Excerpts from Pierre's message of 2010-12-04 14:05:24 +0100: > Scalpel is an audio editor for Linux written in Python. It aims at > providing a simple-to-use and easy-to-extend audio editor. Sound > hackers, get started translating your Matlab routines into Python/Numpy > functions! > > Scalpel uses PyGTK for the user interface, Numpy for the internal > processing, ALSA for the audio playing and libsndfile for reading and > writing files. A minimal part of the code is written in Cython for > better performance. > > Scalpel still has some rough edges but is quite usable. Try it now > and be sure to send your feedback. > > Links: > > * Homepage: http://scalpelsound.online.fr > * Source: http://gitorious.org/scalpel > * Pypi: http://pypi.python.org/pypi/scalpel Hi Pierre, I just gave it a brief try, and as it happens ran into a imho major problem. The .wav file I tried to open has just under 1GB. It took Scalpel just a couple of seconds to chew up all memory it could get an heavy swapping commenced (~80% of swap and it didn't stop). It seems to need more memory than the 1GB (~500 memory + ~1.5GB swap). The net result was that my machine wasn't particularly responsive anymore, and even less so was Scalpel. On the (kind of) positive side: Scalpel is in good company. mhwaveedit, snd and rezound failed as well, but without chewing all mem+swap. The former two seemed to do nothing at all and the later presented an incomprehensible error. audacity had no problem opening the file, only painting the waveform took a while. The DAWs I tried had no problem either (Traverso, Qtractor). I know that so little memory is rather unusual, but I'm rather sure the problem 'scales' well, more memory just needs bigger files. _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx http://lists.linuxaudio.org/listinfo/linux-audio-user
