FlexiMusic Generator 

"FlexiMusic Generator" is a music sound generating software product. It produces musical and non-musical special sounds with out using any musical instrument, easily and quickly. All you need is creative thinking about music and sound.
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MavenXP 

A powerful and simple to use audio editor, even beginners can be productive in minutes. Record, edit, and mix sound across 8 tracks and export wav or mp3 files in up to 16 bit 48 KHz audio, all in real time. 7 powerful sound effects + DMO effects.
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BKAudio 

The BKAudio v2.0 class library allows you to visually add sounds to your .NET applications! Per Developer and Source Code Licensing are available. In both cases, there are no runtime royalties or other fees! Updates for the current version are free.
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MP3 Surgeon 2003 

A Visual MP3 editor which allows users to trim, join and split any number of MP3s to varying lengths and sizes, apply fade in/out effects, normalise their entire collection to the same volume level - and much much more besides.
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Wav Mp3 Editor 

Wave MP3 Editor is a complete audio editor / recorder with the ability to convert between MP3s and WAV files. Wave MP3 Editor makes editing audio files as easy as editing text with its clear user interface and powerful effects.
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Virtins Sound Card Instrument 

It consists of a sound card real time oscilloscope, a sound card real time spectrum analyzer and a sound card signal generator, and can run them simultaneously. It supports sophisticated triggering method including pre-trigger and post-trigger.
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