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Bass EQ section

Similar to the Auto EQ, but for bass only.

  • Location
    Sets the place in the processing chain.

  • Band settings panel


    Responsiveness panel


    Main panel

    Bass EQ main settings.

    • Enable Bass EQ
      Enables the Bass EQ.

    • Mode
      Selects how the Bass EQ works.

      Either way, the high part of the band is never adjusted.

      "Adjust relative to each other" means that the bass bands keep their level in total, but are adjusted relative to each other.

      "Adjust relative to band above active bands" means that both bands are adjusted to match the level of the audio above the bass bands, without adjusting that highest band.

    Response speed panel

    Adjusts the Bass EQ response speeds.

    • Adjustment time
      The speed at which bands can move up and down in relation to the incoming audio.

      Unlike a compressor, running Auto EQ at a faster speed does not make audio more dense. It simply corrects spectral imbalances more quickly. Extensive listening and watching will assist in figuring out the best speed.

    • Acceleration at sudden gain jumps
      Relative response speed to spectral increases in a band.

      After the filter has increased level in a band, a loud sound might kick in which causes the filter to need to reduce it again. Sometimes, that correction might seem too abrupt. This control allows that downward correction to be slowed down and potentially sound more natural. Lower values correspond to slower downward correction.

    • RMS size

    Loud bands protection panel

    Protects against loud bursts due to abrupt spectrum changes.

    When the spectrum has been severely altered, the incoming audio my change abruptly. Using this feature will help the filter prevent large spikes from occurring. This may be especially noticeable in bass frequencies.

    • Reduce boost at sudden jumps (per band) above
      Enables Abrupt Change Protection.

    • Reduce boost at sudden jumps (per band) above
      Controls when the Abrupt Change Protection filter kicks in.

      If Abrupt change protection does too much (signified by white dots at the edge of the display), you can make it worry about fewer overshoots, using this control. Higher values mean less protection.

    Median display panel


    Speech panel


    • Reduce Bass EQ for speech by

    Bands panel

    The Bass EQ number of frequency bands.

    • Bands
      The number of bands to use for the Auto EQ.

    Flat frequency response panel

    This slider helps to keep the frequency response of both sweeps and pink noise flat.

    Similar to Flat frequency response.

    • Flat frequency response
      The flatness value.

      0 does nothing, 100% moves the measurement strength at crossover frequencies from -6 dB to 0 dB. See the thin lines in the Bands display.

    • Flat band tops
      Changes the shape of multiband processing bands.

      This enables a different band splitting mode with flatter top areas of the different bands, and a different mechanism to keep the frequency response flat.

      The advantage of this is that bands have less impact on each other, which can be used to generate a more stable sound image.

      See also Flat tops.

    • Protect
      -

    • Show median display
      Removes the median displays.

      Also slightly reduces the CPU load.

    Compatibility panel


    • Legacy attack


    Levels section

    Controls the Auto EQ target levels works.

    Levels panel


    Band controls panel


    • Relative target
      Target level for the Auto EQ.

      Auto EQ will keep the level in bands right where desired. This slider determines the appropriate level for each band on a +/- 12dB scale. Where the sliders are in that scale is irrelevant. The only thing that matters is the relationship of the bands to one another. For example, in a two band scenario if band 1 is at +2dB and band 2 is at 0dB, that’s identical to band 1 being at 0dB and band 2 being at -2dB.

      Important: The best results are obtained if, on average material, the meters are all in the center. The default settings are generally ok, but for different types of content some adjustments may be needed. To determine whether the levels are in the center on average, look at the median display.

    • Effect strength
      Determines how much effect Auto EQ has on each band.

      This filter does not have to fully correct spectral imbalances. Using this slider will make the filter do less correction. If band 1 is 6dB too quiet, and this is set to 50%, only 3dB of correction will happen.

    • Max cut
      The maximum amount of reduction the filter can make for this band.

      Setting this close to 0 dB makes the filter slightly less effective, but can greatly reduce audible changes in spectrum, especially for the center bands.

    • Max boost
      The maximum amount of increase the filter is allowed to provide for this band.

    • Band mix
      How loud each band is mixed into the end result.

      After correction has been applied, it is possible to still increase or reduce the output of the band.

      If you want to adjust the spectrum here, use Band Mix, not Target level for the Auto EQ.

      Auto EQ will keep the level in bands right where desired. This slider determines the appropriate level for each band on a +/- 12dB scale. Where the sliders are in that scale is irrelevant. The only thing that matters is the relationship of the bands to one another. For example, in a two band scenario if band 1 is at +2dB and band 2 is at 0dB, that’s identical to band 1 being at 0dB and band 2 being at -2dB.

      Important: The best results are obtained if, on average material, the meters are all in the center. The default settings are generally ok, but for different types of content some adjustments may be needed. To determine whether the levels are in the center on average, look at the median display. .


    Sound section

    Settings that control the sound of Auto EQ.

    Strength panel


    Limits panel


    Linking panel


    Side chain panel


    Band mix panel


    Sound panel

    Settings that control the sound of Auto EQ.

    • Channel linking
      Avoids the correction of the channels to drift too far apart.

      It is possible that the left/right balance could be incorrect even within a single band. Use this control to specify how much the correction should be allowed to vary between the channels.

    • ITU-BS.1770
      Measure levels based on ITU-BS1770.

      This reduces the effect of deep bass, and increases the effect of highs above about 1000 Hz.


    Silence section


    Silence panel


    • Move to center for input below

    • Reduce level by at most

    • Increase level by at most


    Bands section

    Frequencies and slope steepness of all the frequency bands.

    Bands panel


    Band frequencies panel


    Left slope panel


    Right slope panel


    • Frequency
      Center frequency for this band.

    • Slope to {}
      Steepness of the left slope of the band.

      Less steepness generally gives a more natural, but sometimes harder to control sound.

    • Flat tops
      The level at which the top of this band must be cut off.

      If no compression/limiting occurs, or if all the bands are compressed/limited by the same amount, the end result is guarranteed to be flat in frequency response.

    • Slope from {}
      Slope of the right side of the band.

      Less steepness in general gives a more natural, but harder to control sound.