LFO rate. Any conversion method?

[Sequence2]

Most synths give you the ability to switch between a fixed LFO rate and a free running rate (I.e Rate of 0.11Hz OR Rate of 1/4, 3/4, 3/8 etc etc)
Is there any sort of mathematical conversion method one could use to have an LFO run at a fixed rate?
For example: What value in Hz would you set on a free running LFO to create the same movement as a fixed LFO running at a fixed rate of 4/1? 3/4? 3/8?

Or does it just come down to the producer sitting there and turning the free running LFO knob until he/ she finds a suitable rate?

 

[xXx_Dugan_Fire_xXx]

try this 11 music samples calculators for bpm, tempo, sampling

---------- Post added at 03:45 PM ---------- Previous post was at 03:44 PM ----------

60/BPM x LFO = Y

Where LFO is the LFO rate in beats and Y is the LFO rate in seconds

For quarter notes divide the bpm by 60 (e.g. 120 bpm would be 2 Hz). You can do this for any other value as well (for eighth notes divide by 30, whole notes by 120, etc.).

 

[bandcoach]

try this 11 music samples calculators for bpm, tempo, sampling

60/BPM x LFO = Y


Where LFO is the LFO rate in beats and Y is the LFO rate in seconds

For quarter notes divide the bpm by 60 (e.g. 120 bpm would be 2 Hz). You can do this for any other value as well (for eighth notes divide by 30, whole notes by 120, etc.).

So I looked at that and thought I was hallucinating due to my influenza, but a second and a third look as well as doing some quick numbers up in a spreadsheet, confirmed what I thought

this

60/BPM x LFO = Y

is all ass about, i.e., it should read BPM/60 = Y in seconds and 1/Y = LFO rate in Hz

Below is a table of common tempos and the various LFO rates for fixed beats, triplets and dotted notes, including the math behind them

Formulae	=(1/2)x(BPM/60)	=BPM/60	=2x(BPM/60)	=4x(BPM/60)	=8x(BPM/60)
Reduces to	=BPM/120)	=BPM/60	=BPM/30	=BPM/15	=BPM/7.5
Tempo	1/2	1/4	1/8	1/16	1/32
60	0.50	1.00	2.00	4.00	8.00
72	0.60	1.20	2.40	4.80	9.60
80	0.67	1.33	2.67	5.33	10.67
82	0.68	1.37	2.73	5.47	10.93
84	0.70	1.40	2.80	5.60	11.20
86	0.72	1.43	2.87	5.73	11.47
88	0.73	1.47	2.93	5.87	11.73
92	0.77	1.53	3.07	6.13	12.27
96	0.80	1.60	3.20	6.40	12.80
100	0.83	1.67	3.33	6.67	13.33
104	0.87	1.73	3.47	6.93	13.87
108	0.90	1.80	3.60	7.20	14.40
112	0.93	1.87	3.73	7.47	14.93
120	1.00	2.00	4.00	8.00	16.00

Formulae	=(2/3)x(1/2)x(BPM/60)	=(2/3)x(1/1)x(BPM/60)	=(2/3)x(2/1)x(BPM/60)	=(2/3)x(4/1)x(BPM/60)	=(2/3)x(8/1)x(BPM/60)
Reduces to	=BPM/180	=BPM/90	=BPM/45	=BPM/22.5	=BPM/11.25
Tempo	1/2T	1/4T	1/8T	1/16T	1/32T
60	0.33	0.67	1.33	2.67	5.33
72	0.40	0.80	1.60	3.20	6.40
80	0.44	0.89	1.78	3.56	7.11
82	0.46	0.91	1.82	3.64	7.29
84	0.47	0.93	1.87	3.73	7.47
86	0.48	0.96	1.91	3.82	7.64
88	0.49	0.98	1.96	3.91	7.82
92	0.51	1.02	2.04	4.09	8.18
96	0.53	1.07	2.13	4.27	8.53
100	0.56	1.11	2.22	4.44	8.89
104	0.58	1.16	2.31	4.62	9.24
108	0.60	1.20	2.40	4.80	9.60
112	0.62	1.24	2.49	4.98	9.96
120	0.67	1.33	2.67	5.33	10.67

Formulae	=(3/2)x(1/2)x(BPM/60)	=(3/2)x(1/1)x(BPM/60)	=(3/2)x(2/1)x(BPM/60)	=(3/2)x(4/1)x(BPM/60)	=(3/2)x(8/1)x(BPM/60)
Reduces to	=BPM/80	=BPM/40	=BPM/20	=BPM/10	=BPM/5
Tempo	1/2D	1/4D	1/8D	1/16D	1/32D
60	0.75	1.50	3.00	6.00	12.00
72	0.90	1.80	3.60	7.20	14.40
80	1.00	2.00	4.00	8.00	16.00
82	1.03	2.05	4.10	8.20	16.40
84	1.05	2.10	4.20	8.40	16.80
86	1.08	2.15	4.30	8.60	17.20
88	1.10	2.20	4.40	8.80	17.60
92	1.15	2.30	4.60	9.20	18.40
96	1.20	2.40	4.80	9.60	19.20
100	1.25	2.50	5.00	10.00	20.00
104	1.30	2.60	5.20	10.40	20.80
108	1.35	2.70	5.40	10.80	21.60
112	1.40	2.80	5.60	11.20	22.40
120	1.50	3.00	6.00	12.00	24.00