What exactly is an "amplitude ratio"?

classic Classic list List threaded Threaded
2 messages Options
Reply | Threaded
Open this post in threaded view
|

What exactly is an "amplitude ratio"?

Josh McNeill
Hello,

I'm using the silencedetect filter for a project, and I've been using an
amplitude ratio for the threshold (i.e., n=), but I'm not sure what this
actually refers to. My guess is that it's a percentage of the peak
amplitude in the file (e.g., 0.01 is 1% of the highest amplitude), but
there's nothing in the documentation that I can find that defines this
term, and I've never seen it anywhere else. Is my guess correct or does
amplitude ratio refer to something else?

Thanks.

--
Joshua McNeill
www.joshmcneill.com


---
L'absence de virus dans ce courrier électronique a été vérifiée par le logiciel antivirus Avast.
https://www.avast.com/antivirus

_______________________________________________
ffmpeg-user mailing list
[hidden email]
http://ffmpeg.org/mailman/listinfo/ffmpeg-user

To unsubscribe, visit link above, or email
[hidden email] with subject "unsubscribe".
Reply | Threaded
Open this post in threaded view
|

Re: What exactly is an "amplitude ratio"?

Carl Eugen Hoyos-2
2019-01-28 17:30 GMT+01:00, Josh McNeill <[hidden email]>:

> I'm using the silencedetect filter for a project, and I've been using an
> amplitude ratio for the threshold (i.e., n=), but I'm not sure what this
> actually refers to. My guess is that it's a percentage of the peak
> amplitude in the file (e.g., 0.01 is 1% of the highest amplitude)

Not the peak amplitude in the file but the maximum possible
amplitude afaict.

Carl Eugen
_______________________________________________
ffmpeg-user mailing list
[hidden email]
http://ffmpeg.org/mailman/listinfo/ffmpeg-user

To unsubscribe, visit link above, or email
[hidden email] with subject "unsubscribe".