Sorry, I meant better stability, not SNR.
On Tue, Oct 6, 2009 at 12:41 PM, Li Bo liboat@gmail.com wrote:
Hi, Takashi According to our HW test, S/PDIF at 48K sample rate has best SNR, so this limit can make S/PDIF work better.
On Mon, Oct 5, 2009 at 11:14 PM, Takashi Iwai tiwai@suse.de wrote:
At Mon, 5 Oct 2009 22:27:43 +0800, Li Bo wrote:
[ALSA] HDA VIA: Add 48K sample rate limit for S/PDIF streams.
Signed-off-by: Lydia Wang lydiawang@viatech.com.cn
Any reason?
Takashi
Index: sound-2.6/sound/pci/hda/patch_via.c
--- sound-2.6.orig/sound/pci/hda/patch_via.c 2009-10-05 15:11:02.000000000 +0800 +++ sound-2.6/sound/pci/hda/patch_via.c 2009-10-05 15:11:04.000000000 +0800 @@ -1228,6 +1228,7 @@ .substreams = 1, .channels_min = 2, .channels_max = 2,
- .rates = SNDRV_PCM_RATE_48000,
/* NID is set in via_build_pcms */ .ops = { .open = via_dig_playback_pcm_open, @@ -1241,6 +1242,7 @@ .substreams = 1, .channels_min = 2, .channels_max = 2,
- .rates = SNDRV_PCM_RATE_48000,
};
static int via_build_controls(struct hda_codec *codec) @@ -2042,6 +2044,7 @@ .substreams = 1, .channels_min = 2, .channels_max = 2,
- .rates = SNDRV_PCM_RATE_48000,
/* NID is set in via_build_pcms */ .ops = { .open = via_dig_playback_pcm_open, @@ -2657,6 +2660,7 @@ .substreams = 1, .channels_min = 2, .channels_max = 2,
- .rates = SNDRV_PCM_RATE_48000,
/* NID is set in via_build_pcms */ .ops = { .open = via_dig_playback_pcm_open, @@ -3137,6 +3141,7 @@ .substreams = 2, .channels_min = 2, .channels_max = 2,
- .rates = SNDRV_PCM_RATE_48000,
/* NID is set in via_build_pcms */ .ops = { .open = via_dig_playback_pcm_open, @@ -3581,6 +3586,7 @@ .substreams = 2, .channels_min = 2, .channels_max = 2,
- .rates = SNDRV_PCM_RATE_48000,
/* NID is set in via_build_pcms */ .ops = { .open = via_dig_playback_pcm_open,