{"id":13949,"date":"2021-11-15T06:49:13","date_gmt":"2021-11-15T05:49:13","guid":{"rendered":"https:\/\/demdlx704as001.ad.harman.com\/?page_id=13949"},"modified":"2021-11-15T06:49:13","modified_gmt":"2021-11-15T05:49:13","slug":"bass-enhancer-cao","status":"publish","type":"page","link":"https:\/\/audioworx.transfunnel.co\/old\/?page_id=13949","title":{"rendered":"Bass Enhancer CAO"},"content":{"rendered":"
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  1. Introduction<\/a>
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  2. Signal Flow Description<\/a>
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  3. Tuning Panel<\/a>
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    1.<\/span>Introduction<\/span> <\/span><\/span>
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    Compact audio playback systems may experience a noticeable reduction in bass fidelity during music reproduction. Bass enhancer extends the physical limitation of loudspeaker playback range by generating the virtual Bass. Bass Enhancer helps to enhance the perception of existing bass content.<\/p>\n

    Speakers have physical frequency range in which audio is reproduced well. Frequencies lower than this range are highly attenuated by the speaker. Bass enhancer first extracts the low frequency signal below the speaker cutoff frequency. Then, Bass enhancer adds the harmonics generated for each frequency component in the low frequency signal to original signal. These added harmonics are in the speaker physical frequency range and the signal is perceived as the lower frequency. This is also called virtual bass.This is equivalent to extending the lower limit of speaker\u2019s frequency range.<\/p>\n<\/div>

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    Last updated on February 6, 2024<\/div>
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    2.<\/span>Signal Flow Description<\/span> <\/span><\/span>
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    Bass Enhancer CAO has stereo input and output.<\/p>\n

    Bass enhancer CAO uses below audio objects:<\/p>\n

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    1. Bass enhancer audio object<\/li>\n
    2. Parameter Biquad<\/li>\n
    3. Delay<\/li>\n
    4. Compressor<\/li>\n
    5. Matrix Mixer<\/li>\n<\/ol>\n

      Bass enhancer audio object:\u00a0<\/strong>Bass enhancer audio object produces three channel audio output with stereo input (Left and right channel).<\/p>\n

      The three output channels of bass enhancer AO are:<\/p>\n

      a) high pass filtered left channel<\/p>\n

      b) high pass filtered right channel<\/p>\n

      c) harmonic signal<\/p>\n

      Harmonics are generated for each frequency component below speaker cutoff frequency. These harmonics are added to the original high pass filtered left and right channel to reproduce the enhanced perceivable bass.<\/p>\n

      ParameterBiquad: <\/strong>Parameter\u00a0Biquad\u00a0\u00a0AO\u00a0is used to shape the harmonics generated for the bass.<\/p>\n

      Delay: <\/strong>Delay\u00a0AO\u00a0<\/span>is used to adjust the delay to compensate for phase delay.<\/p>\n

      Compressor: <\/strong>Compressor\u00a0AO\u00a0<\/span>is used to limit the dynamic range of the harmonics generated by Bass Enhancer\u00a0AO.<\/span> In addition \u201cMake-up\u201d gain parameter of the compressor is used to control output level of Harmonics.<\/p>\n

      It is not mandatory to use Compressor\u00a0AO.<\/span><\/p>\n

      Matrix Mixer: <\/strong>Matrix Mixer\u00a0AO\u00a0<\/span>is used to combine the harmonics with high pass filtered left and right channel to produce bass enhanced stereo output.<\/p>\n

      \"\"<\/p>\n<\/div>

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      Last updated on May 2, 2024<\/div>
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      3.<\/span>Tuning Panel<\/span> <\/span><\/span>
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      \"\"<\/p>\n

      On the main panel, tuning and control parameters are accessible as follows:<\/p>\n