uos

uos (United OpenLib of Sound).

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uos unifies the best open-source audio libraries.

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With uos you can:

. Listen to mp3, ogg, wav, flac,... audio files.

. With 16, 32 or float 32 bit resolution.

. Record all types of input into file.

. Add DSP effects and filters, however many you want and record it.

. Listen to multiple inputs and outputs.

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uos uses the SoundTouch, PortAudio, SndFile and Mpg123 audio libraries.

Included in the package: Examples and binary libraries for Linux 32/64, Windows 32/64, Mac OSX 32.

http://fredvs.github.io/uos/

http://github.com/fredvs/uos/

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uoslib is the Universal Library version of uos unit. That library is accessible for Pascal and all other languages (C, Java, ...)

Included in the package: Examples and binary libraries for Linux 32/64, Windows 32/64, Mac OSX 32.

http://fredvs.github.io/uoslib/

http://github.com/fredvs/uoslib/

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The best way to show how uos works is to look at the examples in uos/uoslib packages. All is included, you only have to compile the demos and run it...

Here some examples how to use uos :

First : add uos in your uses section. (for uoslib add uoslib_h)

Then load libraries:

For uos:

   uos_LoadLib(PortAudioFileName, SndFileFileName, Mpg123FileName, SoundTouchFileName); /// full path of libraries
       

For uoslib:

   uos_LoadLibs(uoslibFilename, PortAudioFileName, SndFileFileName, Mpg123FileName, SoundTouchFileName);) 
             

=> Let's play a sound file...

Create the player :

   uos_CreatePlayer(0); /// you may create how many players you want, from 0 to to what you computer can do...
   uos_AddIntoDevOut(0);   //// Add Output with default parameters     
   uos_AddFromFile(0,'MySong.mp3');    //// Input from audio file 

And lets play it...

  uos_Play(0);                         //// Play the song...

=> Let's play a sound file with some dsp effect (only for uos, in future for uoslib too):

First create the player:

 uos_CreatePlayer(0); /// you may create how many players you want, from 0 to to what you computer can do...
 uos_AddIntoDevOut(0);   //// Add Output with default parameters     
 uos_AddFromFile(0,'MySong.mp3');    //// Input from audio file 
 uos_AddDSPIn(0,1);                  //// Add how many dsp you want
 uos_AddDSPIn(0,2);

And lets play it...

   uos_Play(0);      //// Play the song with DSP effect...

=> Listen to your mic into your loudspeakers (for uoslib too) :

Create the player:

   uos_CreatePlayer(0); /// you may create how many players you want, from 0 to what you computer can do...
   uos_AddIntoDevOut(0) ;   //// Add Output with default parameters     
   uos_AddFromDevIn(0) ;   //// Input from IN Device

And lets play it...

   uos_Play(0);              //// Listen to your mic in your loudspeakers...

=> Now, ear your mic, listen to a mp3, apply some effects and record the mic into wav file at same time:

Create the player:

  uos_CreatePlayer(0); /// you may create how many players you want, from 0 to ...
  uos_AddIntoDevOut(0) ;               //// Output into OUT Device
  uos_AddIntoFile(0,'Myrecord.wav') ;               //// Output into OUT Device
  uos_AddFromDevIn(0) ; ;             //// Input from IN Device
  uos_AddDSPIn(0,1);                 //// Add how many dsp you want
  uos_AddDSPIn(0,2)
  uos_CreatePlayer(1);
  uos_AddFromFile(1,'MySong.mp3')    //// the background audio file
  uos_AddIntoDevOut(1) ;               //// Output into OUT Device;

And lets play it...

  uos_Play(0);                         //// Listen your mic with DSP effects and record it ...
  uos_Play(1);        //// Listen to mp3 together with recording

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Here are the basic uos procedures : Each procedure has his equivalent with arguments for custom parameters...

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   Init Procedures :
   uos_LoadLib; (uos_LoadLibs for uoslib)        //// Load dynamic libraries
   uos_UnLoadLib;

   Output Procedures:
   uos_AddIntoDevOut();         //// Output into OUT Device
   uos_AddIntoFile();           //// Output into Wav File

   Input Procedures:
   uos_AddFromDevIn();          //// Input from IN device
   uos_AddFromFile();           //// Input from Audio File
   uos_InputLength();           //// Lenght of Input in samples
   uos_InputPosition();         //// Get position
   uos_Seek();                  //// Change position

   Player Procedures:   
   uos_Play;                    //// Start playing
   uos_RePlay;                  //// Resume playing after pause
   uos_Stop;                    //// Stop playing and free thread
   uos_Pause;                   //// Pause playing
   
   DSP Procedures :                 
   uos_AddDSPIn()               //// DSP procedure for input
   uos_AddDSPOut()              //// DSP procedure for output
   uos_SetDSPin()               //// Set DSP In
   uos_SetDSPout()              //// Set DSP out
   uos_SetDSPVolumeIn           //// Set Volume
   uos_AddFilterIn              //// Add filer
   uos_AddPlugin               //// Add pluggin

   And much more other procedures/functions (see in uos.pas...)