At Wed, 8 Jul 2009 23:57:46 -0700, Paul Vojta wrote:
In the beep tone calculation for IDT/STAC codecs, lower numbers correspond to higher frequencies and vice versa. The current code has this backwards, resulting in beep frequencies which are way too high (and sound bad on tinny laptop speakers, resulting in complaints).
Signed-off-by: Paul Vojta vojta@math.berkeley.edu
Thanks, applied now (with a minor modification).
Takashi
diff --git a/sound/pci/hda/hda_beep.c b/sound/pci/hda/hda_beep.c index 08fe659..d559a7a 100644 --- a/sound/pci/hda/hda_beep.c +++ b/sound/pci/hda/hda_beep.c @@ -51,19 +51,20 @@ static void snd_hda_generate_beep(struct work_struct *work)
- The tone frequency of beep generator on IDT/STAC codecs is
- defined from the 8bit tone parameter, in Hz,
- freq = 48000 * (257 - tone) / 1024
- that is from 12kHz to 93.75kHz in step of 46.875 hz
*/
- that is from 12kHz to 93.75Hz in steps of 46.875 Hz
static int beep_linear_tone(struct hda_beep *beep, int hz) { hz *= 1000; /* fixed point */
- hz = hz - DIGBEEP_HZ_MIN;
- hz = hz - DIGBEEP_HZ_MIN
+ DIGBEEP_HZ_STEP / 2; /* round to nearest step */
hz = 0xff;
hz = 1; /* max frequency */
hz++;
hz = 255 - hz;} _______________________________________________ Alsa-devel mailing list Alsa-devel@alsa-project.org http://mailman.alsa-project.org/mailman/listinfo/alsa-devel