Good idea with the random phase
We did pseudo PWM with two identical arbitrary waves, one inverted, but
not what you describe with random phase
Am 14.03.2018 um 13:06 schrieb Frank Sheeran:
> Another disadvantage was that you get a noticable chirp transient when
> the phases realign after
> Another disadvantage was that you get a noticable chirp transient when
> the phases realign after one complete cycle of the wavetable.
Just put them in the buffer with random phases and they'll never re-align.
That's not what a piano does of course, but might be servicable.
BTW, my synth does
Am 14.03.2018 um 12:00 schrieb robert bristow-johnson:
> 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?
yes, bad wording
it doesn't have
Original Message
Subject: Re: [music-dsp] Wavetable File Formats?
From: "gm" <g...@voxangelica.net>
Date: Wed, March 14, 2018 6:46 am
To: music-dsp@mu
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@mu
Another disadvantage was that you get a noticable chirp transient when
the phases
realign after one complete cycle of the wavetable.
You don't have this in a piano since the phases never realign again
after the initial strike
so you have the transient only at the onset of the note.
Am
Some years ago I tried to make a "stretched partials" sawtooth this way
and found that the tables get prohibitively large
since you are restricted to common devisors or integer multiples for the
"spin cycles"
and phase steps of the partials.
The second lowest partial needs to make at least one
Below is my interpretation of the cool partial-shifting method Robert has
proposed. (I'm just trying to understand, no claim to originality.)
As far as I understand it, the method obtains, from a harmonic waveform, a
family of new waveforms where the partials are selectively pitch-shifted,
but
> imagine it's two-dimensional vector synthesis like a Prophet VS. one
> dimension is some other timbre parameter with a minimum and a maximum
> (no wrap around).
>
> so, in the other dimension, imagine having say, 6 identical wavetables
> except the 2nd harmonic is offset by 60 degrees in phase
Original Message
Subject: Re: [music-dsp] Wavetable File Formats?
From: "Risto Holopainen" <ebel...@ristoid.net>
Date: Mon, March 12, 2018 1:19 pm
To: music-dsp@mu
Thanks for your friendly comments, Robert!
First of all, I probably need to clarify that I'm not trying to make a
traditional synth application out of these wavetables, but I will use
some of them in my own compositions in one way or another.
>
> 1. "The wavetables are written to an array
Original Message
Subject: Re: [music-dsp] Wavetable File Formats?
From: "Risto Holopainen" <ebel...@ristoid.net>
Date: Sat, March 10, 2018 11:58 am
To: music-dsp@mu
On 03/10/2018 12:40 PM, Andy Drucker wrote:
Just to note, WaveEdit *does* let you draw in the spectrum. It's the
only tool I can think of that seamlessly allows edits in both domains at
once, and allows non-mathematical users to "puzzle out" the relation
between the two in a hands-on way.
>What I notice in so many of the existing tools in this niche is that they
all let you "draw your own waveform!!" as if that's something you'd
actually want to do. It always seemed obvious to me that at least drawing
the harmonic spectrum would be far more useful, so why this "draw waveform"
Den 2018-03-10 kl. 16:33, skrev Frank Sheeran:
>
> What I notice in so many of the existing tools in this niche is that
> they all let you "draw your own waveform!!" as if that's something
> you'd actually want to do. It always seemed obvious to me that at
> least drawing the harmonic
>
>
>
> There's an open-source wavetable editor:
>
> https://github.com/AndrewBelt/WaveEdit
Thanks Eric.
> This was written by Andrew Belt (author of VCV Rack) under commission
> from Synthesis Technology for creating wavetables for their line of
> Eurorack wavetable oscillators. Several
Hi Frank. I’ve never messed with these, but it seems obvious that they are
either going to have a predictable format (that they specify *somewhere*, if
they intend to let people sue anything but their own editor), or add/expect
additional info bundled in the wave file (in which case they’d also
I've written a Wavetable Oscillator for my modular software synthesizer.
Surveying the synth software I can find (Serum, XRSDO, etc.) it seems that
they all store wavetables in WAV files, PCM format, which I'm able to read
and use with libsndfile.
However, is there any idea how I can tell how
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