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3 days ago ::
May 24, 2012 - 11:30AM
#20
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I replaced the driver in the speaker cabinet, and added polyester wool inside. So now that speaker works again. I have been again working on my second, and larger, Arduino microcontroller project. I have this evening fixed intermittent display wiring faults! And I also corrected a wiring mistake on the mono audio jack output. So having controlled the hardware, I set about extending the Arduino IDE (C++ variant) code. And I am very pleased to have got the keypad operating the speech synthesiser. Thereby I can reset the synthesiser, and select its normal or demo modes. The demo mode status appears as text on the LCD. That also reports whether or not the synthesiser is speaking. And the sound output works with earphone or amplifier! The latter is domestic HI-FI, made audible by my speaker project.
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1 month ago ::
Apr 15, 2012 - 6:17PM
#19
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The speaker project died! I suspect that a wire may have dislodged from a terminal plate post.
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2 months ago ::
Mar 19, 2012 - 5:42AM
#18
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I've finished the speaker. I carpeted around the grille on the front panel. And I painted black the exposed chipboard.
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3 months ago ::
Mar 15, 2012 - 11:17AM
#17
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I have now stuck speaker carpet on all sides of the cube--save the front. And I get compliments on its appearance and sound!
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3 months ago ::
Mar 05, 2012 - 8:55AM
#16
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Now the speaker is together, wired, and it has feet and carpet on the bottom! My amplifier is pumping it with audio from my old CRT TV. And it's really put presence into the lounge room!
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3 months ago ::
Feb 25, 2012 - 5:46AM
#15
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I tested the driver with a battery. And I bought drill bits:
• 2.7 mm;
• 3.6 mm; and
• 13 mm countersink. So I have been drilling and reaming. The front and bottom panels are now screwed and glued together. And the back panel is ringed with holes.
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3 months ago ::
Feb 21, 2012 - 12:09PM
#14
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Then I read that for reproducing speech, bass should be avoided! So I'm making a sealed cabinet. I have the speaker sealed into the front panel of the 20 cm cube. And the terminal plate is sealed into the back panel. My presentation to the hackerspace, got a lot of clapping at the end!
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4 months ago ::
Jan 25, 2012 - 12:23AM
#13
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I rewired the big digital port header with a ribbon cable. And I have connected that to the keypad, LCD and speech synthesiser IC. Unfortunately, this was complicated--and so I confused the digital pin numbering in the code! I have since corrected those errors. And I programmed the Arduino to display key pressed, and the speech synthesiser's speaking and buffer statuses. I joined a woodworking club. And so I have decided that my first project there will be constructing a speaker enclosure. I did the resonance calculations for the woofer-midrange speaker. This is for the amplified output from the speech synthesiser. I intend the cabinet to be bass-reflex, to extend bass response.
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8 months ago ::
Oct 27, 2011 - 3:36AM
#12
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Today I took my current project to a community centre. And from there I took home my previous motivational electronic art exhibit. Unfortunately, the people at the community centre, regarded my current project more as a business translator, than an artwork! My new project now has its 16-key keypad working.
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8 months ago ::
Oct 23, 2011 - 8:26PM
#11
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Now ⅔ of the mantra is operating. That's nine screenfuls of bilingual text! At the electronic arts workshop, the engineers were impressed by this "Buddhist karaoke".
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