From: bobnospam@gmail.com   
      
   On 1/23/2023 9:35 AM, Charles Lucas wrote:   
   > On Friday, January 20, 2023 at 10:51:04 PM UTC-6, Bob F wrote:   
   >> On 1/18/2023 9:15 AM, Charles Lucas wrote:   
   >>> On Saturday, January 14, 2023 at 5:29:13 PM UTC-6, Bodger wrote:   
   >>>> On 1/14/2023 4:25 PM, Bob F wrote:   
   >>>>> On 1/14/2023 1:03 PM, Bodger wrote:   
   >>>>>> On 1/14/2023 2:17 PM, Bob F wrote:   
   >>>>>>> I have been trying to get my Galaxy S9 to record FM radio programs.   
   >>>>>>> NextRadio is the only app that I have gotten to work to receive FM   
   using   
   >>>>>>> the internal tuner, but it has no record capability.   
   >>>>>> snip...   
   >>>>>>   
   >>>>>> I have no idea about your problem but I'm gobsmacked that a phone has an   
   >>>>>> external microphone input. I've never seen or heard of such a thing.   
   >>>>>>   
   >>>>>   
   >>>>> It is the same jack that you plug headphones into. Completely compatible   
   >>>>> with headphones that include a mic with a 4 conductor TRRS plug. I think   
   >>>>> that is pretty common.   
   >>>>>   
   >>>>> I should add to the original post that my OS is updated to Android 10,   
   >>>>> G960UTUES9FVD1.   
   >>>> OK, now that makes sense. Somehow my mind jumped to the image of a   
   separate   
   >>>> microphone input. Probably some gray cells are winking out from lack of   
   use...   
   >>>   
   >>> A signal always travels from its output to its input as long as the rules   
   of proper   
   >>> power and impedance are followed along the way- kind of like a glorified   
   postal   
   >>> system, from a conceptual sense.   
   >>>   
   >>> The headphone jack can be use as a variable audio output jack when using a   
   patch   
   >>> cord or Y-adapter patch cable from that device to an RCA audio R/L audio   
   input on   
   >>> an analog recording device (converting the impedance from an 1/8" (3.5 mm)   
   jack   
   >>> at 32 ohms to an RCA jack at 1000 ohms) which leads up to an analog device.   
   >>>   
   >>> Or you can use an 1/8" male to male patch cable to go to a computer line   
   input or   
   >>> other similar device to convert the signal to a digital sampler (starting   
   out as analog   
   >>> and then getting converted to a digital media in the processing). You have   
   to remember   
   >>> level control is also very important. Don't overload the headphone outs   
   with "too much"   
   >>> signal (or distortive audio) or avoid overdriving the signal.   
   >>>   
   >> I tried a half dozen recording apps to try to record the NextRadio audio   
   >> from the headphone jack back at a lower level into the mic input. One of   
   >> them "Voice recorder" 21.3.55.16, causes NextRadio to stop   
   >> receiving/outputting the FM audio while it is recording.   
   >>   
   >> The other recording apps I tried would let NextRadio keep going, but the   
   >> app shows zero signal, so no audio gets recorded.   
   >>   
   >> I tried a couple of the apps while playing an mp3 file on the phone, and   
   >> the audio was recorded properly.   
   >>   
   >> So, it really seems like NextRadio is doing something wierd to prevent   
   >> recording of it's output.   
   >>   
   >> Can anyone propose what they might be doing, or ways to get past it.   
   >>   
   >> I cannot find any other FM apps that will run on my S9.   
   >   
   > I repeated this message for the benefit of all concerned.   
   >   
   > We never addressed the software you use. Some software is not licensed to   
   pickup signals   
   > for recording because they want you to pay money for that. You can download   
   several   
   > free audio recording or dubbing software apps, record in .mp3 at the desired   
   rate, and   
   > then copy and paste the completed file over to NextRadio's output folder for   
   audio so   
   > you can play it back.   
      
   No need to play it back using NextRadio. I just want to be able to   
   capture the sound from it. I tried a half dozed audio capture apps, and   
   none of them can capture the internal audio from NextRadio, or the   
   reduced signal sent out the earphones and fed back (reduced) into the   
   external mic input with. I even tried using a headphone with a mic, and   
   taping one of the earpieces to the mic rather than resisters and a cap   
   to feed the signal back, and neither one works.   
      
   One of the recorder apps shuts off the NextRadio output when recording,   
   the others just have 0 volume input despite the signal going into the   
   external mic input, or they just record whatever the internal mic hears.   
      
   >   
   > Or you can record it in 16 bit Stereo wave format (.wav) file, convert it to   
   .mp3 format   
   > you desire to convert it to with a convertor. Then dump the file into   
   NextRadio's   
   > output folder to playback the finished .mp3 file. In this way, you can   
   bypass the   
   > software you speak of stringent requirements and pedantic quirks.   
   >   
   > FYI, sometimes, there is a DRM (Digital Rights Management) on these files or   
   software   
   > that play them to prohibit copying copywritten files. DRM is a form of a   
   "copy" guard,   
   > again because it boils down to the fact that they want you to pay money to   
   get the   
   > composite signal that comes from them. I just provided you work arounds   
   without   
   > the cost and the hassle; I also warn that this post is for educational   
   purposes only   
   > regarding recording and conversion of signal and is not an encouragement to   
   violate   
   > any copyright or infringe upon anyone's work in any other form otherwise.   
   >   
   > Good luck,   
   >   
   > Charles Lucas   
      
   --- SoupGate-Win32 v1.05   
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