Indexes and Ranges

Jump to User Gain Index

Jump to Calibration Gain Index

The table below describes the indexes used to represent standard values used in the Bongiovi DPS algorithm (generation 1). These values normally apply to equalizer functions.

EQ Gain Index HEXDecibelsFreq IndexHEXFreq HzQ IndexHEXQ Value
00-120028000.4
11-11.51131110.5
22-112235220.6
33-10.53340330.7
44-104445440.8
55-9.55550550.9
66-96656661
77-8.57763771.2
88-88870881.4
99-7.59980992
10A-710A9010A2.5
11B-6.511B10011B3
12C-612C11212C4
13D-5.513D12513D5
14E-514E14114E6.5
15F-4.515F16015F8
1610-41610180
1711-3.51711200
1812-31812225
1913-2.51913250
2014-22014280
2115-1.52115315
2216-12216350
2317-0.52317400
241802418450
25190.52519500
261A1261A560
271B1.5271B630
281C2281C700
291D2.5291D800
301E3301E900
311F3.5311F1000
3220432201120
33214.533211250
3422534221400
35235.535231600
3624636241800
37256.537252000
3826738262250
39277.539272500
4028840282800
41298.541293150
422A9422A3500
432B9.5432B4000
442C10442C4500
452D10.5452D5000
462E11462E5600
472F11.5472F6300
48301248307000
493112.549318000
50321350329000
513313.5513310000
523414523411200
533514.5533512500
543615543614100
553715.5553716000
563816563818000
573916.5573920000
583A17
593B17.5
603C18

User Gain Index

In cases where a wide range of attenuation is required, the special User Gain index table applies:

Special Gain IndexHEXDecibels
160A00
1599F-0.5
1589E-1
1579D-1.5
1569C-2
1559B-2.5
1549A-3
15399-3.5
15298-4
15197-4.5
15096-5
14995-5.5
14894-6
14793-6.5
14692-7
14591-7.5
14490-8
1438F-8.5
1428E-9
1418D-9.5
1408C-10
1398B-10.5
1388A-11
13789-11.5
13688-12
13587-12.5
13486-13
13385-13.5
13284-14
13183-14.5
13082-15
12981-15.5
12880-16
1277F-16.5
1267E-17
1257D-17.5
1247C-18
1237B-18.5
1227A-19
12179-19.5
12078-20
11977-20.5
11876-21
11775-21.5
11674-22
11573-22.5
11472-23
11371-23.5
11270-24
1116F-24.5
1106E-25
1096D-25.5
1086C-26
1076B-26.5
1066A-27
10569-27.5
10468-28
10367-28.5
10266-29
10165-29.5
10064-30
9963-30.5
9862-31
9761-31.5
9660-32
955F-32.5
945E-33
935D-33.5
925C-34
915B-34.5
905A-35
8959-35.5
8858-36
8757-36.5
8656-37
8555-37.5
8454-38
8353-38.5
8252-39
8151-39.5
8050-40
794F-40.5
784E-41
774D-41.5
764C-42
754B-42.5
744A-43
7349-43.5
7248-44
7147-44.5
7046-45
6945-45.5
6844-46
6743-46.5
6642-47
6541-47.5
6440-48
633F-48.5
623E-49
613D-49.5
603C-50
593B-50.5
583A-51
5739-51.5
5638-52
5537-52.5
5436-53
5335-53.5
5234-54
5133-54.5
5032-55
4931-55.5
4830-56
472F-56.5
462E-57
452D-57.5
442C-58
432B-58.5
422A-59
4129-59.5
4028-60
3927-60.5
3826-61
3725-61.5
3624-62
3523-62.5
3422-63
3321-63.5
3220-64
311F-64.5
301E-65
291D-65.5
281C-66
271B-66.5
261A-67
2519-67.5
2418-68
2317-68.5
2216-69
2115-69.5
2014-70
1913-70.5
1812-71
1711-71.5
1610-72
15F-72.5
14E-73
13D-73.5
12C-74
11B-74.5
10A-75
99-75.5
88-76
77-76.5
66-77
55-77.5
44-78
33-78.5
22-79
11-79.5
00-80

Calibration Gain Index

Input Gain, Output Gain, and AGC Makeup Gain all have a range of -40dB to +23.5dB:

IndexHEXDecibels
00-40
11-39.5
22-39
33-38.5
44-38
55-37.5
66-37
77-36.5
88-36
99-35.5
10A-35
11B-34.5
12C-34
13D-33.5
14E-33
15F-32.5
1610-32
1711-31.5
1812-31
1913-30.5
2014-30
2115-29.5
2216-29
2317-28.5
2418-28
2519-27.5
261A-27
271B-26.5
281C-26
291D-25.5
301E-25
311F-24.5
3220-24
3321-23.5
3422-23
3523-22.5
3624-22
3725-21.5
3826-21
3927-20.5
4028-20
4129-19.5
422A-19
432B-18.5
442C-18
452D-17.5
462E-17
472F-16.5
4830-16
4931-15.5
5032-15
5133-14.5
5234-14
5335-13.5
5436-13
5537-12.5
5638-12
5739-11.5
583A-11
593B-10.5
603C-10
613D-9.5
623E-9
633F-8.5
6440-8
6541-7.5
6642-7
6743-6.5
6844-6
6945-5.5
7046-5
7147-4.5
7248-4
7349-3.5
744A-3
754B-2.5
764C-2
774D-1.5
784E-1
794F-0.5
80500
81510.5
82521
83531.5
84542
85552.5
86563
87573.5
88584
89594.5
905A5
915B5.5
925C6
935D6.5
945E7
955F7.5
96608
97618.5
98629
99639.5
1006410
1016510.5
1026611
1036711.5
1046812
1056912.5
1066A13
1076B13.5
1086C14
1096D14.5
1106E15
1116F15.5
1127016
1137116.5
1147217
1157317.5
1167418
1177518.5
1187619
1197719.5
1207820
1217920.5
1227A21
1237B21.5
1247C22
1257D22.5
1267E23
1277F23.5

Compressor Ratio Index

Compressor Ratio IndexHEXRatio
001:1
112:1
223:1
334:1
446:1
55infty:1

Other Tables

High Pass Filter (HPF)

Index 20 – 255 = 20Hz to 255Hz


Compressor Threshold

Index 0 = -52dB

0.5dB increments

Index 104 = 0dB


Limiter Threshold

Index 0 = -80dB

0.5dB increments

Index 160 = 0dB


Limiter Release

Index 0 = 2ms

2ms increments

Index 249 = 500ms


Compressor Attack Time

Index 0 to 99 = 0ms to 99ms


Compressor Release Time

Index 0 = 0ms

5ms increments

Index 99 = 495ms