Zoom 1204 User Manual

■ Category: SFX (Special Effects) 

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Explanation of terms 
¥ Vocoder Type:

Changes the Vocoder character. 

¥ Rotary Type:

Adjusts the character of the rotary speaker sound. 

¥ Distortion Type: Changes the distortion character. 

¥ Vocoder Distortion: Adjusts the Vocoder distortion. 
¥ Horn Speed:

Adjusts the high-frequency rotation speed. 

¥ ZNR Threshold:

Adjusts the Zoom Noise Reduction threshold.

¥ Sens:

Adjusts the Vocoder sensitivity.

¥ Rotor Speed: Adjusts the low-frequency rotation speed. 
¥ Depth L/R:

Adjusts the Zoom Noise Reduction depth. 

10-band Vocoder 
This effect divides the signal from a synthesizer or similar input to the left channel 
into 10 frequency bands and processes these channels using the signal from the MIC 
IN jack or the right channel input as envelope signal. 

Note :  When wanting to use the left channel input for a microphone, the signal must first 
be amplified by a preamplifier (mixer or similar). 

Effect simulating a rotary speaker 

Distortion effect using ping-pong delay and chorus, suitable for vocals 

16  SFX

VOCODER / 1 – 4 : Vocoder Type 

Vocoder Distortion 

Sens

ROTARY / 5  – 8 : Rotary Type

Horn Speed

Rotor Speed

Vocal Distortion / 9 – 12 : Distortion Type 

Delay Time 11 – 370 mS

Delay Mix

ZNR / 13 – 16 : ZNR Threshold

Depth - L

Depth - R

ZOOM Noise Reduction (adjustable for L and R separately) 

* For every effect, pattern 1 is the "demo" (recommended) setting.