Blu-ray Disc players have numerous audio and video output setting options, subject to the method that you have your player personally linked with your home theater receiver.
If you have your Blu-ray Disc player connected to your home theater receiver by using Hdmi connectivity, there are two basic sound output options obtainable: Bitstream and PCM (aka LPCM). In the case of real audio superiority, whether or not you include your Blu-ray disc player's Hdmi connectivity audio output defined to PCM or Bitstream doesn't really make a difference. However, here is what comes about if you choose either set up:
Should you set the Blu-ray Disc player to output music as PCM, the player may carry out the music decoding of every Dolby/Dolby TrueHD and DTS/DTS-HD Master Audio - pertaining soundtracks internally and send the decoded acoustic signal in uncompressed manner to your home theater receiver. Consequently, your home theater receiver would not have to administer any alternative sound decoding before the acoustic is routed thru the amplifier system and the sound system. With this possibility, the home theater receiver will probably indicate the term "PCM" on its front line panel display.
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The Bistream Solution
If you get Bitstream as the HDMI acoustic output set up of your Blu-ray player, the player will jump over its actual integrated Dolby and DTS audio decoders and submit the undecoded signal to your HDMI-connected home theater receiver. Because of this environment, the home theater receiver can easily do almost all the digital decoding of the arriving transmission. Subsequently, in this case, the receiver would present Dolby, Dolby TrueHD, DTS, DTS-HD Master Audio, etc... on its front panel display determined by which model of bitstream coverage continues to be decoded.
You might have the preference with respect to which setting to work with, and as stated before, either setting must produce the similar acoustic standard. Nevertheless, there may be a second issue to think about as to which setting that can be great for your application. This includes entry to additional
BD Supplementary Audio Setting
A supplementary setting up alternative that could be open on your Blu-ray Disc player is "BD-Secondary Audio". Using this adjustment combines both the principal high-resolution acoustic (Dolby TrueHD or DTS-HD Master Audio) transmission with the next audio network - Nevertheless, if using this setting, the Blu-ray disc player could "downres" the Dolby TrueHD or DTS-HD to standard Dolby Digital or DTS that allows you to be capable of constrict both kinds of sound coverages into the exact bandwidth via bitstream. In this case your home theater receiver will possibly accept the network as standard Dolby Digital and decode accordingly.
HDMI vs Digital Optical/Coaxial Technology
Also, if you work with either the digital optical or digital coaxial connectivity possibility from your current Blu-ray disc player to your home theater receiver (convenient if your home theater receiver falls short of HDMI connections), you can even pick out PCM or Bitstream output options equally well for those connections. However, for this reason, the while the Bitstream output choice may deliver a Dolby Digital or DTS 5.1 surround sound signal to your receiver for further decoding, the PCM option is only going to distribute a two-channel service. The cause of this is that a digital optical or digital coaxial cable has no the adequate bandwidth capacity to shift a decoded, uncompressed, absolute surround surround audio signal such as an HDMI connectivity can.