I've got a problem setting up my surround sound. At this point I'm even doubting it be possible anyway. Perhaps you can get me in the right direction.
What I have:
- RPi 2 B with Raspbian (2015-02-16-raspbian-wheezy) with no additional hardware of any kind attached.
- Connection over HDMI to a 5.1 receiver for test, later 7.1 for production, both with not necessarily a TV connected to said receiver.
What I want:
- Being able to use 5.1 (or 7.1) surround preferably using just ALSA, not PulseAudio or consorts, over HDMI
- I want to play sounds using BASS and MONO for a dynamic sound-show in a (non-profit) museum. With BASS I can play samples to a specific channel, therefore my RPi needs to report them first. Which also means just PCM, no DTS/Dolby, though i'm not sure me saying this makes any sense. (I have the software ready, works like a charm on a Windows machine but I need it to be more embedded
)The problem:
At this moment using "speakertest -c 6" only plays on left and right (so stereo) channels. "alsamixer" is only reporting a single PCM channel.
What I did so far:
Besides breaking my head, installing PulseAudio, being more puzzled after that and purged it, "reinstalling" Raspbian multiple times to get fresh start.
I already set this in the /boot/config.txt:
Code: Select all
hdmi_drive=2
hdmi_force_edid_audio=1
"aplay -l" output:
Code: Select all
**** List of PLAYBACK Hardware Devices ****
card 0: ALSA [bcm2835 ALSA], device 0: bcm2835 ALSA [bcm2835 ALSA]
Subdevices: 8/8
Subdevice #0: subdevice #0
Subdevice #1: subdevice #1
Subdevice #2: subdevice #2
Subdevice #3: subdevice #3
Subdevice #4: subdevice #4
Subdevice #5: subdevice #5
Subdevice #6: subdevice #6
Subdevice #7: subdevice #7
card 0: ALSA [bcm2835 ALSA], device 1: bcm2835 ALSA [bcm2835 IEC958/HDMI]
Subdevices: 1/1
Subdevice #0: subdevice #0
Would be really grateful I you guys can help me out or point me in the right direction!
Kind regards, nibbo