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On 04/01/16 19:37, Lawrence Rust wrote:<br>
<blockquote cite="mid:568727A7.7050509@yahoo.com.au" type="cite">
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Rob,<br>
<br>
Many thanks for running these tests and the test clips. However,<br>
looking at the logs I can't see anything that indicates an OpenMAX<br>
problem or gives any indication why you hear no sound in PCM mode.<br>
<br>
I tried playing all 3 clips on my RPi and I hear stereo sound from
my<br>
HDMI monitor when I select the OpenMAX:hdmi output and select
stereo<br>
speakers. The sound becomes 'choppy' if I select 5.1 or 7.1
speakers -<br>
that would be expected.<br>
<br>
There's nothing but static when I enable AC3 or DTS, but that's
expected<br>
as my monitor only accepts PCM and from your report that's when
your<br>
receiver plays sound, so digital pass through is working.<br>
<br>
I'm at a loss to explain why you can't play PCM sound to your HDMI<br>
connected receiver. There must be a configuration issue. Maybe
you<br>
have to tell your receiver manually when it's in PCM mode?<br>
<br>
Is the problem to do with /boot/config.txt? I have this:<br>
<br>
# 1920x1080 @ 50Hz 16:9, clock:148MHz progressive<br>
disable_overscan=1<br>
hdmi_group=1 # CEA mode<br>
hdmi_mode=31<br>
hdmi_drive=2<br>
gpu_mem=256<br>
<br>
Apart from the MPEG license, I have no other settings in
config.txt.<br>
<br>
Thanks for the ALSA config info. All I need to do now is convince
the<br>
family that I should move the TV sound system into the office so
that I<br>
can check digital sound with the RPi !!<br>
<br>
-- Lawrence Rust<br>
<br>
</blockquote>
hi Lawrence,<br>
I played around some more and manage to hear some sound. So now I
have Stereo, AC3 and DTS sound<br>
<br>
Changes -<br>
- To Enable Sound generally<br>
Go to Settings / Audio and on the first screen<br>
Set Output Device = OpenMax:HDMI<br>
Check Dolby Digital and DTS<br>
Set Speaker Configuration = 5.1<br>
Set Upmix Quality = Passive (this is key)<br>
On the second screen (Audio Mixer), <br>
Check Use Internal Volume Controls<br>
Set Mixer Device = "OpenMax:" and Mixer Controls = "PCM"<br>
- To enable Music<br>
Go to Setup / Media Settings / Music Tools / Music Settings /
General Settings<br>
Set Audio Device to "default"<br>
<br>
So now I have 5.1 and stereo sound as appropriate via OpenMax<br>
<br>
Note that I started by testing with Alsa ... which worked fine ...
IFF ALSA:iec958 was selected, (using HDMI etc resulted in EITHER ac3
/ dts or stereo, but not both)<br>
<br>
Thanks again for all the great work. It looks as though i just
needed a few config changes to make it work<br>
In retrospect the "Upmix Quality = Passive" setting should have been
obvious, but the Volume Control was unexpected<br>
<br>
THANKS AGAIN FOR ALL YOUR GREAT WORK<br>
<br>
If there's anything I can help with please feel free to ask ....<br>
<br>
Rob<br>
<br>
<br>
fwiw my config.txt is minimally customised as follows ...<br>
## ----------------------- RE Added ------------------------- ##<br>
gpu_mem=256<br>
decode_MPG2=0x<br>
decode_WVC1=0x<br>
#<br>
config_hdmi_boost=4 # Need this to boost output - otherwise just a
blank screen<br>
hdmi_edid_file=1<br>
hdmi_force_hotplug=1<br>
hdmi_edid_file=1<br>
#<br>
## ----------------------- RE Added ------------------------- ##<br>
<br>
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