class Sound::FormatLibrary::MMLib::WAVEFORMATEX
Define WAVEFORMATEX
which defines the format (PCM in this case) and various properties like sampling rate, number of channels, etc.
Public Class Methods
new(nSamplesPerSec = 44100, wBitsPerSample = 16, nChannels = 1, cbSize = 0)
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Initializes struct with sensible defaults for most commonly used values. While setting these manually is possible, please be sure you know what changes will result in, as an incorrectly set struct will result in unpredictable behavior.
# File lib/sound/format_library/mmlib.rb, line 38 def initialize(nSamplesPerSec = 44100, wBitsPerSample = 16, nChannels = 1, cbSize = 0) self[:wFormatTag] = WAVE_FORMAT_PCM self[:nChannels] = nChannels self[:nSamplesPerSec] = nSamplesPerSec self[:wBitsPerSample] = wBitsPerSample self[:cbSize] = cbSize self[:nBlockAlign] = (self[:wBitsPerSample] >> 3) * self[:nChannels] self[:nAvgBytesPerSec] = self[:nBlockAlign] * self[:nSamplesPerSec] end