High Pitched Audio Playback over HDMI

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High Pitched Audio Playback over HDMI

Postby dbxt on Mon Jan 13, 2014 7:24 am

Linux newbie and loving my Mint Petra experience so far with a few minor issues. The most curious is the audio playback through HDMI. When I use the laptop speakers, the sound is normal. When I switch to HDMI audio, this playback is high pitched and everything sounds as it would if you sped up the audio, like chipmunks. The odd part is that the audio seems to stay in time with the video, just a higher than normal pitch. I've tried this with video on Youtube, VLC, Banshee and the default video player with the same results. Audio does the same.

I decided to give MINT a shot as my primary OS a few days ago. Wiped my laptop and installed from ISO. Applied the updates from the update manager and the only third party software I've had a chance to install is Virtualbox and Chromium.

PC: ASUS N550JV
OS: Linux Mint 16 x64

$ cat /proc/asound/cards
Code: Select all
 0 [MID            ]: HDA-Intel - HDA Intel MID
                      HDA Intel MID at 0xf7a14000 irq 49
 1 [PCH            ]: HDA-Intel - HDA Intel PCH
                      HDA Intel PCH at 0xf7a10000 irq 50


$ aplay -L
Code: Select all
default
    Playback/recording through the PulseAudio sound server
hdmi:CARD=MID,DEV=0
    HDA Intel MID, HDMI 0
    HDMI Audio Output
hdmi:CARD=MID,DEV=1
    HDA Intel MID, HDMI 1
    HDMI Audio Output
hdmi:CARD=MID,DEV=2
    HDA Intel MID, HDMI 2
    HDMI Audio Output
dmix:CARD=MID,DEV=3
    HDA Intel MID, HDMI 0
    Direct sample mixing device
dmix:CARD=MID,DEV=7
    HDA Intel MID, HDMI 1
    Direct sample mixing device
dmix:CARD=MID,DEV=8
    HDA Intel MID, HDMI 2
    Direct sample mixing device
dsnoop:CARD=MID,DEV=3
    HDA Intel MID, HDMI 0
    Direct sample snooping device
dsnoop:CARD=MID,DEV=7
    HDA Intel MID, HDMI 1
    Direct sample snooping device
dsnoop:CARD=MID,DEV=8
    HDA Intel MID, HDMI 2
    Direct sample snooping device
hw:CARD=MID,DEV=3
    HDA Intel MID, HDMI 0
    Direct hardware device without any conversions
hw:CARD=MID,DEV=7
    HDA Intel MID, HDMI 1
    Direct hardware device without any conversions
hw:CARD=MID,DEV=8
    HDA Intel MID, HDMI 2
    Direct hardware device without any conversions
plughw:CARD=MID,DEV=3
    HDA Intel MID, HDMI 0
    Hardware device with all software conversions
plughw:CARD=MID,DEV=7
    HDA Intel MID, HDMI 1
    Hardware device with all software conversions
plughw:CARD=MID,DEV=8
    HDA Intel MID, HDMI 2
    Hardware device with all software conversions
sysdefault:CARD=PCH
    HDA Intel PCH, ALC668 Analog
    Default Audio Device
front:CARD=PCH,DEV=0
    HDA Intel PCH, ALC668 Analog
    Front speakers
surround40:CARD=PCH,DEV=0
    HDA Intel PCH, ALC668 Analog
    4.0 Surround output to Front and Rear speakers
surround41:CARD=PCH,DEV=0
    HDA Intel PCH, ALC668 Analog
    4.1 Surround output to Front, Rear and Subwoofer speakers
surround50:CARD=PCH,DEV=0
    HDA Intel PCH, ALC668 Analog
    5.0 Surround output to Front, Center and Rear speakers
surround51:CARD=PCH,DEV=0
    HDA Intel PCH, ALC668 Analog
    5.1 Surround output to Front, Center, Rear and Subwoofer speakers
surround71:CARD=PCH,DEV=0
    HDA Intel PCH, ALC668 Analog
    7.1 Surround output to Front, Center, Side, Rear and Woofer speakers
dmix:CARD=PCH,DEV=0
    HDA Intel PCH, ALC668 Analog
    Direct sample mixing device
dsnoop:CARD=PCH,DEV=0
    HDA Intel PCH, ALC668 Analog
    Direct sample snooping device
hw:CARD=PCH,DEV=0
    HDA Intel PCH, ALC668 Analog
    Direct hardware device without any conversions
plughw:CARD=PCH,DEV=0
    HDA Intel PCH, ALC668 Analog
    Hardware device with all software conversions


It's the damnedest thing. The audio plays fine... just high pitched. Would love to get this working so I can watch videos on my large screen rather than the laptop. Any help is appreciated.
Attachments
Screenshot_hdmi.png
dbxt
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