Sound not working

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xSP
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Sound not working

Post by xSP » Sat Sep 09, 2017 1:17 pm

So I am trying to get audio working on my Raspberry Pi Zero W. I am following this guide and am pretty sure I have done everything correctly.(http://www.sudomod.com/forum/viewtopic.php?f=22&t=480) Is there something else I need to do in retropie to get the audio to work? I also have this usb sound card(http://www.ebay.ca/itm/5V-USB-Powered-P ... 2749.l2649) that I could use instead. I can post pictures of my wiring if need be. Any help or tips is appreciated. Thanks.

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Re: Sound not working

Post by darthwolf » Sat Sep 09, 2017 1:31 pm

Pictures always help. Which pin are you using for output and what amplifier? Are you using a low pass filter? Did you add dtoverlay function to your config.txt?

xSP
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Re: Sound not working

Post by xSP » Sat Sep 09, 2017 2:53 pm

darthwolf wrote:
Sat Sep 09, 2017 1:31 pm
Pictures always help. Which pin are you using for output and what amplifier? Are you using a low pass filter? Did you add dtoverlay function to your config.txt?
Im using pin 13 for left audio and pin 18 for right audio. I've made a low pass filter following the guide I linked above. Here's the amplifier im usinghttp://www.dx.com/p/mini-digital-3w-3w- ... bRUi8iGOUk I added dtoverlay to the config.txt.
I can post some pictures later today aswell.

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Re: Sound not working

Post by xSP » Sat Sep 09, 2017 5:25 pm

darthwolf wrote:
Sat Sep 09, 2017 1:31 pm
Pictures always help. Which pin are you using for output and what amplifier? Are you using a low pass filter? Did you add dtoverlay function to your config.txt?
Here's some pictures, hopefully their good enough.
https://imgur.com/a/mBQ81

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Re: Sound not working

Post by darthwolf » Sun Sep 10, 2017 4:04 pm

Ok, as it seems to me that your pin 13 and pin 18 are the physical pins. You need to use physical pin 12 (bcm 18, PWM0) and physical pin 33 (bcm13, PWM1) to get the sound out.

Check this link for pinout https://pinout.xyz/pinout/pin12_gpio18#

xSP
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Re: Sound not working

Post by xSP » Sun Sep 10, 2017 5:12 pm

darthwolf wrote:
Sun Sep 10, 2017 4:04 pm
Ok, as it seems to me that your pin 13 and pin 18 are the physical pins. You need to use physical pin 12 (bcm 18, PWM0) and physical pin 33 (bcm13, PWM1) to get the sound out.

Check this link for pinout https://pinout.xyz/pinout/pin12_gpio18#
Just tried that and no luck. I may try re-building the low pass filter in hopes that it fixes the problem.

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Re: Sound not working

Post by xSP » Tue Sep 12, 2017 8:21 pm

Built another low pass filter and got no sound. I've also tried it on a different raspberry pi and got no sound. Anyone have any suggestions?

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firestw152
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Re: Sound not working

Post by firestw152 » Tue Sep 12, 2017 11:01 pm

xSP wrote:
Tue Sep 12, 2017 8:21 pm
Built another low pass filter and got no sound. I've also tried it on a different raspberry pi and got no sound. Anyone have any suggestions?
Try this

https://photos.google.com/share/AF1QipO ... hIU0pRa1ZB

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Re: Sound not working

Post by darthwolf » Wed Sep 13, 2017 2:06 am

I suggest you just connect audio only to the amp and the speaker then start troubleshooting from there. Test with another device, like a phone or stereo.

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Re: Sound not working

Post by xSP » Sat Sep 16, 2017 3:39 pm

darthwolf wrote:
Wed Sep 13, 2017 2:06 am
I suggest you just connect audio only to the amp and the speaker then start troubleshooting from there. Test with another device, like a phone or stereo.
I've connected the amp and speaker to a Raspberry Pi 3 and have gotten sound out of it, so the amp and speaker are working.

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