// Generates the golden files. See test/sounds_test.go for actual test.
func main() {
// Singlethreaded for now...
runtime.GOMAXPROCS(4)
// Parse flags...
sampleRate := s.CyclesPerSecond
minFreq := flag.Float64("minFreq", 110.0, "minimum frequency")
maxFreq := flag.Float64("maxFreq", 14080.0, "maximum frequency")
bpo := flag.Int("bpo", 24, "Buckets per octave")
flag.Parse()
remainingArgs := flag.Args()
if len(remainingArgs) < 1 || len(remainingArgs) > 2 {
panic("Required: <input> [<input>] filename arguments")
}
inputFile := remainingArgs[0]
inputFile2 := inputFile
if len(remainingArgs) == 2 {
inputFile2 = remainingArgs[1]
}
inputSound := f.Read(inputFile)
// inputSound := s.NewTimedSound(s.NewSineWave(440.0), 1000)
inputSound.Start()
defer inputSound.Stop()
// minFreq, maxFreq, bpo := 110.0, 14080.0, 24
params := cq.NewCQParams(sampleRate, *minFreq, *maxFreq, *bpo)
constantQ := cq.NewConstantQ(params)
cqInverse := cq.NewCQInverse(params)
latency := constantQ.OutputLatency + cqInverse.OutputLatency
// Two inputs version - TODO, switch back to input + output.
inputSound2 := f.Read(inputFile2)
inputSound2.Start()
defer inputSound2.Stop()
constantQ2 := cq.NewConstantQ(params)
startTime := time.Now()
// TODO: Skip the first 'latency' samples for the stream.
fmt.Printf("TODO: Skip latency (= %d) samples)\n", latency)
columns := constantQ.ProcessChannel(inputSound.GetSamples())
columns2 := constantQ2.ProcessChannel(inputSound2.GetSamples())
samples := cqInverse.ProcessChannel(mergeChannels(columns, columns2))
asSound := s.WrapChannelAsSound(samples)
// if outputFile != "" {
// f.Write(asSound, outputFile)
// } else {
output.Play(asSound)
// }
elapsedSeconds := time.Since(startTime).Seconds()
fmt.Printf("elapsed time (not counting init): %f sec\n", elapsedSeconds)
}
// Generates the golden files. See test/sounds_test.go for actual test.
func main() {
// Needs to be at least 2 when doing openGL + sound output at the same time.
runtime.GOMAXPROCS(3)
sampleRate := s.CyclesPerSecond
minFreq := flag.Float64("minFreq", 27.5*4.0, "minimum frequency")
maxFreq := flag.Float64("maxFreq", 3520.0/4.0, "maximum frequency")
octaves := 3
bpo := flag.Int("bpo", 72, "Buckets per octave")
flag.Parse()
remainingArgs := flag.Args()
argCount := len(remainingArgs)
if argCount < 1 || argCount > 2 {
panic("Required: <input> [<output>] filename arguments")
}
inputFile := remainingArgs[0]
outputFile := ""
if argCount == 2 {
outputFile = remainingArgs[1]
}
// minFreq, maxFreq, bpo := 110.0, 14080.0, 24
params := cq.NewCQParams(sampleRate, *minFreq, *maxFreq, *bpo)
spectrogram := cq.NewSpectrogram(params)
inputSound := f.Read(inputFile)
// fmt.Printf("TODO: Go back to reading %s\n", inputFile)
// inputSound := s.NewTimedSound(
// s.SumSounds(
// s.NewSineWave(440.00),
// // s.NewSineWave(440.00),
// s.NewSineWave(698.46),
// ), 10000)
inputSound.Start()
defer inputSound.Stop()
startTime := time.Now()
if outputFile != "" {
// Write to file
columns := spectrogram.ProcessChannel(inputSound.GetSamples())
outputBuffer := bytes.NewBuffer(make([]byte, 0, 1024))
width, height := 0, 0
for col := range columns {
for _, c := range col {
cq.WriteComplex(outputBuffer, c)
}
if width%1000 == 0 {
fmt.Printf("At frame: %d\n", width)
}
width++
height = len(col)
}
fmt.Printf("Done! - %d by %d\n", width, height)
ioutil.WriteFile(outputFile, outputBuffer.Bytes(), 0644)
} else {
// No file, so play and show instead:
soundChannel, specChannel := splitChannel(inputSound.GetSamples())
go func() {
columns := spectrogram.ProcessChannel(specChannel)
toShow := util.NewSpectrogramScreen(882, *bpo*octaves, *bpo)
toShow.Render(columns, 1)
}()
output.Play(s.WrapChannelAsSound(soundChannel))
}
elapsedSeconds := time.Since(startTime).Seconds()
fmt.Printf("elapsed time (not counting init): %f sec\n", elapsedSeconds)
if outputFile == "" {
// Hang around to the view can be looked at.
for {
}
}
}
