view examples/iAudioDB/rdf/qm_mfcc.n3 @ 693:b1723ae7675e

begin work on sampling API

This is motivated by the need to be able to sample with arbitrary feature data
(e.g. from a feature file) against a database, for the JNMR "collections" paper
revisions or possible ISMIR paper revisions.  That bit doesn't work yet, but
the C-ified version of the current functionality (sample db x db and
sample key x db) works to the level of anecdotal tests.

The general approach is to mirror the _query_spec() API, where a whole heap
of knobs and twiddles are available to the user.  Unlike in the _query_spec()
API, not quite all of the knobs make sense (and even fewer are actually
implemented), but the basic idea is the same.

I pity the poor chump who will have to document all this.

@prefix xsd:      <http://www.w3.org/2001/XMLSchema#> .
@prefix vamp:     <http://purl.org/ontology/vamp/> .
@prefix :         <#> .

:transform a vamp:Transform ;
    vamp:plugin <http://vamp-plugins.org/rdf/plugins/qm-vamp-plugins#qm-mfcc> ;
    vamp:step_size "HOP_SIZE"^^xsd:int ; 
    vamp:block_size "WINDOW_SIZE"^^xsd:int ; 
    vamp:parameter_binding [
        vamp:parameter [ vamp:identifier "logpower" ] ;
        vamp:value "1"^^xsd:float ;
    ] ;
    vamp:parameter_binding [
        vamp:parameter [ vamp:identifier "nceps" ] ;
        vamp:value "20"^^xsd:float ;
    ] ;
    vamp:parameter_binding [
        vamp:parameter [ vamp:identifier "wantc0" ] ;
        vamp:value "1"^^xsd:float ;
    ] ;
    vamp:output <http://vamp-plugins.org/rdf/plugins/qm-vamp-plugins#qm-mfcc_output_coefficients> .