Only operational for stereo samples, width defines the amount of channel mixing applied to play the sample.

A width value of 0 makes a stereo sample play as if it were mono (adding both channels and compensating for the resulting volume change). A value of 100 will make the stereo sample play as original.

Any value in between will mix left and right channels with a part of the other, resulting in a narrower stereo field image.

Negative width values will reverse left and right channels.

Note: Range in the table is specified as -100 to 100. Some players, such as Aria/Sforzando, do not clamp the range. Values over 100 expand the stereo width. For example, for a mono signal panned 6dB to the left, a value of 200 produces the mono signal panned 12dB to the left.


width=100 // stereo
width=0   // play this stereo sample as mono
width=50  // mix 50% of one channel with the other
Name Version Type Default Range Unit
width SFZ v1 float 100 -100 to 100 %
width_onccN SFZ v2 N/A N/A N/A
width_curveccN SFZ v2 integer 0 0 to 255 N/A
width_smoothccN SFZ v2 N/A N/A N/A
width_stepccN SFZ v2 N/A N/A N/A

Other modulations

  • Envelope: ✓
  • LFO: ✓

Category: Performance Parameters, Amplifier