Hi ! I use sndfile-spectrogram. It's great http://www.mega-nerd.com/libsndfile/tools/ Niels Mayer wrote: > > Are there any command-line tools to take a sound file (e.g. wav or mp3 > format) and output a corresponding audio-range spectrogram > as one or more image files, either jpg,gif,png ?? Yes, it would be a very > "long" image, or a series multiple images, each w/ a minute of spectrogram > representation of sound. > > Preferable would be something like what > http://www.sonicvisualiser.org/ outputs > in "Layer->Add Melodic Range Spectrogram-> All Channels Mixed" > > I'm aware of exellent tools like http://vamp-plugins.org/ && could > certainly > script something out of sonic-annotator, which would be too slow (the > scripting and unnecessary I/O would be slow, not sonic-annotator itself). > > Anybody have a http://vamp-plugins.org/vampy.html script that accomplishes > this task before I go off and reinvent the wheel. Or better yet, an all-C > or > C++ solution? > > One issue is how can a program automatically determine the best > visualization of a spectrogram? > Sonic-visualizer has controls like "Threshold" "Colour Rotation" and meter > "Gain" that sometimes need to be tweaked. Anybody > know where to find such a file->spectrum-image converter that > automatically > adjusts for best contrast between beats, bass, melody, > so as to produce something that lets people easily visualize music > features, > without needing to do any manual adjustments?? > > > Thanks, > > Niels > http://nielsmayer.com > > PS: speaking of spectrograms: > Music: Broken Symmetry, Geometry, and Complexity > by Gary W. Don, Karyn K. Muir, Gordon B. Volk, James S. Walker > Notices of the American Math Society, Jan 2010, Vol 57, Num.1 , pp. 30-49. > http://www.ams.org/notices/201001/rtx100100030p.pdf > http://www.uwec.edu/walkerjs/MBSGC/ > > _______________________________________________ > Linux-audio-user mailing list > Linux-audio-user@xxxxxxxxxxxxxxxxxxxx > http://lists.linuxaudio.org/listinfo/linux-audio-user > > ----- http://www.myspace.com/algodonciego -- View this message in context: http://old.nabble.com/looking-for-fast-spectrogram--%3E-jpg-png-gif-tp28361237p28375955.html Sent from the linux-audio-user mailing list archive at Nabble.com. _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx http://lists.linuxaudio.org/listinfo/linux-audio-user
