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# Improved email notifications for vuo.org posts

We've improved vuo.org to make it easier to follow discussions and give you control over your email notifications.

You can now choose to follow a specific post, all posts in a section of the site (such as the Composition Gallery), or all posts by a specific user. Following means you get an email whenever someone makes a new post or comment. You can also unfollow posts. To learn how, see the FAQ How can I get notifications of posts on the Vuo website?

Helpful descriptions, thanks. The part about "when the frequency scale of the graph is logarithmic" leads me to believe that the "accumulation modes" are similar to the `Calculate Amplitude for Frequencies` node's Frequency Bin Averaging options.

Philip, agreed. As part of this feature request, we'll plan to add a right-click menu item to collapse/uncollapse a type-converter node.

Jaymie commented on Kewl's Discussion, “Calculate Node: clamp to one bound?

Instead of the two-sided limit with `clamp`, you could do a one-sided limit with `min` or `max` — for example `min(value, highLimit)`.

The values scaling is different: is it now between 0 and 1?

Yes, assuming the input audio samples are between -1 and 1, the output amplitudes are between 0 and 1.

But the frequency bias has also changed: before, it was "pink is flat" (equal energy per octave), now it's "white is flat" (equal energy per frequency interval).

When Frequency Bin Averaging is None, isn't "white is flat" always the correct behavior? My understanding of white noise vs. pink noise is that white noise should (ideally / on average) have an equal amplitude for every frequency bin, and pink noise should have decreasing amplitudes as the frequency increases.

If you do want to go back to the old behavior, you can still use the old version of the node. In Vuo 1.2.3 and earlier, the Node Library lists `vuo.audio.analyze.fft`. In Vuo 1.2.4 and later, it lists `vuo.audio.analyze.fft2`, but `vuo.audio.analyze.fft` is still installed. If you create a composition in Vuo 1.2.3 containing `vuo.audio.analyze.fft` (the deprecated node) and open the composition in Vuo 1.2.4 or later, it will still contain the `vuo.audio.analyze.fft` node with the old behavior.

Or you can paste the old node directly from Vuo 1.2.3 to Vuo 1.2.4. Or just paste the following text onto the canvas:

``````digraph G
{
CalculateAmplitudeForFrequencies [type="vuo.audio.analyze.fft" version="1.0.0" label="Calculate Amplitude for Frequencies|<refresh>refresh\l|<samples>samples\l|<frequencyBins>frequencyBins\l|<frequencyBinAveraging>frequencyBinAveraging\l|<amplitudes>amplitudes\r" pos="459,67" _frequencyBins="\"255\"" _frequencyBinAveraging="\"quadratic\""];
}
``````