16:56:29 RRSAgent has joined #audio 16:56:29 logging to http://www.w3.org/2015/01/22-audio-irc 16:56:31 RRSAgent, make logs world 16:56:31 Zakim has joined #audio 16:56:33 Zakim, this will be 28346 16:56:33 ok, trackbot; I see RWC_Audio()12:00PM scheduled to start in 4 minutes 16:56:34 Meeting: Audio Working Group Teleconference 16:56:34 Date: 22 January 2015 16:56:45 Chair: mdjp 16:56:52 Agenda+ Date of Next Meeting 16:56:59 Agenda+ Working group session at the Web Audio Conference 16:57:10 Agenda+ Issue 419 biquad filter formulas. Can we consider dropping the cookbook formulas and just use the actual implementation. 16:57:16 Agenda+ Issue 455 handling the deprication of doppler in the panner node. 16:57:22 Agenda+ Summarise list discussion of the proposal for multiple I/O audio worker 16:57:27 Agenda+ Audio Worker Factory Model (if available otherwise moved to next call) 16:57:32 Agenda+ Assign actions to progress the issue of inter-app audio and low level audio I/O. 16:57:37 Agenda+ AOB 16:57:41 rrsagent, pointer? 16:57:41 See http://www.w3.org/2015/01/22-audio-irc#T16-57-41 16:57:47 agenda? 16:58:20 RWC_Audio()12:00PM has now started 16:58:40 +??P3 16:58:51 zakim, ??P3 is me 16:58:51 +mdjp; got it 16:59:34 + +1.650.253.aaaa 16:59:46 rtoyg_m has joined #audio 17:00:46 BillHofmann has joined #audio 17:01:01 + +1.510.387.aabb 17:01:12 zakim, aabb is me 17:01:12 +BillHofmann; got it 17:01:16 zakim, aaaa is me 17:01:16 +cwilso; got it 17:01:23 zakim, cwilso has rtoyg 17:01:23 +rtoyg; got it 17:01:48 regrets from Hongchan also, who is also at NAMM 17:02:26 gmandyam has joined #audio 17:02:35 zakim, pick a victim 17:02:35 Not knowing who is chairing or who scribed recently, I propose mdjp 17:02:38 zakim, pick a victim 17:02:38 Not knowing who is chairing or who scribed recently, I propose BillHofmann 17:02:56 zakim, take up agendum 1 17:02:56 agendum 1. "Date of Next Meeting" taken up [from mdjp] 17:02:58 +gmandyam 17:04:24 <_665> _665 has joined #audio 17:04:36 next meeting Feb 5 - cwilso can join beginning, propose we keep the rhythm going. 17:04:46 zakim, take up agendum 2 17:04:46 agendum 2. "Working group session at the Web Audio Conference" taken up [from mdjp] 17:05:34 MikeAssenti has joined #audio 17:06:04 jdsmith has joined #audio 17:06:05 +jdsmith 17:06:23 zakim, take up agendum 3 17:06:23 agendum 3. "Issue 419 biquad filter formulas. Can we consider dropping the cookbook formulas and just use the actual implementation." taken up [from mdjp] 17:06:29 hrrr, I'm late 17:06:41 + +1.415.558.aacc 17:07:06 https://github.com/WebAudio/web-audio-api/issues/419 17:07:52 +Doug_Schepers 17:08:32 BillHofmann asks if the implementations are consistent 17:08:38 Safari/Chrome do, per rtoy 17:08:55 Firefox seems to match 17:09:20 rtoy proposes making the defacto implementation the standard 17:09:51 hearing no objections, will make that the decision 17:10:28 (Introducing Mike Assenti) 17:10:31 zakim, take up agendum 4 17:10:31 agendum 4. "Issue 455 handling the deprication of doppler in the panner node." taken up [from mdjp] 17:10:50 https://github.com/WebAudio/web-audio-api/issues/455 17:12:28 rtoy notes that the old panner node will be deprecated, so deprecating doppler in it wouldn't we worth it 17:13:25 cwilso notes that we need to define a new panner/listener anyway 17:13:56 +[IPcaller] 17:14:09 Zakim, IPcaller is me 17:14:09 +padenot; got it 17:14:19 BillHofmann notes that we ought note why we've closed 455, also - what is the issue for the rework? 17:14:26 https://github.com/WebAudio/web-audio-api/issues/372 17:15:48 rtoy notes that there is some objection about deprecation of doppler. 17:16:15 cwilso gives more background - perhaps the objections aren't as critical, so perhaps no real problem getting rid of it when the new nodes are in place 17:17:24 BillHofmann asks what happens re deprecation - it actually won't be in the 1.0 spec per cwilso. Chrome has disabled doppler already. 17:18:06 note that existing demos using doppler, per cwilso, are broken anyway 17:18:18 ah I am 17:18:24 Asks whether Firefox has disabled doppler 17:18:45 No, per padenot. easy patch - will do it when it makes sense. 17:19:26 asks whether it's been marked as deprecated 17:19:43 cwilso notes that an in-progress branch marks it as deprecated. 17:20:09 zakim, take up agendum 5 17:20:09 agendum 5. "Summarise list discussion of the proposal for multiple I/O audio worker" taken up [from mdjp] 17:21:24 +??P5 17:21:48 q+ 17:22:46 -??P5 17:23:13 shepazu: re previous item - asks whether it makes sense to say it was deprecated - that's unusual - should there be a note at the end? 17:24:13 ack shepazu 17:24:19 mjdp: spec will say it's deprecated and point at the new node 17:24:57 q+ 17:25:16 http://webaudio.github.io/web-audio-api/#the-scriptprocessornode-interface---deprecated 17:25:31 mjdp: notes how ScriptProcessorNode indicates deprecation 17:26:17 q+ 17:26:26 ack BillHofmann 17:26:36 q- 17:27:29 ack rtoyg_m 17:28:07 rtoyg_m: asks whether we'd note *all* the old stuff in this section? notes he gets bugs filed on very old items. 17:28:26 shepazu: not unusual to have a (smallish) changes section 17:28:40 Agenda? 17:30:58 http://cwilso.github.io/web-audio-api/#widl-AudioContext-createAudioWorker-AudioWorkerNode-DOMString-scriptURL-Array-inputs-Array-outputs 17:31:42 -gmandyam 17:32:00 cwilso: notes no real additional feedback since last meeting; goal to replicate behavior in merger/splitter; since then he's realized that's not a good model 17:32:30 cwilso: suggests removing dynamic bit of audioworker - fixed input/output node count is proposed 17:33:26 cwilso: output channels might change, input channels are handled by channel count in channel mode 17:34:15 http://cwilso.github.io/web-audio-api/#widl-AudioContext-createAudioWorker-AudioWorkerNode-DOMString-scriptURL-Array-inputs-Array-outputs 17:34:22 cwilso: notes if you hand AudioWorker a script url, you'll get stereo in/out; if you hand a parameter in addition, will default to number of channels - see link above 17:35:01 http://cwilso.github.io/web-audio-api/#the-audioprocessevent-interface 17:37:03 cwilso: this approach makes even a single in/out situation for a handler event require a double dereference. could provide separate event handler. 17:37:20 mdjp: asks for objections; feedback on list 17:37:28 cwilso: haven't provided factory method for this. 17:38:29 cwilso: thinks we can consider feedback closed 17:38:33 zakim, take up agendum 6 17:38:33 agendum 6. "Audio Worker Factory Model (if available otherwise moved to next call)" taken up [from mdjp] 17:38:38 mjdp: agrees 17:39:19 zakim, take up agendum 7 17:39:19 agendum 7. "Assign actions to progress the issue of inter-app audio and low level audio I/O." taken up [from mdjp] 17:39:31 agendum 6 moved to next meeting - proposal not ready 17:40:53 mdjp: notes that this is a bigger issue than "how do we run vsts in webaudio" - perhaps worthwhile to bring up at WAC next week 17:41:23 mdjp: how can the WG support implementers to help get to a resolution with this? 17:42:02 cwilso: need to go back to the use cases documents, decide how committed we are, find implementers in native and get their feedback 17:42:35 cwilso: morphed to "support VSTs", perhaps really more like iOS "InteropAudio" 17:43:30 s/InteropAudio/InterappAudio/ 17:43:47 mdjp: split item 17:44:27 mdjp: proposal: first, review use cases and bring relevant ones to the next meeting - mdjp volunteers 17:44:49 mdjp: first: Inter-app audio 17:45:32 http://w3c.github.io/mediacapture-output/ 17:45:44 mdjp: second: access to low level audio device - 17:47:04 cwilso: working with Justin/Victoria, they have an enumeration API; what we need is a way to direct a stream to a sink 17:48:16 cwilso: we need a spec'd way to create a sink using this API, and knowing what the characteristics of it, how you stream to it, etc. 17:49:21 cwilso: not sure *where* it sits between WebAudio, WebRTC, etc., but we need to ensure it gets dealt with 17:49:30 mdjp: asks whether we ought document our requirements 17:50:26 mdjp: will create an issue/etc for tracking this 17:50:45 zakim, take up agendum 8 17:50:45 agendum 8. "AOB" taken up [from mdjp] 17:51:18 make logs member 17:51:25 bookmark 17:51:28 -jdsmith 17:51:31 -padenot 17:51:32 -Doug_Schepers 17:51:37 - +1.415.558.aacc 17:51:40 set logs world 17:51:43 -mdjp 17:51:46 -cwilso 17:51:47 draft minutes 17:52:01 rrsagent, make logs member 17:52:06 rrsagent, bookmark 17:52:06 See http://www.w3.org/2015/01/22-audio-irc#T17-52-06 17:52:11 rrsagent, set logs world 17:52:17 rrsagent, draft minutes 17:52:17 I have made the request to generate http://www.w3.org/2015/01/22-audio-minutes.html BillHofmann 17:52:22 rrsagent, bye 17:52:22 I see no action items