Re: [Alsa-user] CM6206-LX linein mute ?

[Clemens Ladisch via Alsa-user]

The "PCM Capture Source" control is currently set to "Mic"; try the others.


Regards,
Clemens


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Re: [Alsa-user] CM6206-LX linein mute ?

[Luca Toldo]

What do you mean „try all settings“ ? How ? which ?

> Am 03.03.2019 um 19:04 schrieb Clemens Ladisch :
> 
> Luca Toldo wrote:
>> Simple mixer control 'PCM Capture Source',0
>>  Items: 'Mic' 'Line' 'IEC958 In' 'Mixer'
> 
> Please try all settings.
> 
> 
> Regards,
> Clemens



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Re: [Alsa-user] CM6206-LX linein mute ?

[Clemens Ladisch via Alsa-user]

Luca Toldo wrote:
> Simple mixer control 'PCM Capture Source',0
>   Items: 'Mic' 'Line' 'IEC958 In' 'Mixer'

Please try all settings.


Regards,
Clemens


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Re: [Alsa-user] CM6206-LX linein mute ?

[Luca Toldo]

Thankyou Clemens for pointing that out.
I do not know what happened since what I’ve documented but now the Line is also 
activated ..
Anyhow, hereafter the output of amixer
thank you so much 
Luca


——


Simple mixer control 'Speaker',0
  Capabilities: pvolume pswitch pswitch-joined
  Playback channels: Front Left - Front Right - Rear Left - Rear Right - Front 
Center - Woofer - Side Left - Side Right
  Limits: Playback 0 - 197
  Mono:
  Front Left: Playback 90 [46%] [-20.06dB] [on]
  Front Right: Playback 90 [46%] [-20.06dB] [on]
  Rear Left: Playback 90 [46%] [-20.06dB] [on]
  Rear Right: Playback 90 [46%] [-20.06dB] [on]
  Front Center: Playback 90 [46%] [-20.06dB] [on]
  Woofer: Playback 90 [46%] [-20.06dB] [on]
  Side Left: Playback 90 [46%] [-20.06dB] [on]
  Side Right: Playback 90 [46%] [-20.06dB] [on]
Simple mixer control 'PCM',0
  Capabilities: cvolume cswitch cswitch-joined
  Capture channels: Front Left - Front Right
  Limits: Capture 0 - 6928
  Front Left: Capture 6504 [94%] [9.40dB] [on]
  Front Right: Capture 6504 [94%] [9.40dB] [on]
Simple mixer control 'PCM Capture Source',0
  Capabilities: enum
  Items: 'Mic' 'Line' 'IEC958 In' 'Mixer'
  Item0: 'Mic'
Simple mixer control 'Line',0
  Capabilities: pvolume cvolume pswitch pswitch-joined cswitch cswitch-joined
  Playback channels: Front Left - Front Right
  Capture channels: Front Left - Front Right
  Limits: Playback 0 - 8065 Capture 0 - 6928
  Front Left: Playback 6144 [76%] [-0.01dB] [off] Capture 6688 [97%] [10.12dB] 
[on]
  Front Right: Playback 6144 [76%] [-0.01dB] [off] Capture 6688 [97%] [10.12dB] 
[on]
Simple mixer control 'Mic',0
  Capabilities: pvolume cvolume pswitch pswitch-joined cswitch cswitch-joined
  Playback channels: Front Left - Front Right
  Capture channels: Front Left - Front Right
  Limits: Playback 0 - 8065 Capture 0 - 6928
  Front Left: Playback 6144 [76%] [-0.01dB] [off] Capture 6550 [95%] [9.58dB] 
[on]
  Front Right: Playback 6144 [76%] [-0.01dB] [off] Capture 6550 [95%] [9.58dB] 
[on]
Simple mixer control 'IEC958 In',0
  Capabilities: cswitch cswitch-joined
  Capture channels: Mono
  Mono: Capture [on]

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Re: [Alsa-user] CM6206-LX linein mute ?

[Clemens Ladisch via Alsa-user]

Luca Toldo wrote:
> It works fine when I connect the USB Sound microusb to my MacBook, however 
> when I try to connect it to the Raspberry, it is mute.

Please show the output of "amixer".

> https://www.raspberrypi.org/forums/viewtopic.php?f=38=233817=1430727

All three inputs _except_ the line input are enabled.

> I feel the problem is with the configuration in the sound/usb/quirks.c that 
> are valid for the CM6206 but do not differentiate for the LX

Those settings should not affect the line input.


Regards,
Clemens


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[Alsa-user] CM6206-LX linein mute ?

[Luca Toldo]

dear all,
I’ve purchased a USB Sound external card, to deliver me nice signal from a 
Radar sensor.
It works fine when I connect the USB Sound microusb to my MacBook, however when 
I try to connect it to the Raspberry, it is mute.
I described all what I did in the raspberry community 

https://www.raspberrypi.org/forums/viewtopic.php?f=38=233817=1430727#p1430727
 


but did not receive any help.

I feel the problem is with the configuration in the sound/usb/quirks.c that are 
valid for the CM6206 but do not differentiate for the LX

https://www.cmedia.com.tw/support/download_center 
 allows to download the 
(windows) drivers and the PDF specifications

Any advice on how to successfully use the CM6206-LX based USB Sound card to 
raspberry (as Linein input) is appreciated.___
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