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

Example 1. Example of the ampdbfs opcode.

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

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

      print iamp
    endin
    /* ampdbfs.orc */

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

Its output should include lines like:

    instr 1:  iamp = 29203.621

## See Also

ampdb, dbamp, dbfsamp

## Credits

Example written by Kevin Conder.

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