diff -r 4816d766a08a -r f345bda72bc4 Symbian3/PDK/Source/GUID-1499E635-B6E3-51A0-AE38-ADF99FF86CD6.dita --- a/Symbian3/PDK/Source/GUID-1499E635-B6E3-51A0-AE38-ADF99FF86CD6.dita Tue Mar 30 11:42:04 2010 +0100 +++ b/Symbian3/PDK/Source/GUID-1499E635-B6E3-51A0-AE38-ADF99FF86CD6.dita Tue Mar 30 11:56:28 2010 +0100 @@ -1,59 +1,59 @@ - - - - - -Sound -Driver LDD OverviewDescribes the sound driver LDD part of the sound driver framework. -
Purpose

The sound driver provides the conduit by -which Symbian platform can access the audio hardware and hence create sounds: -for example multi-media applications and ring tones.

-
Required background

Since audio hardware is rather -complex, the reader of this document needs to know what is meant by:

    -
  • Audio channels

  • -
  • Codec

  • -
-
Key concepts and terms
- -
Codec
-

Stands for COmpressor-DECompressor and refers to the algorithm used -to compress and decompress the audio data stream.

-
-
-
Architecture

The LDD for the sound driver sits -below the RBusLogicalChannel and the RSoundSc classes.

The -communication between the driver and the application on the user-side is handled -by class RSoundSc.

-
APIs - - - -API -Description - - - - -

DSoundScLdd

-

Defines each logical channel. One instance of this class is created -for each driver channel opened.

-
- - -
-
Typical uses

The sound driver is used whenever -audio operations are required: for example MP3 player, having a phone call -and ring tones.

    -
  • MP3 player

  • -
  • Multi-media

  • -
-
-Sound Driver -Technology + + + + + +Sound +Driver LDD OverviewDescribes the sound driver LDD part of the sound driver framework. +
Purpose

The sound driver provides the conduit by +which Symbian platform can access the audio hardware and hence create sounds: +for example multi-media applications and ring tones.

+
Required background

Since audio hardware is rather +complex, the reader of this document needs to know what is meant by:

    +
  • Audio channels

  • +
  • Codec

  • +
+
Key concepts and terms
+ +
Codec
+

Stands for COmpressor-DECompressor and refers to the algorithm used +to compress and decompress the audio data stream.

+
+
+
Architecture

The LDD for the sound driver sits +below the RBusLogicalChannel and the RSoundSc classes.

The +communication between the driver and the application on the user-side is handled +by class RSoundSc.

+
APIs + + + +API +Description + + + + +

DSoundScLdd

+

Defines each logical channel. One instance of this class is created +for each driver channel opened.

+
+ + +
+
Typical uses

The sound driver is used whenever +audio operations are required: for example MP3 player, having a phone call +and ring tones.

    +
  • MP3 player

  • +
  • Multi-media

  • +
+
+Sound Driver +Technology
\ No newline at end of file