skip initialization for flanger

[tjingboem]

There is none:
ares flanger asig, adel, kfeedback [, imaxd]

[jpffitch]

Code written to ski[p initialisation if maxd is negative.
Not tested and I need s test program before this issue can be closed

[tjingboem]

This would be a test example:

<CsoundSynthesizer>
<CsOptions>
-odac     ;;;realtime audio out
</CsOptions>
<CsInstruments>

sr = 44100
ksmps = 32
nchnls = 2
0dbfs = 1

instr 1

kfeedback = .7
imaxd     = -.1
asnd poscil .1, p4, -1, -1
adel linseg 0, p3*.5, 0.02, p3*.5, 0	;max delay time =20ms	
aflg flanger asnd, adel, kfeedback, imaxd
asig clip aflg, 1, 1
     outs asig+asnd, asig+asnd		;mix flanger with original

endin
</CsInstruments>
<CsScore>

i1.1 0 -1   150 
i1.1 5 -1   100
i1.1 10 -1   200
i1.1 15 5   150

e
</CsScore>
</CsoundSynthesizer>

In this case, imaxd is positive, so there is no LFO movement in the held notes (-1).
When your updated code is correct, the flanging movement should be heard and without clicks going from one note to another.

I chose poscil in sine mode, where the skip parameter can be set.