Jump to content

The delay formula and the "starting up" sound


DWINC

Recommended Posts

Hey guys,

 

I also asked this on the Gearslutz forum but no one seems to know.....maybe my fellow Logic friends do... :D

 

My friend told me once that there is a very simple formula to calculate delay to the rhythm/bpm of the song, so that it is very easy to have a word repeated of a vocalist.

 

My friend is still happy and alive, but he forgot the formula......And since I need it very badly, I wanted to ask if anyone knows here. I had to do with the milliseconds, divided by the BPM or somemthing like that.

 

 

 

Question 2:

 

Does anyone know how I can generate a 'starting up' sound. Let me explain what I mean with that :wink: :

 

I want to start a song with a recording of my own (voice, guitar, or a whole song for that matter) but want to start it up real slow and then speed it up. Just like you start a vinyl record on your record player but then more melodramatic hahahaha. So picture this: I have a song recorded, and I want to have this effect at the beginning, with the WHOLE song, so all the sounds in that song at the beginning, I want in the 'startup up slowmo-speeding" as well. I hope I can explain it a bit (Hey I am not a native speaker ;) )

 

Many thanks!

 

Bjorn

Link to comment
Share on other sites

The delay formula is:

 

60,000 / tempo = value of quarter note delay, in milliseconds

 

Example: If your tempo is 60 BPM, then a quarter note delay =

 

60,000/ 60 BPM = 1000 ms

 

Then you do the math to get the other values.

 

8th note = 500 ms

16th note = 250 ms

 

...and so on.

Link to comment
Share on other sites

I want to start a song with a recording of my own (voice, guitar, or a whole song for that matter) but want to start it up real slow and then speed it up. Just like you start a vinyl record on your record player but then more melodramatic hahahaha. So picture this: I have a song recorded, and I want to have this effect at the beginning, with the WHOLE song, so all the sounds in that song at the beginning, I want in the 'startup up slowmo-speeding" as well.

 

Righto.

 

1. Mix your song first, or at least the intro part to the song

2. Take that sound file and load it up into an EXS-24 instrument

3. Set the pitchbend depth to 12

4. Add 3 or 4 additional matrix modulation slots programmed as follows:

 

source = pitchbend

destination = pitch

depth = maximum (value slider all the way up)

 

Now, pull the pitchbend wheel fully towards you and play Middle C. As the sound plays, move the pitchbend wheel back towards the center. This will give you that startup effect and it will be a very accurate simulation.

 

You may need to adjust the depth of one or more of the pitch bend modulation slots to fine-tune the amount of sloooooooooow sound.

 

Record a couple of takes of this, using hyperdraw to refine the curve of the pitchbend if the movement you played isn't exactly right for you. Once you have the effect sounding good, bounce it.

 

Finally, splice that audio file to the beginning of the main body of the rest of the song.

Link to comment
Share on other sites

How about burn a CDr and use a pioneer CDJ 1000. It has a "brake" feaure setting so you can make it go very slow or fast from stopped to full rotation. You can record the output back into logic and place the sound start up right where you want it.
Link to comment
Share on other sites

Hey guys!

 

Thanks for all the great help! Gonna try it out.

 

About the Pioneer tip: Yes...good one, but I don't own one (yet) :wink: , but I like them a lot!

 

Indeed Logic Pro Forum 4 to 0 !

Link to comment
Share on other sites

I never really understood why you'd need any app other than a basic calculator to make that kind of operation?

 

BPM means Beats Per Minutes. That's the number of beats you have in one minute. Need to calculate the length of one beat? That's the number of minutes per beat. That would be 1/BPM. Need that number in seconds? Multiply the number of minutes by 60. That's 60/BPM. Need that number in milliseconds? Multiply that number by 1,000. That's 60,000/BPM.

 

Once you understand, you should never have to memorize a formula.

Link to comment
Share on other sites

Question 2:

 

Does anyone know how I can generate a 'starting up' sound.

 

(I like the idea of ski's suggestion..I'll have to try that!)

 

As Justin-Ch pointed out, Turntablist has this function and it works rather well. You could also bounce your song, open it in the Sample Editor, then use your interface to route audio out of and back into Logic (if it has that capability, and if not, try Soundflower or the like). Once you have the routing correct, You can record yourself using the scrub tool to slowly build up seed....but I think I like ski's idea best.

 

X

Link to comment
Share on other sites

Thanks X-man.

 

Yeah, if you want to make anything sound like it's speeding up/slowing down a la turntable or tape machine that lil' trick works really well. The key is piling up the pitchbend--->pitch matrix modulation assignments to get at least 4 octaves worth of bend.

 

-=sKi=-

Link to comment
Share on other sites

Scroll down the page here for Turntablist. It has similar turntable stop/start emulations to the Pioneer CDJs.

 

 

On that same Web site, check out Transverb, which can be automated to do this effect, and also Google "Speedster" to find another AU pluggie (by Airy Andre) that'll let you make this kind of effect.

 

OR, take the bounce into Soundhack and use Varispeed function table to draw your startup curve. LOTS of options for making this effect ~!

Link to comment
Share on other sites

the "slow vinyl startup" can be done in Live in about .5 seconds- maybe pick up a demo copy? (i know, it's not a live forum..) but that's another easy way to do it. Under Master Tempo on the main mixer channel, just draw in whatever tempo automation you want. i can explain further if needed...
Link to comment
Share on other sites

Archived

This topic is now archived and is closed to further replies.

×
×
  • Create New...