view yeti/templates.yeti @ 88:97b77e7cb94c timing

Store templates as doubles instead of floats

module templates;

vec = load may.vector;
mat = load may.matrix;

// Load instrument templates

instruments = [
    "bassoon",
    "cello",
    "clarinet",
    "flute",
    "guitar",
    "horn",
    "oboe",
    "tenorsax",
    "violin",
    "piano-maps-SptkBGCl"
];

loadTemplates () = mapIntoHash id
    do instrument:
        readFile "../data/\(instrument).csv" "UTF-8"
            do istr:
                mat.fromColumns
                   (map do line:
                        vec.fromList (map number (strSplit "," line))
                    done (istr.lines ()));
            done;
    done instruments;

hardcodedRanges = [
    "bassoon": { lowest = 15, highest = 51 },
    "cello": { lowest = 15, highest = 60 },
    "clarinet": { lowest = 29, highest = 68 },
    "flute": { lowest = 39, highest = 72 },
    "guitar": { lowest = 19, highest = 55 },
    "horn": { lowest = 20, highest = 56 },
    "oboe": { lowest = 37, highest = 70 },
    "tenorsax": { lowest = 23, highest = 54 },
    "violin": { lowest = 34, highest = 72 },
    "piano-maps-SptkBGCl": { lowest = 16, highest = 72 },
];

//!!! these ranges are hardcoded, in the original (and are a bit more restrictive)
extractRanges' templates = mapIntoHash id
    do instrument:
        levels = map vec.sum (mat.asColumns (templates[instrument]));
        first = length levels - length (find (>0) levels);
        last = length (find (>0) (reverse levels)) - 1;
        { lowest = first, highest = last }
    done (keys templates);

extractRanges templates = hardcodedRanges;

{
    loadTemplates,
    extractRanges
}