Free audio encoder software for windows

True Audio Encoder (TTA) - simple lossless audio codec which shows same or better results in comparing to majority of modern analogs.
Being "lossless" means that no data/quality is lost in the compression - when uncompressed, the data will be identical to the original.
The compression ratios of True Audio encoder depend on the type of music file being compressed, but the compression size will generally range between 30% - 70% of the original. TTA format supports both of ID3v2 and ID3v1 information tags.
Using True Audio encoder you can to store up to 20 audio CD from your collection on one single DVD-R for playback, keeping all of CD information in a popular ID3 information tags.
Main features:
- Support of 8,16,24 integer and 32-bit floating-point multichannel Wav audio files;
- Minimal system requirements;
- High compression performance;
- High speed performance;
- CRC checking;
- Corrupted data decoding;
- Simple and clean output files format with precalculated seek points table.
- Down to 30% lossless audio data compression
- Real-time encoding/decoding algorithm
- Fast operation speed and minimal system requirements
- Can be compiled and executed on several different platforms
- Free and open source code and documentation

Elecard MPEG Layer III Audio Encoder provides software-only MPEG Layer III audio encoding solutions. It is implemented as a Microsoft DirectShow filter and could be easily incorporated into your capture and network streaming applications.
This a development release, it can crash without warning, has memory leaks and can spoil your display (with movies you never wanted to see), and many things more - but it will not work as expected.
The code uses LAME 3.88beta MPEG Layer III encoding engine.
Main features:
- DirectShowR interface
- Property pages
- Open Source (GNU GPL)

MP3 Encoder will convert WAV files to MP3 very fast. This encoder use the LAME-ENCODER.
MP3 Encoder is a very small application that allows you to encode and transform your audio WAV files into MP3 files.
You have various options for the output file:
- sample rate (44100, 32000, 22050)
- bit rate (320, 256,192, 160, 128, 96)
- max rate (320, 256, 192, 160)
- mode (stereo, joint stereo, dual channel, mono)
- quality (normal, high, low, voice)

Riva FLV Encoder enables you to encode video files to Flash video (.FLV) files.
It currently supports the most common video formats, including avi, dv, mpeg, mov, wmv and includes a player to preview the converted .FLV file.
The program supports custom output settings and allows you to save your configuration as profile for easy access. Transode your existing videofiles to the advanced FLV format with this free Riva FLV Encoder.
And now with deinterlace, image extraction and additional codecs. To view the result Riva FLV Encoder comes with the free Riva FLV Player.
Transcode your existing videofiles to the advanced Flash Video (FLV) format with Riva FLV Encoder.
Main features:
- custom settings for audio- and video-encoding
- deinterlace
- image extraction
- FLV 1.1 (metadata)
- Custom colored borders (Padding)
- Crop parts of the video
- Cutting with a startoffset and a encode duration
- Drag-n-drop of video files directly on the encoder
- Audio parameter check
- language: english, french and german