load.wave
You aren't pushing any envelope... you slit it open and fell out somewhere on the sidewalk. I tossed your question into Google and it came back with [1] and [2]. Please do that yourself instead whenever you are tempted to go off topic. [1] https://stackoverflow.com/questions/25940376/whats-the-actual-data-in-a-wav-file [2] https://en.m.wikipedia.org/wiki/Digital_audio
On February 1, 2019 2:20:57 AM PST, Nick Wray via R-help <r-help at r-project.org> wrote:
I have been given a wav file of train locomotive noise - literally something you can play back and hear. Using the audio package and the load.wave function I have got a 1.5 million element vector which visually at least has some periodicity in certain parts and does not seem to be completely random. Most elements (99%) are within a range of about -0.14 to +0.14 with occasional outliers. Beneath is a typical short segment. This is the head: sample rate: 16000Hz, mono, 16-bits [1] -3.051851e-05 6.103516e-05 -6.103702e-05 3.051758e-05 3.051758e-05 -1.220740e-04 Most elements (99%) are within a range of about -0.14 to +0.14 with occasional outliers This is the same kind of output as is illustrated in the documentation: https://cran.r-project.org/web/packages/seewave/vignettes/seewave_IO.pdf What I am not sure about, and I can't find any clear explanation, is what these elements actually stand for? I would have thought that one needed as a minimum both volume and frequency ie a two dimensional vector but as far as I can tell there is only one single vector. I'm aware that this question is pushing the envelope of R help but... Thanks, Nick Wray
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Sent from my phone. Please excuse my brevity.