S
SrikarM P
cSir someone has tampered my windows 10 PC's spatial sound coding feature... Since yesterday I am unable to upscale any Dolby digital; Dolby digital plus; Dolby true HD content into full Dolby atmos. Even though I have enabled Dolby atmos for headphones via the Dolby Access app, the thing it is decoding is only content created in Dolby Atmos. For example, when I play the given demo content in Dolby access app, I can see a message that "Dolby Atmos for headphones in use" and rest of the time when I play any normal 5.1 or 7.1 content outside of the Dolby access app, I can't see that message and the output is only stereo without any spatial sound rendering. When I download Dolby atmos or Dolby vision trailers or buy a Dolby cinema movie from Microsoft films and tv Store, in that case, Dolby atmos is actively decoding but in the rest of the times, I'm getting only stereo. Same problem with Dolby atmos for home theatre too... When I used HDMI 1.5 and connected my pc with Onkyo Dolby atmos AVR, I can apply Dolby Atmos for home theater option in spatial sounds tab in windows 10 similar to that of Dolby atmos for headphones that I applied but the input signal in the receiver is reading only as stereo when I play ac3, eac3 files. Again if I play a Dolby atmos 5.1.4 file, then the input signal is reading as Dolby atmos. What to do sir? Why the up scaler not working in my win 10 pc, in spatial sound settings? IMP this problem persists even with generic Microsoft audio drivers. Dolby access version 3.2.169.0
By the way TX-RZ920 Onkyo is my AV receiver. Now when I play a 5.1 or 7.1 movie and pass it through HDMI cable from my pc, it shows the incoming signal as “stereo” But when I played test tone file for 5.1.4 then it shows the incoming signal as ” Dolby atmos” But when I have played the same 5.1 or 7.1 movies on my pc, 1 week earlier it was been upscaled to full Dolby atmos 7.1.4 regardless of whether it is created in it or not and In my AV receiver it showed as “Dolby Atmos” as the incoming signal. Now that feature is lost. Even when I screencast my android phone to my pc, I used to get full Dolby atmos but now it is not. Also when I used apps like Microsoft connect; Microsoft edge legacy; Netflix ...immediately I have seen the message “Dolby Atmos For Headphones in Use” in the taskbar ( in the case of headphones ) but now it is not... Sir, I am sure that if we doesn’t get that message in the taskbar means we are getting the only stereo as output because I have seen in Dolby developer portal that Dolby access in windows 10 can decode Dolby atmos metadata as well as encode normal surround sound to 7.1.4 provided u need to give 5.1 or 7.1 files for it to do that and if you feed it with 2.1 or 2.0 it just sends it as it is without virtualization which is called as “direct to ears” feature it seems implemented by Dolby itself to support stereo files that are created for binaural headphone mix because atmos mix released in stereo binaural format should not be upscaled since they are not channel based loudspeaker mixes. So if we want to take advantage of channel-based Dolby atmos processing to most of our audio the only way is to play a Dolby atmos original files or provide it a 5.1 or 7.1 files...Since I liked the concept and understand also its limitations I used a secret trick to even take advantage of a 2.1 audio that is available still in most media providers. For example I enjoyed Dolby atmos out of my android phone just by screencasting it to my pc because the “connect” app in windows 10 is based on Mira cast principle and it encodes stereo to Dolby digital plus 5.1 before sending it. Similarly I enjoyed FM radio and youtube in full Dolby atmos by simply watching them in a media container that can encode stereo to basic 5.1. Apps like CyberLink power DVD pro can do that and from there the rest of the upscaling i.e from 5.1 to 7.1.4 is well handled by the Dolby access app. Now that the upscaling feature is lost. Sir most of my movie files are only limited in 5.1 and now its too frustrating to hear them in stereo. It was expected to be mixed to 7.1.4 but it is being downmixed to stereo by this windows 10 spatial sound. I am unable to locate the source of this malfunction. Whether my win 10 PC's spatial sound itself or this Dolby access app’s inbuilt mixer is inactive?
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By the way TX-RZ920 Onkyo is my AV receiver. Now when I play a 5.1 or 7.1 movie and pass it through HDMI cable from my pc, it shows the incoming signal as “stereo” But when I played test tone file for 5.1.4 then it shows the incoming signal as ” Dolby atmos” But when I have played the same 5.1 or 7.1 movies on my pc, 1 week earlier it was been upscaled to full Dolby atmos 7.1.4 regardless of whether it is created in it or not and In my AV receiver it showed as “Dolby Atmos” as the incoming signal. Now that feature is lost. Even when I screencast my android phone to my pc, I used to get full Dolby atmos but now it is not. Also when I used apps like Microsoft connect; Microsoft edge legacy; Netflix ...immediately I have seen the message “Dolby Atmos For Headphones in Use” in the taskbar ( in the case of headphones ) but now it is not... Sir, I am sure that if we doesn’t get that message in the taskbar means we are getting the only stereo as output because I have seen in Dolby developer portal that Dolby access in windows 10 can decode Dolby atmos metadata as well as encode normal surround sound to 7.1.4 provided u need to give 5.1 or 7.1 files for it to do that and if you feed it with 2.1 or 2.0 it just sends it as it is without virtualization which is called as “direct to ears” feature it seems implemented by Dolby itself to support stereo files that are created for binaural headphone mix because atmos mix released in stereo binaural format should not be upscaled since they are not channel based loudspeaker mixes. So if we want to take advantage of channel-based Dolby atmos processing to most of our audio the only way is to play a Dolby atmos original files or provide it a 5.1 or 7.1 files...Since I liked the concept and understand also its limitations I used a secret trick to even take advantage of a 2.1 audio that is available still in most media providers. For example I enjoyed Dolby atmos out of my android phone just by screencasting it to my pc because the “connect” app in windows 10 is based on Mira cast principle and it encodes stereo to Dolby digital plus 5.1 before sending it. Similarly I enjoyed FM radio and youtube in full Dolby atmos by simply watching them in a media container that can encode stereo to basic 5.1. Apps like CyberLink power DVD pro can do that and from there the rest of the upscaling i.e from 5.1 to 7.1.4 is well handled by the Dolby access app. Now that the upscaling feature is lost. Sir most of my movie files are only limited in 5.1 and now its too frustrating to hear them in stereo. It was expected to be mixed to 7.1.4 but it is being downmixed to stereo by this windows 10 spatial sound. I am unable to locate the source of this malfunction. Whether my win 10 PC's spatial sound itself or this Dolby access app’s inbuilt mixer is inactive?
Technical Details :
Continue reading...