CsoundExpr.Opcodes.Control.Sensing

Sensing and Control

Documentation

button :: K k0 => k0 -> Krate

• opcode : button
• syntax :

   kres button knum

• description :

Sense on-screen controls. Requires Winsound or TCL/TK.

• url : http://www.csounds.com/manual/html/button.html

checkbox :: K k0 => k0 -> Krate

• opcode : checkbox
• syntax :

   kres checkbox knum

• description :

Sense on-screen controls. Requires Winsound or TCL/TK.

• url : http://www.csounds.com/manual/html/checkbox.html

control :: K k0 => k0 -> Krate

• opcode : control
• syntax :

   kres control knum

• description :

Configurable slider controls for realtime user input. Requires Winsound or TCL/TK. control reads a slider's value.

• url : http://www.csounds.com/manual/html/control.html

setctrl :: Irate -> Irate -> Irate -> SignalOut

• opcode : setctrl
• syntax :

   setctrl inum, ival, itype

• description :

Configurable slider controls for realtime user input. Requires Winsound or TCL/TK. setctrl sets a slider to a specific value, or sets a minimum or maximum range.

• url : http://www.csounds.com/manual/html/setctrl.html

sensekey :: MultiOut

• opcode : sensekey
• syntax :

   kres[, kkeydown] sensekey

• description :

Returns the ASCII code of a key that has been pressed, or -1 if no key has been pressed.

• url : http://www.csounds.com/manual/html/sensekey.html

xyin :: [Irate] -> Irate -> Irate -> Irate -> Irate -> Irate -> MultiOut

• opcode : xyin
• syntax :

   kx, ky xyin iprd, ixmin, ixmax, iymin, iymax [, ixinit] [, iyinit]

• description :

Sense the cursor position in an output window. When xyin is called the position of the mouse within the output window is used to reply to the request. This simple mechanism does mean that only one xyin can be used accurately at once. The position of the mouse is reported in the output window.

• url : http://www.csounds.com/manual/html/xyin.html

follow :: Arate -> Irate -> Arate

• opcode : follow
• syntax :

   ares follow asig, idt

• description :

Envelope follower unit generator.

• url : http://www.csounds.com/manual/html/follow.html

follow2 :: (K k0, K k1) => Arate -> k0 -> k1 -> Arate

• opcode : follow2
• syntax :

   ares follow2 asig, katt, krel

• description :

A controllable envelope extractor using the algorithm attributed to Jean-Marc Jot.

• url : http://www.csounds.com/manual/html/follow2.html

peakA :: Arate -> Krate

• opcode : peak
• syntax :

   kres peak asig
   kres peak ksig

• description :

These opcodes maintain the output k-rate variable as the peak absolute level so far received.

• url : http://www.csounds.com/manual/html/peak.html

peakK :: K k0 => k0 -> Krate

• opcode : peak
• syntax :

   kres peak asig
   kres peak ksig

• description :

These opcodes maintain the output k-rate variable as the peak absolute level so far received.

• url : http://www.csounds.com/manual/html/peak.html

rms :: [Irate] -> Arate -> Krate

• opcode : rms
• syntax :

   kres rms asig [, ihp] [, iskip]

• description :

Determines the root-mean-square amplitude of an audio signal. It low-pass filters the actual value, to average in the manner of a VU meter.

• url : http://www.csounds.com/manual/html/rms.html

ptrack :: [Irate] -> Arate -> Irate -> MultiOut

• opcode : ptrack
• syntax :

   kcps, kamp ptrack asig, ihopsize[,ipeaks]

• description :

ptrack takes an input signal, splits it into ihopsize blocks and using a STFT method, extracts an estimated pitch for its fundamental frequency as well as estimating the total amplitude of the signal in dB, relative to full-scale (0dB). The method implies an analysis window size of 2*ihopsize samples (overlaping by 1/2 window), which has to be a power-of-two, between 128 and 8192 (hopsizes between 64 and 4096). Smaller windows will give better time precision, but worse frequency accuracy (esp. in low fundamentals).This opcode is based on an original algorithm by M. Puckette.

• url : http://www.csounds.com/manual/html/ptrack.html

pitch :: [Irate] -> Arate -> Irate -> Irate -> Irate -> Irate -> MultiOut

• opcode : pitch
• syntax :

   koct, kamp pitch asig, iupdte, ilo, ihi, idbthresh [, ifrqs] [, iconf] 
       [, istrt] [, iocts] [, iq] [, inptls] [, irolloff] [, iskip]

• description :

Using the same techniques as spectrum and specptrk, pitch tracks the pitch of the signal in octave point decimal form, and amplitude in dB.

• url : http://www.csounds.com/manual/html/pitch.html

pitchamdf :: [Irate] -> Arate -> Irate -> Irate -> MultiOut

• opcode : pitchamdf
• syntax :

   kcps, krms pitchamdf asig, imincps, imaxcps [, icps] [, imedi] 
       [, idowns] [, iexcps] [, irmsmedi]

• description :

Follows the pitch of a signal based on the AMDF method (Average Magnitude Difference Function). Outputs pitch and amplitude tracking signals. The method is quite fast and should run in realtime. This technique usually works best for monophonic signals.

• url : http://www.csounds.com/manual/html/pitchamdf.html

tempest :: K k0 => [Irate] -> k0 -> Irate -> Irate -> Irate -> Irate -> Irate -> Irate -> Irate -> Irate -> Irate -> Krate

• opcode : tempest
• syntax :

   ktemp tempest kin, iprd, imindur, imemdur, ihp, ithresh, ihtim, ixfdbak, 
       istartempo, ifn [, idisprd] [, itweek]

• description :

Estimate the tempo of beat patterns in a control signal.

• url : http://www.csounds.com/manual/html/tempest.html

tempo :: K k0 => k0 -> Irate -> SignalOut

• opcode : tempo
• syntax :

   tempo ktempo, istartempo

• description :

Apply tempo control to an uninterpreted score.

• url : http://www.csounds.com/manual/html/tempo.html

miditempo :: Krate

• opcode : miditempo
• syntax :

   ksig miditempo

• description :

Returns the current tempo at k-rate, of either the MIDI file (if available) or the score

• url : http://www.csounds.com/manual/html/miditempo.html

tempoval :: Krate

• opcode : tempoval
• syntax :

   kres tempoval

• description :

Reads the current value of the tempo.

• url : http://www.csounds.com/manual/html/tempoval.html

seqtime :: (K k0, K k1, K k2, K k3, K k4) => k0 -> k1 -> k2 -> k3 -> k4 -> Krate

• opcode : seqtime
• syntax :

   ktrig_out seqtime ktime_unit, kstart, kloop, kinitndx, kfn_times

• description :

Generates a trigger signal according to the values stored in a table.

• url : http://www.csounds.com/manual/html/seqtime.html

seqtime2 :: (K k0, K k1, K k2, K k3, K k4, K k5) => k0 -> k1 -> k2 -> k3 -> k4 -> k5 -> Krate

• opcode : seqtime2
• syntax :

   ktrig_out seqtime2 ktrig_in, ktime_unit, kstart, kloop, kinitndx, kfn_times

• description :

Generates a trigger signal according to the values stored in a table.

• url : http://www.csounds.com/manual/html/seqtime2.html

trigger :: (K k0, K k1, K k2) => k0 -> k1 -> k2 -> Krate

• opcode : trigger
• syntax :

   kout trigger ksig, kthreshold, kmode

• description :

Informs when a krate signal crosses a threshold.

• url : http://www.csounds.com/manual/html/trigger.html

timedseq :: (K k0, K k1) => k0 -> Irate -> [k1] -> Krate

• opcode : timedseq
• syntax :

   ktrig timedseq ktimpnt, ifn, kp1 [,kp2, kp3,...,kpN]

• description :

An event-sequencer in which time can be controlled by a time-pointer. Sequence data are stored into a table.

• url : http://www.csounds.com/manual/html/timedseq.html

changed :: K k0 => [k0] -> Krate

• opcode : changed
• syntax :

   ktrig changed kvar1 [, kvar2,..., kvarN]

• description :

This opcode outputs a trigger signal that informs when any one of its k-rate arguments has changed. Useful with valuator widgets or MIDI controllers.

• url : http://www.csounds.com/manual/html/changed.html

getcfg :: Irate -> String

• opcode : getcfg
• syntax :

   Svalue getcfg iopt

• description :

Return various configuration settings in Svalue as a string at init time.

• url : http://www.csounds.com/manual/html/getcfg.html

rewindscore :: SignalOut

• opcode : rewindscore
• syntax :

   rewindscore

• description :

Rewinds the playback position of the current score performance..

• url : http://www.csounds.com/manual/html/rewindscore.html