SB_DSP_CAPTURE_FILT
mixreg = snd_sbmixer_read(chip, SB_DSP_CAPTURE_FILT);
snd_sbmixer_write(chip, SB_DSP_CAPTURE_FILT, mixreg | 0x20);
snd_sbmixer_write(chip, SB_DSP_CAPTURE_FILT, chip->force_mode16);
SB_SINGLE("Capture Filter", SB_DSP_CAPTURE_FILT, 5, 1),
SB_SINGLE("Capture Low-Pass Filter", SB_DSP_CAPTURE_FILT, 3, 1)
SB_DSP_CAPTURE_FILT,