Set position of where song will start?

Questions and discussion about building and using Max for Live devices
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prebentious
Posts: 309
Joined: Fri Jul 20, 2007 12:07 am

Set position of where song will start?

Post by prebentious » Sat May 19, 2012 3:55 pm

Hello!

I have a question for those smart M4L folks out there.

Say I'm recording into the arrangement and things are going well, but then I mess up. So I'd like to try again, while keeping my original performance.
The thing to do would be to move the transport to start AFTER my last performance, so the new performance gets recorded into blank arrangement space, leaving the first performance intact.

I know how to do the math, and I tried moving the current_song_time property of live_set, but that only works when the transport is playing. If I move current_song_time when the transport is stopped it doesn't affect the position that Live starts at.

So I put in a function to move the playhead right after I press play again. That works, but there's a hiccup when Live starts, as it jumps around right after I press play (I had to put in a deferlow, which probably exacerbates the lag).

I notice in the arrange page, that sometimes there are orange and green triangles just below the scrub area. The set_current_song_time moves the orange triangle, but not the green one, and it looks like the green one is the one in charge of where playback starts.

Anyone have any advice on how to set the playback position when transport is stopped?
THanks!
Ben

Here's a demo:

<pre><code>
----------begin_max5_patcher----------
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qoNLmaMkmHiu0C2423FWvG08k7em6CWKMUvVYIbT532IKdXiM2oQ40RumL3L
WLpk76easzyLtb9oiaih6OlfcJ.oL9X3I8hhGuBrco5e+anuIbw+alYzcsk6
a8d4ReuOp.CJUBTpUenF2lPT9PQqkUUfO+dQ2Hq1nsVrdMPe5fu.mpj3SVSI
WNMkMEMkdQ0zjjTxkESISPSeEJYm7Vze.X3qVcD
-----------end_max5_patcher-----------
</code></pre>

broc
Posts: 1149
Joined: Mon Jul 26, 2004 8:37 am

Re: Set position of where song will start?

Post by broc » Sat May 19, 2012 9:43 pm

I think moving the playhead right after start is the only way.
You could try to improve the reaction time by using [plugsync~] as trigger.

<pre><code>
----------begin_max5_patcher----------
656.3ocyW9sjZBCEF+Z7oHSldo0gveDr209ZzYGlHjUSGHwgDrtcmsO6M4.r
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G++GJrrD5BKofUclda.JEbQwjgrOo24Mq.9XZvJdGXc7g0jCBAlDO3RLIWky
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DPObzo9wpHyFCHxHTDwYJxtW9YgTpSgj8XnmURuQ2+q0T3HjTjSUTzXfTnam
3Fill6VIMlINham4rebw3zz0tLf4gWl7GDlfwjB
-----------end_max5_patcher-----------
</code></pre>

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