- From: Markku Hakkinen <markku.hakkinen@gmail.com>
- Date: Mon, 30 Nov 2009 11:51:35 -0500
- To: Jan Richards <jan.richards@utoronto.ca>
- Cc: UAWG list <w3c-wai-ua@w3.org>
Thanks go to Jim also, who helped in the re-edit. Your suggested changes are great. Thanks. The proposal now stands as: 4.9.6 Change Rate of Time-based Media The user can adjust the playback rate of prerecorded audio and/or video content, such that all of the following are true (Level A): - The user should be able to adjust the playback rate of the recorded audio and/or video tracks to between 50% and 250% of real time. - Prerecorded speech, whose playback rate has been adjusted by the user, should maintain pitch in order to prevent degradation of the speech quality. - Audio and video tracks remain synchronized across the full range of playback rates. - The UA should provide a function that resets the playback rate to normal (100%). mark On Mon, Nov 30, 2009 at 11:32 AM, Jan Richards <jan.richards@utoronto.ca> wrote: > Hi Mark, > > Nice and straightforward. Just a few tweaks added in ALL CAPS: > > The user can adjust THE playback rate of prerecorded AUDIO AND/OR VIDEO > content, such that all of the following are true (Level A): > > - THE USER SHOULD BE ABLE TO ADJUST the playback rate of the recorded audio > and/or video tracks TO between 50% and 250% of real time. > > - PRErecorded speech, whose playback rate has been adjusted by the user, > should maintain pitch in order to prevent degradation of the speech > quality. > > - Audio and video tracks remain synchronized across the FULL RANGE OF > playback RATES. > > - The UA should provide a function that resets the playback rate to > normal (100%). > > > Cheers, > Jan > > > Markku Hakkinen wrote: >> >> 4.9.6 Change Rate of Time-based Media >> >> The user can adjust playback rate of prerecorded content such that all >> of the following are true (Level A): >> >> - The playback rate of the recorded audio and/or video tracks should >> be user adjustable between 50% and 250% of real time. >> >> - Recorded speech, whose playback rate has been adjusted by the user, >> should maintain pitch in order to prevent degradation of the speech >> quality. >> >> - Audio and video tracks are expected remain synchronized,across the >> playback range. >> >> - The UA should provide a function that resets the playback rate to >> normal (100%). >> > > -- > Jan Richards, M.Sc. > User Interface Design Lead > Adaptive Technology Resource Centre (ATRC) > Faculty of Information > University of Toronto > > Email: jan.richards@utoronto.ca > Web: http://jan.atrc.utoronto.ca > Phone: 416-946-7060 > Fax: 416-971-2896 > > > >
Received on Monday, 30 November 2009 16:52:18 UTC