So, after about 4 weeks of work I have my perfectly working 2 channel β22 amp by Ti from AMB labs. “Here’s what happened”(Monk)

First, I had to make a list of the required parts and from the corresponding supplier. I needed parts for 4 β22 and 2 σ22 boards(power supply). THat is how my BOM spreadsheet was born: β22 BOM (Numbers и Excel формат). It took me the better part of two days to put this together and make it smarter enough to produce EZ Import lists for mouser and digikey. Of course it had a lot of errors initially and it wasn’t until finished my amp that I had everything corrected. So one day I had this at home:

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I have a lot to write about…
About a month ago we moved to a new place. Finally we are in a nice apartment with a central AC, dishwasher, washer and dryer.. like normal people!

After moving I decided to upgrade the old desktop. Agan, finally a nice computer: Intel i920, 12GB ram, ATI HD4890, 2х 21.5″ monitors (1920х1080)… soon I might get one SSD but they are quite pricey so I’ll wait a bit.

I got into audio DIY. So far I’ve made
cMoy (They say everyone in DIY must make one of these. Almost like a rite of passage):

2 AMB Mini3 portable headphone amps (no pics)

1 AMB gamma1 full++ и 1 AMB gamma2:

I also just finished a quite nice spdif switch (inspired by linuxworks spdif switch) that has 3 spdif optical ins, 1 optical out, ir for remote, arduino controller and a 2×16 character lcd. Still needs to be cased:

I also made the diyMod on my nano (short the output from the dac to the lineout and put two Black Gate NX caps).

I’m planning a couple of more things: a Starving Student tube amp for the desk, probably a pair of uFonkens (small bookshelf speakers) for my computer, and the grand finale: betta 22 amp to drive my headphones and my uFonkens.

I went fishing a few times as well, but didn’t catch anything

Also, my flan recipe is ready. I will publish it as well.

We got a small camera, that I can carry with me for quick P&S photos. I figured sometimes it is too much hassle to take the dslr out and set it up just for a quick photo….

Recently I got a collection of bulgarian songs with very nice filenames but no ID3 tags. So I wrote a simple script that reads a file with name like so: “trackN artist – song.mp3″, converts it to cyrillic and writes the tags.

The format of the filename can be easily changed by modifying the regex and you can add other tags as well. I knew in advance that my compilation will have 500 songs, that’s why the track numbers are set to “$track/500″. At this point is is quite custom script for my needs but can be easily changed to translate to other languages and modify other tags.

The cyrillic conversion is not perfect, but I’m too lasy to fix it as it isn’t that bad either.

1. #!/usr/bin/perl -w
2. use Data::Dumper;
3. use MP3::Tag;
4. use Encode;
5.  
6. my $filename = $ARGV[0];
7. my $artist;
8. my $track;
9. my $song;
10.  
11. print "Working on $filename\n";
12.  
13. @cyr = ('ч','щ','ш','ю','а','б','в','г','д','е','ж','з','и','й','к'
14. ,'л','м','н','о','п','р','с','т','у','ф','х','ц','ъ','ь','я',
15. 'у','Ч','Щ','Ш','Ю','А','Б','В', 'Г','Д','Е','Ж','З','И','Й',
16. 'К','Л','М','Н','О','П','Р','С','Т','У','Ф','Х','Ц','Ъ','Ь','Я','У');
17.  
18. @lat = ('ch','sht','sh','iu','a','b','v','g','d','e','j','z','i','j',
19. 'k','l','m','n','o','p','r','s','t','u','f','h','c','y','y',
20. 'q','w','Ch','Sht','Sh','Iu','A','B','V', 'G','D','E','J','Z',
21. 'I','J','K','L','M','N','O','P','R','S','T','U','F','H','C','Y','Y','Q','W');
22.  
23. sub trim($)
24. {
25. my $string = shift;
26. $string =~ s/^\s+//;
27. $string =~ s/\s+$//;
28. return $string;
29. }
30.  
31. $temp=$filename;
32. $temp=~s/\.mp3//gi;
33. if ($temp =~ m/([\d]{3})\s+(.+\s*.+)\s?-\s?(.+\s?.+)/)
34. {
35. $track = $1;
36. $artist = $2;
37. $song = $3;
38. }
39. my $retext = "$track $artist - $song";
40. print $retext."\t";
41. $i = 0;
42. while($i < @lat) {
43. $l = $lat[$i];
44. $c = $cyr[$i];
45. $artist=~s/$l/$c/g;
46. $song=~s/$l/$c/g;
47.  
48. #print $l."\t".$c."\n";
49. $i++;
50. }
51.  
52.  
53. $songname = "$track ".trim($artist)." - ".trim($song);
54. print $songname."\n";
55.  
56. $mp3 = MP3::Tag->new($filename);
57. $mp3->get_tags;
58. my $id3v2 = $mp3->new_tag("ID3v2");
59. $id3v2->add_frame('TRCK', "$track/500");
60. $id3v2->add_frame('TIT2', decode('UTF-8',$song));
61. $id3v2->add_frame('TPE1', decode('UTF-8',$artist));
62. $id3v2->write_tag;
63.