change audio volume downloads
4Media Video Joiner for Mac
2.0.1.0314 download... size and quality freely. Moreover, a batch of audio and video parameters are adjustable to personalize the output effect, like Bitrate, Frame Rate, Zoom, Ratio, Volume and so on. 7.English, German, Spanish, Italian, French, ...
ClipBoard Speaker
1.0 download... and Import file (append) to add it back. Change Voice Name, Voice Rate (speed), and Voice Volume. Advanced feature: Add SSML Markup to alter the ... to: a Single plain text file, a Single Audio (wav/mp3 for now) file. Use Global Keyboard Shortcuts ...