ampdbfs
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ampdbfs

ampdbfs — Returns the amplitude equivalent of the decibel value x, which is relative to full scale amplitude.

Description

Returns the amplitude equivalent of the decibel value x, which is relative to full scale amplitude. Full scale is assumed to be 16 bit. New is Csound version 4.10.

Syntax

ampdbfs(x)  (no rate restriction)

Examples

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

Example 34. Example of the ampdbfs 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
; Audio out   Audio in
-odac           -iadc    ;;;RT audio I/O
; For Non-realtime ouput leave only the line below:
; -o ampdbfs.wav -W ;;; for file output any platform
</CsOptions>
<CsInstruments>

; Initialize the global variables.
sr = 44100
kr = 4410
ksmps = 10
nchnls = 1

; Instrument #1.
instr 1
  idb = -1
  iamp = ampdbfs(idb)

  print iamp
endin


</CsInstruments>
<CsScore>

; Play Instrument #1 for one second.
i 1 0 1
e


</CsScore>
</CsoundSynthesizer>


Its output should include lines like: 

instr 1:  iamp = 29203.621

See Also

ampdb, dbamp, dbfsamp, 0dbfs

Credits

Example written by Kevin Conder.

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