[pulseaudio-discuss] Sink mapping

[J Cornily]

Hi,
I have the following problem.
I have configured a Kodi media center.
I have a speaker supporting airplay (through roap).
Theroap sink is working fine.

Never the less, in kodi audio settings.
It only propose alsa, or alsa through pulseaudio.
Kodi does not support airplay
That's it.

So may be there is way to map an roap sink
into a alsa one.
May its a silly question, but any pointer
in the right direction would be welcome.

Mfg
Jacques
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[pulseaudio-discuss] Bluetooth headset HSP/HFP sound not working but microphone is

[Bram Lagerweij]

Dear pulseaudio,

I've, for year's, been happily working with pulseaudio on ubuntu. 
Recently an issue appeared with the combination with my headset Sony 
WH-H900N. It used to work in the following two profiles:


1. HSP/HFP mode with microphone & sound
2. A2DP for high quality sound only (I combine this with an LDAC profile)

I'm not sure since when, but I'm profile 1 is not working any more. The 
microphone is, but the sound does not come through. I do hear more 
static when it switches to the HSP/HFP profile but nothing that I play 
gets to sound from the headset. The exact problem, and the related issue 
search is documented as askubuntu 
. 
Do you know what is wrong and how to fix it? Did anything regarding 
HSP/HFP change on the pulseaudio side. Or could you help me getting to 
the exact cause of the problem?


Kind Regards,
Bram Lagerweij

askubuntu link: 
https://askubuntu.com/questions/1328334/bluetooth-headset-hsp-hfp-sound-not-working-but-microphone-is 



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Re: [pulseaudio-discuss] Why should we set multichannel-input and multichannel-output to a fallback map

[Tanu Kaskinen]

On Fri, 2021-04-02 at 17:49 +0800, Chengyi Zhao wrote:
> Hi guys,
> 
> I don't know why we should set multichannel-input and 
> multichannel-output to fallback map
> in the configuration file default.conf.
> 
> I think these have no actual usage scenarios, we should delete these 
> configurations.
> 
> Do you agree with me？
> 
> 
> ./src/modules/alsa/mixer/profile-sets/default.conf：
> 
> -[Mapping multichannel-output]
> -device-strings = hw:%f
> -channel-map = left,right,rear-left,rear-right
> -exact-channels = false
> -fallback = yes
> -priority = 1
> -direction = output
> -
> -[Mapping multichannel-input]
> -device-strings = hw:%f
> -channel-map = left,right,rear-left,rear-right
> -exact-channels = false
> -fallback = yes
> -priority = 1
> -direction = input
> -

These are used with sound cards that can't be opened with the regular
mappings. Some pro audio cards can have e.g. 12 channels and refuse to
be opened with any less channels. The "exact-channels" option is set to
false with the multichannel mappings, which means that no matter how
many channels the card requires, these mappings successfully open the
device.

-- Tanu

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[pulseaudio-discuss] Why should we set multichannel-input and multichannel-output to a fallback map

[Chengyi Zhao]

Hi guys,

I don't know why we should set multichannel-input and 
multichannel-output to fallback map

in the configuration file default.conf.

I think these have no actual usage scenarios, we should delete these 
configurations.


Do you agree with me？


./src/modules/alsa/mixer/profile-sets/default.conf：

-[Mapping multichannel-output]
-device-strings = hw:%f
-channel-map = left,right,rear-left,rear-right
-exact-channels = false
-fallback = yes
-priority = 1
-direction = output
-
-[Mapping multichannel-input]
-device-strings = hw:%f
-channel-map = left,right,rear-left,rear-right
-exact-channels = false
-fallback = yes
-priority = 1
-direction = input
-


Best Regards,
Chengyi


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