Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

does the --illustrate option work? #65

Open
db48x opened this issue Jul 19, 2019 · 2 comments · May be fixed by #70
Open

does the --illustrate option work? #65

db48x opened this issue Jul 19, 2019 · 2 comments · May be fixed by #70

Comments

@db48x
Copy link

db48x commented Jul 19, 2019

I've been playing around with audfprint and am trying the --illustrate option to see how things work, and try to figure out why some matches are poorer than otherss

Here's what I see for one particular match that I'm interested in:
Screenshot from 2019-07-19 16-07-26

Do the fingerprints really cover so little of the audio, or it just being drawn with the wrong scale?

Where does the time axis fall relative to the match? This match is 1768.4 seconds into the reference file, and is only 0.2 seconds long (and yet it's not a false-positive).
@db48x
Copy link
Author

db48x commented Jul 20, 2019 •
edited
Loading

After staring at the code for a bit, I think the hashes are scaled wrong. Testing some likely-looking scale factors certainly makes a better-looking plot:

Screenshot from 2019-07-19 17-19-24

Also, my query is 9.7 seconds long, so the time axis could be relative to the query.

db48x added a commit to db48x/audfprint that referenced this issue Sep 23, 2019
@db48x
fix the --illustrate option so that it scales the hashes correctly
ec1834a 
The hashes were not scaled to correctly overlay the spectrogram; they
were squached and unreadable. I also changed it to display the hashes
from the reference where the match was found in addition to the hashes
from the query and those hashes that matched. There are also now
checkboxes for turning each of these three on or off.

Fixes dpwe#65.
@db48x db48x linked a pull request Sep 23, 2019 that will close this issue
Open
@db48x
Copy link
Author

db48x commented Sep 23, 2019

After the fix:

Screenshot from 2019-09-22 18-25-35

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Assignees
No one assigned
Labels
None yet
Projects
None yet
Milestone
No milestone
Development

Successfully merging a pull request may close this issue.

fix the --illustrate option so that it scales the hashes correctly db48x/audfprint
1 participant
@db48x