Page 1 of 6 123 ... LastLast
Results 1 to 10 of 59

Thread: Tap Tempo for Accurate Event Period

Hybrid View

  1. #1
    Join Date
    Feb 2009
    Location
    Dayton, OH
    Posts
    129
    Post Thanks / Like

    Default Tap Tempo for Accurate Event Period

    Hey everyone,

    So I've noticed that a well-chosen event period can make all the difference when sequencing complex, fast-moving pieces (like a lot of TSO). What I mean by this is, it is optimal to choose an event period length such that it lines up to the beats in the song.

    For example, at 150 BPM, each beat lasts exactly 400msec, so setting the event period to 50 msec allows you to have exactly 8 events per beat. In other words, one event corresponds to one 32nd note exactly (http://lights.onthefive.com/tapcalc/8evpb.png).

    Since Vixen's event period lengths must be integer values (and a song rarely holds a perfectly constant tempo), your sequences will rarely "match-up" perfectly. You'll have to insert an occasional extra event if your beats are a bit too fast (or remove one if too slow).

    In order to help calculate these optimal event period lengths, I put this little app together: <http://lights.onthefive.com/tapcalc/> It's pretty rough right now, but I think you can get the idea...

    Comments?

    Jonathon

  2. #2
    Join Date
    Feb 2009
    Location
    Plymouth, MN
    Posts
    8,238
    Post Thanks / Like

    Default Re: Tap Tempo for Accurate Event Period

    Very clever!!! Nice work! I'm impressed with your musicality. Did you formally study music?
    www.diychristmas.org

  3. #3
    Join Date
    Apr 2009
    Posts
    36
    Post Thanks / Like

    Default Re: Tap Tempo for Accurate Event Period

    Really great!! highlighted

  4. #4
    Join Date
    Jul 2007
    Location
    Under the bed...
    Posts
    537
    Post Thanks / Like

    Default Re: Tap Tempo for Accurate Event Period

    I love it. What a great tool,
    [HR][/HR]
    [SUP][FONT=century gothic][SIZE=3]Failure is always an option.
    "Writing it down" is the difference between science and screwing around.[/SIZE][/FONT]

    [/SUP]

  5. #5
    Join Date
    Dec 2007
    Posts
    1,177
    Post Thanks / Like

    Default Re: Tap Tempo for Accurate Event Period

    Very nice. I recommend you take it one step further and just have it tell you exactly what to put into Vixen during the new sequence wizard so there is nothing to calculate at all.

  6. #6
    Join Date
    Feb 2009
    Location
    Dayton, OH
    Posts
    129
    Post Thanks / Like

    Red face Re: Tap Tempo for Accurate Event Period

    Cool, I'm glad you all found interest in this... I'm open to any and all suggestions, as I've found this calculation very helpful. It really makes sequencing a lot easier, as you know almost exactly where to insert events.

    Quote Originally Posted by Virtus View Post
    Very nice. I recommend you take it one step further and just have it tell you exactly what to put into Vixen during the new sequence wizard so there is nothing to calculate at all.
    I highlighted the optimal event period for the 8 event per beat calculation, as this is what will be used 9 times out of 10. Unless you get into swing beats, or other strange time signatures.... (Has anyone synced lights to any Tool songs?)

  7. #7
    Join Date
    Dec 2007
    Posts
    1,177
    Post Thanks / Like

    Default Re: Tap Tempo for Accurate Event Period

    OK, I see it now. I think the capital "M" was throwing me... milliseconds should be abbreviated with a lower case "m". Captial "M" is for mega. Very nice...especially now that I understand what the red number was telling me!

  8. #8
    Join Date
    Nov 2007
    Location
    Middle Earth
    Posts
    2,263
    Post Thanks / Like

    Default Re: Tap Tempo for Accurate Event Period

    hate to through a spanner into the works, but Music that falls perfectly on the beat is 'soul-less'.. Its the ever so slight variances that actually make it interesting on the ear. 'Quantifed' music, you know the stuff that a midi sequencer chucks out might be accurate, but it does'nt sound very nice.. You might find it pretty hard to make many recordings actually fit nicely....
    [B][FONT=Arial]stell[COLOR="#FF0000"]a[/COLOR][COLOR="#008000"]s[/COLOR][COLOR="#0000CD"]c[/COLOR]apes[/FONT][/B] - LED lighting solutions for the Prosumer, Commercial and Entertainment Industries.
    Doing pixels first since 2009 with [URL="http://www.youtube.com/watch?v=GAt6A98lXQw"]just another megatree.[/URL]
    Follow us on Facebook at [url]www.facebook.com/stellascapes[/url]
    web: [url]www.stellascapes.com[/url]

  9. #9
    Join Date
    Feb 2009
    Location
    Dayton, OH
    Posts
    129
    Post Thanks / Like

    Default Re: Tap Tempo for Accurate Event Period

    I'm going to have to disagree with ya there... lights that are timed perfectly to the music are what make the show look amazing... being off by even 5 or 10ms is quite perceivable by the human eye/ear, and in my opinion, contributes to the 'amateur' feel of a lot of shows...

    A lot of artists record to a computer/metronome 'click track' keeping the tempo very rigid. I've found that if I set the event period correctly, I'll be able to throw events in anywhere in the song, and they will almost always be perfectly in time.

    Actually, being able to offset the music by +/- a few msec would be a nice feature, because depending on where it starts, your beats might be timed correctly, but just offset by 5-20 msec (throughout the whole song)

  10. #10
    Join Date
    Nov 2007
    Location
    Middle Earth
    Posts
    2,263
    Post Thanks / Like

    Default Re: Tap Tempo for Accurate Event Period

    Quote Originally Posted by JonathonReinhart View Post
    I'm going to have to disagree with ya there... lights that are timed perfectly to the music are what make the show look amazing... being off by even 5 or 10ms is quite perceivable by the human eye/ear, and in my opinion, contributes to the 'amateur' feel of a lot of shows...
    Mmm, so your tungsten lights have a ramp up/ramp down time of sub 5ms? Your leds will. But my point was not about lights being in sync with teh music. It was the music itself. Music that is 'perfectly' timed is souless.

    >A lot of artists record to a computer/metronome 'click track' keeping the tempo very >rigid.

    some do. And their music may soundlike a computer would play it. Espically those who make 99% of the music on their sequencer.. However if you are playing along to the click track, your timing is still not perfect, and there is variation between bars, and thats what gives music its grove, its soul.. Go and google this topic, theirs raging debate!

    >I've found that if I set the event period correctly, I'll be able to throw events in >anywhere in the song, and they will almost always be perfectly in time.

    Yes.. But your talking about your lights, not the music itslef

    Actually, being able to offset the music by +/- a few msec would be a nice feature, because depending on where it starts, your beats might be timed correctly, but just offset by 5-20 msec (throughout the whole song)[/QUOTE]
    [B][FONT=Arial]stell[COLOR="#FF0000"]a[/COLOR][COLOR="#008000"]s[/COLOR][COLOR="#0000CD"]c[/COLOR]apes[/FONT][/B] - LED lighting solutions for the Prosumer, Commercial and Entertainment Industries.
    Doing pixels first since 2009 with [URL="http://www.youtube.com/watch?v=GAt6A98lXQw"]just another megatree.[/URL]
    Follow us on Facebook at [url]www.facebook.com/stellascapes[/url]
    web: [url]www.stellascapes.com[/url]

Page 1 of 6 123 ... LastLast

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •