I am looking for a Software from which I can Extract the Sound Waves to be used in a Graphic Software. It is basically for gifting to someone. Can someone guide me in right direction? A command line tool should also be just fine.
The FFmpeg showwavespic filter can produce an image of the waveform of an audio input and has a few parameters to customize the output.
Here's an example invocation (from the above link) :
ffmpeg -i audio.flac -lavfi showwavespic=split_channels=1:s=1024x800 waveform.png
More examples and documentation: https://trac.ffmpeg.org/wiki/Waveform