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Programmable Recorders?

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Old Sunday 1st December 2019, 08:27   #1
Dave Boyle
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Programmable Recorders?

Does anybody know if there's any decent quality recorders which you can set to come on at a certain time & record for a set duration?

I work a lot with seabirds & would like to be able to sometimes set a recorder up during the day to come on for a few hours at night, maybe for a few nights - the New Zealand Department of Conservation makes Audio Recording Devices which do the job perfectly, I think you can get about 100 hours recording from 4 AAs & can have two recording periods programmed - but they're not brilliant quality recordings & I was hoping there might be something better out there

Thanks in advance
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Old Monday 2nd December 2019, 20:31   #2
Fat Paul Scholes
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Audiomoth might be a decent solution for you?

https://docs.wixstatic.com/ugd/d9770...99767a56e6.pdf
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Old Tuesday 3rd December 2019, 11:32   #3
Ross McGregor
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What's your budget? A common device used for this type of work in acoustic research is the SM4 (Song Meter 4):
https://www.wildlifeacoustics.com/pr...song-meter-sm4
But they are not cheap at 900:
https://www.nhbs.com/song-meter-sm4-acoustic-recorder
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Old Tuesday 3rd December 2019, 18:48   #4
Dave Boyle
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Thanks for the replies

I've got a couple of the DOC AR4s which do the same job as the Audiomoth & Songmeter - they're great for surveying & finding things in new areas but the quality of the recordings, at least the DOC AR4s, is good but not fantastic.

I've got an Olymus LS11 which is starting to show its age & was hoping one of the Zooms or Tascams would be programmable to get better quality recordings. I do sometimes just leave the LS11 out recording all night but most of the areas I'm looking at are 1.5-2 hour walk away so I can't get back every day & I only get one night's recording & quite often the birds don't come in that night or if they do they don't make any noise!
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Old Wednesday 4th December 2019, 10:49   #5
iveljay
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Tascams etc., tend to be optimised for the music and news recording industries, you may find that people in the surveillance industry can come up with something. Alternatively the Rasberry Pi enthusiasts may be able to help.

Last edited by iveljay : Wednesday 4th December 2019 at 10:54.
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Old Saturday 7th December 2019, 06:32   #6
Dave Boyle
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Thanks for that, I'll look in to it!
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Old Tuesday 10th December 2019, 21:46   #7
jring
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Hi,

Tascam recorders from the cheap and cheerful DR05X on can run on USB power and have an auto recording feature which will start a new recording if the noise level is above a configurable volume and stop when it stays below that for 5s.

So get one of those, an SD card and a big USB power bank... or even a solar panel with USB out to charge the powerbank over the day.

The same goes for all ZOOM recorders too... the smallest one is rated to go 10h at CD quality on a pair of AAAs and comes with a 5v 1A USB power supply and will probably take quite a bit less during most of the time of your use case with display of and not actually recording but just listening.

Joachim

Last edited by jring : Tuesday 10th December 2019 at 23:20. Reason: added zoom info
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Old Friday 13th December 2019, 07:38   #8
Dave Boyle
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Thanks for that Joachim, that might be a good solution!
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Old Tuesday 17th December 2019, 12:00   #9
jring
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Quote:
Originally Posted by Dave Boyle View Post
Thanks for that Joachim, that might be a good solution!
Glad to help, let us know how it works out!
Actually one could also use the LS11 with a USB power pack (it also has a function to only record when there is noise called V-Sync - see manual, p44) - all that is needed is a cable with a USB jack on one end and the GND and +5V leads connected to a round jack appropriate for your LS11... easily soldered...

Joachim

Last edited by jring : Tuesday 17th December 2019 at 12:26.
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