Alvas.Audio 6.5

Alvas.Audio 6.5 is .NET audio library written in C#. The library allows C# and VB.Net developers to create applications that play (including mixed audio data), record, edit and convert sound. Encode and decode Dialogic .vox (adpcm) format data (used in Asterisk PBX).

Major Features:

1. Recorder allows:
   1. record uncompressed audio data (PCM);
   2. record compressed audio data: IMA ADPCM, Microsoft ADPCM, CCITT A-Law, CCITT u-Law, GSM 6.10, MPEG Layer-3 (mp3) and others;
   3. record data to the stream (file stream, memory stream);
   4. pause and resume recording;
   5. get the current sound position;
   6. record data to any recorder installed in the system.
2. Player allows:
   1. play uncompressed audio data (PCM);
   2. play compressed audio data: IMA ADPCM, Microsoft ADPCM, CCITT A-Law, CCITT u-Law, GSM 6.10, MPEG Layer-3 (mp3) and others;
   3. play data from the stream (file stream, memory stream);
   4. play mixed audio data;
   5. pause and resume playing;
   6. get the current sound position;
   7. play data from any player installed in the system.
3. Set up mixer controls:
   1. select source line for recording;
   2. change source line volume for recording;
   3. additional controls adjustment. For example, "Mic Boost";
   4. change master volume for playback;
   5. playback muting.
4. Editing
   1. change the speed of audio data;
   2. change the volume of audio data;
   3. join several pieces of audio in a single;
   4. cut a piece of the audio stream;
   5. insert a piece in the audio stream;
   6. remove a piece of the audio stream;
   7. create audio format from the byte array;
   8. insert and mix audio data into main audio data with specified offset multiple times;
   9. reverse audio wave stream;
   10. split stereo audio stream to two mono streams;
   11. merge two mono audio streams into one stereo.
5. Convert the audio data from one audio format to another.
6. Convert audio wave stream to mp3 stream.
7. Convert Dialogic .vox (adpcm) stream to Mp3 stream.
8. Change Wave stream to MP3 stream. if Wave stream contains MPEG Layer 3 data.
9. Several audio files concatenation.
10. Return the audio stream duration in milliseconds.
11. View the level of the input sound signal.
12. Play, record and convert RAW headerless format (SLINEAR etc) (used in Asterisk PBX).
13. Play and extract audio data from Avi streams.
14. Encode and decode Dialogic .vox (adpcm) format data (used in Asterisk PBX).
15. Convert audio wave stream to mp3 stream
16. Convert Dialogic .vox (adpcm) stream to Mp3 stream
17. Sign library with strong name. Audio library can be added to GAC
18. Does not require dependent files.

Requirements: .Net Framework v1.1 or later (also .Net v3.5)
Recommended: .Net Framework with Visual Studio .Net 2003 or later (also VS.NET 2008)

Enhancements:

New features:

1. RecordPlayer class for recording and playback.
2. WaveReadWriter, Mp3ReadWriter, RawReadWriter and IAudioReadWriter classes to read/write data from/to the audio stream.
3. MergeStereo methods for merging
4. Audio mono into one stereo.
5. Doesnt use unsafe code.