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  3. Please shout louder - Android audio help needed! Zillions of rep-points to give away!

Please shout louder - Android audio help needed! Zillions of rep-points to give away!

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  • N Nathan Minier

    Honestly, this might be something that would be a good Raspberry PI project, since you'll also need to run an analog-to-digital conversion on the signal coming across the RCA. I'd be surprised if you could find a COTS product that will do what you want it to out of the box, at least not at a reasonable price. I'm afraid that I don't know enough about analog-to-digital processing to make a good recommendation on approach, though.

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    Chris C B
    wrote on last edited by
    #10

    Sorry - I don't indulge in the black arts, for fear of damning my eternal soul! :laugh: I do LOB/DB stuff.

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    • L Lost User

      PARDON! Please send me you Stax headphones (I already have the Sennheiser HD-650) It would appear you are not making best use of them. :-)

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      Chris C B
      wrote on last edited by
      #11

      I CAN'T HEAR YOU. SPEAK UP MAN!

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      • C Chris C B

        Thanks for that - I found it earlier, but I think it works the wrong way. I want a magic thingy that sucks music out of the pre-amp, digitizes it, and sends it to the Android, whereas that seems to take the Wi-Fi signal and push it to the HiFi RCA connector. :sigh:

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        Lost User
        wrote on last edited by
        #12

        Would SoundWire work for you? I'm not sure as I've never tried it, it uses a PC(with line-in) to digitise and send the audio, you should be able to equalise at the PC. Is your source mainly analogue?

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        • S Slacker007

          Equalizer --> Bluetooth Adapter --> Phone --> headphones --> your ears, seems like a lot of steps. More steps equal more areas for sound degradation? Bluetooth is getting better, but it still leaves me wanting more, sometimes.

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          Lost User
          wrote on last edited by
          #13

          I don't think its possible to send audio via Bluetooth to a phone, Bluetooth has strict source/sink rules. Omit the phone and use Bluetooth headphones (which are getting much better, but not Stax better) and what you suggest would work.

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          • L Lost User

            I don't think its possible to send audio via Bluetooth to a phone, Bluetooth has strict source/sink rules. Omit the phone and use Bluetooth headphones (which are getting much better, but not Stax better) and what you suggest would work.

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            Nagy Vilmos
            wrote on last edited by
            #14

            Why not? I use hands-free via bluetooth in the car and, unless I'm missing something, that is sending audio to the phone.

            veni bibi saltavi

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            • N Nagy Vilmos

              Why not? I use hands-free via bluetooth in the car and, unless I'm missing something, that is sending audio to the phone.

              veni bibi saltavi

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              Lost User
              wrote on last edited by
              #15

              Isn't it a bit too early to be "On the Gin" Nagy? :-) Unless I'm missing something, aren't you sending audio from the phone via Bluetooth when doing hands-free. Unless you mean the voice command to do the dialling, in that case I'm not sure how that works, it must be Voodoo magic.

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              • C Chris C B

                Sorry - I don't indulge in the black arts, for fear of damning my eternal soul! :laugh: I do LOB/DB stuff.

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                Nathan Minier
                wrote on last edited by
                #16

                Same boat, but never afraid of playing with things that have wires! Soul was sold off for an excellent cheeseburger some years ago, though.

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                • L Lost User

                  Isn't it a bit too early to be "On the Gin" Nagy? :-) Unless I'm missing something, aren't you sending audio from the phone via Bluetooth when doing hands-free. Unless you mean the voice command to do the dialling, in that case I'm not sure how that works, it must be Voodoo magic.

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                  Nagy Vilmos
                  wrote on last edited by
                  #17

                  No, you are missing something. I speak, this causes microphones fitted to the car to vibrate and create an electrical signal. The signal is transmitted to the phone via bluetooth and that sends it out through the cellular network. The callers inbound messages go from the phone via bluetooth to the car's audio system and out to the speakers.

                  veni bibi saltavi

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                  • N Nagy Vilmos

                    No, you are missing something. I speak, this causes microphones fitted to the car to vibrate and create an electrical signal. The signal is transmitted to the phone via bluetooth and that sends it out through the cellular network. The callers inbound messages go from the phone via bluetooth to the car's audio system and out to the speakers.

                    veni bibi saltavi

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                    Lost User
                    wrote on last edited by
                    #18

                    Oops :-o yes of course you are correct... I take back what I said about the gin. :-) All I can offer in my defence is that for HQ audio transfer we are usually taking about AVDTP, the voice link is a different part of the Bluetooth protocol and much lower quality.

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                    • S S Houghtelin

                      Have you looked into the Bluetooth enabled hearing aids? You can connect directly to your device and hear the music fit to your hearing deficiencies. Headphones over hearing aids does not work very well.

                      It was broke, so I fixed it.

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                      Darren_vms
                      wrote on last edited by
                      #19

                      Perhaps something like 7dayshop Fusion Pro Low latency Wireless Bluetooth Transmitter and Receiver Kit with aptX[^] Not used one myself but the reviews look good. /Darren

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                      • C Chris C B

                        It seems, that due to being a competitive shootist in my earlier years, coupled with years of motor-cycling before the industry invented low wind-noise helmets, under domestic pressure I will now have to wear hearing aids. A recent hearing test shows that my hearing is OK at low frequencies, but tails off rapidly as the frequency increases. :(( I often listen to music in the evenings using my Stax or Sennheiser headphones, while MrsLadyWife watches TV, but I now need to shape the sound to match my hearing, as per the hearing aid graphs. I have a good graphic equalizer loaded on my Android, and some good headphones to go with it, so I need to be able to plug a Bluetooth or WiFi thingy into the RCA out from my pre-amp, and pick it up on my Android, and thus to the headphones. So - does the hive mind of CP have any suggestions of how I should set about this? What kind of 'thingy' do I need? I should point out that headphones cannot be used with the hearing aids I am currently evaluating, and anyway, the sound quality is very poor. Please shout your reply very loudly, or I won't hear you. :laugh:

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                        Manfred Rudolf Bihy
                        wrote on last edited by
                        #20

                        Chris C-B wrote:

                        while MrsLadyWife watches TV

                        What exactly is MrSirWife then, or rather, do I even want to know? ;P Cheers!

                        "I had the right to remain silent, but I didn't have the ability!"

                        Ron White, Comedian

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                        • L Lost User

                          Oops :-o yes of course you are correct... I take back what I said about the gin. :-) All I can offer in my defence is that for HQ audio transfer we are usually taking about AVDTP, the voice link is a different part of the Bluetooth protocol and much lower quality.

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                          Chris C B
                          wrote on last edited by
                          #21

                          Display Name Taken wrote:

                          I take back what I said about the gin. :)

                          No, no! That's the only bit you got right! :laugh:

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                          • S S Houghtelin

                            Have you looked into the Bluetooth enabled hearing aids? You can connect directly to your device and hear the music fit to your hearing deficiencies. Headphones over hearing aids does not work very well.

                            It was broke, so I fixed it.

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                            Chris C B
                            wrote on last edited by
                            #22

                            Yes - and they are pretty poor, and most of them seem to be earbuds-on-a-curved-stick type, and I like full covering headphones.

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                            • D Darren_vms

                              Perhaps something like 7dayshop Fusion Pro Low latency Wireless Bluetooth Transmitter and Receiver Kit with aptX[^] Not used one myself but the reviews look good. /Darren

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                              Chris C B
                              wrote on last edited by
                              #23

                              You, Sir, are a star. That is just the kind of magic thingy I was looking for. At 20 quid it is definitely worth a punt. In fact, I shall probably get a pair, and use the second one for the few occasions I watch the telly, when MrsLadyWife™ complains I need the volume too high. It actually looks rather as if it is a modified hands free job, as per the Nagy Vilmos post. Have a zillion rep-points (or a very small part thereof). :laugh:

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                              • L Lost User

                                I don't think its possible to send audio via Bluetooth to a phone, Bluetooth has strict source/sink rules. Omit the phone and use Bluetooth headphones (which are getting much better, but not Stax better) and what you suggest would work.

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                                Rage
                                wrote on last edited by
                                #24

                                Display Name Taken wrote:

                                I don't think its possible to send audio via Bluetooth to a phone

                                I am doing that every day in my car. My phone is seen like a storage media over Bluetooth by the car sound system.

                                Do not escape reality : improve reality !

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                                • C Chris C B

                                  You, Sir, are a star. That is just the kind of magic thingy I was looking for. At 20 quid it is definitely worth a punt. In fact, I shall probably get a pair, and use the second one for the few occasions I watch the telly, when MrsLadyWife™ complains I need the volume too high. It actually looks rather as if it is a modified hands free job, as per the Nagy Vilmos post. Have a zillion rep-points (or a very small part thereof). :laugh:

                                  D Offline
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                                  Darren_vms
                                  wrote on last edited by
                                  #25

                                  I hope the device lives up to the reviews, Let me know how it works out for you. /Darren

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                                  • C Chris C B

                                    You, Sir, are a star. That is just the kind of magic thingy I was looking for. At 20 quid it is definitely worth a punt. In fact, I shall probably get a pair, and use the second one for the few occasions I watch the telly, when MrsLadyWife™ complains I need the volume too high. It actually looks rather as if it is a modified hands free job, as per the Nagy Vilmos post. Have a zillion rep-points (or a very small part thereof). :laugh:

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                                    Lost User
                                    wrote on last edited by
                                    #26

                                    I don't think it work for sending audio to a phone or other Android device, which is what I thought you were tying to do. This is for sending audio to a pair of bluetooth headphones or bluetooth speakers.

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                                    • R Rage

                                      Display Name Taken wrote:

                                      I don't think its possible to send audio via Bluetooth to a phone

                                      I am doing that every day in my car. My phone is seen like a storage media over Bluetooth by the car sound system.

                                      Do not escape reality : improve reality !

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                                      David Crow
                                      wrote on last edited by
                                      #27

                                      So you car's stereo sends music to your phone, rather than the other way around?

                                      "One man's wage rise is another man's price increase." - Harold Wilson

                                      "Fireproof doesn't mean the fire will never come. It means when the fire comes that you will be able to withstand it." - Michael Simmons

                                      "You can easily judge the character of a man by how he treats those who can do nothing for him." - James D. Miles

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                                      • D David Crow

                                        So you car's stereo sends music to your phone, rather than the other way around?

                                        "One man's wage rise is another man's price increase." - Harold Wilson

                                        "Fireproof doesn't mean the fire will never come. It means when the fire comes that you will be able to withstand it." - Michael Simmons

                                        "You can easily judge the character of a man by how he treats those who can do nothing for him." - James D. Miles

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                                        R Offline
                                        Rage
                                        wrote on last edited by
                                        #28

                                        well, no. My car stereo picks up the music from the phone, which is seen as a storage media. Just like a USB key.

                                        Do not escape reality : improve reality !

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                                        • C Chris C B

                                          It seems, that due to being a competitive shootist in my earlier years, coupled with years of motor-cycling before the industry invented low wind-noise helmets, under domestic pressure I will now have to wear hearing aids. A recent hearing test shows that my hearing is OK at low frequencies, but tails off rapidly as the frequency increases. :(( I often listen to music in the evenings using my Stax or Sennheiser headphones, while MrsLadyWife watches TV, but I now need to shape the sound to match my hearing, as per the hearing aid graphs. I have a good graphic equalizer loaded on my Android, and some good headphones to go with it, so I need to be able to plug a Bluetooth or WiFi thingy into the RCA out from my pre-amp, and pick it up on my Android, and thus to the headphones. So - does the hive mind of CP have any suggestions of how I should set about this? What kind of 'thingy' do I need? I should point out that headphones cannot be used with the hearing aids I am currently evaluating, and anyway, the sound quality is very poor. Please shout your reply very loudly, or I won't hear you. :laugh:

                                          R Offline
                                          R Offline
                                          Rob Grainger
                                          wrote on last edited by
                                          #29

                                          Simply use the new-fangled pitch correction available in audio software to take the music down a few semitones, until you can hear the high bits again ;-) Plus you can get interesting artifacts, like vocals sounding strangely metallic, but that seems pretty common in modern music for some reason anyway. Not for a minute suggesting that modern pop stars are selected for looks rather than ability, no sir.

                                          "If you don't fail at least 90 percent of the time, you're not aiming high enough." Alan Kay.

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