Subscribe to Our Youtube Channel
Related Manuals for Wildlife Acoustics Song Meter SM2BAT
Summary of Contents for Wildlife Acoustics Song Meter SM2BAT
- Page 1 Song Meter SM2BAT 192kHz Stereo or 384kHz Mono Ultrasonic Recorders Wildlife Acoustics, Inc. www.wildlifeacoustics.com...
- Page 2 Copyright © 2009-2011 Wildlife Acoustics, Inc. Rev. 5/17/11 All rights reserved. Wildlife Acoustics is registered in the U.S. Patent and Trademark Office. Song Scope, Song Meter, SM1, SM2, SM2BAT, SMX, and WAC are trademarks of Wildlife Acoustics, Inc. All other trademarks are the...
-
Page 3: Table Of Contents
Simple One-Channel Configuration ........ 6 Jumper Settings............6 Schedule..............7 Audio Settings............7 Stereo Ultrasonic Recording..........9 Mixed Ultrasonic and Acoustic Recording...... 9 Stereo Mixed Recordings........... 9 Scheduled Mixed Recordings ........10 Post Processing ..............11 Copyright © 2009-2011 Song Meter SM2BAT... -
Page 4: About This Document
Hz sample rate is selected, the SM2BAT 192kHz stereo daughter card is used to sample the audio stream from the left and right channels. Otherwise, the SM2 uses its on-board codec to sample at audio rates up to 48,000 Hz. Song Meter SM2BAT Copyright © 2009-2011... -
Page 5: Smx-Us Microphone
Otherwise water could change position and come in contact with the transducer resulting in damage. If you are deploying the SM2 in field conditions expected to remain wet or frozen, you may want to operate the SMX-US microphone without its foam Copyright © 2009-2011 Song Meter SM2BAT... -
Page 6: Directionality And Frequency Response
The SMX-US is an omnidirectional microphone and is therefore ideally suited to unattended monitoring in which the precise direction of bat activity may not be known in advance. The following graph illustrates the typical pick-up pattern: SMX-US Directionality -100 40khz 80kHz 120kHz Song Meter SM2BAT Copyright © 2009-2011... - Page 7 The SMX-US is sensitive to frequencies over 150kHz. The graph shows the typical frequency response and noise floor of the SMX-US microphone. Some additional attenuation can be expected if the microphone windscreen is wet, especially in higher frequencies: Copyright © 2009-2011 Song Meter SM2BAT...
-
Page 8: Cables
SM2 without the SM2BAT card installed. In the case of the 192kHz stereo card, 25mA of additional current is used. In the case of the 384kHz mono card, 15mA of additional current is used. Song Meter SM2BAT Copyright © 2009-2011... -
Page 9: Using Sm2Bat To Monitor Bats
Song Meter SM2 User Manual for details. The dynamic range can be increased by using +36dB gain to avoid clipping stronger signals without significant impact to quieter signals. +48dB gain will deliver a stronger signal with a slight improvement to high-frequency signal- Copyright © 2009-2011 Song Meter SM2BAT... -
Page 10: Schedule
192kHz mono. If you use one hour periods instead of half- hour periods for 384kHz mono or 192kHz stereo, recordings would be split into alternating 46.6 and 13.4 minute recordings which may be confusing. Audio Settings The audio settings should be set as follows: Song Meter SM2BAT Copyright © 2009-2011... - Page 11 You can increase detection rate on fainter signals by reducing the threshold, but this may also increase the false trigger rate, especially in wind and rain. More information on filters and triggers can be found in the Song Meter SM2 User Manual Copyright © 2009-2011 Song Meter SM2BAT...
-
Page 12: Stereo Ultrasonic Recording
For example, setting a digital low-pass filter to fs/24 will filter out sounds above 8kHz. An example of this is Song Meter SM2BAT Copyright © 2009-2011... -
Page 13: Scheduled Mixed Recordings
A similar example for 384kHz can be found in “SM2BAT-384- MIXED-SCHED.SET”: 01 SET384000xMONO-L 02 AT SSET-00:00:00 03 DO 04 RECORD 00:30:00 05 GOTO LINE 04 00X 06 UNTSRIS+00:00:00 07 SET 24000xMONO-R 08 RECORD 01:00:00 09 GOTO LINE 01 00X Copyright © 2009-2011 Song Meter SM2BAT... -
Page 14: Post Processing
Files that do not meet this criterion are still split out as .WAV files, but the filename is prepended with the prefix “NOISE_” so they can be set aside. Song Meter SM2BAT Copyright © 2009-2011... - Page 15 The division ratio can be specified as well as the sensitivity. The sensitivity is specified in dB relative to a full-scale signal, or can be set to zero for autoleveling Copyright © 2009-2011 Song Meter SM2BAT...
Need help?
Do you have a question about the Song Meter SM2BAT and is the answer not in the manual?
Questions and answers