15:57:51 RRSAgent has joined #audio 15:57:51 logging to http://www.w3.org/2014/08/28-audio-irc 15:57:53 RRSAgent, make logs world 15:57:55 Zakim, this will be 28346 15:57:56 ok, trackbot; I see RWC_Audio()12:00PM scheduled to start in 3 minutes 15:57:56 Meeting: Audio Working Group Teleconference 15:57:56 Date: 28 August 2014 15:57:59 Agenda? 15:58:49 Agenda+ communication/education on AudioWorker and changes to SPN 16:00:29 kawai has joined #audio 16:00:40 RWC_Audio()12:00PM has now started 16:00:41 jernoble has joined #audio 16:00:48 + +1.617.455.aaaa 16:00:54 joe has joined #audio 16:01:37 Regrets: gmandyam 16:02:31 + +44.303.040.aabb 16:02:39 zakim, aabb is me 16:02:39 +olivier; got it 16:02:46 zakim, aaaa is joe 16:02:46 +joe; got it 16:03:28 +??P11 16:03:33 +[IPcaller] 16:03:39 zakim, ??P11 is me 16:03:39 +cwilso; got it 16:03:40 zakim, +[IPcaller] is me 16:03:40 sorry, kawai, I do not recognize a party named '+[IPcaller]' 16:03:51 zakim, +IPcaller is me 16:03:51 sorry, kawai, I do not recognize a party named '+IPcaller' 16:03:57 zakim, cwilso has rtoyg 16:03:58 +rtoyg; got it 16:04:00 rtoyg_ has joined #audio 16:04:07 zakim, IPcaller is kawai 16:04:07 +kawai; got it 16:04:42 +jernoble 16:05:56 Agenda+ heartbeat pub 16:06:01 agenda? 16:07:18 +[IPcaller] 16:07:31 zakim, IPcaller is padenot 16:07:31 +padenot; got it 16:07:37 zakim, take up agendum 1 16:07:37 agendum 1. "Review of Action Items" taken up [from olivier] 16:07:54 https://www.w3.org/2011/audio/track/agenda 16:08:26 action-107 closed 16:08:26 Closed action-107. 16:08:40 action-108 closed 16:08:40 Closed action-108. 16:09:04 action-104 16:09:04 action-104 -- Paul Adenot to Extract formulas from cookbook -- due 2014-08-21 -- OPEN 16:09:04 http://www.w3.org/2011/audio/track/actions/104 16:09:06 action-105 16:09:06 action-105 -- Doug Schepers to Mark up formulas for biquadfilter in mathml (get help from mathjax?) -- due 2014-08-21 -- OPEN 16:09:06 http://www.w3.org/2011/audio/track/actions/105 16:09:52 padenot: reviewing code in gecko and webkit, they seem different 16:10:01 ... different math, but result is the same 16:10:06 ... should be fine 16:10:42 (reviewed during last call- http://www.w3.org/2014/08/07-audio-minutes.html#item01) 16:11:36 padenot: will implement 16:11:44 zakim, take up agendum 2 16:11:44 agendum 2. "progress on AudioWorker/ScriptProcessorNode" taken up [from olivier] 16:12:32 CfC issued = http://lists.w3.org/Archives/Public/public-audio/2014JulSep/0061.html 16:13:20 olivier: have not seen objection to the breaking changes 16:13:29 http://lists.w3.org/Archives/Public/public-audio/2014JulSep/0063.html ? 16:13:32 cwilso: not sure if ROC's comment was an objection 16:13:51 -padenot 16:13:53 ahh 16:14:22 +[IPcaller] 16:14:31 Zakim, IPcaller is me 16:14:31 +padenot; got it 16:15:03 cwilso: empathetic to the fact it would be a breaking change 16:15:27 q+ 16:15:31 ... will be tough but given IE is implementing at the moment, we should take the heat 16:15:33 q+ 16:15:44 ... harder to change if another browser implements it 16:15:46 ack joe 16:16:03 q+ to respond to Joe 16:16:09 joe: possible to make it clear that it is not part of the spec but keep it in implementations 16:17:05 cwilso: problem is we can't have things that are not in the spec but necessary for code that is in web at large 16:17:24 ... cwilso explains impact on interop 16:17:31 +1 16:17:36 ack padenot 16:17:39 q- 16:17:41 q- cwilso 16:18:01 q+ 16:18:04 padenot: possible to offer a monkey patch for people to transition 16:18:07 ack c 16:18:18 cwilso: was thinking through this this AM 16:18:24 ... should be possible 16:18:32 ... not going to be a trivial monkeypatch 16:19:04 ... challenge is to do the post messaging back and forth; hope for the best 16:19:11 q- 16:19:19 ... padenot: it's already broken, so... 16:19:37 ... might take a browser engineer to write the polyfill, give it to all 16:19:53 zakim, take up agendum 6 16:19:53 agendum 6. "communication/education on AudioWorker and changes to SPN" taken up [from olivier] 16:20:07 cwilso: will write blog post 16:20:21 padenot: should start logging into browser console 16:20:36 ... with link to blog post 16:21:52 olivier: wondering about scheduling of publication, blog post etc 16:22:21 cwilso: we need to have the ability to polyfill old version on top of the new 16:23:15 cwilso: think we should publish draft and polyfill ASAP 16:23:24 ... and wait before removing the old one 16:23:46 olivier: can it be marked as deprecated for now 16:23:51 cwilso: sure 16:24:51 olivier: wondering if we could get help from W3C comms... maybe w3c homepage item 16:25:13 action: olivier to reach out to W3C comms, ask for help re deprecation of spn 16:25:13 Created ACTION-110 - Reach out to w3c comms, ask for help re deprecation of spn [on Olivier Thereaux - due 2014-09-04]. 16:25:27 zakim, take up agendum 7 16:25:27 agendum 7. "heartbeat pub" taken up [from olivier] 16:25:55 olivier: we haven't published anything on /TR for a while 16:26:28 [discussing changelog] 16:27:35 olivier: don't think we have published since the data races fix 16:28:36 olivier: sounds like we should publish soon 16:28:57 cwilso: would prefer to get AudioWorker stuff in before 16:29:37 zakim, agenda? 16:29:37 I see 7 items remaining on the agenda: 16:29:38 1. Review of Action Items [from olivier] 16:29:38 2. progress on AudioWorker/ScriptProcessorNode [from olivier] 16:29:38 3. suspend()/resume()/release() on AudioContext [from olivier] 16:29:38 4. Buffer latency hint [from olivier] 16:29:38 5. AOB/Next meeting [from olivier] 16:29:38 6. communication/education on AudioWorker and changes to SPN [from olivier] 16:29:39 7. heartbeat pub [from olivier] 16:29:49 RESOLUTION: publish webaudioapi to /TR after Audioworker changes included 16:30:11 olivier: what about web midi 16:31:12 [noticing link to editor's draft in webmidi is broken] 16:31:58 olivier: what about (first) last call for webmidi? 16:32:12 cwilso: still have open issues, would prefer to go through them and see what needs to be fixed 16:32:21 ... may not stand in the way of a last call 16:33:11 olivier: suggest we review state of webmidi after we publish webaudioapi to TR, with AudioWorker stuff included 16:33:55 RESOLUTION: review webmidi issues after publication of webaudio, decide on Last call then 16:35:19 zakim, take up agendum 3 16:35:19 agendum 3. "suspend()/resume()/release() on AudioContext" taken up [from olivier] 16:35:56 http://cwilso.github.io/web-audio-api/pr_ignore.html#widl-AudioContext-release-Promise 16:36:02 https://github.com/WebAudio/web-audio-api/issues/317 16:37:05 olivier: wondering about release... 16:37:13 ... is that unusual? 16:37:40 padenot: whatwg spec mention explicitely the UA should release when the src attribute is removed 16:38:24 cwilso: no control over when GC is happening 16:38:59 ... problematic for something like audiocontext which takes limited resources 16:39:23 padenot: we have similar issue with FFOS 16:40:22 ACTION: cwilso to ping TAG about novel(?) method to impact GC 16:40:22 Created ACTION-111 - Ping tag about novel(?) method to impact gc [on Chris Wilson - due 2014-09-04]. 16:40:37 https://github.com/WebAudio/web-audio-api/issues/348 16:41:25 [looking at comment thread] 16:41:33 jer? 16:42:45 q+ 16:42:49 jer: still unsure, need more thinking 16:43:01 ... would prefer wrapping into something a little higher level 16:43:09 ... we have this concept in iOS 16:43:34 ack c 16:43:49 cwilso: agree there may be other features we may want to wrap together 16:43:58 ... this is beneath that - about implementation 16:44:30 ... driven by request from google play 16:45:35 ... don't want to rip control of that from the UA 16:46:09 jer: does this have client-side visible effect? 16:46:21 cwilso: only discernable impact is in pattern of power consumption 16:46:40 ... and difference in timing if you have a # of SPN 16:47:05 jer: what if we have latency reporting 16:47:11 cwilso: yes, we would see it 16:47:58 jer: then would have to be careful, if there may be visible effect 16:48:11 cwilso: we have this today already 16:48:35 ... we get different latency numbers 16:50:05 jer: fine with giving control to script, but will be difficult to get api right 16:50:32 cwilso: happy to discuss different APIs 16:51:30 Topic: AudioWorker discussion 16:52:05 cwilso: three things I wanted to bring up 16:52:18 ... 1. request to change audiobuffer to float32 16:52:25 ... ok with that 16:52:41 ... but we should separate event/have different name 16:52:56 cwilso: any objection? 16:53:45 https://www.irccloud.com/pastebin/F9BgLmgV 16:53:46 http://lists.w3.org/Archives/Public/public-audio/2014JulSep/0139.html ? 16:55:33 joe: if we change event name, would probably make it OK 16:55:41 ... someone else made the same point 16:55:52 s/someone else/cwilso 16:56:12 olivier: sounds like consensus 16:56:59 cwilso: plan to make change to float32arrays, change name, mark old one as deprecated 16:57:34 s/1.// 16:58:05 olivier: make it so 16:58:14 zakim, take up agendum 5 16:58:14 agendum 5. "AOB/Next meeting" taken up [from olivier] 16:58:28 must leave now; fractional regrets 16:58:33 -joe 16:58:55 jer: wanted to know status of web audio test suite 16:59:55 olivier: no recent progress but we need to pick up, want to deal with arch changes soon, then focus time at and after TPAC on testing 17:01:43 tentative date for next meeting: 11th Sept 17:02:27 ADJOURNED 17:02:28 -cwilso 17:02:29 -jernoble 17:02:32 rrsagent, make minutes 17:02:32 I have made the request to generate http://www.w3.org/2014/08/28-audio-minutes.html olivier 17:02:33 -kawai 17:02:47 -olivier 17:02:48 -padenot 17:02:48 RWC_Audio()12:00PM has ended 17:02:48 Attendees were +1.617.455.aaaa, +44.303.040.aabb, olivier, joe, rtoyg, kawai, jernoble, padenot 17:03:01 Chair: olivier 17:03:15 rrsagent, make minutes 17:03:15 I have made the request to generate http://www.w3.org/2014/08/28-audio-minutes.html olivier 17:03:37 padenot: tentative regrets for the 11th 17:03:46 olivier: fine, make sure to have moz rep if possible 17:03:49 rrsagent, make minutes 17:03:49 I have made the request to generate http://www.w3.org/2014/08/28-audio-minutes.html olivier 17:04:17 zakim, bye 17:04:17 Zakim has left #audio 17:04:22 rrsagent, bye 17:04:22 I see 2 open action items saved in http://www.w3.org/2014/08/28-audio-actions.rdf : 17:04:22 ACTION: olivier to reach out to W3C comms, ask for help re deprecation of spn [1] 17:04:22 recorded in http://www.w3.org/2014/08/28-audio-irc#T16-25-13 17:04:22 ACTION: cwilso to ping TAG about novel(?) method to impact GC [2] 17:04:22 recorded in http://www.w3.org/2014/08/28-audio-irc#T16-40-22