[Alsa-user] sound device does not have any capture controls

Hi there! A couple years ago, I was using a RME digi32 PCI sound card with optical input to record music. Now, I am trying to install this device, but alsamixer refuses to recognize the card as an input sound card. here my cards, the last two being in the GPU video card: 0 [Digi32 ]:

Re: [Alsa-user] sound device does not have any capture controls

I forgot to insert the pcm 00-00: Digi32 IEC958 : Digi32 IEC958 : playback 1 : capture 1 01-00: VT1708S Analog : VT1708S Analog : playback 1 : capture 1 01-02: VT1708S Alt Analog : VT1708S Alt Analog : playback 1 01-03: VT1708S Digital : VT1708S Digital : playback 1 02-03: HDMI 0 : HDMI 0 :

[Alsa-user] How to Loopback sound with ALSA

Good Day @all ! I can easily record and play microphone sound using arecord --vumeter=mono --device="default:CARD=PCH"  -f cd  rec-test-mic.wav aplay --vumeter=mono --device="plughw:0,0"  rec-test-mic.wav Now i wanna play sound to my laptop speakers/headphones using ALSA (and only ALSA), and at