WaveShop is a open source audio for windows that allows user to edit audio with amplification,channel insertion, audio modulation speaker and other modification features. its main advantage is that it allows patching of sound file segments, without affecting the rest of the file. Allows you to edit a portion of an audio file to only affect that portion. This is especially useful for patching a finished master without corrupting its dither. WaveShop can normalize, amplify, fade in/out/custom channels independently, modify audio format and generate peak RMS statistics.source
Download free WaveShop for Windows. WaveShop file size 3.2MB.