[cma-l] Chronicle ROT Logger Beta
Tony Bailey
ravensound at pilgrimsound.co.uk
Sat Mar 4 08:44:18 GMT 2017
Hello all,
I've no idea what this thread is all about - just one item caught my
eye: file lengths - I've been playing around with an audio chunk upload
using arecord with fixed file lengths and the mp3 files are always the
same length, the ogg files vary according to content however.
Tony Bailey
On 03/03/17 19:58, mail wrote:
> Hi James,
>
> Thank you! That's really kind of you :D
>
> With regard to #1:
> Being able to show a projected file size for a file of a given length,
> channel count, bitrate, etc is fairly straightforward for uncompressed
> files (such as WAV). The default settings (16-bit, 44.1kHz, stereo)
> recording for an hour will always produce a file of ~605MB. Compressed
> formats, however, are harder to predict given that the compression
> ratio overall depends on the content of the audio. Still, it shouldn't
> vary too much and a rough average figure should be sufficient - just
> not *perfectly* accurate.
> See https://github.com/calmcl1/chronicle/issues/22.
>
> #2
> Not deleting archives automatically is fine (see
> https://github.com/calmcl1/chronicle/issues/21) if you want to manage
> your archives directly, but a direct upload to S3 will take a little
> work, as one can't *stream* directly to S3 and must instead upload
> short chunks. Not impossible, though :)
>
> Unfortunately, a direct Glacier upload isn't possible as one must know
> the *exact* file size before starting - you'd have to wait for it to
> complete and then upload.
>
> Cold-storage/nearline archiving like this would be better implemented
> by logging to a given directory and then running an automated
> hourly/overnight backup operation to Glacier. I've actually got some
> software for that, too, called Cupo (github.com/calmcl1/cupo-backup
> <http://github.com/calmcl1/cupo-backup>), but that's still quite beta
> (though we do use it for our Myriad database backups at HCR).
>
> Does this help, or have I missed the point entirely?
>
> Cal
>
> m: 07426 437449 e:mail at callum-mclean.co.uk w:callum-mclean.co.uk <http://callum-mclean.co.uk/>
>
>
> ---- On Fri, 03 Mar 2017 08:08:00 +0000 *James Cridland
> <james at cridland.net>* wrote ----
>
> This is nice - have tweeted it and it'll be in my newsletter.
>
> Suggestion #1 is to make it clear how much space this will take on
> a local drive.
>
> Suggestion #2 is to archive to Amazon S3 or similar (or point to a
> cron job that will do this for you). Please don't delete archives
> - instead, Amazon Glacier will be a really cheap place to store
> every single second of your radio station that was ever broadcast.
> Imagine how awesome that would be.
>
> J
>
>
> On Thu., 2 Mar. 2017, 19:19 Canalside's The Thread,
> <office at thethread.org.uk <mailto:office at thethread.org.uk>> wrote:
>
> --
>
>
> http://james.crid.land - get my weekly newsletter
> https://media.info - the media information website
>
>
> Tel: +61 447 692 743 | UK: 020 7100 1811 ('till midday)|@jamescridland
>
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> I'll get our tekky guys Simon and Blackers onto this Cal
> ...... might be worth a dabble and a play. I think they've got
> bored of our Train set now and need a new Toy to tinker with
> J LOL
>
>
> Nick H Dumpty / Head Bottle Washer
>
> Canalside Calamity Radio
>
>
> *From:*cma-l-bounces at mailman.commedia.org.uk
> <mailto:cma-l-bounces at mailman.commedia.org.uk>
> [mailto:cma-l-bounces at mailman.commedia.org.uk
> <mailto:cma-l-bounces at mailman.commedia.org.uk>] *On Behalf Of
> *Cal McLean
> *Sent:* 01 March 2017 22:55
>
>
> *To:* The Community Media Association Discussion List
> <cma-l at mailman.commedia.org.uk
> <mailto:cma-l at mailman.commedia.org.uk>>
> *Subject:* [cma-l] Chronicle ROT Logger Beta
>
>
>
> Hi all,
>
> Forgive the shameless-self-promotion post - I was wondering if
> anyone in the CMA might be willing to try out a bit of
> software that's currently in beta (though stable enough for
> production use)?
>
> As part of Halton Community Radio's upgrade, I ended up
> writing an ROT logger, since none of the options available to
> use particularly seemed to be good value for what we needed.
> It's now running on a hand-built computer in our production
> environment!
>
> However, I always feel with the bits of software that I write
> that if they can be useful to me, perhaps they can be useful
> to other people. If anybody might want to play-test a bit of
> logging software, it's available at:
>
> <https://calmcl1.github.io/projects/chronicle>https://calmcl1.github.io/projects/chronicle
>
> The link above has much more information about the state of
> the software, how it came about and what I'm intending to do
> with it. It's all open source on GitHub, so developer types
> are free to modify and play as they wish :)
>
>
> Cal McLean
>
> *Head Technician
> *Halton Community Radio
>
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>
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>
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>
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--
Local Reports at http://www.ravensound.pilgrimsound.co.uk
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