func TestAnalyze(t *testing.T) {
var i sndfile.Info
file, err := sndfile.Open("ok.aiff", sndfile.Read, &i)
if err != nil {
t.Fatal(err)
}
s := spectral_analyze(file, 512, 1024)
if err != nil {
t.Fatal(err)
}
if len(s.Freqs) != 511 || len(s.Frames) != 512 {
t.Errorf("unexpected size for data members freqs %d frames %d", len(s.Freqs), len(s.Frames))
}
f, err := os.Create("spectrum.csv")
if err != nil {
return
}
fmt.Fprint(f, "freq")
for j := 0; j < len(s.Frames[0]); j++ {
fmt.Fprintf(f, ",%d", j)
}
fmt.Fprint(f, "\n")
for i := 0; i < len(s.Freqs); i++ {
fmt.Fprintf(f, "%f", s.Freqs[i])
for j := 0; j < len(s.Frames[i]); j++ {
fmt.Fprintf(f, ",%f", s.Frames[i][j])
}
fmt.Fprint(f, "\n")
}
}
func main() {
var i sndfile.Info
file, err := sndfile.Open(os.Args[1], sndfile.Read, &i)
if err != nil {
panic(err)
}
length := flag.Int("length", 512, "fseq length")
fftbins := flag.Int("fftbins", 1024, "FFT bins")
flag.Parse()
f := fseq.CreateFseq(file, *length, *fftbins)
fmt.Printf("%v\n", f)
if err != nil {
panic(err)
}
}