Bat Detector Information Pack
Contents
1. FD channel on Duet recordings which is a good training tool Audition is available as a 30 day try out and the full package is 350 Web site http www adobe com uk products audition QO Avisoft at www avisoft com offers free download of a minimal program called SAS lab Light 5 7 MB for very basic editing and generation of spectrograms The full Avisoft has a whole range of functions although it takes time to learn how to use them all O Bat Scan available from www batbox com comes with a selection of sample files so that you can compare your own recordings It costs 17 plus VAT and delivery and is a simplified version of Spectrogram In general it is faster and easier to use than BatSound but does not have all of the functions although the sonogram is nice and clear and there are memory saving devices Follow up service and advice is always outstanding It is also available from Alana ecology www alanaecology com at 30 including VAT Q BatSound the original software developed especially for use with ultrasonic bat calls It is available from Alana Ecology www alanaecology com and costs around 275 and more for multiple licenses BatSound has a nice big window for sonograms and an easy to use toolbar with shortcut buttons that operate on a mouse click for common functions It has lot of extra tools but also some annoying little quirks like re setting your parameters as you are working The help files are generally well structur2. Ltd www magenta2000 co uk 135 Hunter Street Burton on Trent Staffs DE14 2ST Tel 01283 565435 Email sales magenta2000 co uk Magenta MKII Kit Bat4 Bat5 Pettersson Elektronik AB www batsound com Sweden based email for a UK quote info batsound com Full range of Pettersson detectors except D500x Semafor http www semafor co uk bat detector html Email enquiries semafor co uk for a catalogue Semafor UF 140 UF 220 Please note that both models are currently marked as unavailable on their website Titley Electronics www titley com au Australia based can be shipped to UK Email info titley com au Anabat II is being phased out and Anabat SD1 is also available from UK suppliers Alana Ecology details above Anabat II Anabat SD1 Ultra Sound Advice http www ultrasoundadvice co uk 27 Merton Hall Road Wimbledon London SW19 3PR Tel 020 8287 4614 Email sales soundadvice co uk Mini3 Detector U30 Detector Sound Analysis Software A selection of software packages for analysing bat echolocation calls recorded using a broadband bat detector time expansion or frequency division OQ Adobe Audition v 3 0 Is a substantial package that calculates all the start end peak frequencies of a pulse for you and you can do great manipulations with the sound It can also convert batches of mp3 or other formats to WAV format really quickly You can also listen to heterodyne separate from the
3. correct at time of going to print Alana Ecology Ltd www alanaecology com The Old Primary School Church Street Bishop s Castle Shropshire SY9 5AE Tel 44 0 1588 630173 Email sales alanaecology com Anabat SD1 Batbox III D Baton Duet Griffin Magenta MKII Kit Bat4 Bat5 Mini 3 Pettersson D100 D200 D230 D240x D500x D1000x Batbox Ltd www batbox com 2A Chanctonfold Horsham Road Steyning West Sussex BN44 3AA Tel 01903 816298 Email info batbox com Batbox III D Baton Duet Bat Ma nagement www batmanagement com US based email for a UK quote sales batmanagement com Pettersson D200 D500x only available here D1000x Bat Planet www batplanet co uk C o Yarwood Ltd Treefield Industrial Estate Gelderd Road Leeds LS27 7JU Email sales batplanet co uk Full range of Ciel detectors not including CDP 302 Belfry bat detector Bioquip www bioquip net Batbox III D and Duet Full range of Ciel detectors not including CDP 302 Cou rtpan http courtpan gnxt net 3 Suffolk Street Cheltenham GL50 2DH Tel 01242 570123 Email courtpan gxn co uk Tranquillity Transect Tranquility I ECO Mega EcoObs www ecoobs com Contact via online contact form http www ecoobs com cnt contact html Batcorder Green witch www green witch com search for bat detectors Tel 01954 211 288 Batbox III D Baton Duet Griffin available to pre order Magenta Electronics
4. reference calls in the same window next to a call that you are trying to identify Reference calls are automatically adjusted to match time and frequency scale of the one you are looking at Analysis functions are plentiful including definition of low high frequencies bandwidth duration heel slope characteristic frequencies harmonics and automatic calculation of the inter pulse interval The program costs US 320 There is a free downloadable demo of v2 4 for Mac and PC www sonobat com O Sony Sound Forge available at http www sonycreativesoftware com products soundforgefamily asp These are audio editing and production software Sound Forge Audio studio costs 33 29 and there is a free trial available Also available is Sound Forge 9 Professional audio production suite costing 230 Q Spectrogram v 16 processes both ultrasonic and audible sound You have to select the ultrasound controls and it has a lot of functions that are not relevant for bat analysis It can take a while to set up the parameters to your personal requirements although once done it is easy enough to use The help file is huge but otherwise it is similar to BatScan Most operations use function keys It is free to download at http www visualizationsoftware com gram html Richard Horne who developed it is very helpful and any queries receive a quick response Q Syrinx is another program designed by Dr John Burt for bird calls It shows a spectrographic rolli
5. Bat Conservation Trust Bat Detector Information Pack The basics There are three types of bat detector 1 Heterodyne e Heterodyne detectors are tuneable you select the frequency range to listen to This makes them the best detectors for immediate identification of bats in the field e They work by filtering the inaudible bat sound with an ultrasonic signal from the detector and producing the audible difference between the two sounds e Sounds can be recorded onto a recorder but recordings cannot be used with sound analysis software to generate sonograms as frequency information is not retained e They are the cheapest of the detectors and are simple to use making them ideal for beginners 2 Frequency Division e Frequency division detectors detect all frequencies so there is no need to tune into a specific frequency and you don t miss any bats e They sample a set of incoming sound waves and take an average to divide the incoming frequency by a particular factor to give an audible output e g 50kHz factor of 10 into 5kHz e Sounds can be recorded and used with sound analysis software but some information is lost They are generally low to mid price but cheaper versions tend not to retain amplitude information 3 Time Expansion e Like frequency division detectors Time Expansion detectors detect all frequencies e They work by digitally recording a short snatch of sound e g 1 second then playing it back at a slower speed
6. andwidth PP3 and control for 16kHz single handed 8kHz operation Wrist strap Pettersson 425 10 Electret 1 10 120kHz Y 1x9V 119x60x25 LCD Display D230 Bandwidth PP3 Comment switch 8kHz 4kHz U30 525 10 20 40 Unknown 15 200kHz Y 2x AA 147x65x40 Miniature ultra low noise microphone Time Expansion Detectors Summary in price order Model Approx Expansion Microphone Freq Batteries Size mm Design features other cost Factor range factors TIME EXPANSION ONLY Tranquility 470 N A Capacitive 10 160kHz 4x AA 145x95x45 Hands free worn around Transect neck No speaker TIME EXPANSION AND HETERODYNE Tranquility 750 10 32 64 Capacitive 12 160kHz 4x AA amp 155x95x52 LED display Internal Ill internal digital recorder 10 24sec battery memory Pettersson 1100 10 Advanced 10 120kHz 1x9V 119x60x25 LCD Display Comment D240x Electret 1 8kHz PP3 switch Storage time 3 4 4kHz 1 7 or 0 1sec Automatic or manual trigger ECO Mega 1550 10 32 64 Capacitor 12 160kHz 4x AA 170x110x40 25 6sec memory Voice commentary Time tag 30min intervals Back to back recording Time Expansion Frequency Division and Heterodyne Model Approx Frequency Microphone Freq Batteries Size Design features other cost Expansion range mm factors Factor Batbox Griffin Price to Unknown Unknown Unknown AA Unknown Built
7. ed and easy to use You can download an evaluation version for free from the BatSound website at http www batsound com psonan html 1210kb Q Bat Wave Analyzer can be found by going to the Arboriculture Information Exchange site at http www aie org uk and look in the A Z index for Bats It has been developed by Chris Skillern and is available as a free download at the moment you will need 364k There is also a help manual to go with the program It allows all the usual recording and analysis and notes can be inserted onto the sound wave and saved with the file Totally free so well worth snapping it up while you can Q beAnalyze 1 0 is a programme designed to work with real time recordings of bat calls To be used with recordings from the batcorder system http www ecoobs com cnt bcAnalyze html A call finding algorithm quickly finds calls within the recording A license costs 140 VAT and runs for 30 days in trial mode System requirement is a Mac running Mac OS X 10 5 QO Cool Edit Pro 2 1 an old favourite taken over by Audition is now available as a free download from http www softpedia com progDownload Cool Edit Pro Download 2076 html 18 20 MB It is not the full version but is still useful and recommended for people that want to have a try with a simple program The spectrogram and oscillogram cannot be viewed simultaneously OQ The Bioacoustics Research Programme at Cornell Laboratory of Ornithology developed a we
8. eterodyne A wider bandwidth reduces the chances of missing species you are not tuned into while a narrower bandwidth makes it easier to discern the difference between bats calling at similar frequencies e Design size display LED LCD controls on side or top side controls easier for single handed operation The following is a guide to some of the detectors that are available on the market at the present time and their main features It is not intended as a review and prices should only be used as a guide Heterodyne Bat Detectors Summary in price order Model Approx Microphone Freq Bandwidth Batteries Size mm Speaker Design features cost type amp no range other factors Magenta 36 Unknown Unknown 16kHz 1x9V 145x80x34 Y Requires soldering amp MkII Kit 8kHz PP3 electronics skills amp the ability to understand circuit diagrams Semafor 45 Unknown 10 140kHz Unknown 1x9V 145x60x45 Y UF 140 PP3 Semafor 55 Unknown 10 220kHz Unknown 1x9V 145x60x45 Y UF 220 PP3 Ciel CDB 60 Electret 1 18 120kHz 10kHz 1x9V 140x64x31 Y Integrated LED torch 105 R2 5kHz PP3 BATZ model also Mono available same spec aimed at children Magenta 60 Electret 1 15 130kHz 9kHz 4x AAA 145x80x34 Y LED torch Large Bat4 4kHz frequency dial with top illumination Side controls for single handed operation Wrist strap Ciel CDB 90 Electret 2 15 130kHz 10kHz 1
9. in recording Date be time temperature amp light Launch date to advised reading levels be announced Programmable menu driven function set up Pettersson 3800 From 1 Capacitance 10 200kHz Internal 170x80x35 First bat detector with a D1000x original 1 batteries or built in digital tape builtto speed to 30 external recorder 16 bit order power recording system using supply compact flashcard as 6 10V storage Manuel or level triggering modes Comments recording mode Real time Bat Recorders for long term unattended monitoring Model Approx cost Microphone Freq range Batteries Size mm Design features other factors Pettersson 1699 Electret 1 N A 4x AA 184x172x52 Detects and records ultrasound in D500x Sampling or real time Aimed for long term rates external unattended recording of bat calls 44 1kHz power Four slots for CompactFlash 300kHz and supply memory cards with total capacity 500kHz of 128GB Triggering system optimised allowing device to start recording for 500kHz as sound is detected Batcorder 2400 Electret 1 16 150kHz 4x AA Unknown Analyses microphone signal in real time and discriminates Email between bat calls and other sound info ecoobs com signals Autonomous long term for quote monitoring Independent recording device and software built to co operate with the hardware Manufacturers and suppliers details
10. ll respected sound program called Canary some time ago It is free to download but unfortunately only runs on Mackintosh http www birds cornell edu brp software canary information The user manual has some really useful background information about how spectrograms are created and analysed If you are willing to delve into some physics it can help you to use other sound analysis programs more effectively Relevant sections available from http www birds cornell edu brp software are Appendix A Digital Representation of Sound and Appendix B A Biologists Introduction to Spectrum Analysis Q The new sound analysis software from Cornell University called Raven is available from http www birds cornell edu brp raven Raven html There are two options Raven v 1 4 and Raven Lite which is free Full version is able to display any number of sound files simultaneously with each file in its own window It has other features that allow you to easily measure compare and edit parts of different sequences and sounds The Raven Lite version has ability to view only a single spectrogram at one time Both versions are available for Mac OSX or PC The full version is US 400 100 year for students Q Sonobat v 2 5 5 is a program developed in the USA It includes an auto trigger recording function developed especially for the D240x set up to trigger automatically amp allowing remote recording to a digital recorder It allows you to look at
11. ng display and allows analysis and editing It can be obtained for free after filling in a short application form at http syrinxpc com O TF32 is a free programme which is very simple to use There is a user manual available on the website http www medsch wisc edu milenkvc tools html O Wavesurfer another completely free program available from http www speech kth se wavesurfer This was developed for speech analysis and you need to establish your own spectrogram parameters and save them so you need to know a little about the terminology FFTs etc or you can look at the ibats website for instructions written by Dr Jon Russ http www ibats org uk page aspx tabid 256 Web addresses frequently change If the link no longer works enter the programme name in a search engine such as Yahoo or Google Oct 2009 The Bat Conservation Trust 15 Cloisters House 8 Battersea Park Road London SW8 4BG Tel 0845 1300 228 Fax 020 7627 2628 Email enquiries bats org uk www bats org uk
12. resulting in the highest quality recording of all the detector types and retention of the most information The disadvantage is that while the detector is playing back the slowed down sounds it becomes deaf to any bats flying past so continuous recording is not possible e Sounds can be recorded and used with sound analysis software They enable a very detailed analysis of the sound and a clearer sonogram when compared to frequency division e They are the most expensive of the detectors Additional note e Some detectors feature more than one type of sound conversion for example some frequency division detectors have a heterodyne mode as well and some feature all three models of sound conversion These detectors are the most expensive There are a number of factors to consider when choosing a bat detector These include e Price e Microphone and frequency range Microphones determine the sensitivity of the bat detector Piezo best at mid frequencies 45kHz Electret lower frequencies lt 30kHz and Capitance higher frequencies gt 80kHz You will still be able to detect other frequencies but the distance you can detect them from will vary Detectors with more than one microphone are best because they will be sensitive at more than one frequency e g Pettersson D100 overleaf All European species are detectable within the range 20 120kHz e Bandwidth How many kHz either side of your tuned frequency you can hear calls on h
13. t Factor range retaining mm other factors FREQUENCY DIVISION ONLY Ciel CDB 60 10 Electret 1 18 120kHz N 1x9V 140x64x31 Built in speaker and 205 Mono PP3 LED torch Belfry Bat 65 Unknown Unknown 25 100kHz N 1x9V Unknown Non tuneable Small Detector PP3 internal speaker Batbox 70 10 Electret 1 20 120kHz Y 1x9V 165x46x34 Comes with Baton PP3 BatScan sound analysis software Very simple design amp easy single handed operation Anabat II 400 4 8 16 32 Electret 1 10 200kHz N A 1x9V Unknown Inbuilt speaker amp ZCAIM PP3 Single hand phasing operation out Anabat SD1 1400 8 16 32 Electret 1 10 200kHz N A 4x AA 159x90x45 LED indicator Uses internal compact flash or 12V memory cards for external data storage GPS recorder can be connected Real time clock Programmable monitoring FREQUENCY DIVISION AND HETERODYNE Ciel CDB 100 10 Electret 1 18 120kHz N 1x9V 140x65x40 Built in speaker 305 R2 Dual Bandwidth PP3 10kHz 5kHz Ciel CDB 200 10 Electret 2 15 120kHz Y 1x9V 170x75x35 Backlit LCD 301 R3 Bandwidth PP3 display Separate Advanced 10kHz microphones for 5kHz each function Commentary button enabling note taking Ciel CDP Price to 10 Unknown 2 15 130kHz Y 1x9V Unknown Boxed for mounting 302 be Bandwidth PP3 and long term Available advised 10kHz surveys from April 5kHz 2009 Batbox 270 10 Electret 1 17 125kHz Y 1x9V 125x69x32 Large LED display Duet b
14. x9V 170x75x40 Y LED display 103 R3 5kHz PP3 Stereo Magenta 90 Electret 1 10 130kHz 9kHz 4x AAA 135x72x27 Y LCD display with Bat5 4kHz backlighting Inbuilt LED torch Side controls for single handed operation Wrist strap Ciel CDB 115 Electret 2 15 130kHz 10kHz 1x9V 170x75x40 N LCD display External 101 R3 5kHz PP3 speaker can be added Stereo Mini 3 145 Electret 1 15 160kHz 8kHz 2xAA 147x65x40 Y Large illuminated 4kHz tuning dial BBC Wildlife Magazine Best buy Batbox IID 150 Electret 1 19 125kHz 16kHz 1x9V 125x69x32 Y 12 5mm digital LCD 8kHz PP3 display with backlight Side controls for single handed operation Ciel CDP 150 Electret 2 15 130kHz 13kHz External 125x75x40 N Boxed for mounting 102 R3 external 6 5kHz 9 12V and long term surveys Professional DC Stereo dual option can Stereo Source observe 2 frequencies at the same time LCD display Pettersson 185 Electret 1 10 120kHz 8kHz 1x9V 113x71x33 Y Built in speaker Backlit D100 amp Piezo 2 4kHz PP3 frequency control Pettersson 225 Electret 1 10 120kHz 8kHz 1x9V 119x60x25 Y Fully backlit LCD D200 4kHz PP3 display Side controls easy to adjust Broadband Bat Detectors Frequency Division Detectors Summary in price order Model Approx Division Microphone Freq Amplitude Batteries Size Design features cos
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