Audacity not record from input line (pink)

hi and excuse my bad english.
Windows 10 and Audacity 3.0.2.
Audacity is capable to record youtube for example, but it is unable to record the signal of the front input line (pink) that is connected to the PC from a hifi sound equipment. However, the input line can be heard. i’ve stereo mixer activated.
In Audacity configuration:
Windows WASAPI - Record: Speaker Realtek HD Audio - 2 Channels - Play: Speaker Realtek HD Audio
I have also tried with 1 channel

Thanks

Make sure to select the microphone as your [u]Recording Device[/u].

If you have front & rear mic inputs there may be two selections so try them both.

I have tried all possible combinations.

This is the LOG.TXT:

11:28:24: Audacity 3.0.2
11:28:24: Trying to load FFmpeg libraries...
11:28:24: Trying to load FFmpeg libraries from system paths. File name is 'avformat-55.dll'.
11:28:24: Looking up PATH environment variable...
11:28:24: PATH = 'C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;C:\WINDOWS\System32\WindowsPowerShell\v1.0\;C:\WINDOWS\System32\OpenSSH\;C:\Program Files\AutoFirma\AutoFirma;C:\Users\calco\AppData\Local\Microsoft\WindowsApps;'
11:28:24: Temporarily prepending ';' to PATH...
11:28:24: Checking for monolithic avformat from 'avformat-55.dll'.
11:28:24: Error: Failed to load shared library 'avformat-55.dll' (error 126: No se puede encontrar el módulo especificado.)
11:28:24: Loading avutil from ''.
11:28:24: Error: Failed to load shared library '.dll' (error 126: No se puede encontrar el módulo especificado.)
11:28:24: Loading avcodec from ''.
11:28:24: Error: Failed to load shared library '.dll' (error 126: No se puede encontrar el módulo especificado.)
11:28:24: Loading avformat from 'avformat-55.dll'.
11:28:24: Error: Failed to load shared library 'avformat-55.dll' (error 126: No se puede encontrar el módulo especificado.)
11:28:24: Error: Failed to load FFmpeg libraries.
11:28:24: Returning PATH to previous setting: C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;C:\WINDOWS\System32\WindowsPowerShell\v1.0\;C:\WINDOWS\System32\OpenSSH\;C:\Program Files\AutoFirma\AutoFirma;C:\Users\calco\AppData\Local\Microsoft\WindowsApps;
11:28:24: Error: Failed to find compatible FFmpeg libraries.

This is the AUDIODEV.TXT:

==============================
Default recording device number: 1
Default playback device number: 3
==============================
Device ID: 0
Device name: Microsoft Sound Mapper - Input
Host name: MME
Recording channels: 2
Playback channels: 0
Low Recording Latency: 0.09
Low Playback Latency: 0.09
High Recording Latency: 0.18
High Playback Latency: 0.18
Supported Rates:
==============================
Device ID: 1
Device name: Mezcla estéreo (Realtek High De
Host name: MME
Recording channels: 2
Playback channels: 0
Low Recording Latency: 0.09
Low Playback Latency: 0.09
High Recording Latency: 0.18
High Playback Latency: 0.18
Supported Rates:
==============================
Device ID: 2
Device name: Microsoft Sound Mapper - Output
Host name: MME
Recording channels: 0
Playback channels: 2
Low Recording Latency: 0.09
Low Playback Latency: 0.09
High Recording Latency: 0.18
High Playback Latency: 0.18
Supported Rates:
    8000
    9600
    11025
    12000
    15000
    16000
    22050
    24000
    32000
    44100
    48000
    88200
    96000
    176400
    192000
    352800
    384000
==============================
Device ID: 3
Device name: Altavoces (Realtek High Definit
Host name: MME
Recording channels: 0
Playback channels: 2
Low Recording Latency: 0.09
Low Playback Latency: 0.09
High Recording Latency: 0.18
High Playback Latency: 0.18
Supported Rates:
    8000
    9600
    11025
    12000
    15000
    16000
    22050
    24000
    32000
    44100
    48000
    88200
    96000
    176400
    192000
    352800
    384000
==============================
Device ID: 4
Device name: Realtek Digital Output (Realtek
Host name: MME
Recording channels: 0
Playback channels: 2
Low Recording Latency: 0.09
Low Playback Latency: 0.09
High Recording Latency: 0.18
High Playback Latency: 0.18
Supported Rates:
    8000
    9600
    11025
    12000
    15000
    16000
    22050
    24000
    32000
    44100
    48000
    88200
    96000
    176400
    192000
    352800
    384000
==============================
Device ID: 5
Device name: Controlador primario de captura de sonido
Host name: Windows DirectSound
Recording channels: 2
Playback channels: 0
Low Recording Latency: 0.12
Low Playback Latency: 0
High Recording Latency: 0.24
High Playback Latency: 0
Supported Rates:
==============================
Device ID: 6
Device name: Mezcla estéreo (Realtek High Definition Audio)
Host name: Windows DirectSound
Recording channels: 2
Playback channels: 0
Low Recording Latency: 0.12
Low Playback Latency: 0
High Recording Latency: 0.24
High Playback Latency: 0
Supported Rates:
==============================
Device ID: 7
Device name: Controlador primario de sonido
Host name: Windows DirectSound
Recording channels: 0
Playback channels: 2
Low Recording Latency: 0
Low Playback Latency: 0.12
High Recording Latency: 0
High Playback Latency: 0.24
Supported Rates:
    8000
    9600
    11025
    12000
    15000
    16000
    22050
    24000
    32000
    44100
    48000
    88200
    96000
    176400
    192000
==============================
Device ID: 8
Device name: Altavoces (Realtek High Definition Audio)
Host name: Windows DirectSound
Recording channels: 0
Playback channels: 2
Low Recording Latency: 0
Low Playback Latency: 0.12
High Recording Latency: 0
High Playback Latency: 0.24
Supported Rates:
    8000
    9600
    11025
    12000
    15000
    16000
    22050
    24000
    32000
    44100
    48000
    88200
    96000
    176400
    192000
==============================
Device ID: 9
Device name: Realtek Digital Output (Realtek High Definition Audio)
Host name: Windows DirectSound
Recording channels: 0
Playback channels: 2
Low Recording Latency: 0
Low Playback Latency: 0.12
High Recording Latency: 0
High Playback Latency: 0.24
Supported Rates:
    8000
    9600
    11025
    12000
    15000
    16000
    22050
    24000
    32000
    44100
    48000
    88200
    96000
    176400
    192000
==============================
Device ID: 10
Device name: Realtek Digital Output (Realtek High Definition Audio)
Host name: Windows WASAPI
Recording channels: 0
Playback channels: 2
Low Recording Latency: 0
Low Playback Latency: 0.003
High Recording Latency: 0
High Playback Latency: 0.01
Supported Rates:
    48000
==============================
Device ID: 11
Device name: Realtek Digital Output (Realtek High Definition Audio) (loopback)
Host name: Windows WASAPI
Recording channels: 2
Playback channels: 0
Low Recording Latency: 0.003
Low Playback Latency: 0
High Recording Latency: 0.01
High Playback Latency: 0
Supported Rates:
==============================
Device ID: 12
Device name: Altavoces (Realtek High Definition Audio)
Host name: Windows WASAPI
Recording channels: 0
Playback channels: 2
Low Recording Latency: 0
Low Playback Latency: 0.003
High Recording Latency: 0
High Playback Latency: 0.01
Supported Rates:
    48000
==============================
Device ID: 13
Device name: Altavoces (Realtek High Definition Audio) (loopback)
Host name: Windows WASAPI
Recording channels: 2
Playback channels: 0
Low Recording Latency: 0.003
Low Playback Latency: 0
High Recording Latency: 0.01
High Playback Latency: 0
Supported Rates:
==============================
Device ID: 14
Device name: Mezcla estéreo (Realtek High Definition Audio)
Host name: Windows WASAPI
Recording channels: 2
Playback channels: 0
Low Recording Latency: 0.003
Low Playback Latency: 0
High Recording Latency: 0.01
High Playback Latency: 0
Supported Rates:
==============================
Selected recording device: 13 - Altavoces (Realtek High Definition Audio) (loopback)
Selected playback device: 12 - Altavoces (Realtek High Definition Audio)
Supported Rates:
    48000
Received -9996 while opening devices

Tell me please, which is the combination of devices that I have to use to be able to record the hifi audio on the pc through the front input line(pink)

Are you sure that the “front input line(pink)” works?
To check that, open the Windows Sound control panel, play something into the front line (pink) input, and ensure that one of the listed devices shows it’s green meter responding to the sound.

WSCpanel.png
I suspect that you will need to enable a hidden device in the Windows Sound control panel.
Unfortunately, Microsoft do not make this very easy - This page may help: https://manual.audacityteam.org/man/windows_accessing_the_windows_sound_controls.html

When that’s working, make a note of what that device is called.

Finally solved. The problem was that windows blocked the microphone for privacy.
As there will be many users who have the same problem, here are the steps to fix it.

How to adjust microphone privacy settings in Windows 10

Windows logo Start button> Settings> Privacy> Microphone (left menu)

  • Under Allow access to the microphone of this device, select Change. Make sure the toggle button is on.
  • Under Allow apps to access the microphone, make sure the toggle button is on.
  • If you have this problem with a specific application, make sure the toggle button next to that application is also activated.

Now that it’s working…

to be able to record the hifi audio on the pc through the front input line(pink)

What are you plugging-in? The pink input is usually a mic input and the blue is line-in.

A line level signal (i.e. from an “RCA” output) is about 100 times stronger than a microphone signal so the mic input is usually too sensitive, plus the mic input is often mono and low-quality.

…I did have one computer where the inputs were configurable and when I plugged something in, it asked me, “What did you plug in?” and I could click a selection.

my sound card also allows me to choose: input line, mic, front speaker output, rear speaker output … and I choose input line, and it’s perfect.
It also allows me to record with CoolEdit, which before I could not
Thank you very much for your help