http://www.bbc.co.uk/blogs/radiolabs/2009/03/coyopas_guts.shtml en-gb 30 Fri 08 Jan 2010 12:22:54 GMT+1 A feed of user comments from the page found at http://www.bbc.co.uk/blogs/radiolabs/2009/03/coyopas_guts.shtml http://www.bbc.co.uk/blogs/radiolabs/2009/03/coyopas_guts.shtml?page=17#comment8 @dumbledad - I think in this context, linear audio means uncompressed (in terms of bitrate, not loudness). Thu 23 Apr 2009 11:52:03 GMT+1 http://www.bbc.co.uk/blogs/radiolabs/2009/03/coyopas_guts.shtml?page=15#comment7 I love this kind of post - it's great when the engineering detail is talked about in the open. One question though (which may show my ignorance). What does "keeping digital audio linear all the way to the encoder" mean? Linear in what sense? Wed 22 Apr 2009 14:06:04 GMT+1 http://www.bbc.co.uk/blogs/radiolabs/2009/03/coyopas_guts.shtml?page=13#comment6 "Book of the Week isn't quite the same when the opening episode just isn't available in "Listen Again""Actually, I note that a substitute is presented at: http://www.bbc.co.uk/programmes/b006qftkHowever, I'm not convinced that Episode 3 of "The Decisive Moment" from 4th March is an entirely acceptable substitute.I can cope with the changes to R4's website style but had rather hoped that content wouldn't be trashed along the way. Sun 12 Apr 2009 12:23:27 GMT+1 http://www.bbc.co.uk/blogs/radiolabs/2009/03/coyopas_guts.shtml?page=11#comment5 "how come days of radio content go missing on the iPhone?"The incidence of this seems much higher of late.Wednesday 1st had some bits missing, Friday 3rd April had larger chunks missing and Monday 6th seems little better.It's not just the iPhone encodings. Book of the Week isn't quite the same when the opening episode just isn't available in "Listen Again" (at a time when there are "3 days left to listen" for Episode 2)! Even unofficial ra files don't seem to be present.Given that "Producers can schedule their radio programmes to be available for Listen Again, by selecting the times/days and repeat patterns" it seems that it can all go wrong due to human error/carelessness at a very early stage with no obvious feedback mechanism for frustrated listeners when stuff is simply missing. Sat 11 Apr 2009 13:03:59 GMT+1 http://www.bbc.co.uk/blogs/radiolabs/2009/03/coyopas_guts.shtml?page=8#comment4 Is this used for archiving as well, i.e. beyond the 7 days... Wed 01 Apr 2009 12:44:42 GMT+1 http://www.bbc.co.uk/blogs/radiolabs/2009/03/coyopas_guts.shtml?page=6#comment3 It's great to hear it's a serious resilient broadcast system - I'm sure the day will come when your on-line delivery becomes more important than your traditional broadcast delivery.However, if there's so much fault resilience, how come days of radio content go missing on the iPhone?Don't believe me? Try listening on-demand to anything from Friday. I've only tried Radio 4, but several things just aren't there: Feedback, Something Understood... I had to visit my PC(!) to catch the last two episodes of book of the week (from the foothills).Is Coyopa responsible for this? Or does it go somewhere else?btw, the iPlayer on-demand Radio 4 audio sounds quite rough on the iPhone, whereas Radio 3 programmes sound good (sometimes very good), so it's not faulty hardware at this end.Cheers,David. Wed 25 Mar 2009 15:15:26 GMT+1 http://www.bbc.co.uk/blogs/radiolabs/2009/03/coyopas_guts.shtml?page=4#comment2 Interesting to read the inner workings of your (fairly heavy-duty) encoding systems. Looks like you're ready to cope with a fairly major throughput!Never heard of AES3 before, but I was at home with the other TLAs :) Wed 25 Mar 2009 00:20:54 GMT+1 http://www.bbc.co.uk/blogs/radiolabs/2009/03/coyopas_guts.shtml?page=2#comment1 I'd be interested in the bitrates selected for each channel/programme - is this information published anywhere? How were the various bit rates selected?Also, the post infers that the bit rate might vary between programme types, e.g. 128kbps for music and 64kbps for news bulletins on the same channel. Is this the case? Tue 24 Mar 2009 08:20:10 GMT+1 http://www.bbc.co.uk/blogs/radiolabs/2009/03/coyopas_guts.shtml?page=0#comment0 This is all well & good but all I want is 128kbit/s aac stream or above for BBC Local radio & other stations too. Radio 2 is 128k aac and I want the others to be too. I ask is this likely to happen in 2009? Tue 24 Mar 2009 02:28:41 GMT+1