While driving I always hook up my cellphone (in this case a Nexus 5) to my car stereo via bluetooth for music streaming. And out of an irrational fear of battery draining too fast, I always keep the cellphone volume as low as possible and rather pump up the volume rocker on the car stereo itself.
Lately I've been wondering if the volume level on the cellphone (while bluetooth streaming) actually makes any difference on battery consumption.
I mean is not like the cellphone speakers are being used, but still getting the cellphone volume up actually makes the car speakers sound louder so... what do you say?
I've search info on this question across the web to no avail (It may be a silly one anyway but still... enlighten me please ).
sergiotca said:
While driving I always hook up my cellphone (in this case a Nexus 5) to my car stereo via bluetooth for music streaming. And out of an irrational fear of battery draining too fast, I always keep the cellphone volume as low as possible and rather pump up the volume rocker on the car stereo itself.
Lately I've been wondering if the volume level on the cellphone (while bluetooth streaming) actually makes any difference on battery consumption.
I mean is not like the cellphone speakers are being used, but still getting the cellphone volume up actually makes the car speakers sound louder so... what do you say?
I've search info on this question across the web to no avail (It may be a silly one anyway but still... enlighten me please ).
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Can't imagine that it would, since the bluetooth service is running regardless of volume level, and battery usage is predicated on the time the service keeps your phone awake.
While I can imagine that there is a theoretical, but completely miniscule difference in sending audio where the high bits are always zero (it might compress a hair better), I can't believe that it would have any impact on your battery life.
For best audio quality you want to use as many bits as you can when in digital -- less background noise and low-level distortion. That means turning the BT volume up and the car volume down. Unless you've got your tone, bass boost, thump-thump-erator, or other effects turned on, that means basically max BT volume on the phone.
Pretty sure volume control for bluetooth streaming is all done in software, so lowering the volume does nothing but make things hard to hear.
If you're THAT concerned about battery life, having the Bluetooth radio on at all should give you nightmares...
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Is there an app that increase the volume pass the max amount? The headphone volume output on my DVP is really low compared to my ipod. In my car i have to crank the volume up to almost twice the amount compare to my ipod.
nope .don't think there will be
Same on my Omnia7, and since the last official update it got even worse.
It sucks.
Mango made my one much better for music via speaker/headphones.
Phone call via loud speaker is also better but rest is the same sadly.
Hey All -
I ran a quick search and didn't find this problem. I wanted to document it for posterity.
My phone makes a buzzing sound. I've seen it in every ROM I've tried so far (seems to be a hardware problem).
The sound is faint, is unaffected by media volume, and goes away when wifi is turned off. The phone appears to shut off the sound hardware when sound hasn't been played for a while in order to save battery. This makes the buzzing stop. But if a notification comes in, or there is a quiet part of a song, you can totally hear it.
It exists regardless of the ROM I have installed.
The sound is like what you'd hear in an older computer with something called crosstalk. Back in the day, (and to an extent still), various components in the hardware would generate EMI and would affect the sound quality in sound cards. For example, I had an Adlib card that would buzz a little every time the hard drive would read/write to disk.
This sounds just like that.
Anyway... just vote in the poll/comment if you're having this problem. Please post to the thread if you have a solution. I'm not expecting much though. I'm pretty sure I'd basically need a new phone for this to go away.
I get a very slight buzzing in my phones, completely unaffected by wifi. Only happens with my CX300 in-ears, any open earphones i havn't heard any noticable buzzing (though have no tried any type of headphones yet). Using Voodoo sound, lowering the amplifier dB gain and putting the media volume up reduces it a touch.
I grabbed a pair of iphone earphones and the nexus s earphones to test it with some more types, no noticeable buzzing. Also, both their sound quality is appalling in comparison to cheap sennheisers.
Yeah, that's different than me. It sounds like your CX300s might be dying.
I've got some Klipsch S4i ear buds and Bose QC3s that both have the same problem. Its loud and clear enough though that I'm sure I could hear it with cheaper headphones.
I can turn the volume all the way to zero and still hear it. When I turn it up, it doesn't make it louder though, which is "nice".
I've been all over the voodoo sound settings and nothing helps.
That's a shame, your phone probably suffers a noticeable case of leakage between the components. Could this possibly be classified as a defect and be fixed/replaced under warranty?
Also, my CX300s have no hiss on a higher quality dac and it was noticeably louder on my old nokia. I guess they're just more sensitive, they are only 16 ohm after all. No drama for me
It might qualify as a defect. I'd have to bug Samsung I guess. I could see Samsung just telling me to deal with it. It doesn't make a lot of business sense to replace a $500 phone because the headphones hiss when wifi is enabled.
It would sure make me a lot happier about buying Samsung stuff in the future though.
That's really weird about your headphones. Unless the audio quality on the CX300s is far superior over the iphone/nexus s ones, I would expect them all to behave the same way. Even then, it would be very subtle. Maybe the Nexus S doesn't ground the headphone jack very well for your headphones?
You could give them a call/email and see how it works out, but you'll probably be left without a phone for a few weeks if you send it so probably not worth it for you either.
Definitely far superior in comparison, but not nearly superior earphones Possibly a grounding issue, could even be just an unlucky set of Sennheisers that i got and have always been like this. They are out and about anyway, take a good beating and have been rock solid. Hopefully soon i'll be getting a decent pair of headphones for home use, funds allowing.
My laptop does the same thing, I'm thinking it is just interference with the headphones and your phone. might also be a lose wire or something in the phone or headphones :/
I know that this is old tread, but I had the same problem and solution might help someone.
In my case, the source of the buzz was charger (poor power supply filtering in cheap switching sources). I bought some cheap car charger/dock, and whenever I plugged my phone into it I would get lots of buzzing noise. Of course, I used it every time when in car, so I did not notice correlation for a while.
Using better charger solved my problem.
If by any chance you are charging your phone while you listening to music and getting lots of buzz, try disconnecting power cable to phone and see if there is noticeable difference. If there is, you found your problem.
Thanks for letting us know grejigl. Although not the source of my particular (non) issue, i can see it helping out someone else down the road.
I'm running on battery power when it happens to me. I'm pretty sure its caused by something related to WiFi because as soon as I shut WiFi off, the buzzing is gone.
I've noticed that listening to any music or certain audio frequencies at 75% or higher external speaker volume become very distorted, like it's pushing the speaker past it's limits. I've tested this with another friend's S6 and his is the same way. Easiest way to tell is raising the ringer volume and hearing a distinct high pitch with the volume adjust sound. Dunno how else to describe it.
Disregard this post. Because of the junk speaker, horrible LTE and wifi reception, and terrible battery life this phone went back.
I've heard that the internal DAC in the S7 is really weak, but is it really this weak? When I listen to music with headphones, I have to raise the volume to ~80% just to sound like how ~30-40% would sound on most devices. This is the same with both wired headphones and Bluetooth headphones
Its fine. Much much louder than my previous sony xperia z3 compact
It most certainly is not fine. At roughly 66% volume, I cannot hear anything when I'm on an airplane. I travel a lot for work and have to crank the volume up past 90% just to listen to podcasts when flying.
Sent from my SAMSUNG-SM-G930A using Tapatalk
I have no issues with it. It depends on the source and type of headphone. Stock headphones are not sealing type so there no way it's going to cancel out airplane. Get sealing earphone and it'll be too loud.
I have volume problems too. Actually at 1-3 notches sound gets cut off!
To clarify it goes from decently loud at the 4+ to well I can't hear half the things at 3 (drops in and out). What I can hear is still loud enough. At step 1 I can hear about 20% at the volume in expecting and the rest is silent.
Then to make things worse, call volume keeps resetting to step 2 or 3. I'd take a call and max it out then next call it will be at 2/3 again.. I believe some app is setting the media volume to call volume. But I have no new apps and did not have this problem on S6.
http://forum.xda-developers.com/showthread.php?t=3339809
You should try this mod , IF you're rooted and have a custom recovery. Works really well.
insang-droid said:
I have no issues with it. It depends on the source and type of headphone. Stock headphones are not sealing type so there no way it's going to cancel out airplane. Get sealing earphone and it'll be too loud.
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I don't use stock headphones and i always use sealing types in airplanes. When I connect to my car via the aux port, i have to run full volume on the phone and two notches down from full volume on the car stereo to match sound levels from my OPO. My stereo settings go from 0-40, i run 38 with the S7. OPO i can set the stereo to 30 and it matches S7 volume.
I've noticed if I have maps or a GPS running after the GPS uses the speaker, it can use the "full" volume again until I remove and plug a auxiliary cable again. It's a dirty work around but it is effective.
Drmacguyver said:
I've noticed if I have maps or a GPS running after the GPS uses the speaker, it can use the "full" volume again until I remove and plug a auxiliary cable again. It's a dirty work around but it is effective.
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Go to sound quality settings and bump the equalizer all the way up. Can also turn on hearing aid assist
Sent from my SM-G930V using XDA-Developers mobile app
Since I got my S6 last November, I have been happy with it. I've got a new case for it, a screen protector, but even then I took such care with it because I know how much power it holds and how bad I would feel if I lost it or broke it. After the last two weeks, I've had something very strange going on with the media audio levels. I can continually keep pressing the volume button up, and the volume gets louder. But, when I get two "steps" away from maximum volume it seems that at that spot it is the highest it can go, 100%. If I press the volume up button again, it seems like it goes down to 95%, and it's full volume, 90%. I cannot think of a reason why it would do this, other than the fact that I have taken it into some areas with a high humidity level, like in the bathroom while running a hot shower, or in a locker room after football practice. I'm not sure that this would only affect the speaker, but for my issue with the speakers, not. I have tried this with the internal media player, YouTube, Spotify, Pandora, Samsung Milk Music, and Google play music. Not only have I tested it out with the internal speaker of the device, I've tried with Apple earpods, the old Apple earphones, the Samsung earbuds that came with the device, my Sony Bluetooth headphones MDR zx770bt, my Bose Bluetooth speaker, a Pioneer amplifier, boom headphones, Sennheiser Headphones, and even hooking my car up to it with an aux cable. I don't know why this is happening, and I don't know how to stop it. Can any of you help me or have you had this experience before as well?