Beelink M8/S82 HW Decoding for Dolby

[Grape]

S82/M8 adopt Hardware Decoding And Software Decoding To Support Dolby Sound

1. Hardware Decoding

A S802: Only by way of software decoding to support Dolby sound
Product is named as S82 & M8, below please see the chip’s silk printing

S802B: By way of hardware decoding to support Dolby sound
Product is named as S82B & M8B, below please see the chip’s silk printing


B. Verification
Please download Dolby test video

http://download1334.mediafire.com/0smhi437ud1g/g2dug8cb4urpa4p/Dolby+Digital.rar

Connect to TV, power on，select“My Apps”


Select “MX Player”


Play“Dolby Digital”document folder’s video



Please see test result as below：

	Dolby test video
S82/M8(S802 chip)	Voiceless
S82B/M8B(S802B chip)	Voiced

2. Software Decoding
by way of software decoding to support Dolby sound
A. MX Player
Use MX Player to play Dolby video, click screen，a menu will appear on the
top of player, select “H/W”


Pop Menu, choose “S/W decoder”, by this way of software decoding to support Dolby video play


B. XBMC
Please ensured that set default player as “MX Player” before use XBMC


Start XBMC player


Choose the video route

Play video, Please enjoy the amazing effect of surround sound.

[oman]

If using xbmc can play dolby,why should I buy s802B?

the two's surround effects are different?

[Blackman]

Difference Between S802 And S802B

Dolby multichannel simulation process puts listener in the center of an empty room. Then simulate the room like 5.1 or 7.1 units. It makes use of human ear auditory error to realize Dolby Surround effect. Playing stereo music by this technology has a strong sense of space, which make people feel of listening music in the music hall.
S802B is the chip that chip official site and Dolby official site authorize formally to support Dolby audio effect, S802 not yet. Regard to 4k BOX with these two chips, please see the below points:
1. It is sure 4k box play 4k films, output resolution 2160p picture, XBMC only can support 1080P output resolution at present. Full HD film need better audio track, S802B supports hardware decode Dolby audio track. XBMC supports software decode Dolby audio track.
2. Difference between audio hardware decoding and software decoding: hardware decoding takes advantage of chip itself, software decoding uses the software algorithm. Dolby AC-3 format support to devide audio into 6 independent channel to compress and store. It is very small damage to audio quality, and high compression efficiency. The sound source compressed this way need a special decoding process when played. Dolby researched and developed AC-3, only Dolby provides AC-3 decorde function. Hardware decoding is a device that has a hardware decode chip for decoding. After S802B support Dolby, we can make use of any player to achieve Dolby audio play, which is no damage or small damage to the audio track. Software decoding damage audio track greatly, many stereo films are double audio track output. Sometimes, phenomenon of sounds and images are not synchronized will occur. And a lot of players don't support software decorde Dolby, it makes us incovenient.