• Posts
  • RSS
  • ◂◂RSS
  • Contact

  • Compressing Dance Recordings With FLAC

    January 18th, 2014
    music, tech  [html]
    When the Free Raisins run our own sound I record our playing to listen back to later. I keep these recordings, but seven tracks at 1GB each starts to add up. I could compress them as mp3s, but I might want the full-quality versions some day. I looked into lossless audio compression, and FLAC seems to be the most widely supported open codec. While I've seen people find compression ratios of about 50% for FLAC, I was expecting better than this because while I generally record a whole 3hr performance only some of that has much signal. Compressing at level 8 I ended up with files 67% smaller than whan I started:

    (The files at the far left, squished down to 14.3% of their original size, consist entirely of silence. This is because when using my vsl1818 with Audacity I can only record tracks 1 through N. If for some reason we've set things up so no one is plugged into track 4, I still end up with a recording of that track, 3hr of silence. Ignore these in computing the average and flac only managed to make things 66% smaller.)

    I could have combined multiple tracks from the same dance into one multi-track flac for better compression, but this seemed like too much hassle and too much chance of making files that would be hard to work with later.

    Comment via: google plus, facebook

    Recent posts on blogs I like:

    Governance in Rich Liberal American Cities

    Matt Yglesias has a blog post called Make Blue America Great Again, about governance in rich liberal states like New York and California. He talks about various good government issues, and he pays a lot of attention specifically to TransitMatters and our …

    via Pedestrian Observations November 19, 2020

    Collections: Why Military History?

    This week, I want to talk about the discipline of military history: what it is, why it is important and how I see my own place within it. This is going to be a bit of an unusual collections post as it is less about the past itself and more about how we st…

    via A Collection of Unmitigated Pedantry November 13, 2020

    Misalignment and misuse: whose values are manifest?

    Crossposted from world spirit sock puppet. AI related disasters are often categorized as involving misaligned AI, or misuse, or accident. Where: misuse means the bad outcomes were wanted by the people involved, misalignment means the bad outcomes were wan…

    via Meteuphoric November 13, 2020

    more     (via openring)


  • Posts
  • RSS
  • ◂◂RSS
  • Contact