[webrtc-stats] Volume needs a more complete definition.

• From: Harald Alvestrand via GitHub <sysbot+gh@w3.org>
• Date: Thu, 03 Nov 2016 14:37:36 +0000
• To: public-webrtc@w3.org
• Message-ID: <issues.opened-187077618-1478183855-sysbot+gh@w3.org>

alvestrand has just created a new issue for 
https://github.com/w3c/webrtc-stats:

== Volume needs a more complete definition. ==
Current text:

audioLevel of type double
Only valid for audio, and the value is between 0..1 (linear), where 
1.0 represents 0 dBov. Calculated as defined in [RFC6464].

RFC 6464 defines a logartihmic scale with -127 pegged to silence. 
That's not what is meant here.
"Linear" comes close, but not quite enough, I think.

I think we want 0..1, where 0 is silence, 1 is 0 dBov, and 0.5 
represents "approximately 6 dBSPL change in the sound pressure level 
from the maximum" (quoted from the mediacapture draft's "volume" 
spec).

Please view or discuss this issue at 
https://github.com/w3c/webrtc-stats/issues/81 using your GitHub 
account

Received on Thursday, 3 November 2016 14:37:42 UTC