Category Archives: Science
Lixer tape measure calibration Gage block
Deleuze – Trees Vs Rhizomes
Quote
Most impressive Penny and Giles Fader design
New book! – Barry Klein – electronic music circuits
Metric system – better by a thousand
Cutting ✂️ stranded wire – close up
Kids and mixer
Tektronix 577 variac rod
Tektronix curve tracer – 577
Owls making no sound in flight
World Stage in AES Standards Webinar Series
This is exciting… I’m presenting in September
In the fourth webinar on September 20, Anthony Kuzub will discuss the new AES72 standard from SC-05-02 for transporting either analog or digital audio over quad twisted pair cable, including documentation of RJ45 connector pin-outs.
Http://www.aes.org/blog/2021/3/audio-standards-and-interoperability-in
Cleaning a Magnetic USB charger connection
SC-05-05 – What is a balanced transmitter?
Mitutoyo – Machinist tool maker microscope
Not your Grandfather’s Workbench – SMPTE presentation
Arduino Project – Digitally Controlled Analog Surround Sound Panning – Open Source
For your enjoyment:
Digitally Controlled Analog Surround Sound Panning
Presentation:
Circuit Explination:
Presentation documents:
0 – TPJ – Technical Presentation
0 – TPJ556-FINAL report DCASSP-COMPLETE
0 – TPJ556-FINAL report DCASSP-SCHEMATICS V1
Project Source Code:
Books of 2015 – Supplemental and future reading and reference
Adding to the book list for 2015. Lots learned and so much more to learn!
Sound Guy XMAS!!!!! Rigol DS1054Z 4 Channel Oscilloscope –
Xmas is coming! As we know sound guys are the most difficult people to buy for. Over the last few year I’ve posted some suggestions, here is day 1!
Day 1 – Rigol DS1054Z 4 Channel Oscilloscope
This came to my attention from the EEVBLOG https://www.youtube.com/watch?v=ETCOhzU1O5A love this guy.
It’s an awesome price for a very powerful little machine. Include probes and USB cable.
For $507 Canadian Electro Meter in pickering can hook you up!
On Compressing the English Language
Someone picked my brain the other day looking for a technique to compress language files.
After walking away to think about it… my method was to re-order the ASCII code to the letters by their frequency and the most common words by their frequency.
Where lowercase e is stored as an ASCII value using 1 byte
ASCII e = 0x61 = 0b1100001 = 7 bits
vs
APK e = 0x1 = 1 bit
… this method stores an E in 1 bit. This is similar to the Huffman Code with the addition of whole words being included in the code.
For example:
“because” is the 94th most used word in the english language and in this method is stored in 7 bits.
I don’t know if this has been done before… but I would imagine it could compress Language files substantially.
I have thought about a third addition of using the most used 2 or three letter combinations commonly used.
APK ORDER | APK | LET FREQ | WORD FEQ | APK BIN | APK HEX | APK BITS USED |
0 | space | 0 | 0 | 1 | ||
1 | e | 12.70% | 1 | 1 | 1 | |
2 | t | 9.06% | 10 | 2 | 2 | |
3 | a | 8.17% | 11 | 3 | 2 | |
4 | o | 7.51% | 100 | 4 | 3 | |
5 | i | 6.97% | 101 | 5 | 3 | |
6 | n | 6.75% | 110 | 6 | 3 | |
7 | s | 6.33% | 111 | 7 | 3 | |
8 | h | 6.09% | 1000 | 8 | 4 | |
9 | r | 5.99% | 1001 | 9 | 4 | |
10 | d | 4.25% | 1010 | A | 4 | |
11 | l | 4.03% | 1011 | B | 4 | |
12 | c | 2.78% | 1100 | C | 4 | |
13 | u | 2.76% | 1101 | D | 4 | |
14 | m | 2.41% | 1110 | E | 4 | |
15 | w | 2.36% | 1111 | F | 4 | |
16 | f | 2.23% | 10000 | 10 | 5 | |
17 | g | 2.02% | 10001 | 11 | 5 | |
18 | y | 1.97% | 10010 | 12 | 5 | |
19 | p | 1.93% | 10011 | 13 | 5 | |
20 | b | 1.49% | 10100 | 14 | 5 | |
21 | v | 0.98% | 10101 | 15 | 5 | |
22 | k | 0.77% | 10110 | 16 | 5 | |
23 | j | 0.15% | 10111 | 17 | 5 | |
24 | x | 0.15% | 11000 | 18 | 5 | |
25 | q | 0.10% | 11001 | 19 | 5 | |
26 | z | 0.07% | 11010 | 1A | 5 | |
27 | the | 1 | 11011 | 1B | 5 | |
28 | be | 2 | 11100 | 1C | 5 | |
29 | to | 3 | 11101 | 1D | 5 | |
30 | of | 4 | 11110 | 1E | 5 | |
31 | and | 5 | 11111 | 1F | 5 | |
32 | a | 6 | 100000 | 20 | 6 | |
33 | in | 7 | 100001 | 21 | 6 | |
34 | that | 8 | 100010 | 22 | 6 | |
35 | have | 9 | 100011 | 23 | 6 | |
36 | I | 10 | 100100 | 24 | 6 | |
37 | it | 11 | 100101 | 25 | 6 | |
38 | for | 12 | 100110 | 26 | 6 | |
39 | not | 13 | 100111 | 27 | 6 | |
40 | on | 14 | 101000 | 28 | 6 | |
41 | with | 15 | 101001 | 29 | 6 | |
42 | he | 16 | 101010 | 2A | 6 | |
43 | as | 17 | 101011 | 2B | 6 | |
44 | you | 18 | 101100 | 2C | 6 | |
45 | do | 19 | 101101 | 2D | 6 | |
46 | at | 20 | 101110 | 2E | 6 | |
47 | this | 21 | 101111 | 2F | 6 | |
48 | but | 22 | 110000 | 30 | 6 | |
49 | his | 23 | 110001 | 31 | 6 | |
50 | by | 24 | 110010 | 32 | 6 | |
51 | from | 25 | 110011 | 33 | 6 | |
52 | they | 26 | 110100 | 34 | 6 | |
53 | we | 27 | 110101 | 35 | 6 | |
54 | say | 28 | 110110 | 36 | 6 | |
55 | her | 29 | 110111 | 37 | 6 | |
56 | she | 30 | 111000 | 38 | 6 | |
57 | or | 31 | 111001 | 39 | 6 | |
58 | an | 32 | 111010 | 3A | 6 | |
59 | will | 33 | 111011 | 3B | 6 | |
60 | my | 34 | 111100 | 3C | 6 | |
61 | one | 35 | 111101 | 3D | 6 | |
62 | all | 36 | 111110 | 3E | 6 | |
63 | would | 37 | 111111 | 3F | 6 | |
64 | there | 38 | 1000000 | 40 | 7 | |
65 | their | 39 | 1000001 | 41 | 7 | |
66 | what | 40 | 1000010 | 42 | 7 | |
67 | so | 41 | 1000011 | 43 | 7 | |
68 | up | 42 | 1000100 | 44 | 7 | |
69 | out | 43 | 1000101 | 45 | 7 | |
70 | if | 44 | 1000110 | 46 | 7 | |
71 | about | 45 | 1000111 | 47 | 7 | |
72 | who | 46 | 1001000 | 48 | 7 | |
73 | get | 47 | 1001001 | 49 | 7 | |
74 | which | 48 | 1001010 | 4A | 7 | |
75 | go | 49 | 1001011 | 4B | 7 | |
76 | me | 50 | 1001100 | 4C | 7 | |
77 | when | 51 | 1001101 | 4D | 7 | |
78 | make | 52 | 1001110 | 4E | 7 | |
79 | can | 53 | 1001111 | 4F | 7 | |
80 | like | 54 | 1010000 | 50 | 7 | |
81 | time | 55 | 1010001 | 51 | 7 | |
82 | no | 56 | 1010010 | 52 | 7 | |
83 | just | 57 | 1010011 | 53 | 7 | |
84 | him | 58 | 1010100 | 54 | 7 | |
85 | know | 59 | 1010101 | 55 | 7 | |
86 | take | 60 | 1010110 | 56 | 7 | |
87 | people | 61 | 1010111 | 57 | 7 | |
88 | into | 62 | 1011000 | 58 | 7 | |
89 | year | 63 | 1011001 | 59 | 7 | |
90 | your | 64 | 1011010 | 5A | 7 | |
91 | good | 65 | 1011011 | 5B | 7 | |
92 | some | 66 | 1011100 | 5C | 7 | |
93 | could | 67 | 1011101 | 5D | 7 | |
94 | them | 68 | 1011110 | 5E | 7 | |
95 | see | 69 | 1011111 | 5F | 7 | |
96 | other | 70 | 1100000 | 60 | 7 | |
97 | than | 71 | 1100001 | 61 | 7 | |
98 | then | 72 | 1100010 | 62 | 7 | |
99 | now | 73 | 1100011 | 63 | 7 | |
100 | look | 74 | 1100100 | 64 | 7 | |
101 | only | 75 | 1100101 | 65 | 7 | |
102 | come | 76 | 1100110 | 66 | 7 | |
103 | its | 77 | 1100111 | 67 | 7 | |
104 | over | 78 | 1101000 | 68 | 7 | |
105 | think | 79 | 1101001 | 69 | 7 | |
106 | also | 80 | 1101010 | 6A | 7 | |
107 | back | 81 | 1101011 | 6B | 7 | |
108 | after | 82 | 1101100 | 6C | 7 | |
109 | use | 83 | 1101101 | 6D | 7 | |
110 | two | 84 | 1101110 | 6E | 7 | |
111 | how | 85 | 1101111 | 6F | 7 | |
112 | our | 86 | 1110000 | 70 | 7 | |
113 | work | 87 | 1110001 | 71 | 7 | |
114 | first | 88 | 1110010 | 72 | 7 | |
115 | well | 89 | 1110011 | 73 | 7 | |
116 | way | 90 | 1110100 | 74 | 7 | |
117 | even | 91 | 1110101 | 75 | 7 | |
118 | new | 92 | 1110110 | 76 | 7 | |
119 | want | 93 | 1110111 | 77 | 7 | |
120 | because | 94 | 1111000 | 78 | 7 | |
121 | any | 95 | 1111001 | 79 | 7 | |
122 | these | 96 | 1111010 | 7A | 7 | |
123 | give | 97 | 1111011 | 7B | 7 | |
124 | day | 98 | 1111100 | 7C | 7 | |
125 | most | 99 | 1111101 | 7D | 7 | |
126 | use | 100 | 1111110 | 7E | 7 |