This allows filmmakers to unburden the main channels by diverting the strongest bass to the separate LFE channel, as needed. The signal in the LFE channel is calibrated during soundtrack production to be able to contribute 10 dB higher SPL than the same bass signal from any one of the screen (front) channels.Įven if all three screen channels are active, enough bass could be delivered by the LFE channel alone to bring the theatres subwoofer into acoustic balance with the screen channels. The LFE channel carries additional bass information to supplement the bass information in the main channels. The difference between the LFE channel and the subwoofer output is that the LFE channel is used to carry additional bass information in the Dolby Digital program while the subwoofer output represents how some or all of the bass information will be reproduced. It is possible for a program to contain an LFE channel, but a decoder may provide no subwoofer output because all of the bass information in the program, including the LFE channel, can be reproduced by the main speakers. In contrast to the main channels, the LFE channel delivers bass-only information ( LFE does not equal subwoofer Dolby Digital programs may include a bass-only LFE channel, but this channel does not correspond directly to a subwoofer output. There should be crossover settings onboard your AV receiver than allow you to set at which frequency the receiver sound redirect audio to the sub. If dealing with audio that is only 2 channel in nature then it will not include this channel and the subwoofer will not be engaged unless you are using a receivers inbuilt bass management to redirect frequencies below a pre determined freqyency to the sub. This is the.1 channel associated with 5.1 and 7.1 soundtracks. Playback is via ARC HDMI and whether I select PCM, RAW or Dolby Digital its the same.
Manual onkyo ht r380 review ps3#
When I go into the Level Cal menu the subwoofer does have noise (although again very quiet) but watching things through the TV, or playing games on the PS3 and the subwoofer is silent Any idea please Ive tried switching cables around with another and its exactly the same so I think its a configuration issue.
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