Yamaha DSP-A1 Owner's Manual - Page 37
CENTER GEQ Adjusting the Center Channel Graphic Equalizer
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English 5. CENTER DELAY (Adjusting the delay of center sounds (dialog etc.)) q Control range: 0 ms to 5 ms (in 1 ms step) Preset value: 0 ms q This adjustment is effective only when the Dolby Digital (AC-3) or the DTS is decoded and the signals of selected source encoded with the Dolby Digital (AC-3) or the DTS contain center channel signals. Adjusts the delay between the main sounds (at the main channels) and dialog etc. (at the center channel). The larger the value, the later the dialog etc. is generated. In your audio system, the distance from the center speaker to your listening position may be shorter than the distance from the left or right main speaker to your listening position. In that case, sounds from the left main, center and right main speakers can reach your listening position at the same time by delaying the sound from the center speaker. 6. CENTER GEQ (Adjusting the Center Channel Graphic Equalizer) The built-in five band graphic equalizer is used to tailor, over a ±6 dB range, the overall output frequency response of the center channel. The five bands cover the complete audible sound spectrum and are centered on 100 Hz, 300 Hz, 1 kHz, 3 kHz and 10 kHz frequencies. Adjustment should be done to each frequency individually. Adjusting method After selecting the function (title) in step 1 on page 32, press the + or - key to display the condition of the equalizer. Then select a frequency with the or key and adjust its level with the + or - key. * Adjustment can be made by monitoring sounds using the test tone. To use the test tone, press the TEST key so that "TEST DOLBY SUR." appears on the display before making adjustment. The test tone is output from the center speaker(s). 7. CINEMA EQ (Adjusting the tonal balance of speakers) It is difficult to balance tonal quality of the main, center, front effect and rear effect speakers, because they may be different in type and size, and their setting positions and heights are also different. The built-in CINEMA Equalizer enables you to balance tonal quality of the speakers easily by adjusting tonal quality of the main/center, front effect and rear effect channels individually. This is also useful to compensate for loss of tonal response of the main and center speakers when these speakers are placed behind the projection screen (if you use a projector in place of a TV). The CINEMA Equalizer consists of the High-shelving equalizer (HIGH) and the Parametric equalizer (PEQ). The High-shelving equalizer changes high frequency characteristics smoothly, and the Parametric equalizer boosts or cuts any selected frequency smoothly. Adjusting method 1. After selecting this function (title) in step 1 on page 32, press the + or - key. 2. Select the channels on which you will make adjustments by pressing the or key so that the arrow points the corresponding title. L, C, R Left main, center and right main channels FRNT EFCT Front effect channels REAR EFCT Rear channels 3. Press the + or - key to turn the equalizer for the selected channels to "ON". 4. Press the key repeatedly until the title of adjusting mode (7A. L,C,R EQ/7B. FRNT EFCT EQ/7C. REAR EFCT EQ) for the channels on which you will make adjustments is displayed. * The adjusting mode will not be displayed for the channels that are set to "OFF" in step 2. 5. Make adjustments for the selected channels. Select the item with the or key and change the value with the + or - key. HIGH: FRQ Selects a turnover frequency of the High-shelving equalizer. GAIN Adjusts the maximum equalizing level. PEQ: FRQ Selects a frequency you will boost or cut. GAIN Adjusts the equalizing level on the selected frequency. * Adjustment can be made by monitoring sounds using the test tone. To use the test tone, press the TEST key so that "TEST DOLBY SUR." or "TEST DSP" appears on the display. The test tone is fixed on the channels on which you make an adjustment and output from the corresponding speakers. It is recommended to make these adjustments together with the tonal quality adjustment of the center speaker on the function "6. CENTER GEQ". Note Excessive increase of the GAIN level may cause an overload. It is recommended to adjust the GAIN level so that it becomes lower than the preset value. 35