public void UpdateListening()
{
if (Recording)
{
return;
}
var inputPorts = Ports.OfType <NidaQmxChannel>().Where(p => p.Direction == ChannelDirection.Input && p.Status == DevicePortStatus.Active);
var outputPorts = Ports.OfType <NidaQmxChannel>().Where(p => p.Direction == ChannelDirection.Output && p.Status == DevicePortStatus.Active);
_listeningPorts = inputPorts.Concat(outputPorts).ToList();
if (_listeningPorts.Count == 0)
{
return;
}
double maxMultiChannelRate;
var result = NidaQmxHelper.DAQmxGetDevAIMaxMultiChanRate(Name, out maxMultiChannelRate);
if (result < 0)
{
OnError?.Invoke(this, new DeviceErrorArgs(NidaQmxHelper.GetError(result)));
return;
}
SamplerateInput = (int)(maxMultiChannelRate / inputPorts.Count());
SamplesPerChannelInput = (int)(10000.0 * Math.Floor(SamplerateInput / 20.0 / 10000.0));
foreach (var port in inputPorts)
{
port.Samplerate = SamplerateInput;
}
}