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vgr's profile
Venkatesh Rao
Venkatesh Rao
Venkatesh Rao
@vgr

Tweets

Venkatesh Rao

@vgr

Conversational account. For work follow @ribbonfarm, @breaking_smart, @artofgig. Tweets are 90% vacuous views, apathetically held. Mediocritopian. IKEA builder.

Los Angeles, CA
venkateshrao.com
Joined August 2007

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    1. Venkatesh Rao‏ @vgr Sep 16
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      What’s the easiest way to record like 4-12 hours of low-information audio (a ticking clock basically) most compactly?

      10 replies 0 retweets 5 likes
    2. Chris Rentsch‏ @crentsch Sep 16
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      Replying to @vgr

      You can get 12 hrs of ticking clock to fit in ~1 kB by playing a 00:00:01 recording with this setting on 😉pic.twitter.com/zrMGDlPr0W

      1 reply 0 retweets 0 likes
      Venkatesh Rao‏ @vgr Sep 16
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      Replying to @crentsch

      Venkatesh Rao Retweeted Venkatesh Rao

      Heh, I’m actually building a mechanical clock and want to DFT the uneven ticking to investigate geartrain friction. 12h= one cycle through all states of geartrain I think.https://twitter.com/vgr/status/1302385904040833024 …

      Venkatesh Rao added,

      0:10
      Venkatesh Rao @vgr
      Finished assembling my clock but it stops after like 5 tick ticks 😖 pic.twitter.com/S6Ul6pJI9U
      Show this thread
      7:20 PM - 16 Sep 2020
      • 4 Likes
      • DAVID SUGARMAN Star Simpson Jason Pepas Bombadil Brin
      3 replies 0 retweets 4 likes
        1. Chris Rentsch‏ @crentsch Sep 16
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          Replying to @vgr

          Nice project. Rough cut wood is brutal in a low friction device...even ambient humidity will affect close-tolerance fits. Your perseverance will tested.

          0 replies 0 retweets 0 likes
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        1. Hareksu‏ @hareksu Sep 16
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          Replying to @vgr @crentsch

          Well, you could always process it live, detect the peaks of the ticking and register the timings. That would be a pretty dense way of storing it, thought definitely not lossless :-P

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        1. New conversation
        2. Jason Pepas‏ @cellularmitosis Sep 16
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          Replying to @vgr @crentsch

          Oh, so you just need the timing information? You might look at ditching the audio and using a peak detector and only record time stamps (or time deltas). A cheap mic into something like an arduino which spits out the timing via a serial port

          2 replies 0 retweets 0 likes
        3. Venkatesh Rao‏ @vgr Sep 16
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          Replying to @cellularmitosis @crentsch

          Yes I was thinking of that too... though the raw signal would have harmonics and crap, so it’s not just the peak times

          0 replies 0 retweets 1 like
        4. End of conversation

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