Hello, this is my set up right now. https://photos.google.com/share/AF1QipN ... swbG5sd0lR
I have the audio in the retropie menu set to 85 and my headphones sound fantastic with the filter. However the speakers sound really low and there is a ton of static. I can only hear the game if I hold my ear up to the speaker. Any suggestions?
This is what I put in my config.txt
# Enable audio (loads snd_bcm2835)
dtparam=audio=on
gpu_mem_256=128
gpu_mem_512=256
gpu_mem_1024=256
overscan_scale=1
audio_pwm_mode=2
dtoverlay=pwm,pin=18,func=2
The PWM mode 2 is suppose to make it sound better without the need for a filter but I still need the filter.I honestly don't know if I have it turned on or not.
Speaker really low and all I can hear is static.
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Re: Speaker really low and all I can hear is static.
Already answered this on http://www.sudomod.com/forum/viewtopic. ... =20#p40123
On you picture, A- doesn't seem to be connected to anything. It should be connected to ground (GND).
On you picture, A- doesn't seem to be connected to anything. It should be connected to ground (GND).
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Re: Speaker really low and all I can hear is static.
Sorry zeroboy I saw your reply after I made the post and couldnt figure out how to delete it.zeroboy wrote: ↑Thu Aug 03, 2017 9:26 amAlready answered this on http://www.sudomod.com/forum/viewtopic. ... =20#p40123
On you picture, A- doesn't seem to be connected to anything. It should be connected to ground (GND).
But I grounded the A- and nothing changed so I switched to this green amp and everything is working fine now with some slight static that I hope to fix by adding a 20 ohm resistor to the speaker.
https://photos.google.com/share/AF1QipO ... hIU0pRa1ZB
I tried 2 different adafruit amps and they didnt work but this cheap green one did. I have no idea why.
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Re: Speaker really low and all I can hear is static.
Also, I notice your don't have a ground on your volume wheel, maybe add a ground wire to pin 1 on the wheel. It might help with the static. It's pretty much impossible to get rid of all static on PWM audio though.firestw152 wrote: ↑Thu Aug 03, 2017 12:37 pmSorry zeroboy I saw your reply after I made the post and couldnt figure out how to delete it.zeroboy wrote: ↑Thu Aug 03, 2017 9:26 amAlready answered this on http://www.sudomod.com/forum/viewtopic. ... =20#p40123
On you picture, A- doesn't seem to be connected to anything. It should be connected to ground (GND).
But I grounded the A- and nothing changed so I switched to this green amp and everything is working fine now with some slight static that I hope to fix by adding a 20 ohm resistor to the speaker.
https://photos.google.com/share/AF1QipO ... hIU0pRa1ZB
I tried 2 different adafruit amps and they didnt work but this cheap green one did. I have no idea why.
another thing, those ada fruit amps have their own small built in pot that you can adjust with a screwdriver. Maybe it was adjusted too low...Either way, glad you got it working with the other amp.
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Re: Speaker really low and all I can hear is static.
i had this same issue while i was working on mine, i ran it to the ground strip where all the power connects to,
i thought that the issue was with my low pass filter when infact it was with the amp.
make sure you ground your lowpass filter also though,
i thought that the issue was with my low pass filter when infact it was with the amp.
make sure you ground your lowpass filter also though,
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