good level (around 0 dB). EF2201 Outputs submenu MATRIX SETTINGS The MATRIX menu includes gain and mute adjustments for the main matrix (Out T, In T, In PM0, PM1, WM0, WM1, etc. ) and the submatrix (P submatrix, W, X, Y, and Z submatrices). Matrix Main Matrix Gain Mute SubMatrix Gain Mute Figure 12. EF2201 Matrix submenu © Polycom, Inc. 19 VORTEX EF2201 Reference Manual LCD MENU STRUCTURE PARAMETRIC EQ MENU The input equalizer is comprised of up to 5 bands of filtering. The whole group of filters for the channel can also be enabled/disabled without losing the settings for each band. For each band, you first select the type of filter from the following: Parametric/ Peaking, High Shelf, Low Shelf, Lowpass, or Highpass. Parametric EQ Input/Output EQ Channel Band Filter Type Frequency Bandwidth Gain Slope Filter Enable Parametric/Peaking. · Center Frequency: in Hz, between 20 Hz and 20, 000 Hz in 1 Hz steps. · Bandwidth: in octaves, between 0. 05 and 2 octaves in 0. 05 octave steps. · · Center Frequency: in Hz, between 20 Hz and 20, 000 Hz in 1 Hz steps. Bandwidth: in dB/octave, between 1 and 24 dB/octave, but is always less than or equal to 1. 2 x Gain. · · Center Frequency: in Hz, between 20 Hz and 20, 000 Hz in 1 Hz steps. Bandwidth: in dB/octave, between 1 and 24 dB/octave, but is always less than or equal to 1. 2 x Gain. · Cutoff Frequency: in Hz, between 20 Hz and 20, 000 Hz in 1 Hz steps. · Cutoff Frequency: in Hz, between 20 Hz and 20, 000 Hz in 1 Hz steps. Center frequency on Parametric/Peaking is the point with the most (or least) gain. Bandwidth is the width halfway up the peak (so if the peak is 10 dB, it is the width between the points where the gain is 5 dB). Center frequency on shelving filters is the frequency where it crosses the point halfway between 0 dB and the gain of the filter, halfway up the slope. Figure 13. [. . . ] If your Vortex product is not covered by our warranty, call us at (800) 932-2774 or fax us at (404) 892-2512 for advice about whether we will repair your Vortex product and for other repair information, including charges. Polycom, at its sole discretion, may replace rather than repair your Vortex product with a new or reconditioned one of the same or similar design. The limited warranties and remedies set forth above are exclusive and in lieu of all other warranties, whether oral or written, express or implied. Polycom specifically disclaims any and all implied warranties, including, without limitation, the warranties of merchantability and fitness for a particular purpose. No User Serviceable Parts This product contains no user serviceable parts. [. . . ]