<html> <head> <style></style> </head> <body class='hmmessage'><div dir='ltr'> Hello Marcin <div> > AFAIR adding casting to uint64 should help > > I mean > > g_object_set (G_OBJECT (spectrum), "bands", 11025, "interval", > (uint64)200000000, "threshold", -80, NULL); Yes casting to guint64 works; thank you so much! > > However, when I start the app in command line, I always get the error > > message  : > > > > GLib-GObject-WARNING **: g_object_set_valist: object class `GstSpectrum' has > > no property named `' > > > > My code looks like this : > > > > spectrum = gst_element_factory_make ("spectrum", "spectrum"); > > g_assert (spectrum); > > g_object_set (G_OBJECT (spectrum), "bands", 11025, "interval", 200000000, > > "threshold", -80, NULL); > > Victor </div> </div></body> </html>