Digital TV Radio scanning and measurement



MPEG4 HD transmitted channel comparison


2 types of transmissions


We are going to compare the broadcast of 2 HD channels with providers who took different choices.
Channels : France3 and BFMTV.
Broascast details : resolution of 1440x1080 with 5Mb/s bitrate and resolution of 1920x1080 with more than 10Mb/s bitrate.

Snapshots


You can take a look on these pictures. (click on picture to see full HD size)

France 3 Snapshots



BFMTV Snapshots



Comparison


Even if the background of the source picture is not HD, the templates and logos of the channels are in HD...
If we enlarge the logo of each channel for the comparison.

Logo de France 3 HD



Resolution 1920x1080 bitrate > 10Mb/s


Resolution 1440x1080 bitrate 5Mb/s


Analyse

Logo de BFMTV HD



Resolution 1920x1080 bitrate > 10Mb/s


Resolution 1440x1080 bitrate 5Mb/s


Analyse

Conclusion


Even if we can understand that some provider want to decrease their bitrates,
there is no miracle, only a correct bitrate with the good resolution give a broadcast with few MPEG issue.