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SampleX
SampleX is an integrated developing environment aimed at simple audio synthesis, through a easy-to-understand high level language and a dedicated interpreter.
It can be divided into three functional blocks:
It can be divided into three functional blocks:
- A parser/lexer, which builds an APT (Abstract Parse Tree) starting from the source code
- A synthesis engine, which explores the APT and creates the audio data
- A minima IDE, with code wizards and syntax highlighting, which can be used to easily create the source code
SampleX grammar (Backus Naur Form)
- Start ::= SampleBlock <EOF>
- SampleBlock ::= Init Sources
- Init ::= "Init" "{" InitParams "}"
- InitParams ::= FileName ( InitChannels )? ( InitSRate )?
- FileName ::= "Name" "=" <V_NAME> ";"
- InitChannels ::= "Channels" "=" <V_CHANNELS> ";"
- InitSRate ::= "Samplerate" "=" <V_NUMBER> ";"
- Sources ::= "Sources" "{" ( SourceDescriptor )+ "}"
- SourceDescriptor ::= Source | WavFile
- Source ::= "Source" <V_NAME> "[" ( OscillatorParamList )+ "]"
- OscillatorParamList ::= OscillatorSettings | OscillatorModifiers
- OscillatorSettings ::= Waveform | Volume
- OscillatorModifiers ::= Amplitude | Frequency | Pan | Loop
- Waveform ::= "Waveform" "=" <V_WAVEFORM> ";"
- Volume ::= "Volume" "=" <V_NUMBER> ";"
- Amplitude ::= "Amplitude" "(" AmplitudeParamList ")"
- Frequency ::= "Frequency" "(" FrequencyParamList ")"
- Pan ::= “Pan” "(" PanParams ")"
- Loop ::= “Loop” "(" LoopParams ")"
- AmplitudeParamList ::= ( AmplitudeParameter )+
- AmplitudeParameter ::= Delay | Attack | Decay | Sustain |
- Release | Amp | SusAmp | EnvType
- Delay ::= "Delay" "=" <V_NUMBER> ";"
- Attack ::= "Attack" "=" <V_NUMBER> ";"
- Decay ::= "Decay" "=" <V_NUMBER> ";"
- Sustain ::= "Sustain" "=" <V_NUMBER> ";"
- Release ::= "Release" "=" <V_NUMBER> ";"
- Amp ::= "Amp" "=" <V_NUMBER> ";"
- SusAmp ::= "SusAmp" "=" <V_NUMBER> ";"
- EnvType ::= "EnvType" "=" <V_NUMBER> ";"
- FrequencyParamList ::= ( FrequencyParameter )+
- FrequencyParameter ::= StartF | EndF | FreqEnvType
- StartFrequency ::= "StartFrequency" "=" FreqValue ";"
- EndFrequency ::= "EndFrequency" "=" FreqValue ";"
- FreqEnvType ::= “EnvType” "=" <V_ENVTYPE> ";"
- FreqValue ::= Note | <V_NUMBER>
- Note ::= "Note" "(" <V_NOTE> ")"
- LoopParams ::= ( LoopParameter )+
- LoopParameter ::= Times | Every | GlobalDelay
- Times ::= "Times" "=" <V_NUMBER> ";"
- Every ::= "Every" "=" <V_NUMBER> ";"
- GlobalDelay ::= "GlobalDelay" "=" <V_NUMBER> ";"
- PanParams ::= PanParameter
- PanParameter ::= PanPosition | PanLfoParamList
- PanPosition ::= “Position” "=" <V_NUMBER> ";"
- PanLfoParamList ::= ( PanLfoParameter )+
- PanLfoParameter ::= LfoFrequency | LfoWaveform
- LfoFrequency ::= "LfoFrequency" "="<V_NUMBER> ";"
- LfoWaveform ::= "Waveform" "=" <V_WAVEFORM> ";"
- WavFile ::= "WaveFile" <V_NAME> "[" ( WavFileParamList )+ "]"
- WavFileParamList ::= WavFileSettings | WavFileModifiers
- WavFileSettings ::= Path | Volume | Length | Offset | Delay
- WavFileModifiers ::= Pan | Loop
- Path ::= "Path" "=" <V_PATH> ";"
- Length ::= "Length" "=" <V_NUMBER> ";"
- Offset ::= "Offset" "=" <V_NUMBER> ";"
