Dave Smith Instruments prophet 08 User Guide

Frequency: 0…150, sync – 

Sets the LFO frequency. Range 0–150 for un-

synced LFO; speed ranges from slow (30 seconds) to very fast – at 90 (8 HZ, C-
2) and above the speed steps in semitones, up to 150 (261 Hz, middle C).  

Note: Some of the analog functions may not respond well to the fastest 
LFO speeds, due to speed limitations of the control voltages; but they 
will certainly generate some interesting sounds. 

Above 150, the sync speeds are as follows: 

32 Steps 

Sequence speed divided by 32; that is, one LFO 
cycle takes 32 steps 

16 Steps

Sequence speed divided by 16 

8 Steps

Sequence speed divided by 8 

6 Steps

Sequence speed divided by 6 

4 Steps 

Sequence speed divided by 4 

3 Steps 

Sequence speed divided by 3 

2 Steps

Sequence speed divided by 2 

1.5 Step 

Sequence speed divided by 1.5 

1 Step

One cycle per step 

2/3 Step 

Two cycles every three steps 

1/2 Step

Two cycles per step 

1/3 Step 

Three cycles per step 

1/4 Step

Four cycles per step 

1/6 Step 

Six cycles per step 

1/8 Step

Eight cycles per step 

1/16Step

Sixteen cycles per step 

Shape: see table –

Selects the LFO waveshape: 

Triangle

Triangle 

Rev Saw

Reverse Sawtooth 

Sawtooth

Sawtooth 

Square

Square Wave 

Random

Random – changes once per cycle for 
sample-and-hold effects 

Amount: 0…100 – 

Sets the amount of LFO routed to the destination.  

Key Sync – 

When this switch is enabled (lit) the LFO is re-started each time a 

new note is played. Key Sync is set independently on each LFO . 

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