Precise Control Points?

[dgpretzel]

When I drag control points to set my envelope, I always get a little movement in both horizontal and vertical directions. Is there a way I can PRECISELY move horizontally, so I can position exactly. For instance I would like to set a label at the exact time point that I want a control point to be (without affecting gain). Then, is there a way to set the envelope gain exactly? For instance, I would like to set the gain at the left control point to be 0 DB, and the right to be -3DB, without affecting the time position.

Thank you.

Regards,

DG

[steve]

Control points are a bit fiddly, but you can get better accuracy for amplitude by resizing the track taller (click and drag the bottom edge of the track), and better time accuracy by zooming in (see: http://manual.audacityteam.org/man/zooming.html)

[dgpretzel]

Thank you for your amazingly quick response.

So, I think I understand you to be saying that I just have to be very, very careful, and use zooming and resizing to achieve control point precision. In other words, there isn't any mechanism to make very fine, quantitative adjustments ONLY the time position, or ONLY the amplitude position of a control point. And I can't type in (or use arrow keys to specify) a precise, absolute numeric value for either one (either time or amplitude). Do I understand correctly?

Thank you.

Regards,

DG

[steve]

Yes with careful zooming you should be able to achieve better than 0.01s time accuracy and better than 0.01dB amplitude accuracy.
No there is not yet a text or numeric input method.

firsttrack002.png (19.05 KiB) Viewed 1565 times

[Gale Andrews]

In other words, there isn't any mechanism to make very fine, quantitative adjustments ONLY the time position, or ONLY the amplitude position of a control point. And I can't type in (or use arrow keys to specify) a precise, absolute numeric value for either one (either time or amplitude).

Those are "feature requests". Moved to that board.

As far as I know it ought to be possible to implement modifier keys that only allow the control point to move in one axis.


Gale

[dgpretzel]

Thank you Steve for the example, and Gale, for the assist with post management.

Regards,

DG

[dgpretzel]

Permit me to expand, just a little.

It would be convenient to be able to add control points at label points. For example, set labels to define exactly a segment of interest. Then, be able to add control points at those exact times. Then, be able to adjust amplitude, precisely, and without affecting the temporal location.

DG