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    Volume control while in a game?

    Scheduled Pinned Locked Moved General Discussion and Gaming
    gpio volume
    19 Posts 3 Posters 6.5k Views
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    • josephchrzempiecJ
      josephchrzempiec
      last edited by

      You are correct i have a left and right channel speakers but each channel has it's own amp. It is in Stereo. Not mono. But the audio is not the problem. The problem is controlling the volume while in the game sense there is no volume controls on the amp.

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      • monstermadeofmanM
        monstermadeofman
        last edited by

        What I'm saying is you don't need individual amps for Left and Right. If you follow this guide it will give you a single filter/amp for both channels and enable you to put a volume control pot on this that will allow to control the volume in analog as apposed to digital. Meaning you have volume control whenever.

        Not all those who wander are lost

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        • josephchrzempiecJ
          josephchrzempiec
          last edited by

          Oh I'm totally sorry i didn't understand. Now i get what you meant thank you. I do have one pot a left and right i got from radioshack a while back i never used Click here

          cyperghostC 1 Reply Last reply Reply Quote 0
          • monstermadeofmanM
            monstermadeofman
            last edited by

            It's fine dude no problem. Those pots are fine I've used them in my GBZ build

            Not all those who wander are lost

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            • cyperghostC
              cyperghost @josephchrzempiec
              last edited by cyperghost

              @josephchrzempiec At least and as I always say ... use I2S rather then PWM. The PWM sound lacks of clearness and it always brittles with hisses and pops. And you don't need two speakers because the Adafruit I2S mixes stereo channels down to own speaker output. So you have left and right audio channel together in one speaker.

              I made good experince with my little foldable Popeye Pie.

              monstermadeofmanM 1 Reply Last reply Reply Quote 0
              • monstermadeofmanM
                monstermadeofman @cyperghost
                last edited by

                @cyperghost I was under the impression that Pi zero doesn't have I2S that you can access without using the USB.

                I've gone for PWN audio as I'm using the USB to wire the controls in.

                Not all those who wander are lost

                cyperghostC 1 Reply Last reply Reply Quote 0
                • cyperghostC
                  cyperghost @monstermadeofman
                  last edited by cyperghost

                  @monstermadeofman You can use I2S even on a Pi Zero :) You just have to use the Hifiberry overlay and you are ready to go. The sound is more powerfull and 100% clear. You just hear one pop if the AMP is gonna activated and deactivated. In idle (in the ES game selection menu) is 100% NO noise! Follow the link to my build I made for month. In the last posting is a picture of the wired I2S DAC.

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                  • monstermadeofmanM
                    monstermadeofman
                    last edited by

                    Ahh i see. I'm doing a GBZ build and there is no room in there for that haha.

                    I'm PWM audio and to take out the hissing the board I'm waiting on has the filtering plus some nice little ferrite beads to take away a lot of noise

                    Not all those who wander are lost

                    cyperghostC 1 Reply Last reply Reply Quote 0
                    • cyperghostC
                      cyperghost @monstermadeofman
                      last edited by

                      @monstermadeofman Sorry I didn't get you. The I2S device from adafruit got the same size as the common PWM amps :)

                      monstermadeofmanM 1 Reply Last reply Reply Quote 0
                      • monstermadeofmanM
                        monstermadeofman @cyperghost
                        last edited by

                        @cyperghost

                        I'm waiting on this little beauty for my controls, sound and power distribution :)

                        alt text

                        Not all those who wander are lost

                        cyperghostC 1 Reply Last reply Reply Quote 1
                        • cyperghostC
                          cyperghost @monstermadeofman
                          last edited by

                          @monstermadeofman Haha ... Okay :) Size matters. Were did you get this? Looks awesome!

                          monstermadeofmanM 1 Reply Last reply Reply Quote 0
                          • monstermadeofmanM
                            monstermadeofman @cyperghost
                            last edited by

                            @cyperghost Audi mod forum. I haven't got mine yet but a guy called helder over there designs them and sells them.

                            Not all those who wander are lost

                            1 Reply Last reply Reply Quote 0
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