---------------------------- Original Message ---------------------------- Subject: Re: [music-dsp] Wavetable File Formats? From: "gm" <g...@voxangelica.net> Date: Wed, March 14, 2018 6:39 am To: music-dsp@music.columbia.edu -------------------------------------------------------------------------- > Some years ago I tried to make a "stretched partials" sawtooth this way > and found that the tables get prohibitively large the *number* of wavetables gets large, right?� is that what you mean? it doesn't have anything to do with the size of the wavetable. with gigabytes of memory and 64-bit addressing space, i am not sure what is "prohibitive".� a regular sampled note can easily take up 1/2 meg.� how many 2048-point wavetables can you fit into that space?� or in a meg?� or 4 meg? > since you are restricted to common devisors or integer multiples for the > "spin cycles"�and phase steps of the partials. yes.� that is true. > > The second lowest partial needs to make at least one spin cycle, and > all higher partials need to make an integer multiple of that yes.� (but the integer multiple could be 1.) > which also makes their detuning relationships unnatural compared to > for instance a piano tone. more unnatural than flat? that the lower sharpened harmonics are detuned by, say, +5 Hz while higher harmonics are detuned by +10 Hz and still higher harmonics are detuned by 15 Hz?� that's unnatural (in comparison to flat, exact integer harmonic frequency ratios for all of the partials)? BTW, i really like the term "spin cycle".� sorta associates this cylinder with that in a washing machine. -- r b-j� � � � � � � � � � � � �r...@audioimagination.com "Imagination is more important than knowledge." � � � �
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