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GStreamer Buzztard Reference Manual | ![]() |
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Top | Description | Object Hierarchy | Implemented Interfaces | Properties |
GObject +----GstObject +----GstElement +----GstBaseSrc +----GstBtAudioSynth +----GstBtSidSyn
GObject +----GstObject +----GstBtSidSynV
GstBtSidSyn implements GstBtTempo, GstPreset, GstChildProxy, GstBtChildBin and GstBtPropertyMeta.
GstBtSidSynV implements GstBtPropertyMeta.
"band-pass" gboolean : Read / Write "children" gulong : Read / Write "chip" GstBtSidSynChip : Read / Write "cut-off" guint : Read / Write "hi-pass" gboolean : Read / Write "low-pass" gboolean : Read / Write "resonance" guint : Read / Write "tuning" GstBtToneConversionTuning : Read / Write "voice3-off" gboolean : Read / Write "volume" guint : Read / Write "attack" guint : Read / Write "decay" guint : Read / Write "effect-type" GstBtSidSynEffect : Write "effect-value" guint : Write "fiter-voice" gboolean : Read / Write "note" GstBtNote : Write "pulse-width" guint : Read / Write "release" guint : Read / Write "ringmod" gboolean : Read / Write "sustain" guint : Read / Write "sync" gboolean : Read / Write "test" gboolean : Read / Write "wave" GstBtSidSynWave : Read / Write
A synthesizer based on the RSID emulation library of the C64 sound chip. The element provides a sound generator with 3 voices. It implements a couple of effects (see GstBtSidSynEffect), which are well known from trackers such as pitch slides, arpeggio and vibrato.
For technical details see: http://en.wikipedia.org/wiki/MOS_Technology_SIDTechnical_details. http://www.waitingforfriday.com/index.php/Commodore_SID_6581_Datasheet.
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gst-launch sidsyn num-buffers=1000 voice0::note="c-4" ! autoaudiosink |
typedef enum { GSTBT_SID_SYN_EFFECT_ARPEGGIO = 0, GSTBT_SID_SYN_EFFECT_PORTAMENTO_UP = 1, GSTBT_SID_SYN_EFFECT_PORTAMENTO_DOWN = 2, GSTBT_SID_SYN_EFFECT_PORTAMENTO = 3, GSTBT_SID_SYN_EFFECT_VIBRATO = 4, GSTBT_SID_SYN_EFFECT_GLISSANDO_CONTROL = 0xE3, GSTBT_SID_SYN_EFFECT_VIBRATO_TYPE = 0xE4, GSTBT_SID_SYN_EFFECT_FINETUNE = 0xE5, GSTBT_SID_SYN_EFFECT_NONE = 0xFF, } GstBtSidSynEffect;
Track effects.
arpeggio | |
portamento up | |
portamento down | |
portamento | |
vibrato | |
glissando control | |
vibrato type | |
finetune | |
none |
typedef enum { GSTBT_SID_SYN_WAVE_TRIANGLE = (1<<0), GSTBT_SID_SYN_WAVE_SAW = (1<<1), GSTBT_SID_SYN_WAVE_SAW_TRIANGLE = ((1<<1)|(1<<0)), GSTBT_SID_SYN_WAVE_PULSE = (1<<2), GSTBT_SID_SYN_WAVE_PULSE_TRIANGLE = ((1<<2)|(1<<0)), GSTBT_SID_SYN_WAVE_PULSE_SAW = ((1<<2)|(1<<1)), GSTBT_SID_SYN_WAVE_PULSE_SAW_TRIANGLE = ((1<<2)|(1<<1)|(1<<0)), GSTBT_SID_SYN_WAVE_NOISE = (1<<3) } GstBtSidSynWave;
Oscillator wave forms.
triangle wave | |
saw wave | |
saw + triangle wave | |
square wave with pulse width modulation | |
square + triangle wave | |
square + saw wave | |
square + saw + triangle wave | |
noise |
"band-pass"
property"band-pass" gboolean : Read / Write
Enable BandPass Filter.
Default value: FALSE
"children"
property"children" gulong : Read / Write
the number of children this element uses.
Allowed values: [3,3]
"chip"
property "chip" GstBtSidSynChip : Read / Write
Chip model to emulate.
Default value: MOS6581
"cut-off"
property"cut-off" guint : Read / Write
Audio filter cut-off frequency.
Allowed values: <= 2047
Default value: 1024
"low-pass"
property"low-pass" gboolean : Read / Write
Enable LowPass Filter.
Default value: FALSE
"resonance"
property"resonance" guint : Read / Write
Audio filter resonance.
Allowed values: <= 15
Default value: 2
"tuning"
property"tuning" GstBtToneConversionTuning : Read / Write
Harmonic tuning.
Default value: GSTBT_TONE_CONVERSION_EQUAL_TEMPERAMENT
"voice3-off"
property"voice3-off" gboolean : Read / Write
Detach voice 3 from mixer.
Default value: FALSE
"volume"
property"volume" guint : Read / Write
Volume of tone.
Allowed values: <= 15
Default value: 15
"effect-value"
property"effect-value" guint : Write
Effect parameter(s).
Allowed values: <= 255
Default value: 0
"pulse-width"
property"pulse-width" guint : Read / Write
Pulse Width.
Allowed values: <= 4095
Default value: 2048
"release"
property"release" guint : Read / Write
Release.
Allowed values: <= 15
Default value: 5
"sustain"
property"sustain" guint : Read / Write
Sustain.
Allowed values: <= 15
Default value: 10
"wave"
property"wave" GstBtSidSynWave : Read / Write
Oscillator waveform.
Default value: Triangle