Re: [Matplotlib-users] Is there an easy way to plot a log-frequency spectrogram?

2010-04-19 Thread David Ho
Just as an illustration, I'm looking for a nice way to plot something like this: http://labrosa.ee.columbia.edu/matlab/sgram/ I don't necessarily need a weighting matrix to convert the Pxx array, which is what Dan Ellis' code does; I just need to visualize the spectrogram on a logarithmic axis.

Re: [Matplotlib-users] Is there an easy way to plot a log-frequency spectrogram?

2010-04-19 Thread Eric Firing
David Ho wrote: Just as an illustration, I'm looking for a nice way to plot something like this: http://labrosa.ee.columbia.edu/matlab/sgram/ I don't necessarily need a weighting matrix to convert the Pxx array, which is what Dan Ellis' code does; I just need to visualize the

Re: [Matplotlib-users] Is there an easy way to plot a log-frequency spectrogram?

2010-04-19 Thread Friedrich Romstedt
2010/4/19 Eric Firing efir...@hawaii.edu: David Ho wrote: Just as an illustration, I'm looking for a nice way to plot something like this: http://labrosa.ee.columbia.edu/matlab/sgram/ I don't necessarily need a weighting matrix to convert the Pxx array, which is what Dan Ellis' code does; I

Re: [Matplotlib-users] Is there an easy way to plot a log-frequency spectrogram?

2010-04-19 Thread Eric Firing
Friedrich Romstedt wrote: 2010/4/19 Eric Firing efir...@hawaii.edu: David Ho wrote: Just as an illustration, I'm looking for a nice way to plot something like this: http://labrosa.ee.columbia.edu/matlab/sgram/ I don't necessarily need a weighting matrix to convert the Pxx array, which is

[Matplotlib-users] Is there an easy way to plot a log-frequency spectrogram?

2010-04-15 Thread David Ho
Hi all! I have a quick newbie question. matplotlib's specgram() by default plots a spectrogram with a linear y-axis (frequency). However, for many applications, it's better to look at a log-frequency spectrogram. Is there an easy way to plot a spectrogram using a logarithmic frequency axis?