Questions tagged [microphone]

The tag has no usage guidance.

Filter by
Sorted by
Tagged with
5 votes
2 answers
136 views

How to convert relative db to db SPL knowing microphone specifications?

Similarly to this discussion (Is it common to have a negative-positive dB range in underwater spectrograms?), I used the 'seewave' R package to plot the below spectrograms. I limited the coloured ...
Andrea's user avatar
  • 53
4 votes
2 answers
202 views

Recommended Setup to record Tree Sounds

Question: What would be your recommended Microphone / Interface Setup ? Task: Hello everyone, i am curious about a technical setup to record Xylem tubes and water cavitating inside trees. the idea was ...
jindo's user avatar
  • 41
3 votes
3 answers
121 views

Parabolic Microphones?

I'm doing some field recording but we're not able to get super close to what we're looking to record. I figured a parabolic mic might be the move, but they all seem really expensive, and our budget is ...
Becky Heath's user avatar
2 votes
3 answers
66 views

How to avoid that cables get entangled in the field?

Does anybody have an advice to keep cables from entangling horribly during field recording? I have the cable from the microphone and the cable from the headphones, both longer than I can handle with ...
lframond's user avatar
  • 1,024
6 votes
1 answer
70 views

Recording parrots, would a Zoom H4N suffice?

I am working on my undergrad thesis with geographical variations on parrot vocalizations.I originally designed my study with Audiomoths because I had just gotten some. However, I now realized that ...
user1396's user avatar
3 votes
1 answer
32 views

Setting different channels gains on stereo ARU to maximize detections

When trying to detect particular animal vocalizations, is it a good idea to use stereo autonomous recording unit (ARU) and set different channels gains? I would think that having a channel with a low ...
Maxime BRU's user avatar
8 votes
1 answer
277 views

What options are there for micro audio recorders?

I'm in the process of purchasing gear for this upcoming field season and am looking for audio recorder recommendations. I'm hoping to place ~30 small recorders in seabird rock crevices to record ...
Katrina W's user avatar
  • 143
5 votes
1 answer
431 views

Song Meter vs AudioMoth PAM performance

I'm assembling a PAM field kit for the upcoming breeding season in the temperate rainforest ecoregion of Washington, USA, and would love to learn about your experiences with different ARU (Autonomous ...
giojacuzzi's user avatar
5 votes
2 answers
30 views

Mic Recommendations for Hummingbird Chip Notes?

I am doing my honors thesis on Anna's Hummingbird chip notes. I need to capture clean chip notes in the field. They are pretty distinct vocalizations, but part of my research is quantifying the ...
raptorfeather's user avatar
12 votes
2 answers
119 views

How long do hydrophone (/microphone) calibrations last for?

A colleague asked the room this the other day and nobody could confidently answer this... How long, after an acoustic sensor has been calibrated, is its calibration curve trustworthy for? There was ...
Chloe's user avatar
  • 3,685
4 votes
1 answer
59 views

Shotgun microphone position for low-level sounds in a tube

I would like to record extremely low sound-level (at ~200-300Hz), produced by an insect which is located at the end of a plastic tube, with a very-sensitive low-noise shotgun pressure microphone (this ...
Noil's user avatar
  • 4,121
6 votes
2 answers
79 views

Recording of whitefly vibrations: "piezo" versus "low-noise microphone with subtrate-air diffusion"

Whiteflies communicate before and during mating through abdomen oscillations which vibrations are believed to propagate mostly in the leaf (~100-400 Hz). They are very low-energy signals which are ...
Noil's user avatar
  • 4,121
6 votes
2 answers
101 views

Equipment recommendation for sound source localisation

Do you have any recommendation for multichannel equipment for source localization? What parameters should I consider for the microphones, for the recorder? Also any advice for starting multichannel ...
Amandine Gasc's user avatar
  • 1,512
9 votes
3 answers
64 views

Recommended wind screen for MEMS microphones

Some folks in my lab are using Wildlife Acoustics Song Meter Mini sensors in a very windy grassland environment and having recordings get messed up by wind noise. Has anybody here had good luck with ...
dtsavage's user avatar
  • 1,162
18 votes
3 answers
656 views

Recommendations for external microphone for smartphone for casual recordings (birds, frogs, bats if possible?)

I would like to get a better microphone for my smartphone for recording wildlife around my home and when out camping. This question asked about very inexpensive accessories, but in this case, I am ...
selene's user avatar
  • 3,463
11 votes
2 answers
151 views

Pros and cons directional mic vs parabola

While searching through the bird song literature, I realized there are two schools for recording songs. Some people use a directional microphone and some people use a parabola. I was wondering why to ...
lframond's user avatar
  • 1,024
10 votes
2 answers
49 views

Bumped into acoustic array during fieldwork - localisation issue?

While walking backwards in the dark, I bumped into my 4-channel inverted T-shaped acoustic array placed on a tripod. The array has a central mic with 3 peripheral mics at 60 cm Radius at 120 deg ...
Thejasvi's user avatar
  • 4,070
7 votes
3 answers
61 views

leaving mics in a cave during fieldwork

I'm recording bats in a cave with many small (Knowles SPU-0410), and big (Sanken CO-100) mics. The cave is mostly isolated from the outside, with a temperature between 10-15C inside, and it could get ...
Thejasvi's user avatar
  • 4,070
11 votes
3 answers
74 views

Microphone calibration stability?

I've always wondered how 'stable' microphone frequency response and sensitivities are? In particular, I'm not talking about the high-end (GRAS/B&K/others) calibration microphones, but rather '...
Thejasvi's user avatar
  • 4,070
12 votes
1 answer
88 views

Software packages to run microphone frequency-response calibrations?

I will need to measure microphone frequency responses in the coming weeks. In the past I have always used scripts I wrote or written by colleagues. They seemed to work, but required tweaking each time ...
Thejasvi's user avatar
  • 4,070
8 votes
2 answers
133 views

How reliable are "particle-velocity" microphones?

For studies with insects which are sensitive to air particle-velocity, so called "particle-velocity" microphone are used (e.g. here, here, here, here). However, they are not truly particle-...
Noil's user avatar
  • 4,121
7 votes
2 answers
75 views

Is it possible to estimate particle velocity from a pressure microphone?

I work with insects which are sensitive to particle velocity (pressure gradient) via their flagellum ears. I need to monitor the sound level of the playback stimuli they are exposed to, however, I ...
Noil's user avatar
  • 4,121