World Service podcast bit rates

richard22j at zoho.com richard22j at zoho.com
Mon Oct 2 07:18:43 PDT 2017


From: Vangelis forthnet
Sent: Wednesday, August 16, 2017 2:58 AM

>On Tue Aug 15 12:40:54 BST 2017, I wrote:

>> were limited to dafmed, hafmed and hlsaacmed
>> and a bit rate of 96kbit/s.

> ...


>Then at some point WSR got the "Audio Factory" treament,
>to be more on a par with the rest of the BBC Radio stations,>
>and thus two stream quality variants were created:
>HE-AACv1 at 96kbps/48kHz (*med modes in GiP) and
>HE-AACv1 at 48kbps /48kHz (*low modes in GiP); these
>are equally available to UK/non-UK audiences, i.e.
>if in the UK you can't get > 96kbps...

> ...

>But, returning on topic,

>get_iplayer --type=radio --pid=p05bdb8p -i | FindStr versions =>

>versions:       original,podcast

>get_iplayer --type=radio --pid=p05bdb8p -i | FindStr modes =>

>modes:          original: 
>dafmed1,dafmed2,dafmed3,dafmed4,daflow1,daflow2,daflow
3,daflow4,hafmed1,hafmed2,haflow1,haflow2,hlsaacmed1,hlsaaclow1

>which is consistent with what I wrote earlier...

>But for the "podcast" version (not the MP3 file, this is an .m4a
>file fetched by GiP) it would appear they apply geo-filtering :-(

>verpids:        original: p05bdbfp
>verpids:        podcast: p05c1hf1

>http://open.live.bbc.co.uk/mediaselector/5/select/version/2.0/mediaset/pc/vpid/p05c1hf1

>yields different stream data based on geo-location;
>no signs of dashhigh/dashstd/hlsaacstd over here;
>but then again, who really wants "talk-radio" @320kbps?
>(well, some, like Jim web, do, I think even 96kbps
>is superfluous...)

The thread was about World Service and it is some time since you wrote that. 
It is possible things have changed in the mean time.  For non-World Service 
have you tried hafhigh and hafstd (whether anyone wants it or not)?





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