I have Slackware-Current (09/2014) on an I3 based Samsung NP350 with Panther Point chipset. Alsa is installed & configured for sound, although pulseaudio is installed (but not used) because I needed it for some compile and it seems like a major PITA to configure.
lspci & aplay-l are as follows
Code:
00:1b.0 Audio device: Intel Corporation 7 Series/C210 Series Chipset Family High Definition Audio Controller (rev 04)
bash-4.3$ aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: PCH [HDA Intel PCH], device 0: ALC269VC Analog [ALC269VC Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 3: HDMI 0 [HDMI 0]
Subdevices: 1/1
Subdevice #0: subdevice #0
Sound defaults to the speakers/earphone. As aplay shows, it's all card0, device 0 is speakers/earphone, device 3 is hdmi. My first attempt at this was simply use an ~/.asoundrc which made device 3 the default. HDMI was too loud and distorted horribly.
Second attempt was the enclosed ~/.asoundrc,
Code:
pcm.hdmi_hw {
type hw
card 0
device 3
}
ctl.!hdmi_hw {
type hw
card 0
device 3
}
pcm.!default {
type plug
slave.pcm "softvol"
}
pcm.softvol {
type softvol
slave {
pcm "dmix"
}
control {
name "Pre-Amp"
card 0
}
min_dB -20.0
max_dB 0.0
resolution 11
}
which google found for me and gives me a hdmi volume control in alsamixer, but still has the distortion. Here is a sample
https://onedrive.live.com/?cid=99361...4096FF2C07!208
You want the file: Voice\ 010.m4a
Sorry about the weird file type - it was recorded on a phone. mplayer handles it without issue.
Any ideas here? The sample has a low backing music and commentary. The sound reminds me of an over driven device - probably an input. I can get it down to reasonable levels at the output, but that's not good enough, it seems.
EDIT: Just noticed that muting the S/PDIF in alsamixer kills the sound in hdmi. If I could CONTROL that, then I might get somewhere. But alsamixer shows no control for that. Just some little mute box.