Bang & Olufsen BeoVision Avant-55 User Manual

Also see for BeoVision Avant-55: Quick guide User guide

Contents

Bang & Olufsen BeoVision Avant-55 User Manual Manual pdf 45 page image

Bass managementWhen switched on, the low frequency content in the audio signal may be re-routed todifferent loudspeakers, depending on their capabilities. Bass management redirects lowfrequencies to the most capable loudspeakers in your current setup. For example, if youhave two small loudspeakers and a subwoofer, the low frequency signals will be directedto your subwoofer instead of to your smaller main speakers.Crossover frequency: All output signals use the same crossover frequency toensure that coherent signals on multiple output channels have matched phaseresponses when passed through the bass management and bass re-directionprocessing. However, you can adjust it here or bypass it.Enable filtering: Determine whether the bass management filtering should be onor off for the individual output channels.Panning: Adjust the panning of the bass management signal derived from eachoutput channel into the two bass management low-frequency channels. Adjustbass according to your listening position.Redirection levels: Adjust the level of the two bass management low-frequencychannels being added back to the output channels.Redirection balance: Adjust the relative levels between the two bassmanagement low-frequency channels in each output channel.LFE input to ceilingSome record labels use the LFE (Low Frequency Effect) channel on their discs for heightinformation instead of low frequency effects. This means that the LFE input channelshould be directed to a 'full range' speaker placed above the listener. Setting the LFEinput to ceiling to Yes directs the audio signal on the LFE input to a loudspeaker with a'ceiling' speaker role.SubwooferHere, you can adjust the relative delays of the subwoofer and the main loudspeakerchannels and adjust the allpass frequency to better match the subwoofer to the mainspeakers.Time alignment: Allows you to adjust the relative delays of the subwoofer andthe main loudspeaker channels. When the value is positive, the subwoofer isbeing delayed relative to the main loudspeaker channels. When the value isnegative, the subwoofer output precedes the main loudspeaker channels by thedisplayed value.All-pass frequency: There is a first-order allpass filter in the signal path of thesubwoofer output. This can be adjusted to better match the subwoofer to themain speakers in cases where either the placement or the phase responses ofthe loudspeakers result in poor matching of the upper- and lower-frequencycomponents through the crossover band.VolumeAdjust the volume level of the television. The volume level you set here is the volumelevel the television will start at each time you switch it on, no matter which volume level itwas at when you switched it off.Here you also set the highest volume level allowed in normal usage. This can be used tolimit the maximum output of the television.45