The Alternative Csound Reference Manual
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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 files dbfsamp.orc and dbfsamp.sco.

Example 1. Example of the dbfsamp opcode.

    /* dbfsamp.orc */
    ; Initialize the global variables.
    sr = 44100
    kr = 4410
    ksmps = 10
    nchnls = 1

    ; Instrument #1.
    instr 1
      iamp = 30000
      idb = dbfsamp(iamp)

      print idb
    endin
    /* dbfsamp.orc */

    /* dbfsamp.sco */
    ; Play Instrument #1 for one second.
    i 1 0 1
    e
    /* dbfsamp.sco */

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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