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I want to share some information for your debugging. This is related with max volume level in volume table. If i change max value(-210) of DEFAULT_DEVICE_CATEGORY_SPEAKER_VOLUME_CURVE set to original value (-820), i can hear audio of VOD. |
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Hi Wooshin, This issue is caused by a patch from Synaptics in jira SKBSBALT-140. (https://synaextjira.atlassian.net/browse/SKBSBALT-140) You can check the patch from the attached picture. While using -820, the inputted parameter "left" will be 0.389046. It could be processed by the patch. While using -210, the inputted parameter "left" will be 0.785236. It is out of range and a default 0 will be used for volume. That's why there is no sound. We have already reopened jira SKBSBALT-140 and reported this issue. 1645759225480.jpg (192,510 bytes) |
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Hi Bcan, Can you check below code ? #if 1 //SKBSBALT-140 left=(uint)(left*10000); if (left>=3800 && left<4000)volume=24; //btv32 -0.389046 =====> if (left>=3800)volume=24; if (left>=3000 && left<3800)volume=23; //btv31 -0.315865 if (left>=2650 && left<3000)volume=22; //btv30 -0.270397 Thanks. |
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Hi Wooshin, We have some findings about this issue. 1. The patch of SKBSBALT-140 is only workable for HLSPlayer. That means the volume of RTSPPlayer won't be affected by the patch. It is unnecessary to distinguish RTSPPlayer and HLSPlayer in this problem. 2. While playing HLS content and being "NOT" passthrough, there will be no audio output in volume level 29/20/31/32. Because the parameter left is still out of the range of patch SKBSBALT-140. If the modification as you mentioned above is applied, 1. the audio will be OK in HLS + passthrough. 2. the vol 29/30/31/32 will be the same in HLS + non-passthrough. Our suggestion is to adjust patch SKBSBALT-140 for all volume levels and get better volume distribution. ps. We also updated this information in Synaptics jira SKBSBALT-140. |
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Hi Wooshin, I think the problem is caused by the patch of SKBSBALT-140 is based on old volume table to remapping the UI volume(0~32) to HLS volume(0~24). The patch of SKBSBALT-140 is applied on 2021/May. But Jerry change the volume table based on speaker measurement on 2021/Aug. So, the patch of SKBSBALT-140 will not correctly mapping UI Volume to HLS volume. I list the HLS volume and UI vol level for your reference. 1. HLS volume and UI Vol mapping based on 2021/Aug volume table. As you can see, UI Vol leve 32~29, the HLS volume=0. Please note, the value of left is related to volume table. Synaptic's patch is based on old volume table to map UI Vol 32 level to 24 level. So as you can see, it is not mapping correctly because the patch is designed based on old volume table. left=7852.000000 volume=0 //UI Vol Level 32 left=6194.000000 volume=0 //UI Vol Level 31 left=5188.000000 volume=0 //UI Vol Level 30 left=4345.000000 volume=0 //UI Vol Level 29 left=3639.000000 volume=23 //UI Vol Level 28 left=3044.000000 volume=23 //UI Vol Level 27 left=2549.000000 volume=21 //UI Vol Level 26 left=2135.000000 volume=20 //UI Vol Level 25 left=1788.000000 volume=19 //UI Vol Level 24 left=1410.000000 volume=18 //UI Vol Level 23 left=1141.000000 volume=16 //UI Vol Level 22 left=989.000000 volume=15 //UI Vol Level 21 left=827.000000 volume=14 //UI Vol Level 20 left=693.000000 volume=13 //UI Vol Level 19 left=580.000000 volume=12 //UI Vol Level 18 left=486.000000 volume=11 //UI Vol Level 17 left=406.000000 volume=11 //UI Vol Level 16 left=321.000000 volume=9 //UI Vol Level 15 left=269.000000 volume=8 //UI Vol Level 14 left=225.000000 volume=7 //UI Vol Level 13 left=188.000000 volume=6 //UI Vol Level 12 left=157.000000 volume=4 //UI Vol Level 11 left=132.000000 volume=4 //UI Vol Level 10 left=110.000000 volume=4 //UI Vol Level 9 left=92.000000 volume=3 //UI Vol Level 8 left=73.000000 volume=3 //UI Vol Level 7 left=61.000000 volume=3 //UI Vol Level 6 left=51.000000 volume=2 //UI Vol Level 5 left=42.000000 volume=2 //UI Vol Level 4 left=35.000000 volume=1 //UI Vol Level 3 left=30.000000 volume=1 //UI Vol Level 2 left=25.000000 volume=1 //UI Vol Level 1 left=0.000000 volume=0 //UI Vol Level 0 2. HLS volume and UI Vol mapping based on 2021/May volume table. As you can see, UI Vol 32 level correctly mapping to 24 HLS volume. left=3890.000000 volume=24 //UI Vol Level 32 left=3158.000000 volume=23 //UI Vol Level 31 left=2703.000000 volume=22 //UI Vol Level 30 left=2312.000000 volume=21 //UI Vol Level 29 left=1976.000000 volume=20 //UI Vol Level 28 left=1690.000000 volume=19 //UI Vol Level 27 left=1447.000000 volume=18 //UI Vol Level 26 left=1237.000000 volume=17 //UI Vol Level 25 left=1058.000000 volume=16 //UI Vol Level 24 left=859.000000 volume=14 //UI Vol Level 23 left=734.000000 volume=13 //UI Vol Level 22 left=628.000000 volume=13 //UI Vol Level 21 left=537.000000 volume=12 //UI Vol Level 20 left=459.000000 volume=11 //UI Vol Level 19 left=393.000000 volume=10 //UI Vol Level 18 left=336.000000 volume=9 //UI Vol Level 17 left=287.000000 volume=8 //UI Vol Level 16 left=233.000000 volume=7 //UI Vol Level 15 left=199.000000 volume=6 //UI Vol Level 14 left=170.000000 volume=5 //UI Vol Level 13 left=146.000000 volume=4 //UI Vol Level 12 left=125.000000 volume=4 //UI Vol Level 11 left=106.000000 volume=4 //UI ol Level 10 left=91.000000 volume=3 //UI Vol Level 9 left=78.000000 volume=3 //UI Vol Level 8 left=63.000000 volume=3 //UI Vol Level 7 left=54.000000 volume=2 //UI Vol Level 6 left=46.000000 volume=2 //UI Vol Level 5 left=39.000000 volume=2 //UI Vol Level 4 left=34.000000 volume=1 //UI Vol Level 3 left=29.000000 volume=1 //UI Vol Level 2 left=24.000000 volume=1 //UI Vol Level 1 left=0.000000 volume=0 //UI Vol Level 0 Please also note, the passthrough mode and non-passthrough mode for HLS use the same volume table. Just like Bcan said, the conclusion for solving this issue is to let Synaptics readjusts the patch based on current volume table. |
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Hi River, Patch is released by Synaptics. Please apply it. https://jira.skbroadband.com/plugins/servlet/jeditor_file_provider?imgId=ckupload202203046843807324164369359&fileName=0001-SKBSBALT-140-adjust-volume-table29_32level.patch thanks. |
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Hi Wooshin, patch is committed to bitbucket. |
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Fixed by applying Synpatics's patch to adjust UI Vol 32~29 for VOID HLS. /vendor/synaptics/vsxxx/ commit 4ca2f61ec34e0028f23e300e5420065aadb17a9b (HEAD) Author: [시냅틱스] 박재민 <kail.park@synaptics.com> Date: Fri Mar 4 12:10:55 2022 +0900 adjust volume table29_32level |
- yk.jung ( (ALTech) Younkwang Jung ) developer
