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	FORUM ON BEER, HOMEBREWING, AND RELATED ISSUES
		Digest Janitor: pbabcock at hbd.org


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Contents:
  Belgium Trip (Phil Wilcox)
  Cheap and Easy Bubble Logger (Matt)


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Date: Mon, 8 Jun 2009 22:28:23 -0400
From: Phil Wilcox <thepfhb at gmail.com>
Subject: Belgium Trip

Hi All,

Need to have some kid free time? Have somebeer bullets this summer?
A club member (Jim) Hegedus and I are going to Brussels July 27-Aug 3
and plan day trips to Trappist breweries and others along
the way.  Ticket prices are going down?!! $830+ The hotel is nice, and
the more we can put in the car the less driving we have to do...
Interested??? If we get enough people we can hire a driver...

We are staying at a four star hotel, which
runs about $118 a night. This is a REALLY nice hotel. Much better
than any of the places we stayed at during the Germany/Czech trip
I organized in 2000.  If you want to find your own hovel we can meet
up each morning and take off then...

$800 to get there
$700 to stay there
$500 to eat and drink across Belgium

$2 Grand and change for the trip of a lifetime!!!!!!!!

Anyone interested in joining us can contact me at
thepfhb at comcast dot net

Any belgian hbd'ers out there PLEASE speak up I could use your
help in getting this all arranged.

>>>Steve A--Wow awesome post as usual. Have you been to
the Dreher Brewery and museum in Budapest? Jim will
also be going there...

- --
Phil Wilcox
Poison Frog Home Brewer
Secretary - Prison City Brewers (Former Warden)
AABG, AHA, BJCP, HBD, Etc., Et. al ...


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Date: Tue, 9 Jun 2009 14:14:16 -0700 (PDT)
From: Matt <baumssl27 at yahoo.com>
Subject: Cheap and Easy Bubble Logger


Airlock bubbles are a fun and potentially useful way to
look at fermentation, and various automatic bubble-logging
systems have been devised (see HBD archives, various web
sources).  For those of us familiar with MATLAB, here's an
idea for *extremely* cheap and easy bubble logging:

1. Download FreeMAT (an open source alternative to
MATLAB--or if you have MATLAB already then use that)
2. Tape a $5 PC mini-microphone to your airlock (basically
the method Fredrik reported on HBD in the past)
3. Use wavrecord() in MATLAB/FreeMAT to capture data

With the data in FreeMAT/MATLAB you can then process and play
with it however you want.  Maybe write a script to identify
"bubble events" or else take a different approach based on
connecting a given amount of RMS to each bubble.  I haven't
tried this yet but I'll report back when I have (if nobody
beats me to it).

Matt



      


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