func main() {
var err error
e := func() {
if err != nil {
fmt.Printf("Error: %v\n", err)
os.Exit(1)
}
}
devs, err := tm.ListDevices()
e()
showDevices(devs)
dev, err := selectDevice(devs)
e()
fmt.Printf("Device selected: %v\n", dev.Name)
datachan, closechan, errchan, err := tm.MakeInputChannel(dev)
e()
fmt.Println("Got data channel, etc....")
go func() {
for err := range errchan {
fmt.Printf("Error from errchan: $v\n", err)
}
}()
fmt.Println("Attempting to read from data channel....")
tms := <-datachan
fmt.Println("Got first sample!")
go func() { closechan <- true }()
fmt.Printf("We have data at %v Hz! here it is: %v\n", tms.SampleHz, tms.Samples)
ffted := tm.SamplesToFrequencies(tms)
fmt.Printf("We have a Fast Fourier Transformed sample with consecutive frequencies varying by %v Hz! Here are the frequencies: %v\n", ffted.DeltaHz, ffted.Freqs)
unffted := tm.FrequenciesToSamples(ffted)
fmt.Printf("Back from FFT! We have data at %v Hz! here it is: %v\n", unffted.SampleHz, unffted.Samples)
}
func main() {
var tms tm.TMSnippet
tms.SampleHz = 1 // Only kept track of by FFT functions, not used for actual FFT
s := sinArr(5, 100)
tms.Samples = make([]float32, len(s))
for i, v := range s {
tms.Samples[i] = float32(v)
}
fmt.Printf("Samples: %v\n", (tms.Samples))
freqs := tm.SamplesToFrequencies(&tms)
fmt.Printf("Frequencies: %v\n", (freqs.Freqs))
}