const float AnalogSignal::EnvelopeThreshold = 256.0f;
-AnalogSignal::AnalogSignal(pv::SigSession &session, const sr_probe *const probe,
+AnalogSignal::AnalogSignal(pv::SigSession &session, sr_probe *const probe,
shared_ptr<data::Analog> data) :
Signal(session, probe),
_data(data),