func paStreamParameters(p StreamDeviceParameters, fmt C.PaSampleFormat) *C.PaStreamParameters {
return &C.PaStreamParameters{
device: p.Device.index,
channelCount: C.int(p.Channels),
sampleFormat: fmt,
suggestedLatency: C.PaTime(p.Latency.Seconds()),
}
}
func duration(paTime C.PaTime) time.Duration {
return time.Duration(paTime * C.PaTime(time.Second))
}