[Lab] another hair brained project! clave!

Tue Oct 5 13:06:56 EDT 2010

Check out this example. The conga are pretty prominent so that might be a
good thing to sync up with for this music style.

http://www.youtube.com/watch?v=NNAQte85ZGM

>
> I agree that music is a complex thing. Obviously computers can't do better
> at interpreting it than our brains. If it weren't like that our brains would
> not love Salsa music so much. :)
>
> That's why I'm actually finding this exploration so much fun.
>
> Check out this cool rumba speed improvisation
> http://www.youtube.com/watch?v=ybGkwmmK9cM
>
> <http://www.youtube.com/watch?v=ybGkwmmK9cM>The clave is very slow. It's
> fairly apparent that it has a sort of priority over other instruments since
> the rumba clave is a fixed thing. If it varies at all, it's very
> destructive.
>
> In this project, the thing doesn't really have to get it right all the
> time. In fact, I'm sure that it would come up with comical attempts at
> adding clave in many silly places.
>
> In fact, I think it would make sense to put many rhythms into it and have
> it try to improvise.
>
> But the real objective is to try to get it to locate the beat and add a
> rumba clave. The rest is just icing...
>
>
>
> On Tue, Oct 5, 2010 at 12:27 PM, Tom Burns <tom.i.burns at gmail.com> wrote:
>
>> Having used a ton of different djing and music production software I can
>> tell you that it's an open-ended problem because no software does it
>> perfect.  Some do it well, and most for example handle 4/4 dance music well
>> due to the obvious kick drum.  If you want it to be relatively accurate I
>> suggest having a "tap tempo" button to override whatever it thinks is
>> correct, not sure if that defeats the purpose but it might be a good sanity
>> saver when the thing freaks out :)
>>
>>
>> On Tue, Oct 5, 2010 at 12:24 PM, Darcy Whyte <darcy at siteware.com> wrote:
>>
>>> I am in two minds about beat detection.
>>>
>>> On one hand, I was figuring that for a majority of music, if you divided
>>> the music into 8 beats, then found the strongest, you'd find the 1 or the 2
>>> (which is good enough). Then it would play to any 4/4 type music but would
>>> also play for other patterns. (Would be disastrous in a Waltz. :))
>>>
>>> On the other hand, I guess if we filter out some bands, perhaps we could
>>> actually detect the tumbadora open strikes (on 4 and the half right after).
>>> From my perception, this time period is fairly quiet with the rest of the
>>> instruments since this is the famous "Salsa pause" on 4 (and also the "cha
>>> cha cha" in cha cha).
>>>
>>> In this case, the device may only respond to music that has this
>>> characteristic which would include things like Salsa, Cha Cha and so forth.
>>>
>>>
>>>
>>>
>>>
>>> On Tue, Oct 5, 2010 at 11:46 AM, Tom Burns <tom.i.burns at gmail.com>wrote:
>>>
>>>> Using multiband EQing you will get better results in your beat
>>>> detection.  IE notch filter around 200hz or so and then look for amplitude
>>>> peaks to find the bass drum rhythm.  You can find a chart of the eq bands
>>>> related to each instrument, it will vary between styles and eras of music.
>>>>
>>>> On Tue, Oct 5, 2010 at 11:42 AM, Darcy Whyte <darcy at siteware.com>wrote:
>>>>
>>>>>
>>>>>
>>>>> I am making a piece of art work which will detect music beat and then
>>>>> play the clave to the music.
>>>>>
>>>>> If you are unfamiliar with clave, here is a video to explain it:
>>>>>
>>>>> http://www.youtube.com/watch?v=9LWxIqnbxWQ
>>>>>
>>>>> The particular rhythm I want is the reverse (or forward) rumba clave
>>>>> (both common in Salsa and rumba music).
>>>>>
>>>>> I was thinking that processing.org and an arduino could be used to
>>>>> listen in on music and determine the tempo by finding equidistant peaks of
>>>>> volume. Attempt to group the beats into 8 and determine the strongest of 8.
>>>>> Assign it as beat 1. Then strike the Clave on 1, 2.5, 4, 6 and 7. Clave
>>>>> strike could be a solenoid, or perhaps a DC motor.
>>>>>
>>>>> Any comments or ideas of the technology?
>>>>>
>>>>>
>>>>>
>>>>> On Tue, Oct 5, 2010 at 11:24 AM, Emily Daniels <
>>>>> emily.daniels at gmail.com> wrote:
>>>>>
>>>>>>
>>>>>>
>>>>>> I'm very excited too! Guy I expect to see ALL of your awesome robot
>>>>>> creations there!!
>>>>>>
>>>>>> Emily
>>>>>>
>>>>>>
>>>>>> On Tue, Oct 5, 2010 at 10:45 AM, Darcy Whyte <darcy at siteware.com>wrote:
>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> Wohoo!
>>>>>>>
>>>>>>> Can't wait!
>>>>>>>
>>>>>>> I had an application to present the Squirrel in within an hour of the
>>>>>>> original event announcement.
>>>>>>>
>>>>>>>
>>>>>>> Darcy
>>>>>>>
>>>>>>> On Tue, Oct 5, 2010 at 10:02 AM, Mordechai Brodt <mbrodt at hotmail.com
>>>>>>> > wrote:
>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>> http://artengine.ca/news/2010/makerfaire-en.php
>>>>>>>>
>>>>>>>> <http://artengine.ca/news/2010/makerfaire-en.php> Mini-Maker Faire12
>>>>>>>> – 6PM
>>>>>>>> November 6th and 7th, 2010
>>>>>>>> Arts Court, 2 Daly Ave., Ottawa, ON  K1N 6E2 (MAP<http://www.google.com/maps?f=q&source=s_q&hl=en&geocode=&q=2+Daly+Ave.+Ottawa,+ON++K1N+6E2&sll=45.425502,-75.689052&sspn=0.021656,0.038581&ie=UTF8&hq=&hnear=2+Daly+Ave,+Ottawa,+Ottawa+Division,+Ontario+K1N+9M7,+Canada&z=16>
>>>>>>>> )
>>>>>>>> Free
>>>>>>>>
>>>>>>>> *"Considering that some of the greatest leaps forward in American
>>>>>>>> technological history have been scrappy homebrews (Apple Computer was a
>>>>>>>> literal garage startup), it's really kind of exciting to think that, given
>>>>>>>> its explosive growth, the Maker Faire might well help along an invention or
>>>>>>>> two that's truly important." – Advertising Age*
>>>>>>>>
>>>>>>>> The innovation laced through the capital region is impressive, and
>>>>>>>> this first ever Mini-Maker Faire is a chance to connect creative people from
>>>>>>>> all over our region in a celebration of the DIY spirit. A Mini-Maker Faire
>>>>>>>> brings together families and individuals who celebrate Arts, Crafts,
>>>>>>>> Engineering, Food, Music, Sustainability, and Science and those who embrace
>>>>>>>> the Do-It-Yourself (DIY) spirit. At Maker Faire, the focus is on the process
>>>>>>>> of making – not just the finished product.
>>>>>>>>
>>>>>>>> The real story here is the curiosity, vibrancy, and passion of the
>>>>>>>> Makers themselves, the people who comprise the rapidly emerging DIY
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>>>>>>>>
>>>>>>>>
>>>>>>>> Mordechai
>>>>>>>>
>>>>>>>>
>>>>>>>
>>>>>>
>>>>>>
>>>>>> --
>>>>>> Emily Daniels | emilydaniels.com | @emdaniels | awesomefoundation.org
>>>>>>
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>>>>>
>>>>>
>>>>>
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>
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