For a fast conversion to MP2 using the 'copy' option with ffmpeg will keep the bitrate. I don't use ffmpeg directly but instead use the GUI WinFF which includes ffmpeg and a lame convertor for MP3. WinFF is also capable of batch processing.
With WinFF a useful preset to add for MP2 is:
-vn -acodec copy
This preset not only demuxes the audio track from a radio recording but will also strip out the video if it's a TV recording.
For MP3 conversion WinFF can be used directly on the TS files. WinFF has a preset for conversion to MP3 (under "Convert to" select "Audio" and then under "Preset" select "MP3"). The preset is set to output 160KB. It is easy to override this by entering a one off value in the Audio bitrate field under Additional Options, or the preset can be editted for a more permenant customised bitrate.
The overall design of the GUI and how it is initially displayed makes its basic use very simple.
If there is a need to permanently change a default of a preset (e.g. MP3's default bitrate of 160KB to say 256KB or 96KB) then with very little digging it is not very difficult to change the default.
| Tue 5 Jul 2011 17:58:31
#6 |