than i run the playback just from teh screen data
so i can play bitmap data like sorta of bitmap
gramophone (hovever playing bitmaps genarally makes
mostly if not ony some buzzes not much interesting)
fir wrote:
than i run the playback just from teh screen data
so i can play bitmap data like sorta of bitmap
gramophone (hovever playing bitmaps genarally makes
mostly if not ony some buzzes not much interesting)
i mean normal graphical bitmaps sound like buzzes
whan those that are generated from loaded vaw - it is those
who are mess soound like music
so regular imeges give buzes but mess images give music
fir wrote:
fir wrote:
than i run the playback just from teh screen data
so i can play bitmap data like sorta of bitmap
gramophone (hovever playing bitmaps genarally makes
mostly if not ony some buzzes not much interesting)
i mean normal graphical bitmaps sound like buzzes
whan those that are generated from loaded vaw - it is those
who are mess soound like music
so regular imeges give buzes but mess images give music
some things showed imo
1) the vaves seem to be 16 bit signed, so drawing it as a bitmap
not fully works cos -min and +max have nearly the same color on screen
(0x8000 is lowest 0x7fff is max)where 0 sound and -1 sound have quite different colors 0x0000 and 0xffff) - but at least it seems i generati
it right (?)
unsigned short val=amplitude*127*256*sin(t);
i rewritten the code
void buffer_add_sinwave(int len, float amplitude, float hz)
{
for(int i=wave_pos; i<wave_pos+len; i++)
{
if(i>big_ofscreen_buffer_size_x*big_ofscreen_buffer_size_y) continue;
float cycle = 22050.0/hz;
float t = 2*M_PI*fmod(i,cycle)/cycle;
unsigned short val=amplitude*127*256*sin(t);
big_ofscreen_buffer[i] = val;
}
wave_pos+=len;
return;
}
On Tue, 02 Apr 2024 14:29:17 +0200
fir <fir@grunge.pl> wrote:
fir wrote:
fir wrote:
than i run the playback just from teh screen data
so i can play bitmap data like sorta of bitmap
gramophone (hovever playing bitmaps genarally makes
mostly if not ony some buzzes not much interesting)
i mean normal graphical bitmaps sound like buzzes
whan those that are generated from loaded vaw - it is those
who are mess soound like music
so regular imeges give buzes but mess images give music
some things showed imo
1) the vaves seem to be 16 bit signed, so drawing it as a bitmap
not fully works cos -min and +max have nearly the same color on screen
(0x8000 is lowest 0x7fff is max)where 0 sound and -1 sound have quite
different colors 0x0000 and 0xffff) - but at least it seems i generati
it right (?)
unsigned short val=amplitude*127*256*sin(t);
i rewritten the code
void buffer_add_sinwave(int len, float amplitude, float hz)
{
for(int i=wave_pos; i<wave_pos+len; i++)
{
if(i>big_ofscreen_buffer_size_x*big_ofscreen_buffer_size_y)
continue;
Shouldn't this be break ? When i>big_ofscreen_buffer_size_x*big_ofscreen_buffer_size_y , it will remain true for all the other values of i in the loop.
float cycle = 22050.0/hz;
float t = 2*M_PI*fmod(i,cycle)/cycle;
unsigned short val=amplitude*127*256*sin(t);
big_ofscreen_buffer[i] = val;
}
wave_pos+=len;
return;
}
Are big_ofscreen_buffer , big_ofscreen_buffer_size_x , big_ofscreen_buffer_size_y
global variables ?
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