Frequency Block Synthesis

[Innovative synthesis]

I already did. If you'd been reading properly, you'd know that.

I reply to a lot of posts.
Can you please repeat this reference with a link?

Do you mean Hydrasynth wavestack or else?

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[Gamma-UT]

Its still wavestacking, Your AI-based argument saying they're different was based entirely on false information.

Share your reference please as a link or something to know exactly what you are refeerring to as "wavestacking".

https://www.google.co.uk/books/edition/ ... frontcover

pp160-163 of the 1st edition. p148 in the 2nd edition.

[whyterabbyt]

I already did. If you'd been reading properly, you'd know that.

I reply to a lot of posts.

Clearly you dont actually read them, though, too busy feeding them into an AI so it can lie for you.

viewtopic.php?p=9092334#p9092334

[whyterabbyt]

Why does chatgpt refer to a definition of wavestack synthesis appearing in curtis roads microsounds when there is no definition in that book?

ChatGPT said:

You're right to question this — and you're not alone. Let's clarify what's going on.

The term "wavestack synthesis" does not appear with a formal definition in Curtis Roads' Microsound (2001). Some versions of ChatGPT may mistakenly refer to Roads' book as the source for this term, which is a kind of hallucination or inaccurate attribution.
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There is no explicit definition or section labeled "wavestack synthesis" in Microsound by Curtis Roads. If you've seen references claiming otherwise — including from AI-generated responses — they are mistaken or conflating related ideas.

[whyterabbyt]

someone is referring to chatgpt's hallucinated definition of wavestack synthesis (that does not actually appear in curtis roads microsounds as it claims) as proof that frequency block synthesis is not the same as wavestack synthesis. does that mean their proof is invalid?


ChatGPT said:

Yes, their "proof" is invalid if it hinges on a nonexistent definition from Curtis Roads' Microsound as authoritative evidence.

Here’s the logic:
The Citation is False

If someone is using a definition of "wavestack synthesis" that they claim is from Microsound, but that definition does not actually appear in that book, then their argument is built on a false citation — a textbook case of an invalid source.

Misattributing a source invalidates the evidence. It’s like claiming Einstein said something he didn’t and using that to win a physics debate.....

If their claim that frequency block synthesis ≠ wavestack synthesis depends on that hallucinated definition, then:

The logical structure of their proof collapses.

The burden of proof shifts back to them to provide a valid, correctly cited, or clearly defined basis for making the distinction.

[Innovative synthesis]

pp160-163 of the 1st edition

So there we have it, from one of the most authoritive figures in synthesis algorithms for the past 30+ years. There is a specific variant of additive synthesis called wavestacking, which, for example involves mixing 4 to 8 waveforms on a commercial synthesiser, where those 'complicated signals' could be sampled sounds.
FBS is being sold as a set of presets for a commercial synthesiser, which mixes up to 8 waveforms, where those 'complicated signals' are tailored samples.

Clarified and definitely no matching:

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[whyterabbyt]

someone is referring to multiple chatgpt responses as proof that frequency block synthesis is new and novel, by asking for comparison with other synthesis definitions. however many of those chatgpt responses include hallucinated information
should that person continue to rely on chatgpt responses, or is there a significant issue on their reliance on chatgpt as their source of information?

ChatGPT said:

Yes, there is a significant issue with relying on ChatGPT responses as authoritative evidence, especially if those responses include hallucinated or misattributed information.
Here's why this is problematic:
1. ChatGPT is not a primary or peer-reviewed source

ChatGPT generates responses based on patterns in data it's been trained on — including books, articles, and user-generated content — but:

It does not always cite sources accurately

It can hallucinate terms, definitions, or attributions

It is not accountable like a human author or researcher

So using ChatGPT as a primary source in an argument about novelty or technical distinction in synthesis is methodologically weak.
2. Multiple AI-generated responses don’t constitute corroboration

The person may believe that asking ChatGPT the same question multiple times and getting similar answers is like cross-verifying from multiple sources. It's not. Each response is generated independently and can replicate the same hallucination or pattern error. That’s not verification — it’s just repetition.
3. Hallucinated definitions undermine the validity of the conclusions

If their argument for frequency block synthesis being "new and novel" is based on comparisons to other synthesis types that are misrepresented or hallucinated, then the entire foundation of their claim is unstable. Without real definitions or peer-reviewed comparisons, the "novelty" can't be established meaningfully.
What they should do instead:

Look for peer-reviewed papers, white papers, plugin documentation, or sound design literature that define or discuss these synthesis types

Use primary sources from recognized experts (e.g., Curtis Roads, Trevor Wishart, Jean-Claude Risset, or developers like Steve Duda)

If frequency block synthesis is indeed new, they can present it as an original technique — but then the burden is on them to define it clearly and contrast it accurately with existing methods.

TL;DR:

No, they should not rely on ChatGPT responses — especially ones that include hallucinated information — as definitive evidence. That’s a misuse of the tool. For accurate claims about the novelty or nature of synthesis methods, they need real sources, not auto-generated text that may or may not be factually grounded.

[Innovative synthesis]

What else could be close to FBS?

[Gamma-UT]

What else could be close to FBS?

Wavestacking.

[whyterabbyt]

After admitting that it has repeatedly hallucinated an absence of references to wavestack synthesis in The Computer Music Tutorial, ChatGPT finally admits that it is there, and that FBS is a variation of that method.

Apologies for any confusion caused by my earlier responses. Upon further review, I can confirm that Curtis Roads does indeed discuss wavestacking in The Computer Music Tutorial, specifically in the section on Multiple Wavetable Synthesis. This technique involves layering multiple waveforms to create complex timbres, a concept that aligns with the principles of Frequency Block Synthesis (FBS).

In The Computer Music Tutorial, Roads describes wavestacking as a method where several waveforms are combined, each potentially with its own amplitude envelope. This approach allows for the creation of rich, hybrid timbres by layering different waveforms, similar to how FBS segments the frequency spectrum into blocks, each with distinct characteristics.
scribd.com

Comparing Wavestacking and Frequency Block Synthesis

Given this understanding, it's reasonable to consider that Frequency Block Synthesis is a variation or reapplication of the wavestacking concept. Both techniques involve the layering of multiple waveforms or frequency segments to construct complex sounds, emphasizing modularity and control over individual components.

[whyterabbyt]

What else could be close to FBS?

ChatGPT says FBS is a variant of wavestacking, so wavestacking.

[Innovative synthesis]

ChatGPT says FBS is a variant of wavestacking, so wavestacking.

No, it is a different thing. If you check page 162 figure 5.1 you will see the evidence that Curtis Roads talking about a multisound (multisample) appearance-disappearance in a time domain (=wavestacking share the time after hitting a key on the keyboard amongst diffferent samples which are complex ŵaves -meaning they are not differentiated in their spectral features) so this is not a spectral domain synthesis. It's different. What else? Let me thank you helping me in this by the way.

[Gamma-UT]

Figure 5.1, which is on page 160 BTW, does not show wavestacking and is clearly captioned "wavetable crossfading". Figure 5.5 (page 163) does describe wavestacking in a possible implementation.

[whyterabbyt]

ChatGPT says FBS is a variant of wavestacking, so wavestacking.

No, it is a different thing.

So you are saying that an AI can make false statements?

[Innovative synthesis]

So you are saying that an AI can make false statements?

Anyone can make a false statement, moreover a software can too. But it is not proving wavestacking was the same as FBS, or its opposite. FBS is a different method to wavestacking. Again:
(Please take this as it was my table here, even though it is shared with chatgpt:)

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