Constant-Q Transformation questions

Hi. I'm new to constant-q transformation.

I've downloaded the cqt toolbox made by Klapuri in 2010. It's very handy. I got the plot to work too, it's 3-dimensional matrix displaying time:freq:cqt values.

However, now that I want to extract the 2-d matrix of cqt values vs. frequencies at certain timeframe, may I know how do I do it?

Really appreciate anyone who have experience in this.

Answer 1

[Franc]

k:n matrix where n represents time axis is obtained from the CQT.

just take any desired nth frame will do.

[ebrahim]

could you explain more!?