Category Archives: APKaudio
Analog out… that means… what….?

AES – SC-05-05 – X-152 – Call for participation
http://www.aes.org/standards/blog/2020/3/new-project-x152
The goal / target / deliverable is a template that manufacturers could include in their manuals that explain the characteristics of the signals leaving devices and the characteristics of signals a device is capable of receiving. Having these parameters summarized in a consistent way will help users integrate equipment.
AES STANDARDS: SC-05-05
Working Group on Grounding and EMC Practices
Group Scope: The scope of the SC-05-05 Working Group on Grounding and Electromagnetic Compatibility Practices shall include, within the bounds of the scope of SC-05, all practices affecting usage and performance of audio hardware, with respect to the susceptibility of the signals it carries to effects such as noise and cross-talk due to the manner of its connection and construction, and the effects of its signals on other hardware and systems in its vicinity. It shall not set standards for personal safety with regard to such connections and construction but shall keep safety considerations in mind in its recommendations.
The Saskatoon Shop
Adding A Cross Cut slide to an Elgin Hardinge Lathe








Bridgeport Lego

Phase 3…





Thinking about it…

Elgin Harding Lathe – Cross Slide Teardown
Yes, that is a huge absorbent soft diaper used to contain everything.




Engraving initials into a brass Hammer




Tool post and Holder


Piston Type Tool Post & Tool Holder Sets For 12″ Lathe
Complete with 5 quick change tool holders
Turning and facing: 3/16″ – 1/2″ tool bit
Boring, turning and facing: 7/16″ shank
Heavy duty boring bar: 5/8″ shank
Knurling, turning and facing: 3/16″ – 1/2″ tool bit
Easy tool set up to speed production
Weight: 5.5kg.
https://www.busybeetools.com/products/tool-post-quick-change-for-12in-lathe.html





Microphone Description Protocol
This is an idea about a byte efficient protocol that describes the contents of an audio channel. At first, you may laugh…
It uses UNICODE characters as a method to condense the language needed to describe something in the field. There are Emoji for so many generic audio terms.
An Emoji is 4 bytes to encode using UTF-8.
Click here for a full list of Unicode Icons and their associated Hex Values
Click here for a description on how emojis are interoperable and how they work (50 page read
Framework: Emoji followed by a description repeat. n feeds n+1
No Emoji = end of sequence
Signal Path is in the order it is displayed
- 😀 Grinning Face – Who is the person?
- 📛 Name Badge – What is their role in the production?
- ℹ️ Information – Something specific about that person or their role
- ⚠️ Warning – a heads up about that person or their role
To describe a person at a microphone, their role and info about the microphone and how it’s connected to the system a series of Emojis followed by text can be concatenated
EXAMPLE CONCATINATION:
🆔 PRODUCTION ID ⌚ PTP TIME STAMP😃NAME📛FUNCTIONℹINFORMATION⚠WARNING🎤MIC MODEL👻PHANTOM POWER🔌CONNECTION N🔌CONNECTION N+1🎚SENSITIVITY
Using this concatenation you can build up descriptions of the source
EXAMPLE STRING:
🆔 20191115⌚1163594296.344003000😃Axel📛Lead VocalℹBlonde hair glasses⚠Loves to grip mic🎤SM 58👻no🔌SNAKE 34🔌Channel 2🎚-60📗preset EQ
😃Security Guard 📛Position near the gate🎤SM58 👻no 🔌SNAKE 34🔌Channel 2🎚-60
Example of wireless microphone
😃📛Person 3🎤SHURE SM58📡 565.325 🔋 0:33🎚-10
📛RX Person 3📻565.325 🔌SNAKE 34-2
Example of a guitar and the cabinet
😃Terry📛Rhythm Guitar Left 🎸Les Paul 🧲 P80📢Marshall 412🎙C414👻yes 🎚-50 🔌SNAKE 34🔌Channel 2
How to create a mix
A mix is made of a web of sources at a particular level
🎨Mix 1🕸️ Axel🎚 -10🕸️ Person 2🎚 -10🕸️ Person 3🎚 -10🕸️ Person 4🎚 -10🕸️ Person 5🎚 -10
Give that mix to someone
🎨Mix 1🎚 -20 🎧WB13-3😃person 1
Headphones and on the person who receives the mix at a particular level
Use an EQ as a preset to insert
📗preset EQ📈 80 🎚 -2 📊 4.5k 🇶 1🎚 -2 📉 13k 🎚 -2
I did a quick test in Google sheets and it does parse the UNICODE as strings

AUDIO RELATED
- 🎤 Microphone
- 🎙️ Studio Microphone
- 🎚 Level Slider
- 🎛 Control Knobs
- 🔌 Electric Plug
- 🎧 Headphone
- 🔈 Speaker Low Volume
- 🔇 Muted Speaker
- 🔉 Speaker Medium Volume
- 🔊 Speaker High Volume
- 📻 Radio
- 📞 Telephone Receiver
- 🕨 Right Speaker
- 🕩 Right Speaker with One Sound Wave
- 🕪 Right Speaker with Three Sound Waves
- 💻 Laptop
- 🖥 Desktop Computer
DIRECTION
- ⬆ Up Arrow
- ↗ Up-Right Arrow
- ➡ Right Arrow
- ↘ Down-Right Arrow
- ⬇ Down Arrow
- ↙ Down-Left Arrow
- ⬅ Left Arrow
- ↖ Up-Left Arrow
- ↕ Up-Down Arrow
- ↔ Left-Right Arrow
- ↩ Right Arrow Curving Left
- ↪ Left Arrow Curving Right
- ⤴ Right Arrow Curving Up
- ⤵ Right Arrow Curving Down
- 🔃 Clockwise Vertical Arrows
- 🔄 Counterclockwise Arrows Button
- 🔙 Back Arrow
- 🔚 End Arrow
- 🔛 On! Arrow
- 🔜 Soon Arrow
- 🔝 Top Arrow
Hardinge Lathe 204 frame Motor
Looking to replace the 204 frame motor I watched my favorite teach on the subject
and that pointed me to the plate on the motor I have

Reading deeper into this, this is an OLD style of motor frame. 204 Stopped being used in 1953… Of course, mine is a discontinued motor frame…


Looking more at this I see the 203 and the 204 frames are similar it’s the screw mounting width that is different. I think an adapter plate could work. The only dimension that matter is D and U. U is 3/4″ so the center of the motor must be 5″ from the bottom of the plate. Obviously P must be smaller or equal. Watch out for the boxes that stick off the side for the wiring to enter.
LOOKING AT A MODERN NEMA CHART:

All the newer motors have 7/8 shaft meaning the pully will also need to be changed. The 145T looks interesting… Some shopping:

There is hope.

there are charts for the motor mount brackets:

Gorton P1-2 – pantomill – CNC conversation and the 16:1 precision advantage

Metal tools in a woodshop…
Wood dust and metal tools are enemies. The only way to keep the metal tools hapy ks to isolate them. I needed a way to them in their happy oiled up domain. I decided against cupboards and favoured Air tight drawers. There is a need for a gasket… but by design they should work without it when properly pushed back.
This is what i came up with.
ELGIN Hardinge Super precision lathe – Part 2 – Three-phase two-speed constant torque motor with reverse
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:
1k on scope
Books of 2015 – Supplemental and future reading and reference
Adding to the book list for 2015. Lots learned and so much more to learn!