> If the time interval given amounts to let's say 64 samples, the target value 
> is reached at sample index 63, that is, before the block boundary. To me that 
> seems conceptually wrong.
> 
> i think you mean it should start with 0 and I agree

That is a consequence of a given time interval > 0.

If the given time interval is zero, it should start with 0.
For a time interval equivalent to 1 sample, the output should look like 0 1 1 1 
1 1 1 1 .....

Another way to see it is what happens if vline~ is used to drive tabread*~ .
Of course it should start playing at sample index 0 of the table, not at index 
1.

> 
> In fact, I found it so hard to work with vline~ (and line~) in a predictable 
> and sample-accurate way that i resorted to biquad~ generated ramps in most of 
> my patches.
> 
> how about rpole~ ?

true, it's the same, maybe slightly more efficient.

best, Thomas

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