pcm audio vs dolby digital

pcm audio vs dolby digital

Your TV will simply be decoding the lossy compression format it receives into PCM if you use it's decoder. PCM refers to an algorithm that devices use to represent analog waves. Hi, I’m Jason. My second point is that even if the material or content is of such high quality that it will benefit from PCM level it depends how PCM is implemented in the gear and there is a great variety of standards within the PCM format. It works well with analog and digital input, making it the most popular option for transmitting audio signals. For all intents and purposes it's a lossless transport system. In addition to the 5.1 to 7.1 speaker playback, different formats offer cutting edge audio technology geared toward enhancing the sound quality. Commercial cinemas used 320Kbps AC3 for years it sounded OK too. You wouldn't compare WAV to PCM as such, it's like comparing a cup to the water inside it. So if you’re going to use bitstream for programs that use hi-res secondary audio, the output will be limited to standard definition. Commercial cinemas used 320Kbps AC3 for years it sounded OK too. If you’re going to set your Blu-ray player to use PCM as the audio output, the player will internally decode all the files from Dolby, Dolby TrueHD, DTS, and DTS HD Master Audio codecs, including every related soundtrack. I would like the stereo channels to output in stereo and the 5.1 channels to output in 5.1. If you do not have the PCM available (or lossless audio format) from the content itself, then whatever quality you have is in the lossy compressed format you are given. In both the recording and reproduction processes there are many bottlenecks. I have a feeling you are talking about PCM in terms of converting the source Analogue waveform into a digital representation and the loss due to quantization of amplitudes into binary. Is this what I should be having it on, or should I have PCM?

Whether you’re playing standard or high-res audio, your speakers will produce the same audio quality. At this sample rate the entire audio spectrum can be accurately represented in digital form (leaving aside the sampling resolution used) based on Nyquist's Theorem. Bitstream sends an encoded 5.1 signal over digital optical or coaxial. It is a lossless system. Most often, the 5.1 information is downmixed to 2.0. As there is no header, compatible audio players require information from the user that would normally be stored in a header, such as the encoding, sample rate, number of bits used per sample, and the number of channels. Hi All, I have Samsung TV F8500 connected to Yamaha RX … I apologise profusely for not saying it but in my own mind I was referring to IMPLEMENTATION of .wav files in real world audio, rather than pure PCM signals in abstract. On the other hand, bitstream works with coded audio files, but it can support more frequencies, allowing you to produce hi-res audio.

PCM – outputs the stereo channels in stereo and the 5.1 channels in stereo Dolby Digital – outputs the stereo channels in some kind of fake surround sound and the 5.1 channels in 5.1 RAW – seems to do the same thing as the Dolby Digital setting. It's of course entirely possible that approaching years does play a part! When you set the player for bitstream transmission, the receiver will process everything, then produce decoded, uncompressed audio files. I have to be honest, I can't really tell the difference between Dolby TrueHD and Dolby Digital! Almost every device that converts digital to an analog audio output, and vice-versa, uses this technology to deliver audio files. It means that your player will decode all the audio files, including Dolby, Dolby TrueHD, DTS, and DTS HD Master Audio. I gave you a link to Wikipedia for a thorough explanation, but you chose to ignore it. My first point is a bit different and it is that very little audio content will benefit from being created and played at PCM level anyhow. http://www.avsforum.com/t/1439262/samsung-smart-hdtv-its-dts-neo-2-5-audio-mode. There are a number of factors that should go into your choice, including the quality of your Blu-ray player and audio receiver. I was sure it was imposed for some reason, There is a discussion about S/PDIF max bitrate here:http://www.avsforum.com/t/972048/s-pdif-max-bitrate. You can even find a lot of players today that will allow you to switch between PCM and bitstream connection seamlessly. I think there is actually a list of TV's that pass 5.1 out there somewhere on Whirlpool, I think with regards to the Sonos Playbar threads as people wanted to know how to get 5.1 through the playbar/play 3/sub ecosystem. However, here is what happens when you choose either setting. This is not like 128k mp3 sound where artifacts are common. This is VERY different to what most people believe as being it must support 8 channels of PCM just because the most recent HDMI version says it is capable of doing so. and when you say 5.1 ... you are treating that as a universal term, which it isn't when it promises "5.1 output". When I changed to Dolby Digital, the difference is significant and the bass response sounds a lot better. @40557456 andy9288 writes...The point is that changing audio output on tv to PCM shows only 2 channels on the receiver. Robert Silva has written about audio, video, and home theater topics since 1998. DTS Neo:X can accept 7.1 LPCM, definitely ...http://www.dts.com/~/media/eff9b713e9db4e02b615026dbed50e30/DTS_Home_Theater_NeoX_infosheet.pdf.

No, it is over HDMI ARC. If the file uses hi-res secondary audio formats such as Dolby TrueHD, DTS-HD, or higher, the receiver will downgrade it to Dolby Digital or DTS because it’s trying to squeeze both types of formats into the same bandwidth. I'm pretty sure the F8500's either have PCM 'Uncompressed' output. No PCM is transmitted. physically connected to your home theater receiver. Given HDMI and the strong relationship with DRM ... perhaps the 3rd reason for not outputting all uncompressed PCM channels becomes more apparent. It is just a much higher sample rate. You want to take advantage of 5.1 surround sound when using digital optical or coaxial. ARC is limited to the same audio types as Optical, so DD, DTS Core and 2.0 PCM only, Samsung TVs with Neo2:5 are basically doing a pro-logic transform in the TV, it's not real 5.1 sound. This technology has been around for more than 100 years and remains the standard for transmitting audio streams.

Requires a high-quality receiver to achieve better results.

Blu-Ray discs utilize lossless audio in up to 7.1 channels. posted 2013-Oct-13, 12:19 pm AEST O.P. andy9288.

If there is a detectable difference (which is debatable for most sound material) then you are likely to really have to focus on one speaker at a time to pick it up. The reduced data rate is supported by the ARC. It’s the technology that PCM and other hi-res audio transmission used as a framework, but it doesn’t make this technology outdated. Both formats utilize “perceptual” data reduction techniques to remove useless data in PCM signal output, thereby preserving high fidelity sound.

Wired or wireless bitstream transmission allows you to take advantage of higher frequencies, providing your sound system better potential to produce the best output.

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