arrays - Unpacking 3-byte/24-bit data chunks with Ruby -

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I'm building a pure-ruby WAV file / writing library, I'm learning Ruby Ruby's functionality . It currently works well with 16-bit audio, because I use the string String.unpack ('s *') to draw individual audio samples into the array of signed integers I am capable of wrapping my mind about dealing with 24-bit audio, yet in that case every sample is 3 bytes long. In that case, you would suggest packets / unpack strings, and would I like to change my attitude (using padding or something like that) a lot?

As you used unpack ("s +") , I believe that your sample is in large Andian. Here's a very fast but not practical solution. 

  & gt; & Gt; "ABCDEF" .scan (/.../) Map {| S | | (S.reverse + 0.chr). Unpack ("V")} Flatine = & gt; [4276803, 4474182] # = & gt; [0x414243, 0x444546]
in hex

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