Closed valentina-s closed 5 months ago
Looking at this test plot more carefully than I was able to do during the standup this morning, @valentina-s, it doesn't look totally as expected for "typical" Orcasound spectrogram including a vessel noise event. Two reasons:
An even more compelling test plot (other than a spectrogram) IMHO would be a plot of broadband level vs time over a few hours. For example, a plot like this (without the red AIS-based range estimates) might be optimal:
Playing around with smoothing was a key part of the methods presented by Val in the corresponding ASA 2018 talk on "delta metrics".
@vaibhavmehrotraml @zprice12 @ttan06 I am sorry I missed your Friday Meet to talk about checking psd codes. I was all bollixed up with frozen pipes and cars sliding off the road and other weather worries. Now, all is calm again.
I want to join with you three and Valentina and Ben and Scott and to do so, I wonder if you guys have selected a particular audio data file to use for inter-comparisons. If you have such a wav file or prefer to specify a particular minute and a particular node, please let me know and I will run my 'legacy' codes to compare with your modern ones. By 'legacy' I mean codes that I have used for a long time and that don't use many 'fancy' new methods from scipy or labrosa etc.
Ship passage now produces expected pattern in the code
Timestamp for a passing boat (I believe):
peak time: July 4, 2020, 09:40:00 (UTC-07:00)
range: 9:33 - 9:47
AWS file: s3://streaming-orcasound-net/rpi_orcasound_lab/hls/1593869419/live1140.ts
colab notebook
@scottveirs is this the pattern you are looking for?