- From: Pierre-Anthony Lemieux <pal@sandflow.com>
- Date: Mon, 10 Dec 2012 22:47:21 -0800
- To: public-html-media@w3.org
Hi all, Per our last telecon, I looked at the bugs I filed in the context of the upcoming MSE FPWD. I think issue #19673 [1] would benefit the most from being included in the FPWD, and exposed to a broader audience. Audio splicing is not trivial and has been visited many times before. In my mind, MSE should provide guidance to implementers based on existing practices and match the capabilities of existing consumer audio-video formats. Specifically, while Sections 2.1.2 and 2.1.3 already discuss behavior at splice points, I think the specification would benefit from additional guidance in order to prevent audio artifacts and enable seamless splices. For instance, the statement "implementations must support dropping the old audio frame [...] and insert silence for the small gap that is created" seems to exclude non-frame-based audio and suggest inserting silence without a fade. One approach would be to collect all splice point recommendations in an (informative?) Annex. I think the document referenced in issue #19673 could be a starting point -- but I am biased of course. Looking forward to the discussion. Happy to contribute. Best, -- Pierre [1] https://www.w3.org/Bugs/Public/show_bug.cgi?id=19673
Received on Tuesday, 11 December 2012 09:46:08 UTC