HOMEBREW Digest #5566 Tue 09 June 2009

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  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 ... Return to table of contents
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 Return to table of contents
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