Andy Ross wrote: > Erik Hofman wrote: > >> I'v uploaded a new wind.wav file >> at:http://www.a1.nl/~ehofman/fgfs/download/ >> Before you can use it you have to aplly a small patch. >> >> > + _crank->set_pitch(1.9); >> > > [...] >> > > + float airspeed_kt = cur_fdm_state->get_V_equiv_kts(); >> > if (rel_wind > 60.0) { // a little off 30kt >> > - float volume = rel_wind/1200.0; // FIXME!!! >> > + float volume = rel_wind/300.0; // FIXME!!! >> > + double pitch = 1.9*(airspeed_kt/67.0); >> > _wind->set_volume(volume); >> > + _wind->set_pitch(pitch); > > > These patches simply look like you're changing unit conventions. The > default pitch of the sample is different, and the volume is scaled > differently. Why not just fix that in the sample instead? Even
Can't be done. The audio energy of the default sound is much higher than the one i have suplied (and remember this is a logarthmic scale ...) > better would be coming up with a "standard" for sound samples, so that > they can all work identically with pitch shifting. Or better still > would be a soft-coded XML description that tells the engine when and > how to play each sound. But replacing one set of magic numbers (1 and > 300) with another (1.9 and 1200) is probably not the right way to go. I know. There is even another problem. The wind sound is caused by the aircrafts haul. Imagine the differences between the X-15 and the Cessna 172. This requires formula translation from XML code ... > > Also, I suspect that you want the rel_wind parameter, and not V_equiv. As far as I knw the pitch is relative to the aircrafts air-speed (and maybe the wind speed, but since it would normally be far less than the aircrafts speeds this can be neglegtet IMHO). > The rel_wind is direction-independant, while V is the forward airspeed > only (it's for display on the airspeed gauge, etc...). Think of a > gusting crosswind while sitting on the runway during a storm. Erik _______________________________________________ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
