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Bug #4004

Some recordings have bad sound with some channels

Added by Meindert Oldenburger about 8 years ago. Updated about 8 years ago.

Status:
New
Priority:
Normal
Assignee:
Adam Sutton
Category:
PVR / DVR
Target version:
-
Start date:
2016-10-02
Due date:
% Done:

0%

Estimated time:
Found in version:
4.1-2249
Affected Versions:

Description

The resulting recording has only sound from right channel and the Bass sounds terrible (over boost)

Some facts:
- The recording program is started after a commercial block
- My configuration in Kodi 16.1 is 2.1 sound
- Issue seems related to Bug #2423
- lot of messages: tsfix: transport stream TELETEXT, DTS discontinuity. DTS = 2534302969, last = 2534302969

Log bad recording1:
Sep 29 20:24:30 core2 tvheadend3062: dvr: "Expeditie Robinson" on "RTL 5 HD" recorder starting
Sep 29 20:24:30 core2 tvheadend3062: mpegts: 11856V in Astra 3 NL HD - tuning on TurboSight TBS 6981 DVBS/S2 frontend : DVB-S #4
Sep 29 20:24:30 core2 tvheadend3062: capmt: tvheadend: Starting CAPMT server for service "RTL5 HD" on adapter 5
Sep 29 20:24:30 core2 tvheadend3062: subscription: 0097: "DVR: Expeditie Robinson" subscribing on channel "RTL 5 HD", weight: 300, adapter: "TurboSight TBS 6981 DVBS/S
2 frontend : DVB-S #4", network: "Astra 3 NL HD", mux: "11856V", provider: "M7 Group", service: "RTL5 HD", profile="matroska"
Sep 29 20:24:32 core2 tvheadend3062: tsfix: The timediff for TELETEXT is big (2566547805), using current dts
Sep 29 20:24:34 core2 tvheadend3062: tsfix: transport stream TELETEXT, DTS discontinuity. DTS = 216346006, last = 216347806
Sep 29 20:24:34 core2 tvheadend3062: tsfix: transport stream TELETEXT, DTS discontinuity. DTS = 216353206, last = 216360406
....
Sep 29 20:25:00 core2 tvheadend3062: dvr: /data3/tvheadend/Expeditie Robinson2016-09-2920-30.mkv from adapter: "TurboSight TBS 6981 DVBS/S2 frontend : DVB-S #4", netwo
rk: "Astra 3 NL HD", mux: "11856V", provider: "M7 Group", service: "RTL5 HD"
Sep 29 20:25:00 core2 tvheadend3062: dvr: # type lang resolution aspect ratio sample rate channels
Sep 29 20:25:00 core2 tvheadend3062: dvr: 1 H264 1920x1080 16:9
Sep 29 20:25:00 core2 tvheadend3062: dvr: 2 AC3 dut 48000 5.1
Sep 29 20:25:00 core2 tvheadend3062: tsfix: transport stream TELETEXT, DTS discontinuity. DTS = 218722006, last = 218736406
Sep 29 20:25:02 core2 tvheadend3062: tsfix: transport stream TELETEXT, DTS discontinuity. DTS = 218822806, last = 218837206

Log bad recording2:
Oct 1 19:24:30 core2 tvheadend3042: mpegts: 11856V in Astra 3 NL HD - tuning on TurboSight TBS 6981 DVBS/S2 frontend : DVB-S #3
Oct 1 19:24:30 core2 tvheadend3042: capmt: tvheadend: Starting CAPMT server for service "RTL4 HD" on adapter 4
Oct 1 19:24:30 core2 tvheadend3042: subscription: 00B6: "DVR: RTL Nieuws" subscribing on channel "RTL 4 HD", weight: 300, adapter: "TurboSight TBS 6981 DVBS/S2 fronte
nd : DVB-S #3", network: "Astra 3 NL HD", mux: "11856V", provider: "M7 Group", service: "RTL4 HD", profile="matroska"
Oct 1 19:24:31 core2 tvheadend3042: tsfix: The timediff for TELETEXT is big (2534306569), using current dts
Oct 1 19:24:31 core2 tvheadend3042: tsfix: transport stream TELETEXT, DTS discontinuity. DTS = 0, last = 2534302969
Oct 1 19:25:00 core2 tvheadend3042: dvr: /data3/tvheadend/RTL Nieuws2016-10-0119-30.mkv from adapter: "TurboSight TBS 6981 DVBS/S2 frontend : DVB-S #3", network: "Ast
ra 3 NL HD", mux: "11856V", provider: "M7 Group", service: "RTL4 HD"
Oct 1 19:25:00 core2 tvheadend3042: dvr: # type lang resolution aspect ratio sample rate channels
Oct 1 19:25:00 core2 tvheadend3042: dvr: 1 H264 1920x1080 16:9
Oct 1 19:25:00 core2 tvheadend3042: dvr: 2 AC3 dut 48000 5.1
Oct 1 19:26:05 core2 systemd1: Time has been changed
Oct 1 19:26:05 core2 systemd1: apt-daily.timer: Adding 2h 47min 57.126004s random time.

History

#1

Updated by Meindert Oldenburger about 8 years ago

The problem is not only the recording but also LiveTV

#2

Updated by Meindert Oldenburger about 8 years ago

Probably a issue with kodi, bud I'm nut sure.

I activated audio pass-through and that improves the quality, but developers of kodi advise me to not use audio pass-through for tv but multichannel PCM ?!

#3

Updated by Jaroslav Kysela about 8 years ago

Could you test the recordings in other program like vlc ? It appears like a decoder issue.

#4

Updated by Meindert Oldenburger about 8 years ago

When I play with the options in Kodi I get better result, also with recordings that sound bad initially.

I have a 2.1 AVR system but when I select 2.1 channels in Kodi instead of 2.0 the sound is getting very bad.

Please close the issue here and I wil try to get my point in the kodi forum, but I have no idea whats causes this problem.

#5

Updated by saen acro about 8 years ago

There is not 2.1 sound standard
usually there is Stereo(2) Quadro(4) Surround (5.1)

2.1 channels is stereo with cuttet low moved to Woofer.
Use DSP processor in Kodi but from TVH use Stereo.

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