Nick_G wrote: 
> I can listen to the 320 k HLS streams on the iPad here via Tune In by
> going to More Information>Choose Stream>320 k HLS (2 listed for some
> reason). Otherwise it defaults to the 128 k HLS stream which is delayed
> slightly compared to the 320 k version.
> 
> Regards,
> Nick

Interesting - the android TuneIn app also offers the 2 320kbps HLS
options, plus all the other bitrates in HLS, and the 320kbps aac
shoutcast radio 3 stream (which it declares as only 83% reliable...). So
the BBC iPlayer apps only provide 128kbps, but 3rd party apps give the
higher bit rates. The 2x 320kbps I presume are the two different CDNs,
/ak/ and /llnw/ URLs.

The stupid thing here is that the official apps use the 'mediaselector'
interface, which automatically chooses and switches about between the
two CDNs to balance the load - but the mediaselector doesn't appear to
ever list the high bitrate streams. Tunein are using the direct URL to
the high bitrate streams, so leave it up to you to choose the CDN - not
ideal for load balancing or convenience. I wonder if Tunein only know
about and are providing the high bitrate  hls streams because of the
'reveal' that happened on this forum on 13th Feb?


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