lpslot

lpslot — Selects the slot to be use by further lp opcodes.

Description

Selects the slot to be use by further lp opcodes.

Syntax

lpslot islot

Initialization

islot -- number of slot to be selected.

Performance

lpslot selects the slot to be use by further lp opcodes. This is the way to load and reference several analyses at the same time.

Examples

Here is an example of the lpslot opcode. It uses the file lpslot.csd.

Example 577. Example of the lpslot opcode.

See the sections Real-time Audio and Command Line Flags for more information on using command line flags.

<CsoundSynthesizer>
<CsOptions>
; Select audio/midi flags here according to platform
-odac --limiter=0.9 ;;;realtime audio out and limiter
;-iadc    ;;;uncomment -iadc if realtime audio input is needed too
; For Non-realtime ouput leave only the line below:
; -o lpslot.wav -W ;;; for file output any platform
</CsOptions>
<CsInstruments>

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

; by Menno Knevel 2021

ires1 system_i 1,{{ lpanal -a -p40 -h200 -P50  -Q5000 -v1 fox.wav fox.lpc }}
ires2 system_i 1,{{ lpanal -a -p40 -h200 -P50  -Q5000 -v1 stereoJungle.wav stereoJungle.lpc }}

instr 1 ; lpinterp works only with poles files.

isine  ftgen 1, 0, 1024, 10, 1     ; sine wave
ilen1  filelen "fox.wav"            ; get length of soundfiles
ilen2  filelen "stereoJungle.wav"  
prints "fox.wav = %f seconds and stereoJungle.wav = %f seconds\\n",ilen1, ilen2
asrc   buzz .5, 440, 20, 1
  
ktime  line 0, p3, p3              ; from start to end for fox.wav
       lpslot 0                    ; Read data poles
krmsr, krmso, kerr, kcps lpread ktime,"fox.lpc"                     
       lpslot 1                    ; Read data poles
krmsr, krmso, kerr, kcps lpread ktime,"stereoJungle.lpc"
kmix   line 0, p3, 1               ; mixing the 2 lpc files
       lpinterp 1, 0, kmix         ; move from jungle (slot 1) to fox (slot 0)
ares   lpreson asrc
aout   balance ares, asrc
       outs aout, aout

endin

</CsInstruments>
<CsScore>
s 
i1 0 2.8        	
i1 5 6.75
i1 15 8        ; last frame freezes until note end (6.75-8 secs)

e
</CsScore>
</CsoundSynthesizer>


See also

Linear Predictive Coding (LPC) Resynthesis

Credits

Author: Mark Resibois
Brussels
1996

New in version 3.44