Ground roll sounds

1st Official Post

    Hello!

    I've been out of the loop for a while, pleasantly surprised to see the A319, runs perfectly in VR. I was able to modify some sounds on the A320 years ago in FS2, I'd like to do the same for FS4 with the A319 (For some reason the sound designers leave out the ground roll sound) Feels very strange landing and not hearing the rumble from the gear etc, a bit of an anti climax with large speakers


    What I'd like to do is increase the ground roll sound (if there actualy is one?) Like in MS2020/24 taxiing at 20knots gives a low rumble, by rotate speed the sound is quite loud until airborne.

    From memory the TMD files need adjusting? Any assistance, or I'm willing to pay if some smart person is able to adjust the files for me. All other sounds are great.


    Also, is there a way to force the CFM model to use the IAE sounds, for some reason the CFM does not sound realistic, they nailed it with IAE


    Thanks

    Below is what I see in the a319.TMD file


    <[soundinput][HydraulicPTUBarkSound][]
    <[uint32][InputID][HydraulicPTUBarkSound.Output]>
    >
    <[soundmultiply][HydraulicPTUBarkVolume][]
    <[string8][Input0][MasterVolumePTU.Output]>
    <[string8][Input1][0.15]>
    >
    <[soundmapping][HydraulicPTUBarkPitch][]
    <[string8][Input][PowerTransferUnitSpeed.Output]>
    <[tmvector2d][Map][ (0.0 0.8) (0.3 1.0) (2.0 1.5) ]>
    >
    <[sound_multi][SoundHydraulicPTUBarkLeft][]
    <[uint32][PositionID] [Fuselage.R]>
    <[uint32][OrientationID][Fuselage.Q]>
    <[uint32][VelocityID] [Fuselage.V]>
    <[string8][InputTrigger][HydraulicPTUBarkSound.Output]>
    <[string8][InputVolume] [HydraulicPTUBarkVolume.Output]>
    <[string8][InputPitch] [HydraulicPTUBarkPitch.Output]>
    <[string8][SoundFile] [hydraulics_ptu_bark_left.wav]>
    <[tmvector3d][R0][ -2.05373 0.5 -1.69735 ]>
    <[float64][Radius][6.0]>
    <[float64][Range][80.0]>
    <[bool][Internal][true]>
    <[bool][External][true]>

    • Official Post

    The sound is now defined in several different files. In the base folder of the aircraft you find the system.tmd which defines sounds that all variants of the A320 family have in common. These are the ground roll sounds, wind sounds, etc.

    Then there are two folders for each engine type which contain the sound files and a system.tmd file to define the engine sound playback.

    Lastly there is the TMD file of the aircraft itself which defines sounds that are not included in the base and not in the engine folders.

    To swap the engine sounds you first need to make a backup of the engine_cfm folder (copy it outside of the Steam folder) and then copy all of the TSB Files from the IAE over to the CFM folder. Them edit the system.tmd in the CFM folder and replace the whole sound section of the file by the section copied from the CFM variant. That should change the sounds but of course the CFM engine also has different rotation speeds (N1 and N2) and it may not sound just as good.

    Thanks again Jan, I was able to get the volumes working perfectly on my setup. I was curious about adding my own ground roll wav file, am trying to locate what folder to copy it too, or do I have to convert the wav file?


    <[soundloop][GroundRollRight][]
    <[uint32][PositionID] [Fuselage.R]>
    <[uint32][OrientationID][Fuselage.Q]>
    <[uint32][VelocityID] [Fuselage.V]>
    <[string8][InputVolume] [GroundRollVolumeRight.Output]>
    <[string8][InputPitch] [GroundRollPitchRight.Output]>
    <[string8][SoundFile] [ground_roll.wav]>
    <[tmvector3d][R0][ -3.02504 -4.26684 -3.85334 ]>
    <[float64][Radius][10.0]>
    <[float64][Range][500.0]>