fmbell — Uses FM synthesis to create a tublar bell sound.
Uses FM synthesis to create a tublar bell sound. It comes from a family of FM sounds, all using 4 basic oscillators and various architectures, as used in the TX81Z synthesizer.
All these opcodes take 5 tables for initialization. The first 4 are the basic inputs and the last is the low frequency oscillator (LFO) used for vibrato. These all default to a siewave table.
The initial waves should be:
ifn1 -- sine wave
ifn2 -- sine wave
ifn3 -- sine wave
ifn4 -- sine wave
The optional argument isus controls how long the sound lasts, or how quickly it decays. It defaults to 4.
kamp -- Amplitude of note.
kfreq -- Frequency of note played.
kc1, kc2 -- Controls for the synthesizer:
kc1 -- Mod index 1
kc2 -- Crossfade of two outputs
Algorithm -- 5
kvdepth -- Vibrator depth
kvrate -- Vibrator rate
Here is an example of the fmbell opcode. It uses the file fmbell.csd.
Example 300. Example of the fmbell 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 -odac ;;;realtime audio out ;-iadc ;;;uncomment -iadc if realtime audio input is needed too ; For Non-realtime ouput leave only the line below: ; -o fmbell.wav -W ;;; for file output any platform </CsOptions> <CsInstruments> sr = 44100 ksmps = 32 nchnls = 2 0dbfs = 1 instr 1 kamp = p4 kfreq = 880 kc1 = p5 kc2 = p6 kvdepth = 0.005 kvrate = 6 asig fmbell kamp, kfreq, kc1, kc2, kvdepth, kvrate outs asig, asig endin instr 2 kamp = p4 kfreq = 880 kc1 = p5 kc2 = p6 kvdepth = 0.005 kvrate = 6 asig fmbell kamp, kfreq, kc1, kc2, kvdepth, kvrate, 1, 1, 1, 1, 1, p7 outs asig, asig endin </CsInstruments> <CsScore> ; sine wave. f 1 0 32768 10 1 i 1 0 3 .2 5 5 i 1 + 4 .3 .5 1 s i 2 0 12 .2 5 5 16 i 2 + 12 .3 .5 1 12 e </CsScore> </CsoundSynthesizer>