[LAD] Regarding amplifying a PCM frame

[Drip Stone]

Thank you for the reply. Finally I figure out the problem. The code is OK,
but I thought it should be louder. So when I was multiplying t by 2, I could
not hear the difference from my laptop speaker. But after multiplying PCM
data by 20, I heard a significant difference.

Best,
Dripsotne

On Tue, Oct 27, 2009 at 1:44 AM, Jens M Andreasen
<jens.andreasen at comhem.se>wrote:

> On Mon, 2009-10-26 at 17:53 -0700, Drip Stone wrote:
>
> >
> >         I pasted all the code at http://pastebin.com/m7fdf0957.
>
> OK! Aside from the C++ style of declaring iterators, I just made this
> change in (or around) line 126 to raise left channel by 6 dB:
>
> -8<------------------------------------------
>  //left
>        int i;
>        for (i = 0; i < frames; i++ )
>        {
>            float t = 0;
>            int j;
>            if ( left )
>             {
>                t = *((float*)&(fbuffer[pos+i*4]));
>                 t *= 2.0f; // <-- Works like a charm?
> ...
>
> ---------------------------8<---------------------
>
> What was the problem now again?
>
>
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