音程があるような音の場合 周波数解像度はその音程をあらわす周波数の70％から80％にする。（ラの音の楽器なら440Hzの0.8倍の352Hz) 分析窓の幅は周波数解像度の二倍。(352*2=704Hz) 変化の早い音 分析窓の周波数は800Hz（ボンゴの高速なロール） CropTime …

A variety of simple model-domain transformations are implemented in Loris. You can apply these transformations to the partials obtained in an analysis, and then render a new sound from the modified partials. Lorisで色々な音の変形が出来る。…

It is a simple matter to write a small program that uses the Loris procedural interface to analyze a sound and store the partials, or synthesize a new sound from the partials and create a new samples file. 音ををまず分析しpartialにデータを…

The analyze function in the Loris procedural interface performs an analysis according to the current configuration of analysis parameters. It is an error to call analyze before calling analyzer_configure. 最初にanalyze_configureを呼んでパ…

The partials constructed in the Loris analysis process are not strictly sinusoidal. Bandwidth enhancement is a technique for combining sinusoidal energy and noise energy into a single partial having time-varying frequency, amplitude, and n…

The Loris analyzer employs a Kaiser analysis window for short-time spectral analysis. The Kaiser window is parameterized to allow specification of not only the length of the window, the primary determinant of the main lobe width, but also …

For quasi-harmonic sounds, it is appropriate to ignore any spectral energy below the fundamental frequency, so by default, the Loris analyzer does not consider spectral components having frequencies less than the specified frequency resolu…

For ordinary choices of hop time,there is some redundancy in the spectral analysis data.But not all of the data is of equal reliability. In a short-time segement, analysis data may represent events that are near the tapered ends of the ana…

The hop time parameter specifies the time difference between successive short-time analysis window centers used to construct the reassigned spectal surface. Data is generally obtained from each analysis window for all partials active at th…

The frequency drift parameter governs the amount by which the frequency of a partial can change between two consecutive data points extracted from the reassigned spectral surface. This parameter is generally set equal to half the frequency…

The shape of the short-time analysis window governs the time-frequency resolution of the reassigned spectral surface, from which bandwidth-enhanced partials are derived. An analysis window that is short in time, and therefore wide in frequ…

The frequency resolution parameter controls the frequency density of partials in the model data. Two partials will, at any instant, differ in frequency by no less than the specified frequency resolution. The frequency resolution should be …

You will use an Open Source sound modeling and processing software package called Loris to experiment with additive sound modeling and manipulation in the model domain. Loris is a C++ class library, but much of its functionality is availab…

The most common kind of sound model the so-called additive sound model, in which a sound is represented by a collection of sinusoids having amplitudes and frequencies that vary over time. The model is called "additive" because the individu…

The Reassigned Bandwidth-Enhanced Additive Sound Model is a high-fidelity representation that allows manipulations and transformations to be applied to a great variety of sounds, including noisy and non-harmonic sounds. Sound modeling and …

あまりに解らないので、Lorisを利用したサウンドモデリング(http://www.cerlsoundgroup.org/Loris/Modeling.html)を読んでみる。老化のせいか？読むたびに頭から消えてゆく。よし、日本語に訳してやる。結局Lorisやreassigned bandwidth-enhanced additive S…