Non-OEM Audio Guide - No DMG Parts

Various user-contributed guides for hardware-related things
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Kilren
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Re: Non-OEM Audio Guide - No DMG Parts

Post by Kilren » Mon Jun 27, 2016 4:28 pm

Villemus wrote:How is the USB part wired to the Pi-zero? Can you still have an external USB connector for hubs and controllers?
I solder the usb DAC to a USB hub which is soldered to the Pi0

USB Dac > Hub > Pi

Villemus
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Re: Non-OEM Audio Guide - No DMG Parts

Post by Villemus » Sat Jul 02, 2016 12:44 am

Kilren wrote:
Villemus wrote:How is the USB part wired to the Pi-zero? Can you still have an external USB connector for hubs and controllers?
I solder the usb DAC to a USB hub which is soldered to the Pi0

USB Dac > Hub > Pi
Thanks! were you able to figure out how to fix the 1/4 turn volume issue?

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Kilren
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Re: Non-OEM Audio Guide - No DMG Parts

Post by Kilren » Sat Jul 02, 2016 1:26 am

Villemus wrote:
Kilren wrote:
Villemus wrote:How is the USB part wired to the Pi-zero? Can you still have an external USB connector for hubs and controllers?
I solder the usb DAC to a USB hub which is soldered to the Pi0

USB Dac > Hub > Pi
Thanks! were you able to figure out how to fix the 1/4 turn volume issue?
No, but I didn't try. I figured the speaker was all or nothing, and if I needed to be quiet, I'd use headphones (which has full pot rotation sensitivity). If you think of a solution, let me know

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Ganreizu
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Re: Non-OEM Audio Guide - No DMG Parts

Post by Ganreizu » Sat Jul 30, 2016 6:13 pm

@kilren Do you have a better diagram of which pins are which for the replacement headphone jack? I have the same one you do.

Edit: I googled and found one. :]

Image

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Kilren
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Re: Non-OEM Audio Guide - No DMG Parts

Post by Kilren » Sat Jul 30, 2016 11:34 pm

Ganreizu wrote:@kilren Do you have a better diagram of which pins are which for the replacement headphone jack? I have the same one you do.

Edit: I googled and found one. :]
Sorry mate, it's been crazy around here. Glad you found one.

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Re: Non-OEM Audio Guide - No DMG Parts

Post by Ganreizu » Sun Jul 31, 2016 1:04 am

Kilren wrote:Sorry mate, it's been crazy around here. Glad you found one.
Nahh it's all good you do you. I think it helps a lot for this guide to have that diagram.

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Re: Non-OEM Audio Guide - No DMG Parts

Post by Qbopper » Fri Aug 12, 2016 7:17 pm

Hey, can you provide an image of what the physical wiring looks like? I'm new to soldering/electronics and I'd really like to not mess up with my kit I got... :s

I have a GBA speaker and a cheap $5 USB audio adapter from adafruit - would I just take that apart and plug in the USB end, then wire it to the speaker? Or am I misunderstanding the purpose of using it?

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Re: Non-OEM Audio Guide - No DMG Parts

Post by jazzy » Mon Aug 15, 2016 3:43 am

Hi guys, i think i've gone and ordered the wrong POT, the ones i bought have 3 pins, instead of 5. Are 5 pins the way to go? Is there some way of using the 3 pin potentiometer (i've ordered helders all in one board).

Also the use of ferrite beads i've read can help with noise distortion? Can anyone recommend any suppliers in the UK?
Thanks

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Re: Non-OEM Audio Guide - No DMG Parts

Post by Treguard » Mon Sep 19, 2016 3:21 pm

Kilren wrote:@dirtybeagles I know you've been waiting for this.
Thanks for the guide. Am I right in thinking that this just sends a mono signal to the headphone jack with just the Left + and - being connected? Thanks :)

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Re: Non-OEM Audio Guide - No DMG Parts

Post by WoodMill » Sat Sep 24, 2016 11:41 am

Went to Fry's to buy all the stuff to make my own low-pass filter. They had all the pieces except for one. I was still going to buy everything else. So was walking around the store, and came across this Sabrent USB Sound card for $8. Remember Wermy said people were using it, so I dropped all my parts to make my own because the cost was going to end up being more than this USB option. I'd be able to make 100 of them, but only just needed one.

So my question, I see you use a different amp, will the AdaFruit one still work? Is it the same concept as the one you use? Already purchased the Adafruit one.
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