For those of you who purchased the Librem 14, you’ll realize there is no EQ profile and the speakers sound extremely low quality.
I used Pulse Effects to create a basic EQ Profile that hits a broad range of music from Jazz, Electronic, spoken word etc. It’s not perfect, but it is DEFINITELY better than out of the box EQ, which is non-existent.
I have professional experience producing audio, as well as creating products for the world market. With the preset provided below, it will at least be up to par for what you’d expect a high quality product to have.
Engineers - for future reference, please do not neglect audio quality.
Here is the sound profile I created. Normally stored as a .json, and since I can’t attach files here it is:
Purism14.json
You can copy/paste this into a .json file, put it in the PulseEffects config file on your computer and load it into pulse effects, or better yet, Engineers - please use this as a starting point for tuning your audio output. It’s not that the speakers are crap - it’s that you should not expect them to sound good without tuning them.
(UPDATE: See v2.0 in comments below, better reduction of distortion along with volume maximizing)
{
"spectrum": {
"show": "true",
"n-points": "100",
"height": "120",
"use-custom-color": "false",
"fill": "true",
"show-bar-border": "true",
"sampling-freq": "10",
"line-width": "2",
"type": "Bars",
"color": [
"1",
"1",
"1",
"1"
],
"color-axis-labels": [
"1",
"1",
"1",
"1"
],
"gradient-color": [
"0",
"0",
"0",
"1"
]
},
"output": {
"blocklist": "",
"plugins_order": [
"equalizer",
"limiter",
"autogain",
"gate",
"multiband_gate",
"compressor",
"multiband_compressor",
"convolver",
"bass_enhancer",
"exciter",
"crystalizer",
"stereo_tools",
"reverb",
"delay",
"deesser",
"crossfeed",
"loudness",
"maximizer",
"filter",
"pitch",
"rnnoise"
],
"bass_enhancer": {
"state": "false",
"input-gain": "0",
"output-gain": "0",
"amount": "0",
"harmonics": "8.5",
"scope": "100",
"floor": "20",
"blend": "0",
"floor-active": "false",
"listen": "false"
},
"compressor": {
"state": "false",
"input-gain": "0",
"output-gain": "0",
"mode": "Downward",
"attack": "20",
"release": "100",
"release-threshold": "-200",
"threshold": "-12",
"ratio": "4",
"knee": "-6",
"makeup": "0",
"boost-threshold": "-72",
"sidechain": {
"listen": "false",
"type": "Feed-forward",
"mode": "RMS",
"source": "Middle",
"preamp": "0",
"reactivity": "10",
"lookahead": "0"
},
"hpf-mode": "off",
"hpf-frequency": "10",
"lpf-mode": "off",
"lpf-frequency": "20000"
},
"crossfeed": {
"state": "false",
"fcut": "700",
"feed": "4.5"
},
"deesser": {
"state": "false",
"detection": "RMS",
"mode": "Wide",
"threshold": "-18",
"ratio": "3",
"laxity": "15",
"makeup": "0",
"f1-freq": "6000",
"f2-freq": "4500",
"f1-level": "0",
"f2-level": "12",
"f2-q": "1",
"sc-listen": "false"
},
"equalizer": {
"state": "true",
"mode": "IIR",
"num-bands": "30",
"input-gain": "0",
"output-gain": "13.699999999999999",
"split-channels": "false",
"left": {
"band0": {
"type": "Bell",
"mode": "RLC (BT)",
"slope": "x1",
"solo": "false",
"mute": "false",
"gain": "-31.111111111111111",
"frequency": "22.59",
"q": "4.3600000000000003"
},
"band1": {
"type": "Bell",
"mode": "RLC (BT)",
"slope": "x1",
"solo": "false",
"mute": "false",
"gain": "-26.868686868686872",
"frequency": "28.440000000000001",
"q": "4.3600000000000003"
},
"band2": {
"type": "Bell",
"mode": "RLC (BT)",
"slope": "x1",
"solo": "false",
"mute": "false",
"gain": "-21.91919191919192",
"frequency": "35.799999999999997",
"q": "4.3600000000000003"
},
"band3": {
"type": "Bell",
"mode": "RLC (BT)",
"slope": "x1",
"solo": "false",
"mute": "false",
"gain": "-16.262626262626267",
"frequency": "45.07",
"q": "4.3600000000000003"
},
"band4": {
"type": "Bell",
"mode": "RLC (BT)",
"slope": "x1",
"solo": "false",
"mute": "false",
"gain": "-3.5353535353535364",
"frequency": "56.740000000000002",
"q": "4.3600000000000003"
},
"band5": {
"type": "Bell",
"mode": "RLC (BT)",
"slope": "x1",
"solo": "false",
"mute": "false",
"gain": "4.6484375",
"frequency": "71.430000000000007",
"q": "4.3600000000000003"
},
"band6": {
"type": "Bell",
"mode": "RLC (BT)",
"slope": "x1",
"solo": "false",
"mute": "false",
"gain": "3.8888888888888928",
"frequency": "89.930000000000007",
"q": "4.3600000000000003"
},
"band7": {
"type": "Bell",
"mode": "RLC (BT)",
"slope": "x1",
"solo": "false",
"mute": "false",
"gain": "1.0606060606060623",
"frequency": "113.20999999999999",
"q": "4.3600000000000003"
},
"band8": {
"type": "Bell",
"mode": "RLC (BT)",
"slope": "x1",
"solo": "false",
"mute": "false",
"gain": "1.4141414141414188",
"frequency": "142.53",
"q": "4.3600000000000003"
},
"band9": {
"type": "Bell",
"mode": "RLC (BT)",
"slope": "x1",
"solo": "false",
"mute": "false",
"gain": "1.4141414141414188",
"frequency": "179.43000000000001",
"q": "4.3600000000000003"
},
"band10": {
"type": "Bell",
"mode": "RLC (BT)",
"slope": "x1",
"solo": "false",
"mute": "false",
"gain": "-2.8282828282828305",
"frequency": "225.88999999999999",
"q": "4.3600000000000003"
},
"band11": {
"type": "Bell",
"mode": "RLC (BT)",
"slope": "x1",
"solo": "false",
"mute": "false",
"gain": "1.5494791666666714",
"frequency": "284.38",
"q": "4.3600000000000003"
},
"band12": {
"type": "Bell",
"mode": "RLC (BT)",
"slope": "x1",
"solo": "false",
"mute": "false",
"gain": "0.35353535353534937",
"frequency": "358.01999999999998",
"q": "4.3600000000000003"
},
"band13": {
"type": "Bell",
"mode": "RLC (BT)",
"slope": "x1",
"solo": "false",
"mute": "false",
"gain": "-3.5353535353535364",
"frequency": "450.72000000000003",
"q": "4.3600000000000003"
},
"band14": {
"type": "Bell",
"mode": "RLC (BT)",
"slope": "x1",
"solo": "false",
"mute": "false",
"gain": "-12.727272727272723",
"frequency": "567.41999999999996",
"q": "4.3600000000000003"
},
"band15": {
"type": "Bell",
"mode": "RLC (BT)",
"slope": "x1",
"solo": "false",
"mute": "false",
"gain": "-7.7777777777777821",
"frequency": "714.34000000000003",
"q": "4.3600000000000003"
},
"band16": {
"type": "Bell",
"mode": "RLC (BT)",
"slope": "x1",
"solo": "false",
"mute": "false",
"gain": "-14.494949494949495",
"frequency": "899.28999999999996",
"q": "4.3600000000000003"
},
"band17": {
"type": "Bell",
"mode": "RLC (BT)",
"slope": "x1",
"solo": "false",
"mute": "false",
"gain": "-15.202020202020201",
"frequency": "1132.1500000000001",
"q": "4.3600000000000003"
},
"band18": {
"type": "Bell",
"mode": "RLC (BT)",
"slope": "x1",
"solo": "false",
"mute": "false",
"gain": "-12.020202020202021",
"frequency": "1425.29",
"q": "4.3600000000000003"
},
"band19": {
"type": "Bell",
"mode": "RLC (BT)",
"slope": "x1",
"solo": "false",
"mute": "false",
"gain": "-10.959595959595958",
"frequency": "1794.3299999999999",
"q": "4.3600000000000003"
},
"band20": {
"type": "Bell",
"mode": "RLC (BT)",
"slope": "x1",
"solo": "false",
"mute": "false",
"gain": "-4.9494949494949516",
"frequency": "2258.9299999999998",
"q": "4.3600000000000003"
},
"band21": {
"type": "Bell",
"mode": "RLC (BT)",
"slope": "x1",
"solo": "false",
"mute": "false",
"gain": "-7.4242424242424256",
"frequency": "2843.8200000000002",
"q": "4.3600000000000003"
},
"band22": {
"type": "Bell",
"mode": "RLC (BT)",
"slope": "x1",
"solo": "false",
"mute": "false",
"gain": "-12.020202020202021",
"frequency": "3580.1599999999999",
"q": "4.3600000000000003"
},
"band23": {
"type": "Bell",
"mode": "RLC (BT)",
"slope": "x1",
"solo": "false",
"mute": "false",
"gain": "-10.252525252525256",
"frequency": "4507.1499999999996",
"q": "4.3600000000000003"
},
"band24": {
"type": "Bell",
"mode": "RLC (BT)",
"slope": "x1",
"solo": "false",
"mute": "false",
"gain": "-3.1818181818181799",
"frequency": "5674.1599999999999",
"q": "4.3600000000000003"
},
"band25": {
"type": "Bell",
"mode": "RLC (BT)",
"slope": "x1",
"solo": "false",
"mute": "false",
"gain": "0.70707070707071296",
"frequency": "7143.3500000000004",
"q": "4.3600000000000003"
},
"band26": {
"type": "Bell",
"mode": "RLC (BT)",
"slope": "x1",
"solo": "false",
"mute": "false",
"gain": "1.7676767676767682",
"frequency": "8992.9400000000005",
"q": "4.3600000000000003"
},
"band27": {
"type": "Bell",
"mode": "RLC (BT)",
"slope": "x1",
"solo": "false",
"mute": "false",
"gain": "-2.474747474747474",
"frequency": "11321.450000000001",
"q": "4.3600000000000003"
},
"band28": {
"type": "Bell",
"mode": "RLC (BT)",
"slope": "x1",
"solo": "false",
"mute": "false",
"gain": "-10.606060606060606",
"frequency": "14252.860000000001",
"q": "4.3600000000000003"
},
"band29": {
"type": "Bell",
"mode": "RLC (BT)",
"slope": "x1",
"solo": "false",
"mute": "false",
"gain": "-8.1313131313131279",
"frequency": "17943.279999999999",
"q": "4.3600000000000003"
}
},
"right": {
"band0": {
"type": "Bell",
"mode": "RLC (BT)",
"slope": "x1",
"solo": "false",
"mute": "false",
"gain": "-31.111111111111111",
"frequency": "22.59",
"q": "4.3600000000000003"
},
"band1": {
"type": "Bell",
"mode": "RLC (BT)",
"slope": "x1",
"solo": "false",
"mute": "false",
"gain": "-26.868686868686872",
"frequency": "28.440000000000001",
"q": "4.3600000000000003"
},
"band2": {
"type": "Bell",
"mode": "RLC (BT)",
"slope": "x1",
"solo": "false",
"mute": "false",
"gain": "-21.91919191919192",
"frequency": "35.799999999999997",
"q": "4.3600000000000003"
},
"band3": {
"type": "Bell",
"mode": "RLC (BT)",
"slope": "x1",
"solo": "false",
"mute": "false",
"gain": "-16.262626262626267",
"frequency": "45.07",
"q": "4.3600000000000003"
},
"band4": {
"type": "Bell",
"mode": "RLC (BT)",
"slope": "x1",
"solo": "false",
"mute": "false",
"gain": "-3.5353535353535364",
"frequency": "56.740000000000002",
"q": "4.3600000000000003"
},
"band5": {
"type": "Bell",
"mode": "RLC (BT)",
"slope": "x1",
"solo": "false",
"mute": "false",
"gain": "4.6484375",
"frequency": "71.430000000000007",
"q": "4.3600000000000003"
},
"band6": {
"type": "Bell",
"mode": "RLC (BT)",
"slope": "x1",
"solo": "false",
"mute": "false",
"gain": "3.8888888888888928",
"frequency": "89.930000000000007",
"q": "4.3600000000000003"
},
"band7": {
"type": "Bell",
"mode": "RLC (BT)",
"slope": "x1",
"solo": "false",
"mute": "false",
"gain": "1.0606060606060623",
"frequency": "113.20999999999999",
"q": "4.3600000000000003"
},
"band8": {
"type": "Bell",
"mode": "RLC (BT)",
"slope": "x1",
"solo": "false",
"mute": "false",
"gain": "1.4141414141414188",
"frequency": "142.53",
"q": "4.3600000000000003"
},
"band9": {
"type": "Bell",
"mode": "RLC (BT)",
"slope": "x1",
"solo": "false",
"mute": "false",
"gain": "1.4141414141414188",
"frequency": "179.43000000000001",
"q": "4.3600000000000003"
},
"band10": {
"type": "Bell",
"mode": "RLC (BT)",
"slope": "x1",
"solo": "false",
"mute": "false",
"gain": "-2.8282828282828305",
"frequency": "225.88999999999999",
"q": "4.3600000000000003"
},
"band11": {
"type": "Bell",
"mode": "RLC (BT)",
"slope": "x1",
"solo": "false",
"mute": "false",
"gain": "1.5494791666666714",
"frequency": "284.38",
"q": "4.3600000000000003"
},
"band12": {
"type": "Bell",
"mode": "RLC (BT)",
"slope": "x1",
"solo": "false",
"mute": "false",
"gain": "0.35353535353534937",
"frequency": "358.01999999999998",
"q": "4.3600000000000003"
},
"band13": {
"type": "Bell",
"mode": "RLC (BT)",
"slope": "x1",
"solo": "false",
"mute": "false",
"gain": "-3.5353535353535364",
"frequency": "450.72000000000003",
"q": "4.3600000000000003"
},
"band14": {
"type": "Bell",
"mode": "RLC (BT)",
"slope": "x1",
"solo": "false",
"mute": "false",
"gain": "-12.727272727272723",
"frequency": "567.41999999999996",
"q": "4.3600000000000003"
},
"band15": {
"type": "Bell",
"mode": "RLC (BT)",
"slope": "x1",
"solo": "false",
"mute": "false",
"gain": "-7.7777777777777821",
"frequency": "714.34000000000003",
"q": "4.3600000000000003"
},
"band16": {
"type": "Bell",
"mode": "RLC (BT)",
"slope": "x1",
"solo": "false",
"mute": "false",
"gain": "-14.494949494949495",
"frequency": "899.28999999999996",
"q": "4.3600000000000003"
},
"band17": {
"type": "Bell",
"mode": "RLC (BT)",
"slope": "x1",
"solo": "false",
"mute": "false",
"gain": "-15.202020202020201",
"frequency": "1132.1500000000001",
"q": "4.3600000000000003"
},
"band18": {
"type": "Bell",
"mode": "RLC (BT)",
"slope": "x1",
"solo": "false",
"mute": "false",
"gain": "-12.020202020202021",
"frequency": "1425.29",
"q": "4.3600000000000003"
},
"band19": {
"type": "Bell",
"mode": "RLC (BT)",
"slope": "x1",
"solo": "false",
"mute": "false",
"gain": "-10.959595959595958",
"frequency": "1794.3299999999999",
"q": "4.3600000000000003"
},
"band20": {
"type": "Bell",
"mode": "RLC (BT)",
"slope": "x1",
"solo": "false",
"mute": "false",
"gain": "-4.9494949494949516",
"frequency": "2258.9299999999998",
"q": "4.3600000000000003"
},
"band21": {
"type": "Bell",
"mode": "RLC (BT)",
"slope": "x1",
"solo": "false",
"mute": "false",
"gain": "-7.4242424242424256",
"frequency": "2843.8200000000002",
"q": "4.3600000000000003"
},
"band22": {
"type": "Bell",
"mode": "RLC (BT)",
"slope": "x1",
"solo": "false",
"mute": "false",
"gain": "-12.020202020202021",
"frequency": "3580.1599999999999",
"q": "4.3600000000000003"
},
"band23": {
"type": "Bell",
"mode": "RLC (BT)",
"slope": "x1",
"solo": "false",
"mute": "false",
"gain": "-10.252525252525256",
"frequency": "4507.1499999999996",
"q": "4.3600000000000003"
},
"band24": {
"type": "Bell",
"mode": "RLC (BT)",
"slope": "x1",
"solo": "false",
"mute": "false",
"gain": "-3.1818181818181799",
"frequency": "5674.1599999999999",
"q": "4.3600000000000003"
},
"band25": {
"type": "Bell",
"mode": "RLC (BT)",
"slope": "x1",
"solo": "false",
"mute": "false",
"gain": "0.70707070707071296",
"frequency": "7143.3500000000004",
"q": "4.3600000000000003"
},
"band26": {
"type": "Bell",
"mode": "RLC (BT)",
"slope": "x1",
"solo": "false",
"mute": "false",
"gain": "1.7676767676767682",
"frequency": "8992.9400000000005",
"q": "4.3600000000000003"
},
"band27": {
"type": "Bell",
"mode": "RLC (BT)",
"slope": "x1",
"solo": "false",
"mute": "false",
"gain": "-2.474747474747474",
"frequency": "11321.450000000001",
"q": "4.3600000000000003"
},
"band28": {
"type": "Bell",
"mode": "RLC (BT)",
"slope": "x1",
"solo": "false",
"mute": "false",
"gain": "-10.606060606060606",
"frequency": "14252.860000000001",
"q": "4.3600000000000003"
},
"band29": {
"type": "Bell",
"mode": "RLC (BT)",
"slope": "x1",
"solo": "false",
"mute": "false",
"gain": "-8.1313131313131279",
"frequency": "17943.279999999999",
"q": "4.3600000000000003"
}
}
},
"exciter": {
"state": "false",
"input-gain": "0",
"output-gain": "0",
"amount": "0",
"harmonics": "8.5",
"scope": "7500",
"ceil": "16000",
"blend": "0",
"ceil-active": "false",
"listen": "false"
},
"filter": {
"state": "false",
"input-gain": "0",
"output-gain": "0",
"frequency": "2000",
"resonance": "-3",
"mode": "12dB\/oct Lowpass",
"inertia": "20"
},
"gate": {
"state": "false",
"detection": "RMS",
"stereo-link": "Average",
"range": "-24",
"attack": "20",
"release": "250",
"threshold": "-18",
"ratio": "2",
"knee": "9",
"input": "0",
"makeup": "0"
},
"limiter": {
"state": "false",
"input-gain": "0",
"limit": "0",
"lookahead": "5",
"release": "50",
"auto-level": "false",
"asc": "false",
"asc-level": "0.5",
"oversampling": "1",
"output-gain": "0"
},
"maximizer": {
"state": "false",
"release": "25",
"ceiling": "0",
"threshold": "0"
},
"pitch": {
"state": "false",
"input-gain": "0",
"output-gain": "0",
"cents": "0",
"semitones": "0",
"octaves": "0",
"crispness": "3",
"formant-preserving": "false",
"faster": "false"
},
"reverb": {
"state": "false",
"input-gain": "0",
"output-gain": "0",
"room-size": "Large",
"decay-time": "1.5",
"hf-damp": "5000",
"diffusion": "0.5",
"amount": "-12",
"dry": "0",
"predelay": "0",
"bass-cut": "300",
"treble-cut": "5000"
},
"multiband_compressor": {
"state": "false",
"input-gain": "0",
"output-gain": "0",
"freq0": "120",
"freq1": "1000",
"freq2": "6000",
"mode": "LR8",
"subband": {
"threshold": "-12",
"ratio": "2",
"attack": "150",
"release": "300",
"makeup": "0",
"knee": "9",
"detection": "RMS",
"bypass": "false",
"solo": "false"
},
"lowband": {
"threshold": "-12",
"ratio": "2",
"attack": "150",
"release": "300",
"makeup": "0",
"knee": "9",
"detection": "RMS",
"bypass": "false",
"solo": "false"
},
"midband": {
"threshold": "-12",
"ratio": "2",
"attack": "150",
"release": "300",
"makeup": "0",
"knee": "9",
"detection": "RMS",
"bypass": "false",
"solo": "false"
},
"highband": {
"threshold": "-12",
"ratio": "2",
"attack": "150",
"release": "300",
"makeup": "0",
"knee": "9",
"detection": "RMS",
"bypass": "false",
"solo": "false"
}
},
"loudness": {
"state": "false",
"fft": "4096",
"std": "ISO226-2003",
"input": "0",
"volume": "0"
},
"multiband_gate": {
"state": "false",
"input-gain": "0",
"output-gain": "0",
"freq0": "120",
"freq1": "1000",
"freq2": "6000",
"mode": "LR8",
"subband": {
"reduction": "-24",
"threshold": "-12",
"ratio": "2",
"attack": "150",
"release": "300",
"makeup": "0",
"knee": "9",
"detection": "RMS",
"bypass": "false",
"solo": "false"
},
"lowband": {
"reduction": "-24",
"threshold": "-12",
"ratio": "2",
"attack": "150",
"release": "300",
"makeup": "0",
"knee": "9",
"detection": "RMS",
"bypass": "false",
"solo": "false"
},
"midband": {
"reduction": "-24",
"threshold": "-12",
"ratio": "2",
"attack": "150",
"release": "300",
"makeup": "0",
"knee": "9",
"detection": "RMS",
"bypass": "false",
"solo": "false"
},
"highband": {
"reduction": "-24",
"threshold": "-12",
"ratio": "2",
"attack": "150",
"release": "300",
"makeup": "0",
"knee": "9",
"detection": "RMS",
"bypass": "false",
"solo": "false"
}
},
"stereo_tools": {
"state": "false",
"input-gain": "0",
"output-gain": "0",
"balance-in": "0",
"balance-out": "0",
"softclip": "false",
"mutel": "false",
"muter": "false",
"phasel": "false",
"phaser": "false",
"mode": "LR > LR (Stereo Default)",
"side-level": "0",
"side-balance": "0",
"middle-level": "0",
"middle-panorama": "0",
"stereo-base": "0",
"delay": "0",
"sc-level": "1",
"stereo-phase": "0"
},
"convolver": {
"state": "false",
"input-gain": "0",
"output-gain": "0",
"kernel-path": "",
"ir-width": "100"
},
"crystalizer": {
"state": "false",
"aggressive": "false",
"input-gain": "0",
"output-gain": "0",
"band0": {
"intensity": "12",
"mute": "false",
"bypass": "false"
},
"band1": {
"intensity": "10",
"mute": "false",
"bypass": "false"
},
"band2": {
"intensity": "8",
"mute": "false",
"bypass": "false"
},
"band3": {
"intensity": "6",
"mute": "false",
"bypass": "false"
},
"band4": {
"intensity": "4",
"mute": "false",
"bypass": "false"
},
"band5": {
"intensity": "2",
"mute": "false",
"bypass": "false"
},
"band6": {
"intensity": "0",
"mute": "false",
"bypass": "false"
},
"band7": {
"intensity": "-2",
"mute": "false",
"bypass": "false"
},
"band8": {
"intensity": "-4",
"mute": "false",
"bypass": "false"
},
"band9": {
"intensity": "-6",
"mute": "false",
"bypass": "false"
},
"band10": {
"intensity": "-8",
"mute": "false",
"bypass": "false"
},
"band11": {
"intensity": "-10",
"mute": "false",
"bypass": "false"
},
"band12": {
"intensity": "-12",
"mute": "false",
"bypass": "false"
}
},
"autogain": {
"state": "false",
"detect-silence": "false",
"use-geometric-mean": "true",
"input-gain": "0",
"output-gain": "0",
"target": "-23",
"weight-m": "1",
"weight-s": "1",
"weight-i": "1"
},
"delay": {
"state": "false",
"input-gain": "0",
"output-gain": "0",
"time-l": "0",
"time-r": "0"
},
"rnnoise": {
"state": "false",
"input-gain": "0",
"output-gain": "0",
"model-path": "Standard RNNoise Model"
}
}
}