Choppy dvb-t video and audio
 

Hi

I've recently moved over from XP to Ubuntu. I have a Visionplus PCI DVB-T card. This worked fine on XP.

Since moving to Ubuntu the only channel that plays fine is SBS (Australia) the others are all blocky/choppy video and audio. ABC seems to be the worst. I've scanned the channels and the values in my channels.conf file appear correct.

I've used Kaffeine to play DVB and record using Webscheduler (which uses Zapdvb).

Any ideas would be appreciated. My channels.conf file is below.

SBS:543500000:INVERSION_AUTO:BANDWIDTH_7_MHZ:FEC_2_3:FEC_1_2:QAM_64:TRANSMISSION
_MODE_8K:GUARD_INTERVAL_1_8:HIERARCHY_NONE:161:81:849
SBS 2:543500000:INVERSION_AUTO:BANDWIDTH_7_MHZ:FEC_2_3:FEC_1_2:QAM_64:TRANSMISSION_M
ODE_8K:GUARD_INTERVAL_1_8:HIERARCHY_NONE:162:83:850
SBS 3:543500000:INVERSION_AUTO:BANDWIDTH_7_MHZ:FEC_2_3:FEC_1_2:QAM_64:TRANSMISSION_M
ODE_8K:GUARD_INTERVAL_1_8:HIERARCHY_NONE:161:81:851
SBS 4:543500000:INVERSION_AUTO:BANDWIDTH_7_MHZ:FEC_2_3:FEC_1_2:QAM_64:TRANSMISSION_M
ODE_8K:GUARD_INTERVAL_1_8:HIERARCHY_NONE:161:81:852
SBS HD:543500000:INVERSION_AUTO:BANDWIDTH_7_MHZ:FEC_2_3:FEC_1_2:QAM_64:TRANSMISSION_
MODE_8K:GUARD_INTERVAL_1_8:HIERARCHY_NONE:102:103:853
SBS Radio 1:543500000:INVERSION_AUTO:BANDWIDTH_7_MHZ:FEC_2_3:FEC_1_2:QAM_64:TRANSMISSION_M
ODE_8K:GUARD_INTERVAL_1_8:HIERARCHY_NONE:0:201:862
SBS Radio 2:543500000:INVERSION_AUTO:BANDWIDTH_7_MHZ:FEC_2_3:FEC_1_2:QAM_64:TRANSMISSION_M
ODE_8K:GUARD_INTERVAL_1_8:HIERARCHY_NONE:0:202:863
ABC HDTV:205625000:INVERSION_AUTO:BANDWIDTH_7_MHZ:FEC_3_4:FEC_3_4:QAM_64:TRANSMISSIO
N_MODE_8K:GUARD_INTERVAL_1_16:HIERARCHY_NONE:2314:2315:528
ABC1:205625000:INVERSION_AUTO:BANDWIDTH_7_MHZ:FEC_3_4:FEC_3_4:QAM_64:TRANSMISSIO
N_MODE_8K:GUARD_INTERVAL_1_16:HIERARCHY_NONE:512:650:529
ABC2:205625000:INVERSION_AUTO:BANDWIDTH_7_MHZ:FEC_3_4:FEC_3_4:QAM_64:TRANSMISSIO
N_MODE_8K:GUARD_INTERVAL_1_16:HIERARCHY_NONE:2307:2308:530
ABC3:205625000:INVERSION_AUTO:BANDWIDTH_7_MHZ:FEC_3_4:FEC_3_4:QAM_64:TRANSMISSIO
N_MODE_8K:GUARD_INTERVAL_1_16:HIERARCHY_NONE:512:650:532
ABC DiG Radio:205625000:INVERSION_AUTO:BANDWIDTH_7_MHZ:FEC_3_4:FEC_3_4:QAM_64:TRANSMISSI
ON_MODE_8K:GUARD_INTERVAL_1_16:HIERARCHY_NONE:0:2317:534
ABC DiG Jazz:205625000:INVERSION_AUTO:BANDWIDTH_7_MHZ:FEC_3_4:FEC_3_4:QAM_64:TRANSMISSIO
N_MODE_8K:GUARD_INTERVAL_1_16:HIERARCHY_NONE:0:2318:535
PRIME Canberra:226500000:INVERSION_AUTO:BANDWIDTH_7_MHZ:FEC_3_4:FEC_3_4:QAM_64:TRANSMI
SSION_MODE_8K:GUARD_INTERVAL_1_16:HIERARCHY_NONE:2740:2741:2374
PRIME HD:226500000:INVERSION_AUTO:BANDWIDTH_7_MHZ:FEC_3_4:FEC_3_4:QAM_64:TRANSMISSION_
MODE_8K:GUARD_INTERVAL_1_16:HIERARCHY_NONE:0:0:2400
PRIME View 1:226500000:INVERSION_AUTO:BANDWIDTH_7_MHZ:FEC_3_4:FEC_3_4:QAM_64:TRANSMISSION_M
ODE_8K:GUARD_INTERVAL_1_16:HIERARCHY_NONE:0:0:2401
PRIME View 2:226500000:INVERSION_AUTO:BANDWIDTH_7_MHZ:FEC_3_4:FEC_3_4:QAM_64:TRANSMISSION_M
ODE_8K:GUARD_INTERVAL_1_16:HIERARCHY_NONE:0:0:2402
PRIME View 3:226500000:INVERSION_AUTO:BANDWIDTH_7_MHZ:FEC_3_4:FEC_3_4:QAM_64:TRANSMISSION_M
ODE_8K:GUARD_INTERVAL_1_16:HIERARCHY_NONE:0:0:2403
WIN TV Canberra:219500000:INVERSION_AUTO:BANDWIDTH_7_MHZ:FEC_3_4:FEC_3_4:QAM_64:TRANSMI
SSION_MODE_8K:GUARD_INTERVAL_1_16:HIERARCHY_NONE:33:36:1
WIN TV HD:219500000:INVERSION_AUTO:BANDWIDTH_7_MHZ:FEC_3_4:FEC_3_4:QAM_64:TRANSMISSION_
MODE_8K:GUARD_INTERVAL_1_16:HIERARCHY_NONE:129:8001:10
SC10 Canberra:177500000:INVERSION_AUTO:BANDWIDTH_7_MHZ:FEC_3_4:FEC_1_2:QAM_64:TRANSMI
SSION_MODE_8K:GUARD_INTERVAL_1_16:HIERARCHY_NONE:353:354:2055
SC10 HD:177500000:INVERSION_AUTO:BANDWIDTH_7_MHZ:FEC_3_4:FEC_1_2:QAM_64:TRANSMISSION_
MODE_8K:GUARD_INTERVAL_1_16:HIERARCHY_NONE:1711:1712:2087
SC Ten:177500000:INVERSION_AUTO:BANDWIDTH_7_MHZ:FEC_3_4:FEC_1_2:QAM_64:TRANSMISSION
_MODE_8K:GUARD_INTERVAL_1_16:HIERARCHY_NONE:353:354:2119

Noticed that my signal strength is only low 30s so I suspect that's my underlying problem. Some how it's deterioted.