homebrew-core/Formula/speech-tools.rb
2015-11-19 17:03:53 +01:00

58 lines
1.9 KiB
Ruby

class SpeechTools < Formula
desc "C++ general speech software library from the University of Edinburgh"
homepage "http://festvox.org/docs/speech_tools-2.4.0/"
url "http://festvox.org/packed/festival/2.4/speech_tools-2.4-release.tar.gz"
sha256 "fbc2482c443919aa79d2e599d6a5faee4e793df55a79ef377f1dc7e8ba237010"
bottle do
cellar :any
sha256 "48091e873f0d038ebc6e46ab3ca7c1e494d061afab3dae64e1dbd594e4afccbe" => :yosemite
sha256 "dca2c0deebfd3bd6aeba1cfaa4f72a3cc29b90e879fd51ed38c2524d1789eaad" => :mavericks
sha256 "16895a28e900f2b7d209d2c4dda0228024c6da9627189f356c631f1b8c990c27" => :mountain_lion
end
conflicts_with "align", :because => "both install `align` binaries"
def install
ENV.deparallelize
system "./configure"
system "make"
# install all executable files in "main" directory
bin.install Dir["main/*"].select { |f| File.file?(f) && File.executable?(f) }
end
test do
rate_hz = 16000
frequency_hz = 100
duration_secs = 5
basename = "sine"
txtfile = "#{basename}.txt"
wavfile = "#{basename}.wav"
ptcfile = "#{basename}.ptc"
File.open(txtfile, "w") do |f|
scale = 2 ** 15 - 1
f.puts Array.new(duration_secs * rate_hz) { |i| (scale * Math.sin(frequency_hz * 2 * Math::PI * i / rate_hz)).to_i }
end
# convert to wav format using ch_wave
system "ch_wave", txtfile,
"-itype", "raw",
"-istype", "ascii",
"-f", rate_hz.to_s,
"-o", wavfile,
"-otype", "riff"
# pitch tracking to est format using pda
system "pda", wavfile,
"-shift", (1 / frequency_hz.to_f).to_s,
"-o", ptcfile,
"-otype", "est"
# extract one frame from the middle using ch_track, capturing stdout
pitch = `ch_track #{ptcfile} -from #{frequency_hz * duration_secs / 2} -to #{frequency_hz * duration_secs / 2}`.strip
# should be 100 (Hz)
assert_equal frequency_hz, pitch.to_i
end
end