Questions tagged [decibels]
The decibels tag has no usage guidance.
6
questions
3
votes
2
answers
82
views
Is dB SPL always RMS?
I'm kind of struggling with the many definitions of decibels. I understand that we can either measure the root-mean-square, or the 0-to-peak, or the peak-to-peak value. I also understand that dB SPL ...
- 1,056
4
votes
1
answer
124
views
Standardising spectrogram amplitude
I'm trying to plot the spectrogram of blast fishing sounds. The level of background sound is relatively similar across all recordings.
When I plot files with bombs the background sound shows as quiet, ...
5
votes
1
answer
152
views
Is it common to have a negative-positive dB range in underwater spectrograms?
I am using the "seewave" R package to plot spectrograms in R.
Since my recordings were taken underwater, I specified as reference value 1 μPa.
Here is my code:
...
- 457
6
votes
1
answer
119
views
Can I convert dB(A) into dB?
Suppose I have a recorded sound, from which I can calculate a power spectrum, along with the Received Level of that sound measured in dB(A).
Is there a realistic way to back-calculate the non-weighted ...
- 1,056
4
votes
2
answers
377
views
What are linear decibels (dBL) and how do they compare to standard dB SPL?
I'm reading through an EIS that has a blast monitoring section where blasts are characterized by Peak Pressure Level (PPL) measured in linear decibels (dBL). I cannot find a good definition of this ...
- 229
22
votes
1
answer
159
views
If I don't know the source level of an animal's vocalization, is there still a meaningful way to measure how loud the signal is?
I am working with a remote species, and as far as I am aware there is no data on source levels or an audiogram available.
We placed the single recorder within a breeding area and have, at multiple ...
- 3,710