Tutorial: Using 2 Sound Sets for An Engine

The 0.15 update added support for multiple engine sound source. You can now use two set of sounds, one for engine and one for exhaust.

To utilize the feature, open your engine jbeam file, find this line:

Code:

"soundConfig": "soundConfig",

then add below

Code:

"soundConfigExhaust": "soundConfigExhaust",

You can now proceed to add a new SoundConfigExhaust section to your engine jbeam.

Code:

"soundConfigExhaust": {
        "sampleName": "I4",
        "mainGain": -14,
        "maxLoadMix": 0.65,
        "minLoadMix": 0,
        "onLoadGain":1,
        "offLoadGain":0.7,
        "eqLowGain": 10,
        "eqLowFreq": 400,
        //"eqLowWidth": 0,
        "eqHighGain": -5,
        "eqHighFreq": 6000,
        //"eqHighWidth": 0.5,
        "lowCutFreq":80,
        "fundamentalFrequencyCylinderCount":4
        "eqFundamentalGain": 10
    },

When done correctly, your code should look like this.

Spoiler: Resulting Lines

Code:

        "soundConfig": "soundConfig",
        "soundConfigExhaust": "soundConfigExhaust",
    },
    "soundConfig": {
        "sampleName": "V8_2",
        "mainGain": -14,
        "maxLoadMix": 0.6,
        "minLoadMix": 0,
        "onLoadGain":1,
        "offLoadGain":1,
        "eqLowGain": -5,
        "eqLowFreq": 150,
        //"eqLowWidth": 0,
        "eqHighGain": -5,
        "eqHighFreq": 6000,
        //"eqHighWidth": 0,
        "lowCutFreq":90,
        //"fundamentalFrequencyCylinderCount":8
        //"eqFundamentalGain": 15,
    },
    
    "soundConfigExhaust": {
        "sampleName": "I4",
        "mainGain": -14,
        "maxLoadMix": 0.65,
        "minLoadMix": 0,
        "onLoadGain":1,
        "offLoadGain":0.7,
        "eqLowGain": 10,
        "eqLowFreq": 400,
        //"eqLowWidth": 0,
        "eqHighGain": -5,
        "eqHighFreq": 6000,
        //"eqHighWidth": 0.5,
        "lowCutFreq":80,
        "fundamentalFrequencyCylinderCount":4
        "eqFundamentalGain": 10
    },

The above code is Barstow's engine jbeam. Engine sound is using stock V8_2 sample set, and exhaust is using I4 sample set.

Example Sound result:


Further reading about engine sound basics: https://wiki.beamng.com/Sound