component or code for wave analyzer

Question

I am searching for a component to:

• analyzing and comparing sound data
• drawing the sound histogram.

Are there any guides or other suggestions on how to accomplish this?

Answer 1

You can check out the wavesurfer program:

WaveSurfer is an Open Source tool for sound visualization and manipulation. It has been designed to suit both novice and advanced users. WaveSurfer has a simple and logical user interface that provides functionality in an intuitive way and which can be adapted to different tasks. It can be used as a stand-alone tool for a wide range of tasks in speech research and education. Typical applications are speech/sound analysis and sound annotation/transcription. WaveSurfer can also serve as a platform for more advanced/specialized applications. This is accomplished either through extending the WaveSurfer application with new custom plug-ins or by embedding WaveSurfer visualization components in other applications.

It can perform many different types of analysis, I have only used it for practicing Chinese tone pronunciation.