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b Statement

This statement resets the clock.

Syntax

b p1

Performance

p1 -- Specifies how the clock is to be set.

Special Considerations

p1 is the number of beats by which p2 values of subsequent i statements are modified. If p1 is positive, the clock is reset forward, and subsequent notes appear later, the number of beats specified by p1 being added to the note's p2. If p1 is negative, the clock is reset backward, and subsequent notes appear earlier, the number of beats specified by p1 being subtracted from the note's p2. There is no cumulative affect. The clock is reset with each b statement. If p1 = 0, the clock is returned to its original position, and subsequent notes appear at their specified p2.

Examples

Here is an example of the C statement. It uses the file b-modern.csd.

Example of the C statement.
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<CsoundSynthesizer>
<CsOptions>
; Select audio/midi flags here according to platform
-odac -d  ;;;realtime audio out
;-iadc    ;;;uncomment -iadc if RT audio input is needed too
; For Non-realtime ouput leave only the line below:
; -o b.wav -W ;;; for file output any platform
</CsOptions>
<CsInstruments>

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

instr 1
  dur:i = p3
  env:a = expseg(0.01, dur*0.25, 1, dur*0.75, 0.01)
  sig:a = poscil3(0.4*env, 220, 1)
  outs(sig, sig)
endin

instr 2
  sig:a = pluck(0.7, p4, 220, 0, 1)
  outs(sig, sig)
endin

instr 3
  sig:a = loscil(0.8, 1, 2, 1)
  outs(sig, sig)
endin

instr 4
  sig:a = bamboo(0.8, 0.01)
  outs(sig, sig)
endin
</CsInstruments>
<CsScore>
f 1 0 16384 10 1           ;sine wave
f 2 0 0 1 "fox.wav" 0 0 0  ;sample

i1  0 2
i1  10 2

b 5           ; set the clock "forward"
i2 1 2 220    ; start time = 6
i2 2 2 110    ; start time = 7

B -6          ; move clock back
i3 3   2      ; start time = 2
i3 5.5 1      ; start time = 4.5


b 0           ; reset clock to normal
i4 10  2      ; start time = 10

e
</CsScore>
</CsoundSynthesizer>

Here is an example of the C statement. It uses the file b.csd.

Example of the C statement.
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<CsoundSynthesizer>
<CsOptions>
; Select audio/midi flags here according to platform
-odac     ;;;realtime audio out
;-iadc    ;;;uncomment -iadc if RT audio input is needed too
; For Non-realtime ouput leave only the line below:
; -o b.wav -W ;;; for file output any platform
</CsOptions>
<CsInstruments>

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

instr 1

aenv expseg .01, p3*0.25, 1, p3*0.75, 0.01
asig poscil3 .4*aenv, 220, 1
     outs asig, asig

endin

instr 2

asig pluck 0.7, p4, 220, 0, 1
     outs asig, asig

endin

instr 3

asig loscil .8, 1, 2, 1
     outs asig, asig

endin

instr 4
asig  bamboo .8, 0.01
      outs asig, asig

endin
</CsInstruments>
<CsScore>
f 1 0 16384 10 1        ;sine wave
f 2 0 0 1 "fox.wav" 0 0 0   ;sample

i1  0 2
i1  10 2

b 5         ; set the clock "forward"
i2 1 2 220      ; start time = 6
i2 2 2 110      ; start time = 7

B -6            ; move clock back
i3 3   2        ; start time = 2
i3 5.5 1        ; start time = 4.5


b 0         ; reset clock to normal
i4 10 2         ; start time = 10

e
</CsScore>
</CsoundSynthesizer>

See Also

Score Statements

Credits

Explanation suggested and example provided by Paul Winkler. (Csound Version 4.07)