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For HDMI 2 & Analog, the Mediatek chipsets | |
sharpness level can only be set between 0 and +2. The default is level 0. | |
The higher the level, the sharper the video details are. However, too high | |
a sharpness level may cause while line etching around objects. | |
Noise Reduction – To select whether the player shall apply video noise | |
reduction processing. |
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For HDMI 1, the noise reduction level can be set between 0 and 8. The | |
default is level 0, which turns off noise reduction. When set to level 1, | |
the QDEO scaler adjusts the picture quality by reducing “mosquito noise” | |
(artifacts around the outlines of objects) and “block noise” | |
patterns caused by video compression). These two noise reduction are | |
also called Compression Artifacts Reduction (CAR) and have several levels | |
of aggressiveness. When set to level 2, the player applies the Motion | |
Adaptive Video Noise Reduction (VNR), which handles the random noise | |
and the | |
film grain). |
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Its level is automatic because there is a noise estimator circuitry in the | |
video processor that calculates how much noise presents and adjusts | |
the level of VNR accordingly. When set to a high level between 3 and 4, | |
the player applies both CAR and Motion Adaptive VNR, with more | |
aggressive “block noise” reduction at level 4. At level 5, the player applies | |
aggressive CAR for low quality video content, and adds Motion Adaptive | |
VNR at level 6. At level 7, the player applies the most aggressive CAR for | |
very low quality video, and adds Motion Adaptive VNR at level 8. | |
Remember that excessive noise reduction may cause a loss of detail. We | |
recommend using the noise reduction function only when you encounter | |
poorly encoded or compressed video that has apparent noise artifacts. | |
For HDMI 2 & Analog, the noise reduction level can be set between 0 and | |
+3. The default is level 0. When user increases the level, the player | |
adjusts the picture quality by applying mosquito noise reduction, random | |
noise reduction and MPEG block noise reduction at the same time. The | |
higher level user sets, the more aggressive noise reduction functions | |
apply. | – Used to select a |
Colour Enhancement (HDMI 1 video output only) | |
colour enhancement level (enhance certain colours in the spectrum) of | |
the video output. It provides the ability to make more vivid some colours | |
without causing hue shifts, loss of details or changes in skin tones. | |
Contrast Enhancement (HDMI 1 video output only) | – Used to select a |
colour enhancement level (expands details in the shadows) on the video output.
azur 651/751BD
Filters (751BD only)
For all sources the 751BD
This runs our proprietary code from Anagram Technologies which performs jitter suppression,
The front panel Filter button allows cycling between three different anti- alias filters as described below.
The three different Filter functions are: Linear Phase, Minimum Phase and Steep. All three filters are optimised specifically for audio playback. Each offers excellent sound quality but differs subtly in optimisation, hence we’ve made all three available to you.
Note: For clarity, all diagrams show the theoretical response of the DSP itself, excluding any analog filtering at the DAC outputs or the
Linear phase filter frequency response
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| 0 | 0.1 | 0.2 | 0.3 | 0.4 | 0.5 | 0.6 | 0.7 | 0.8 | 0.9 | 1 |
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The Linear Phase filter is a highly regarded audio filter offering low ripple in both the pass and stop bands, and what is known as constant group delay. Constant group delay means that audio signals of all frequencies are always delayed by the same amount when passing through the filter. All audio is therefore fully
The
Linear phase impulse response
ENGLISH
Amplitude
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