2017-12-06 22:26:13 +00:00
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[video member=cmuratori stream_platform=twitch stream_username=handmade_hero project=code title="Improving Audio Synchronization" vod_platform=youtube id=qFl62ka51Mc annotator=jacebennett annotator=garlandobloom annotator=Miblo]
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[2:13][Intro]
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[3:31][Audio Sync Conversation Begins (Summary)]
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[4:19][#milkhit]
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[4:28][Why audio sync is an issue]
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[5:30][Ways to minimize the issue]
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[6:40][Creating a Debug Diagram for audio sync debug code]
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[15:37][Finishing up audio sync debug code]
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[23:43][Explaining and debugging debug code]
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[30:00][Bug in debug code encountered]
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[31:31][Addressing bug]
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[35:00][Compiling and running successfully]
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[35:30][Observing weird gaps in sound]
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[35:55][Not tracking frame time correctly ]
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[38:30][Addressing the weird gaps]
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[50:00][Running new code for debug diagram. Sound card read seems unreliable]
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[53:00][Sound stream has to be continuous. Figuring out how far ahead of the current play cursor we should be writing]
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[58:48][Discussing possible solutions to improve audio sync]
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[1:02:35][Improving audio sync]
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[1:07:20][Making a running log]
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[1:08:40][Getting a log of our audio to do some important things]
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[1:12:00][How much granularity we have]
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[1:16:20][Audio latency issue found]
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[1:19:50][Closing remarks]
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2018-03-07 21:48:09 +00:00
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[1:20:28][Q&A][:speech]
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2017-12-06 22:26:13 +00:00
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[1:21:13][Are you setup to use ASI Sound Drivers?]
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[1:22:05][Is your audio pointer code calculating independently of the variable-fixed visual frames per second?]
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[1:24:35][What sort of problems can high audio latency introduce?]
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[1:27:18][Could you use that anonymous union struct trick to access the members of bitmap info header structure more easily?]
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[1:28:47][Question about switching Audio APIs]
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[1:31:42][Why are we ignoring write cursor?]
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[1:33:10][Would splitting related functionality in separate files help?]
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[1:34:10][If we use the play cursor as offset, could we not overwrite previously written audio data?]
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[1:39:37][Comments about Audio APIs again]
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[1:40:14][Would rendering at 60 FPS help with the audio latency?]
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[1:41:16][Could you change latency values?]
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[1:41:33][Is it possible that OBS is affecting the audio latency?]
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2018-03-07 21:48:09 +00:00
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[1:42:02][Closing remarks][:speech]
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2017-12-06 22:26:13 +00:00
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[/video]
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