For Fade Up, the fade starts at the beginning of the cut (Cut Start) and
ends at the Fade Up marker.  For Fade Down, the fade starts at the Fade
Down marker and ends at the end of the cut (Cut End).  The arrows on the
marker lines give a subtle hint of this.

Adding a Segue marker with Fades confuses things a bit, but I don't
understand it well enough to try to explain, sorry.

To add to Fred's comments about the Fades: Ideally a station would modify
their songs for trims, fades, and levels before they are brought into
Rivendell. So the only thing the playback system would need to know about
is segue points.  However, that's a lot of work for us small stations, so
we take the easier way out and use the RDLibrary controls.

Mike

On Mon, Oct 25, 2021 at 9:39 AM Alejandro olivan Alvarez <
alejandro.olivan.alva...@gmail.com> wrote:

> Hi! Thenk you for your help... now a possible inter-relation between
> Start/End markers and Fade Up/Down markers pops up... Regarding the other
> marks, your explanation is a nice and clear explanation.
> On 10/25/21 6:07 PM, Mike Carroll wrote:
>
> I can't speak to the actual levels that are involved, but here's how we
> use the markers.
>
>    - Cut Start - Airplay starts playing the cut wherever this marker is
>    placed; anything before the marker is ignored. We use this to drop
>    excessive intro chatter in live cuts, and in one case to drop out an
>    obscenity at the start of a song.
>    - Cut End - Airplay ends playing the cut and starts the next cart. We
>    use this to drop bad edits on live cuts, where the start of the next song
>    is included in the cut.
>
> The problem with the start/end markers is that the Airplay output level is
> at its normal setting. This can cause abrupt-sounding transitions from one
> song to the next.  The Fade settings can help with this.
>
>    - Fade Up - Airplay starts playing the cut at "silence" level at the
>    beginning of the marker, then increases the level to normal by the end of
>    the marker.  We use this to soften the beginning of live music, where there
>    may be an abrupt edit between two cuts.
>
> Ok... Here's the point, and my confusion, because I ONLY have 1 mark, the
> FadeUP mark, I don't see any possible interval... I quote your mail:
>
> 'Airplay starts playing the cut at "silence" level at the beginning of the
> marker'
>
> ...but which Marker? The Start Cut? or Fade-Up Marker itself?
>
> Or do you mean I can put Fade-up mark BEFORE Cut-Start mark? defining, now
> with two marks, an effective fade UP interval? ... if so, my understanding
> of Cut-Start Mark is that, it sets the point where the content starts,
> ignoring anything before it UNLESS a Fade-Up Mark is define, in which case,
> Cut-start mark behaves differently... this is the point I don't understand
>
>
>    - Fade Down - Airplay starts fading the cut at the beginning of the
>    marker, reaching "silence" level at the end of the marker.  We use this to
>    soften applause after live cuts, or to force a fade on a song that ends
>    abruptly.
>
> Note that RDLibrary does not perform Fade Up or Down when you're playing a
> cut in the waveform editor (at least in Riv2).
>
> The Segue settings give you more help with cart transitions.
>
>    - Segue Start - Airplay starts fading the cut to "silence" at the
>    beginning of the marker.  This continues until Segue End.
>    - Segue End - The cut is a "silence" level by this point. Airplay ends
>    playing the cut.
>
> The difference between Segue Start/End and Fade Down is the Airplay will
> start playing the next cart at the beginning of Segue Start rather than at
> the end of Fade Down.  This allows you to overlap carts for segues.  Note
> that the Segue markers are ignored unless you have "segue" set as the cart
> transition in your logs.
>
> These other markers aren't used by us:
>
>    - Talk Start/End - This turns the Airplay time indicator blue at
>    Start, returning to normal color at End. This is used to let the DJ know
>    it's a good place to talk over the music.  The setting doesn't do anything
>    else that I can see.
>    - Hook Start/End - This marks a section of the cut that will be played
>    in Airplay when a Sound Panel button is pressed.  It's controlled by the
>    "Play" setting on bottom of the Sound Panel - "Play All" or "Play Hook".
>
> Regards,
> Mike
>
>
>
> On Mon, Oct 25, 2021 at 8:20 AM Alejandro olivan Alvarez <
> alejandro.olivan.alva...@gmail.com> wrote:
>
>> Hi list.
>>
>> While trying to go as deep as I can in testing Rivendell, I'm finding
>> that I'm not understanding enough the underlying use-cases of certain
>> tools... particularly audio (waveforms) manipulation tools.
>>
>> I've read the documentation... but is merely an statement (which I
>> semantically understand) but I fail to understand the working
>> principle/mechanism
>>
>> Regarding Fade-Down, I think this is the easy one: I understand that,
>> whenever you put the mark on, RDAirplay, when reaching the mark, will
>> start unconditionally to fade down, FROM that point, onwards... If
>> that's the case, It's unclear to me to which level the fading down will
>> reach (I asume -40dB , or whatever 'mute' level the machine is at) and
>> how long will take the fading lasts (to the end of the song, linearly,
>> for some amount of predefined time, linearly, etc). The way I imagine
>> fade-down use-case, it is meant to be put close to the end of the song
>> (so I can have a trailing bass drum base faded down)... any hints? Am I
>> very wrong?
>>
>> Regarding Fade-Up, I'm quite confused... what is supposed to happen in
>> RDAirplay at this mark? if It will start fading up, to full level (0 db
>> I guess) FROM that point on, what is the level before it? does the
>> presence of such mark imply that everything before the mark gets muted?
>> or, on the contrary, the mark indicates the point where/when full level
>> is reached AT?... and, if so, where in time does the fading up starts?
>> could someone clarify?
>>
>> Thank yo very much.
>>
>> Best regards.
>>
>> _______________________________________________
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>> Rivendell-dev@lists.rivendellaudio.org
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>>
>
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