[maxmsp] (off-topic) Sonogram visualisers

Hello,

Besides the very useful realtime sonogram/spectrogram viewer in Max/MSP, I am looking for a (standalone) non-realtime high precision spectrogram visualiser, for either os x or win xp, if possible a freeware. 

Examples -

- Audiosculpt (tried in 2003) : maybe the best sonogram viewer and processor, but quite difficult to buy

- Sonogram Visible Speech (tried five minutes ago on Windows) : it looks quite good, but it's outrageously slow (moreover the spectra is drawn every time you change the slightest parameter) - and the 3DSonogram ("perspectogram") doesn't work ; maye it's better on a Mac or Linux (?)

- of course Scilab can be used for repreasenting such data but if there's something that already works it will save me lots of time ...


Any others ? I am primarily interested in displaying the "image", though processing (non realtime only !) is welcome too.


J