Mailing List Archive: MythTV: Dev

Re: Ticket #1104: multi channel audio support

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paul at paulcatchpole

Dec 9, 2007, 5:33 AM

Post #1 of 6 (955 views)
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Re: Ticket #1104: multi channel audio support

paul at paulcatchpole

Dec 9, 2007, 8:24 AM

Post #2 of 6 (900 views)
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Re: Ticket #1104: multi channel audio support [In reply to]

MythTV wrote:
> #1104: multi channel audio support
> -------------------------+--------------------------------------------------
> Reporter: Mark Spieth | Owner: ijr
> Type: enhancement | Status: new
> Priority: minor | Milestone: 0.21
> Component: mythtv | Version: head
> Severity: medium | Resolution:
> Mlocked: 0 |
> -------------------------+--------------------------------------------------
>
> Comment(by anonymous):
>
> I am using markspieth's .asoundrc file, and it is working great.
>
> But I have two problems:
>
> 1. Sound in MythMusic "crackles" a little bit. Changing volume does not
> help.
>
> 2. If the volume of PCM (I have no Master) is on 0 (zero), I can still
> hear some sound on the speakers. Sound is gone only if I mute it directly
> in alsamixer. MythTv's muting does not actually mute the sound, but it
> sets it to zero.
>
> I have no Master in alsamixer, and I thought about putting a softvol
> device called Master, to be able to use it in MythTv. I used this code,
> but it does not work:
>
> pcm.!default {
> type softvol
> slave.pcm "ch51dup"
> control {
> name "Master"
> card 0
> }
> }
>
>

The below is my asound.conf for the fake volume master - works fine.
Fakerear is my equivalent of your ch51dup.

HTH, PC

pcm.softvol {
type softvol
slave {
pcm "fakerear"
}
control {
name "SoftMaster"
card 0
}
}

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derliebegott at gmail

Dec 9, 2007, 11:36 AM

Post #3 of 6 (903 views)
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Re: Ticket #1104: multi channel audio support [In reply to]

2007/12/9, Paul Catchpole <paul [at] paulcatchpole>:
> MythTV wrote:
> > #1104: multi channel audio support
> > -------------------------+--------------------------------------------------
> > Reporter: Mark Spieth | Owner: ijr
> > Type: enhancement | Status: new
> > Priority: minor | Milestone: 0.21
> > Component: mythtv | Version: head
> > Severity: medium | Resolution:
> > Mlocked: 0 |
> > -------------------------+--------------------------------------------------
> >
> > Comment(by anonymous):
> >
> > I am using markspieth's .asoundrc file, and it is working great.
> >
> > But I have two problems:
> >
> > 1. Sound in MythMusic "crackles" a little bit. Changing volume does not
> > help.
> >
> > 2. If the volume of PCM (I have no Master) is on 0 (zero), I can still
> > hear some sound on the speakers. Sound is gone only if I mute it directly
> > in alsamixer. MythTv's muting does not actually mute the sound, but it
> > sets it to zero.
> >
> > I have no Master in alsamixer, and I thought about putting a softvol
> > device called Master, to be able to use it in MythTv. I used this code,
> > but it does not work:
> >
> > pcm.!default {
> > type softvol
> > slave.pcm "ch51dup"
> > control {
> > name "Master"
> > card 0
> > }
> > }
> >
> >
>
> The below is my asound.conf for the fake volume master - works fine.
> Fakerear is my equivalent of your ch51dup.
>
> HTH, PC
>
> pcm.softvol {
> type softvol
> slave {
> pcm "fakerear"
> }
> control {
> name "SoftMaster"
> card 0
> }
> }

How do you use SoftMaster in MythTv? As I remember it is only possible
to choose between PCM and Master
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paul at paulcatchpole

Dec 9, 2007, 1:37 PM

Post #4 of 6 (891 views)
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Re: Ticket #1104: multi channel audio support [In reply to]

Ma Begaj wrote:
> 2007/12/9, Paul Catchpole <paul [at] paulcatchpole>:
>
>> MythTV wrote:
>>
>>> #1104: multi channel audio support
>>> -------------------------+--------------------------------------------------
>>> Reporter: Mark Spieth | Owner: ijr
>>> Type: enhancement | Status: new
>>> Priority: minor | Milestone: 0.21
>>> Component: mythtv | Version: head
>>> Severity: medium | Resolution:
>>> Mlocked: 0 |
>>> -------------------------+--------------------------------------------------
>>>
>>> Comment(by anonymous):
>>>
>>> I am using markspieth's .asoundrc file, and it is working great.
>>>
>>> But I have two problems:
>>>
>>> 1. Sound in MythMusic "crackles" a little bit. Changing volume does not
>>> help.
>>>
>>> 2. If the volume of PCM (I have no Master) is on 0 (zero), I can still
>>> hear some sound on the speakers. Sound is gone only if I mute it directly
>>> in alsamixer. MythTv's muting does not actually mute the sound, but it
>>> sets it to zero.
>>>
>>> I have no Master in alsamixer, and I thought about putting a softvol
>>> device called Master, to be able to use it in MythTv. I used this code,
>>> but it does not work:
>>>
>>> pcm.!default {
>>> type softvol
>>> slave.pcm "ch51dup"
>>> control {
>>> name "Master"
>>> card 0
>>> }
>>> }
>>>
>>>
>>>
>> The below is my asound.conf for the fake volume master - works fine.
>> Fakerear is my equivalent of your ch51dup.
>>
>> HTH, PC
>>
>> pcm.softvol {
>> type softvol
>> slave {
>> pcm "fakerear"
>> }
>> control {
>> name "SoftMaster"
>> card 0
>> }
>> }
>>
>
> How do you use SoftMaster in MythTv? As I remember it is only possible
> to choose between PCM and Master
> _______________________________________________
> mythtv-dev mailing list
> mythtv-dev [at] mythtv
> http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-dev
>
Set the mixer device to softvol, from that example.

PC
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derliebegott at gmail

Dec 19, 2007, 2:45 AM

Post #5 of 6 (866 views)
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Re: Ticket #1104: multi channel audio support [In reply to]

2007/12/19, MythTV <mythtv [at] cvs>:
> #1104: multi channel audio support
> -------------------------+--------------------------------------------------
> Reporter: Mark Spieth | Owner: ijr
> Type: enhancement | Status: new
> Priority: minor | Milestone: 0.21
> Component: mythtv | Version: head
> Severity: medium | Resolution:
> Mlocked: 0 |
> -------------------------+--------------------------------------------------
>
> Comment(by markspieth):
>
> update which fixes the LFE rumble present in 33.
>
> added ALSA:surround51 as an option in audio config.

Thanks, absolutely great. I am waiting with hope that it will be
commited in the SVN.
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paul at paulcatchpole

Dec 31, 2007, 11:32 AM

Post #6 of 6 (811 views)
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Re: Ticket #1104: multi channel audio support [In reply to]

On Mon, 31 Dec 2007 12:46:59 -0000
"MythTV" <mythtv [at] cvs> wrote:

> 40 fixes up gain values

Patch 40 works well for us here... Gain is back to usual too - haven't
needed to play with the relative mixer settings yet.

No doubt mythmusic and native 6ch DVD will get tested this evening!

Is it worth me recompiling with built-in AC3 support?

Cheers again, Mark.

PC
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