dbfsamp
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dbfsamp

dbfsamp — Returns the decibel equivalent of the raw amplitude x, relative to full scale amplitude.

Description

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

Syntax

dbfsamp(x)  (init-rate or control-rate args only)

Examples

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

Example 101. Example of the dbfsamp 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 dbfsamp.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
  iamp = 30000
  idb = dbfsamp(iamp)

  print idb
endin


</CsInstruments>
<CsScore>

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


</CsScore>
</CsoundSynthesizer>


Its output should include lines like this: 

instr 1:  idb = -0.767

See Also

ampdb, ampdbfs, dbamp

Credits

Example written by Kevin Conder.

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