Gold Wave

A highly rated, professional digital audio editor and fully loaded to do everything from the simplest recording and editing to the most sophisticated audio processing, restoration, enhancements, and conversions.

Features:

Audio Recording

Timer Recording

Level Activated Recording

Non-Destructive Sound Editing

Sound Mixing

Multiple Undo Levels

Audio Effects

Effect Presets

Audio Restoration

Remove Vocals

DirectX Effects

Effect Plug-ins

Batch Processing

Batch Conversions

Command Line

VST Effects

File Merger

File Splitter

CD Reader

iTunes Plus Open/Save/Convert

Extract Audio From Video

File Format Plug-ins

192kHz, 24 Bits Quality 

HTML Manual

Detailed Built-in Help

Download Link : http://goldwave.com/release.php

Platforms : Windows XP,7, Vista8, 8.1 (64 & 32 bit) , Linux
File Size : 7.8MB

mp3PRO

This is a freeware to improve the sound quality of mp3 at lower bit rates, Coding Technologies has developed an enhancement technology that gives back the sound the high frequency components. The technology is called "Spectral Band Replication" (SBR). SBR is a very efficient method to generate the high frequency components of an audio signal.

Combining mp3 with the SBR enhancement technology generates an audio signal with high bandwidth at low bit rates.

mp3PRO, the resulting audio format is composed out of two components, the mp3 part for the low frequencies and the SBR or "PRO" part for the high frequencies. Since the "PRO" part requires only a few kbps, the format could be done in a way that it is still compatible with the original mp3 format. 

Supported Bitrates

mp3PRO technology can support more bit rates than just 64 kbps. At lower bit rates mp3PRO technology is ideal for web casting and Internet radio. At higher bit rates, mp3PRO technology is perfect for high quality audio transmission and storage. The following bit rates are supported by mp3PRO:

Mono: 18, 20, 24, 32, 40, 48, 56 kbps
LC-stereo: 18, 20, 24, 32, 40, 48, 56 kbps
Stereo: 32, 40, 48, 56, 64, 80, 96 kbps

Download link: http://www.mp3prozone.com

File size : 1.1MB

Platforms: Windows (All)