hello a further investigation into the 1498 video files gives the following information.
if a video file is 50 fps the audio is 125kbps. if a video file is 25 fps the audio is nearly always 93 kbps 1303 10374 193893 bbc_prom_debug_eq_93 150 1212 20833 bbc_prom_debug_gt_93 45 429 6502 bbc_prom_debug_lt_93 1303 files with 93kbps & 25 fps 150 files with 125kbps & 50 fps 45 files with less than 93kbps & 25 fps total 1498 video files. 93kbps David_Attenboroughs_Natural_Curiosities_Series_1_Shorts, Father Brown Series 1, 2, 3 &4 Gardeners_World_2015 the 150 video files with 125kbps are from many different genre. Antiques Roadshow, Panorama, The_Pendle_Witch_Child, In_the_Night_Garden_Series_1, In_the_Night_Garden_Series_1, Egyptian_Journeys_with_Dan_Cruickshank as a comparison, BBC purchased on iTunes are 2 audio MPEG-4 AAC LC, 3485.056 secs, 160 kbps, 48000 Hz 1 video H264 High@4, 3485.000 secs, 5108 kbps, 1918x1076 @ 25.000000 fps Name: Attenborough at 90 Sort Name: Attenborough at 90 Artist: Attenborough at 90 Sort Artist: Attenborough at 90 Release Date: 2016-05-08T07:00:00Z Album: Attenborough at 90 Sort Album: Attenborough at 90 Track: 1 of 1 Disk: 1 of 1 Genre: Non-Fiction Part of Compilation: no Part of Gapless Album: no Cover Art pieces: 1 Album Artist: Attenborough at 90 Copyright: © 2016 BBC Content Rating: None HD Video: yes Media Type: TV Show TV Show: Attenborough at 90 TV Network: BBC1 TV Episode Number: 1 On Sun, Sep 11, 2016 at 12:10 PM, Jim web <w...@audiomisc.co.uk> wrote: > In article > <CANGN4UN_ub+qLMBpFN=k2t5mfmurosf+v7yrcmfyswdduxn...@mail.gmail.com>, > Shevek <she...@shevek.co.uk> wrote: > >> As others have noted, the usual audio bitrate for an HD TV download is >> ~96kbps with the Proms programmes being somewhat of an anomaly at >> ~128kbps > > I just checked and this confirms what I'd thought. 125k audio isn't solely > for Proms. It is, I think, the standard for the hvfhd mode. > > e.g. the version of "All about the country bus" which I fetched using this > mode has 125k audio. > > And if I use an older hls mode that gets me the 25fps proms HDTV versions, > they are about 93 kbps audio. > > Jim > > -- > Electronics http://www.st-and.ac.uk/~www_pa/Scots_Guide/intro/electron.htm > Armstrong Audio http://www.audiomisc.co.uk/Armstrong/armstrong.html > Audio Misc http://www.audiomisc.co.uk/index.html > > > _______________________________________________ > get_iplayer mailing list > get_iplayer@lists.infradead.org > http://lists.infradead.org/mailman/listinfo/get_iplayer -- terry l. ridder ><> _______________________________________________ get_iplayer mailing list get_iplayer@lists.infradead.org http://lists.infradead.org/mailman/listinfo/get_iplayer