ampdb/dbamp/cpsoct/cpspch/octcps/octpch/pchcps/pchoct/boost
convert various formats of notation and amplitude
SYNOPSIS
#include "ugens.h"
float frequency, octpc, linoct, amp, decibel;
frequency = cpsoct(linoct);
frequency = cpspch(octpch);
linoct = octcps(frequency);
linoct = octpch(frequency);
octpc = pchcps(frequency);
frequency = pchoct(linoct);
amp = ampdb(decibel);
decibel = dbamp(amp);
amp = boost(decibel);
DESCRIPTION
These are functions which convert values between linear
octaves, octave.pitch-class, cycles per second, and sampling
increment. There are also two amplitude conversion routines.
cpsoct(oct)
- convert linear octaves to cycles per second.
cpspch(pch)
- convert octave.pitch-class to cycles per second.
octcps(cps)
- convert cycles per second to linear octaves.
octpch(pch)
- convert octave.pitch-class to linear octaves.
pchcps(cps)
convert cycles per second to octave.pitch-class.
pchoct(oct)
- convert linear octaves to octave.pitch-class.
ampdb(db)
- convert amp in decibels to a real amplitude.
dbamp(amp)
- convert real amplitude to an amp in decibels.
boost(db)
- converts an amplitude in decibels to an amplitude multiplier. It simply returns 10 ** (db/20).
See also the
cpspch and
pchcps (etc...)
scorefile commands for more information about these representations.