Help creating a multiband compressor

[juanamm]

I'm new and I don't know how to create a multiband compressor for my playlist.
If someone knows how to do it, please adapt it to my code and if you can, explain to me how it works so I can modify it.

# Settings
# settings.server.telnet := true
# settings.server.telnet.port := 8595
settings.log.level := 3
settings.harbor.bind_addrs := ["0.0.0.0"]
settings.log.file := true
settings.log.file.path := "/home/icecast2/liquidsoap/log/registro.log"

# SSL certificate configuration
transport = http.transport.tls(
  # Server mode: required,
  # client mode: optional, add certificate to trusted pool
  certificate="/etc/letsencrypt/live/osirisfm.org/fullchain.pem",
  # Server mode: required, client mode: ignored
  key="/etc/letsencrypt/live/osirisfm.org/privkey.pem",
)

# Environment Variables
password_dj=environment.get("PASSWORD_DJ")
password_inv1=environment.get("PASSWORD_INV1")
password_inv2=environment.get("PASSWORD_INV2")
password_inv3=environment.get("PASSWORD_INV3")
source_passw=environment.get("SOURCE_PASSW")
port_https=environment.get("PORT_HTTPS")
port_live=environment.get("PORT_LIVE")
port_inv1=environment.get("PORT_INV1")
port_inv2=environment.get("PORT_INV2")
port_inv3=environment.get("PORT_INV3")
host_https_no_prot=environment.get("HOST_HTTPS_NO_PROT")

# Convert string to integer
port_live_int=int_of_string(port_live)
port_https_int=int_of_string(port_https)
port_inv1_int=int_of_string(port_inv1)
port_inv2_int=int_of_string(port_inv2)
port_inv3_int=int_of_string(port_inv3)

# Set playlist original source and apply nrj
original_playlist_source=playlist("~/music/playlist.pls")
original_playlist=nrj(original_playlist_source)

# Apply crossfades to the playlist
original_playlist=crossfade(fade_out=3.0, fade_in=3.0, original_playlist)

#Here mutliband compressor code ?


# Security fallback
security_source=single("~/music_security/security.mp3")
playlist_securitized=fallback(track_sensitive=false, [original_playlist, security_source])

# Support for live streams
live=input.harbor(
    "live",
    port=port_live_int,
    password=password_dj,
    replay_metadata=true,
    icy_metadata_charset="UTF-8"
)
inv1=input.harbor(
    "inv1",
    port=port_inv1_int,
    password=password_inv1,
    replay_metadata=true,
    icy_metadata_charset="UTF-8"
)
inv2=input.harbor(
    "inv2",
    port=port_inv2_int,
    password=password_inv2,
    replay_metadata=true,
    icy_metadata_charset="UTF-8"
)
inv3=input.harbor(
    "inv3",
    port=port_inv3_int,
    password=password_inv3,
    replay_metadata=true,
    icy_metadata_charset="UTF-8"
)

# Fallback for live and music playlists
radio=fallback(track_sensitive=false, [live, inv1, inv2, inv3, playlist_securitized])  # Usar la fuente combinada

# Stream it out MP3
output.icecast(
    %ffmpeg(format="mp3", %audio(codec="libmp3lame", b="192k")),
    radio,
    mount="stream",
    name="DJ OsiriS Music Service",
    description="DJ OsiriS FM, estamos las 24 horas online con una variada propuesta musical y DJs en vivo!",
    fallible=true,
    host=host_https_no_prot,
    port=port_https_int,
    password=source_passw,
    transport=transport,
)

[vitoyucepi]

Hi @juanamm,
You could use compress.multiband.interactive or compress.multiband.
The additional documentation can be found on page 133 of the book.

[juanamm]

Hi @juanamm, You could use compress.multiband.interactive or compress.multiband. The additional documentation can be found on page 133 of the book.

Hi @vitoyucepi , thank you for sharing the necessary links with the syntax and parameters to create the multiband compressor.
The thing is that I'm new, I have a basic level of English and I don't understand how to adapt that code to my script.
I do not want to abuse your kindness, but I ask if you can help me by providing a basic configuration that suits my script and then I can read to change the parameters of the compressor to my liking.
I only want to apply the compressor to my playlist, not to the input.harbor

I've seen some people have had issues with the metadata and since you helped me migrate to v2.2.0 and everything works great for me, I don't want to mess up and ruin your old work.

It can be possible?

[vitoyucepi]

Have you tried using the interactive.harbor? Here is some information https://www.liquidsoap.info/doc-dev/server.html#interactive-variables.

I suggest using the compressor like this.

#Interactive multiband compressor
original_playlist = compress.multiband.interactive(original_playlist)

If this compressor does not meet your needs, there are other options available.

[juanamm]

Have you tried using the interactive.harbor? Here is some information https://www.liquidsoap.info/doc-dev/server.html#interactive-variables.

I suggest using the compressor like this.

#Interactive multiband compressor
original_playlist = compress.multiband.interactive(original_playlist)

If this compressor does not meet your needs, there are other options available.

I have correctly configured the code as suggested and added the line to allow to access variables's values ​ by web and that values ​​remain persistent:

# Interactive multiband compressor
original_playlist = compress.multiband.interactive(original_playlist)

# Start the web interface
interactive.harbor()

# Save variables values persistent
interactive.persistent("~/liquidsoap/vars.json")

Questions:
1.) Can I use some authentication method on the url: 'http://my_host.com:8000/interactive
1.1) Could it be at the level of the liquidosap script, in my case 'main.liq' ?
1.2) Or should I use authentication through 'nginx' config?
Could you share the sample codes?