Thread: problem with sound device

hi
my querry is..

Ex: i have a mobile... in that am listening the songs... at that time an incoming call is coming..
i want to lift the call with out quitting or without muting the songs player..
at the same time i have listen the music ang voice of the caller...
it is just an example.

is it possible...?
how?

please help me thank you in advance

Anything is possible. Do you honestly expect an answer that is anything more detailed than this answer, given how completely vague you were?

Originally Posted by munna_dude

is it possible...?

YES

how?

by rewriting the firmware of the phone.

Depends on the “mobile”. I am not sure of the hardware of your “mobile” but a wav file or mp3 can have multiple channels. A standard 8 bit riff.

Code:

<fmt-ck> ->   fmt( <common-fields> <format-specific-fields> )

<common-fields> ->
	struct
	{
		WORD wFormatTag;         // Format category
		WORD wChannels;          // Number of channels
		DWORDdwSamplesPerSec;    // Sampling rate
		DWORDdwAvgBytesPerSec;   // For buffer estimation
		WORD wBlockAlign;        // Data block size
	}

Code:

 channels       1         2
             _________ _________ 
            | left    | right   |
  stereo    |         |         |
            |_________|_________|


                 1         2         3
             _________ _________ _________ 
            | left    | right   | center  |
  3 channel |         |         |         |
            |_________|_________|_________|

                 1         2         3         4
             _________ _________ _________ _________ 
            | front   | front   | rear    | rear    |
  quad      | left    | right   | left    | right   |
            |_________|_________|_________|_________|

                 1         2         3         4
             _________ _________ _________ _________ 
            | left    | center  | right   | surround|
  4 channel |         |         |         |         |
            |_________|_________|_________|_________|

                 1         2         3         4         5         6
             _________ _________ _________ _________ _________ _________
            | left    | left    | center  | right   | right   |surround |
  6 channel | center  |         |         | center  |         |         |
            |_________|_________|_________|_________|_________|_________|

by using different number of channels you can separate the audio. But that requires more speakers.

What do you mean by “lift”? You can deal with each channel as needed.