[mythtv] Ticket #1104: multi channel audio support
Paul Catchpole
paul at paulcatchpole.co.uk
Sun Dec 9 21:37:51 UTC 2007
Ma Begaj wrote:
> 2007/12/9, Paul Catchpole <paul at paulcatchpole.co.uk>:
>
>> 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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>
Set the mixer device to softvol, from that example.
PC
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