This is a large-sized file mainly stored on Blu-ray disks. Dolby TrueHDĭolby TrueHD is a lossless 5.1 surround sound codec that can be detected directly by your AV receiver after transmission from the source if you have not selected the decoding mode on your receiver. This means that your receiver should have 2 extra channels for this Dolby processing mode to work. To expand to 7.1.2, you need 2 additional height speakers, 2 ceiling speakers, or 2 up-firing speakers.
#Dts sound driver vs dolby pro
Dolby Pro Logic IIzĭolby Pro Logic IIz or PLIIz is an enhanced version of Pro Logic IIx processing mode that expands a 5.1 or 7.1 source for a 7.1.2 or 9.1 playback. This will depend on whether you have the extra speakers in your home theater set up. Dolby Pro Logic IIxĭolby Pro Logic IIx or PLIIx is a Dolby surround sound processing mode that up-mixes a 2 channel of 5.1 channel signal to create a 6.1 or 7.1 surround channel effect. It may not be as good as true 5.1 sources but it should do the trick. This means that you can enjoy a virtual 5.1 surround sound effect from a stereo source but can also work with a 4-channel Dolby source. Dolby Pro Logic IIĭolby Pro Logic II also known as PLII is a Dolby processing mode that creates a 5.1-channel signal from a stereo codec. However, if you choose this mode but with no extra speaker, the receiver will autoplay 5.1 channels. Dolby Digital EXĭolby Digital EX expands on the DD technology for a 7 channel (6.1 channel) system.Ħ.1 home theater systems are not common but if you use this mode on your AV receiver and have an extra speaker for that channel, Dolby Digital EX should be great. Dolby Digital Plusĭolby Digital Plus, DD+, or E-AC-3 is an enhanced 5.1 surround sound codec that allows you to reach up to 16 channels but is usually used in a 7.1 setup. Some TVs/projectors are also capable of decoding some Dolby digital codecs.ĭolby Digital soundtracks can also come in stereo 2.0 channel formats that can be used in a stereo sound system.ĭolby has also expanded on the Dolby digital codec by creating more advanced codecs such as Dolby Digital Plus, Dolby Digital EX, Dolby Pro Logic II, Dolby Pro Logic IIx, Dolby Pro Logic IIz, Dolby TrueHD, Dolby Atmos, Dolby Surround, and Dolby Atmos Height Virtualization. The source should also be encoded using this technology before the digital signals are sent to the processor using a coaxial/optical or HDMI connection. The 5 surround channels include 3 front channels (left, right, and center channels) and 2 surround channels (left and right surrounds).įor any device to decode DD codecs, it needs to have a processor capable of doing it. This codec is made up of 6 discrete channels that include 5 surround channels and one LFE channel for the Low-Frequency Effects.
#Dts sound driver vs dolby movie
Dolby Digital explainedĭolby Digital also known as DD or AC-3 is a lossy surround sound compression codec brought to us by Dolby Labs and was first used in 1992 in the movie Batman Returns. However, on supported sources and decoding devices, the sound quality difference may be close to inaudible depending on your personal preference.
DTS files also require more storage and bandwidth and require more powerful processing not found on most budget AV decoders (Soundbars, TVs, Receivers, laptops, etc). However, Dolby claims to have better decoding than DTS something that many may agree with.ĭD can compensate for the differences in codec details with better and more advanced processing algorithms.
#Dts sound driver vs dolby plus
This is a huge difference in sampling rates, a gap that widens once you get into the specific modes such as 6.0 megabits per second for DTS-HD and 1.7 megabits per second in Dolby Digital Plus which are two very similar formats. This is because DTS uses a bit rate of 1.5 megabits per second with the sampling rates going as low as 768 kilobits per second in DVDs.ĭolby Digital, on the other hand, compresses surround sound files at 640 kilobits per second going as low as 448 kilobits per second. However, the compression in DTS is 3 times less than in DD. Encoding and decoding in DTS and Dolby DigitalĭTS and Dolby encode and decode their audio files at different bit rates but both Dolby and DTS compress their audio files during encoding to save on storage and bandwidth. These 1s and 0s are then converted into an electrical signal (Analog signal) during decoding and amplified to produce sound. Meanwhile, decoding is the process in which the encoded data is processed and split (decompressed) into various analog channel outputs for audio reproduction.Īudio encoding is usually done through pulse-code modulation/PCM where sound is sampled and compressed into bits of 1s and 0s (Digital signals). 6 Summary What is encoding and decoding?Įncoding is the process in which analog audio signals are sampled and stored (compressed) in a DVD, CD, Blu-ray, online files, and so on.5 Alternatives to DTS and Dolby Digital.4 Dolby Digital VS DTS: Comparison table.
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