Unanswered Questions

11 questions with no upvoted or accepted answers
10 votes
0 answers
31 views

Tools to visualize and compare species detections in long-term recordings

I am looking for a tool to visualize detections (species of choice) in long-term recordings (e.g. over month, over year). I have manual annotations of many files produced in Raven Pro. Raven selection ...
10 votes
0 answers
40 views

Can someone recommend hardware to generate ultrasound on underwater recording rig?

I would like to construct a simple system for automatic playback of ultrasound signals at low levels for calibration purposes on an underwater recording rig. Can anyone point to a suitable DAC (...
9 votes
1 answer
42 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 ...
6 votes
0 answers
98 views

Apple M1/M2 chips for acoustic deep learning

I’ve been reading that both Tensorflow and Pytorch deep learning frameworks are now supported by Apple M1/M2 chips. This means that a deep learning acoustic species classifier should run an order of ...
5 votes
1 answer
61 views

Best practice for measuring amplitude of biophony

It is often useful to quantitatively measure (or at least estimate) the amplitude of an acoustic event such as a bird song. The desired measurement could be, for instance, that a bird sang at 105 dB ...
5 votes
1 answer
42 views

How to change date/time created on Zoom H4N metadata

I've been using a Zoom H4N to record bird vocalisations paired with a dictation microphone for behaviour observations. When I'm trying to sync up my data, the dictation mic .mp3 file has the correct ...
4 votes
1 answer
25 views
+50

How best to attach piezzo sensors to a leaf to measure vibration?

I'd like to measure with a cheap piezoelectric disk the vibration signals sent by whiteflies when resting on leaves. These disks are usually pretty big (I have not found any less 2cm diameter) and ...
4 votes
0 answers
38 views

Fun challenge: how would you analyze this sound track to show presence or absence of acoustic interactions

How would you analyze the sound track in this video to show the presence or absence of acoustic interactions between the cello emissions and the birds? https://aeon.co/videos/yo-yo-ma-performs-a-work-...
4 votes
0 answers
29 views

How do you deal with songs vs. calls when assessing BirdNET detection rates?

I am using BirdNET in projects to assess breeding bird acoustic phenology. BirdNET has provided a compelling opportunity to transition away from acoustic indices (which, though useful, provide ...
3 votes
0 answers
29 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 ...
1 vote
0 answers
18 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 ...