Sweeper or Voice Track over song

[DJMic]

Is there a way to play some sweepers or voice track at the begining of a song, like professional radio station ?
Is it possible to define "Intro Point" ?

[Moonbase59]

I don’t think that’s easily possible with the current versions, in an automated way—correct me if I’m wrong.

Nevertheless, cue_file (part of my autocue implementation) has already reserved some metadata names for future ramp (intro) and hook points:

    # reserved for future expansion
    "liq_ramp1": float,
    "liq_ramp2": float,
    "liq_ramp3": float,
    "liq_hook1_in": float,
    "liq_hook1_out": float,
    "liq_hook2_in": float,
    "liq_hook2_out": float,
    "liq_hook3_in": float,
    "liq_hook3_out": float,

I hope AzuraCast’s visual cue editor will one day support setting at least liq_ramp1 and maybe liq_hook1_in and liq_hook1_out which could simplify automation a lot.

Using liq_ramp1, we could at least easily determine if a sweeper/liner "fits" over the intro, before vocals set in, and use existing Liquidsoap features (like add, smooth_add) to play it "on top":

The problem with these is that each and every radio automation and DJing software uses their own tags for these, because they’re not standardized. Thus my early proposal. If Liquidsoap uses it, maybe others pick it up…