class SpeechTools < Formula desc "C++ 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_skip_relocation sha256 "fdd91c9e012e6e6849c202dbeaa5fcec9ae740e915f350e5881f3ee0aafcea60" => :sierra sha256 "f61c67afcd6c5f54b402183cb5148cf51cad67c95ce01bb3db0df57d384cc7e3" => :el_capitan 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