[GUIDE] Framework DSP — better Linux audio

This is the best profile I’ve used yet. I have a few comments on how I tweaked the config to my liking.

I noticed that the Filter effect was cutting away audible bass frequencies. I decreased the cutoff frequency as well as increased the slope. This made the bass come through much better.

I’ve (personally) found that the Bass Enhancer is not needed, as the bass comes through well enough already. In my config below, I’ve left the effect in, but disabled, as there’s no serious issues with it, just that I didn’t like the sound of it.

In terms of IRs, the 27dB IR is indeed best. The problem that it “cuts volume too much” is not a problem, we simply have to increase the gain. Note that the gain has to come before the compressor, not the limiter, or you will hear very audible clipping artifacts. In my config, I simply added the gain at the output of the Convolver.

The gain unfortunately gives very audible artifacts in the bass frequencies, so I set the Makeup for Band 1 of the Multiband Compressor to 0 dB, which resolved the distortion.

In total, the sound is much bigger, with the bass louder, and the trebles sound clearer to me as well.

This is my current config (replace %CFG% with the path to your config file):

{
    "output": {
        "bass_enhancer#0": {
            "amount": 4.0,
            "blend": 0.0,
            "bypass": true,
            "floor": 10.0,
            "floor-active": true,
            "harmonics": 10.0,
            "input-gain": 0.0,
            "output-gain": 0.0,
            "scope": 200.0
        },
        "blocklist": [],
        "convolver#0": {
            "autogain": true,
            "bypass": false,
            "input-gain": 0.0,
            "ir-width": 100,
            "kernel-path": "%CFG%/irs/IR_22ms_27dB_5t_15s_0c.irs",
            "output-gain": 6.0
        },
        "filter#0": {
            "balance": 0.0,
            "bypass": false,
            "equal-mode": "IIR",
            "frequency": 60.0,
            "gain": 0.0,
            "input-gain": 0.0,
            "mode": "RLC (BT)",
            "output-gain": 0.0,
            "quality": 16.0,
            "slope": "x16",
            "type": "High-pass",
            "width": 1.0
        },
        "limiter#0": {
            "alr": false,
            "alr-attack": 5.0,
            "alr-knee": 0.0,
            "alr-release": 50.0,
            "attack": 2.0,
            "bypass": false,
            "dithering": "None",
            "external-sidechain": false,
            "gain-boost": true,
            "input-gain": 0.0,
            "lookahead": 4.0,
            "mode": "Herm Thin",
            "output-gain": 0.0,
            "oversampling": "Half x4(2L)",
            "release": 8.0,
            "sidechain-preamp": 0.0,
            "stereo-link": 100.0,
            "threshold": 0.0
        },
        "multiband_compressor#0": {
            "band0": {
                "attack-threshold": -16.0,
                "attack-time": 150.0,
                "boost-amount": 6.0,
                "boost-threshold": -72.0,
                "compression-mode": "Downward",
                "compressor-enable": true,
                "external-sidechain": false,
                "knee": -12.0,
                "makeup": 0.0,
                "mute": false,
                "ratio": 5.0,
                "release-threshold": -100.0,
                "release-time": 300.0,
                "sidechain-custom-highcut-filter": false,
                "sidechain-custom-lowcut-filter": false,
                "sidechain-highcut-frequency": 500.0,
                "sidechain-lookahead": 0.0,
                "sidechain-lowcut-frequency": 10.0,
                "sidechain-mode": "RMS",
                "sidechain-preamp": 0.0,
                "sidechain-reactivity": 10.0,
                "sidechain-source": "Middle",
                "solo": false,
                "stereo-split-source": "Left/Right"
            },
            "band1": {
                "attack-threshold": -24.0,
                "attack-time": 150.0,
                "boost-amount": 6.0,
                "boost-threshold": -72.0,
                "compression-mode": "Downward",
                "compressor-enable": true,
                "enable-band": true,
                "external-sidechain": false,
                "knee": -9.0,
                "makeup": 5.0,
                "mute": false,
                "ratio": 3.0,
                "release-threshold": -100.0,
                "release-time": 200.0,
                "sidechain-custom-highcut-filter": false,
                "sidechain-custom-lowcut-filter": false,
                "sidechain-highcut-frequency": 1000.0,
                "sidechain-lookahead": 0.0,
                "sidechain-lowcut-frequency": 500.0,
                "sidechain-mode": "RMS",
                "sidechain-preamp": 0.0,
                "sidechain-reactivity": 10.0,
                "sidechain-source": "Middle",
                "solo": false,
                "split-frequency": 250.0,
                "stereo-split-source": "Left/Right"
            },
            "band2": {
                "attack-threshold": -24.0,
                "attack-time": 100.0,
                "boost-amount": 6.0,
                "boost-threshold": -72.0,
                "compression-mode": "Downward",
                "compressor-enable": true,
                "enable-band": true,
                "external-sidechain": false,
                "knee": -9.0,
                "makeup": 5.0,
                "mute": false,
                "ratio": 3.0,
                "release-threshold": -100.0,
                "release-time": 150.0,
                "sidechain-custom-highcut-filter": false,
                "sidechain-custom-lowcut-filter": false,
                "sidechain-highcut-frequency": 2000.0,
                "sidechain-lookahead": 0.0,
                "sidechain-lowcut-frequency": 1000.0,
                "sidechain-mode": "RMS",
                "sidechain-preamp": 0.0,
                "sidechain-reactivity": 10.0,
                "sidechain-source": "Middle",
                "solo": false,
                "split-frequency": 1250.0,
                "stereo-split-source": "Left/Right"
            },
            "band3": {
                "attack-threshold": -24.0,
                "attack-time": 80.0,
                "boost-amount": 6.0,
                "boost-threshold": -72.0,
                "compression-mode": "Downward",
                "compressor-enable": true,
                "enable-band": true,
                "external-sidechain": false,
                "knee": -9.0,
                "makeup": 5.0,
                "mute": false,
                "ratio": 4.0,
                "release-threshold": -100.0,
                "release-time": 120.0,
                "sidechain-custom-highcut-filter": false,
                "sidechain-custom-lowcut-filter": false,
                "sidechain-highcut-frequency": 4000.0,
                "sidechain-lookahead": 0.0,
                "sidechain-lowcut-frequency": 2000.0,
                "sidechain-mode": "RMS",
                "sidechain-preamp": 0.0,
                "sidechain-reactivity": 10.0,
                "sidechain-source": "Middle",
                "solo": false,
                "split-frequency": 5000.0,
                "stereo-split-source": "Left/Right"
            },
            "band4": {
                "attack-threshold": -12.0,
                "attack-time": 20.0,
                "boost-amount": 6.0,
                "boost-threshold": -72.0,
                "compression-mode": "Downward",
                "compressor-enable": true,
                "enable-band": false,
                "external-sidechain": false,
                "knee": -6.0,
                "makeup": 0.0,
                "mute": false,
                "ratio": 1.0,
                "release-threshold": -100.0,
                "release-time": 100.0,
                "sidechain-custom-highcut-filter": false,
                "sidechain-custom-lowcut-filter": false,
                "sidechain-highcut-frequency": 8000.0,
                "sidechain-lookahead": 0.0,
                "sidechain-lowcut-frequency": 4000.0,
                "sidechain-mode": "RMS",
                "sidechain-preamp": 0.0,
                "sidechain-reactivity": 10.0,
                "sidechain-source": "Middle",
                "solo": false,
                "split-frequency": 4000.0,
                "stereo-split-source": "Left/Right"
            },
            "band5": {
                "attack-threshold": -12.0,
                "attack-time": 20.0,
                "boost-amount": 6.0,
                "boost-threshold": -72.0,
                "compression-mode": "Downward",
                "compressor-enable": true,
                "enable-band": false,
                "external-sidechain": false,
                "knee": -6.0,
                "makeup": 0.0,
                "mute": false,
                "ratio": 1.0,
                "release-threshold": -100.0,
                "release-time": 100.0,
                "sidechain-custom-highcut-filter": false,
                "sidechain-custom-lowcut-filter": false,
                "sidechain-highcut-frequency": 12000.0,
                "sidechain-lookahead": 0.0,
                "sidechain-lowcut-frequency": 8000.0,
                "sidechain-mode": "RMS",
                "sidechain-preamp": 0.0,
                "sidechain-reactivity": 10.0,
                "sidechain-source": "Middle",
                "solo": false,
                "split-frequency": 8000.0,
                "stereo-split-source": "Left/Right"
            },
            "band6": {
                "attack-threshold": -12.0,
                "attack-time": 20.0,
                "boost-amount": 6.0,
                "boost-threshold": -72.0,
                "compression-mode": "Downward",
                "compressor-enable": true,
                "enable-band": false,
                "external-sidechain": false,
                "knee": -6.0,
                "makeup": 0.0,
                "mute": false,
                "ratio": 1.0,
                "release-threshold": -100.0,
                "release-time": 100.0,
                "sidechain-custom-highcut-filter": false,
                "sidechain-custom-lowcut-filter": false,
                "sidechain-highcut-frequency": 16000.0,
                "sidechain-lookahead": 0.0,
                "sidechain-lowcut-frequency": 12000.0,
                "sidechain-mode": "RMS",
                "sidechain-preamp": 0.0,
                "sidechain-reactivity": 10.0,
                "sidechain-source": "Middle",
                "solo": false,
                "split-frequency": 12000.0,
                "stereo-split-source": "Left/Right"
            },
            "band7": {
                "attack-threshold": -12.0,
                "attack-time": 20.0,
                "boost-amount": 6.0,
                "boost-threshold": -72.0,
                "compression-mode": "Downward",
                "compressor-enable": true,
                "enable-band": false,
                "external-sidechain": false,
                "knee": -6.0,
                "makeup": 0.0,
                "mute": false,
                "ratio": 1.0,
                "release-threshold": -100.0,
                "release-time": 100.0,
                "sidechain-custom-highcut-filter": false,
                "sidechain-custom-lowcut-filter": false,
                "sidechain-highcut-frequency": 20000.0,
                "sidechain-lookahead": 0.0,
                "sidechain-lowcut-frequency": 16000.0,
                "sidechain-mode": "RMS",
                "sidechain-preamp": 0.0,
                "sidechain-reactivity": 10.0,
                "sidechain-source": "Middle",
                "solo": false,
                "split-frequency": 16000.0,
                "stereo-split-source": "Left/Right"
            },
            "bypass": false,
            "compressor-mode": "Modern",
            "dry": -100.0,
            "envelope-boost": "None",
            "input-gain": 0.0,
            "output-gain": 0.0,
            "stereo-split": false,
            "wet": 0.0
        },
        "plugins_order": [
            "filter#0",
            "bass_enhancer#0",
            "convolver#0",
            "multiband_compressor#0",
            "stereo_tools#0",
            "limiter#0"
        ],
        "stereo_tools#0": {
            "balance-in": 0.0,
            "balance-out": 0.0,
            "bypass": false,
            "delay": 0.0,
            "input-gain": 0.0,
            "middle-level": 0.0,
            "middle-panorama": 0.0,
            "mode": "LR > LR (Stereo Default)",
            "mutel": false,
            "muter": false,
            "output-gain": 0.0,
            "phasel": false,
            "phaser": false,
            "sc-level": 1.0,
            "side-balance": 0.0,
            "side-level": 0.0,
            "softclip": false,
            "stereo-base": 0.30000000000000004,
            "stereo-phase": 0.0
        }
    }
}
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