minor bug in an IEnvGen example

[eleses]

The documentation contains the following example (2nd one):

// index with an SinOsc ... mouse controls amplitude of SinOsc
// use offset so negative values of SinOsc will map into the Env
(
{
    var sin = SinOsc.ar(440, 0, MouseX.kr(0, 1));
    // use offset so negative values of SinOsc will map into the Env
    var env = Env([-1, -0.7, 0.7, 1], [ 0.8666, 0.2666, 0.8668 ], \lin, -1.0);
    IEnvGen.ar(env, sin) * 0.1
}.play;
)

The line beginning with var env should most likely read

var env = Env([-1, -0.7, 0.7, 1], [ 0.8666, 0.2666, 0.8668 ], \lin, offset: -1.0);

instead. Offset is not the next parameter in order to Env; releaseNode is the next param but it has no effect here. You will get some DC-biased sound (hopefully unbiased by your output capacitor before it reaches speakers/phones) out of the example as-is (without offset), but it's probably not what's intended given the comment right above it...