Playing music - affect on battery!

[Guest Simon Desser]

Being the sad guy that I am :oops: I've just been comparing the affect on battery life, between playing WMA's in WMPlayer, and OGGs in Pocket Music.

I am pleased to find that they both seem to be identical (I suspected that Pocket Music would drain the battery more) :)

Anyway, I thought it might be handy to know, that as a very rough rule of thumb, every 30 minutes of listening to music, reduces battery level by about 5% ;)

It seems to be quite consistant, 'cos after 90 minutes, the battery level had reduced by 15%.

[Guest James]

Thanks for the info, sounds about right mate... I have found the same.

Waiting for a higher capacity battery to become available… wonder if it will?

[Guest dewslat]

but off course the bat would drain... UR USING THE DARN PROG TO PLAY MUSIC AND IT WILL EAT POWER ;) !!! Silly topic :)

[Guest Simon Desser]

but off course the bat would drain... UR USING THE DARN PROG TO PLAY MUSIC AND IT WILL EAT POWER ;) !!! Silly topic :)

WTF :?

Have you read what I said :?:

The point of my "SILLY TOPIC" is to give people a rough idea of just how much playing music actually drains the battery :!:

ie:- Approx 30 minutes of music drains the battery by about 5% :roll:

[Guest mcwarre]

but off course the bat would drain... UR USING THE DARN PROG TO PLAY MUSIC AND IT WILL EAT POWER :D !!! Silly topic ;)

Some people! :) ;) :D :lol:

[Guest Afy]

Do you get different results when playing at different volume levels through the speaker or through the headset ?

i would have assumed that playing music full blast through the speaker would kill the battery more than listening through headphones.

[Guest spacecowboy6982]

Do you get different results when playing at different volume levels through the speaker or through the headset ?

i would have assumed that playing music full blast through the speaker would kill the battery more than listening through headphones.

Hahaha lol

[Guest blewer]

Simon, what have you started! :wink:

Usefull info, thanks

[Guest Symos]

Hahaha lol

Explain the lol plz?

Is it then not safe to assume that bigger energy (sound, or whatever) waves take more energy to be produced?

Or is the SPV's "energ-o-matic" special "producing energy from nothing" generator switched on when listening to music?

[Guest dewslat]

Do you get different results when playing at different volume levels through the speaker or through the headset ?

i would have assumed that playing music full blast through the speaker would kill the battery more than listening through headphones.

AHAHAHAHA!!!! Another silly idiot...

:) ;) :D :lol: ;) :D :) :D :lol: :lol: :lol: :lol: :lol: :D :D :D :D :D

KILL SADAM!!!

They off course give up the same signal and power.. it is up to the amplifier to make it sound good!!!! dumb a$#$...

TO SIMON- what difference does it make? 5% is only 1 song.. and that depends upon the battery life. If the bat has lost its life, get a new one..

:D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D

Hey Simon sez - turn on the music!!! Dewslat sez, in your a#^%!!!

PEACE DUDES!! :D

[Guest CarlT]

Playing music through the speaker does drain the battery faster than through the supplied headphone.

Even if it's up to the amplifier to make it sound good or whatever it still need a certain amount of power to enhance the sound. And that power is taken from the battery, unless there is a secret energy source in the smartphone that I'm not aware of :)

You probably wont notice any difference from playing with the headphones at maxed volume or mid volume. But if you change headphone to senheisers or something (assuming that you fix the plug) then you will notice changes on batterylife.

And yes, when can we have a high capacatiy battery??!!! Probably not this year or the next... I'm no good at batteries but I believe that 1050mAH is a pretty maxed out mobilephone battery with todays technology. If it werent then surely the Mitac wouldn't have been supplied with two batteries. It would be cheaper to sell it with one high capacity instead, no?

[Guest Simon Desser]

TO SIMON- what difference does it make? 5% is only 1 song.. and that depends upon the battery life. If the bat has lost its life, get a new one..

:? :? :? :? :? :? :? :? :? :?

I don't think you understand what I'm saying :?:

People regularly ask how long you can listen to music before your battery runs out?

I'm saying, as a very rough guide, that listening to 30 minutes of music drains the battery by approx. 5% (using Task Manager's battery indicator)

(In other words, listening to 2 hours of music, will drain the battery by approx. 20% etc. etc.)

My battery is fine, I don't need a new one!

[Guest James]

Is is getting Too much for you yet Simon!!! He He :)

[Guest Simon Desser]

Is is getting Too much for you yet Simon!!! He He :)

I'm off to find a brick wall to bang my head against :x :wink:

[Guest Will]

Lets recap the facts:

30mins of listening to music drains the battery by about 5%

Listening at low volume with headphones, uses a little less power than listening using the phone loudspeaker.

Did I miss anything?

And less of the personal attacks please. or i'll lock this :cry:

Will

[Guest Lordsmiff]

They off course give up the same signal and power.. it is up to the amplifier to make it sound good!!!! dumb a$#$...

While you're busy calling everyone dumb a$#$, just pause a second to allow some higher brain functions to kick in so you can think about what you are saying...

What drives the amplifier? Sound waves? I think not...it's...electricity.

Now, do you think for the amplifier to put out a higher volume, it requires more electricity? Yes? No?

This answer here of course, would be...yes! So, that means Afy's question is perfectly valid and that you are well out of order taking the pi$$.

So, to recap then, Dewslat is the dumb a$#$ and everyone else can talk about whtever the hell they want and can expect to do so without being ridiculed by some immature plonker with a chip on his shoulder.

K? :evil:

(sorry Will, couldn't let it go :) )

T.

[Guest James]

err! i dont think so!

a transistor class A amplifier usess the same amount of power no matter what the o/p

[Guest Lordsmiff]

Hmmm, I was going to ask you to do my blue LEDs...I don't think I will now...I don't like being shot down in flames ;-)

I am kidding of course ;-)

Anyway, surely, no matter how small the increase, it does use more - if it doesn't, it would be like getting something for nothing and I'm pretty sure the universe implodes if you break the laws of physics...or something :)

Many class A amplifiers use the same transistor(s) for both halves of the audio waveform. In this configuration, the output transistor(s) always has current flowing through it, even if it has no audio signal (the output transistors never 'turn off'). The current flowing through it is D.C. A pure class 'A' amplifier is very inefficient and generally runs very hot even when there is no audio output. The current flowing through the output transistor(s) (with no audio signal) may be as much as the current which will be driven through the speaker load at FULL audio output power. Many people believe class 'A' amps to sound better than other configurations (and this may have been true at some point in time) but a well designed amplifier won't have any 'sound' and even the most critical 'ear' would be hard-pressed to tell one design from another.  

NOTE: Some class A amplifiers use complimentary (separate transistors for positive and negative halves of the waveform) transistors for their output stage.

Based on this, surely they wouldn't be using this configuration in a device where battery life is critical?

Regardless, the point was though, that people should be able to post what they want without fear of being ridiculed for being wrong ;)

As I'm probably about to be ;-)

T.

[Guest Lordsmiff]

And upon further investigation (I did say I don't like being shotdown ;-) )

Efficiency - The theoretical limit to this amplifier's efficiency is 50%, meaning for every watt of output we will use up at least 2 watts of d.c. power input in to the amplifier.

And furthermore ;-)

Most experts will agree with me when I say you will only see this 50% efficiency in your dreams.

I love the internet ;-)

T.

[Guest James]

In reality though the SPV will contain a op-amp circuit to amplify the audio so as you say Lordsmiff the more volume the more power taken… :)

[Guest Lordsmiff]

See? Now we can be friends :)

T.

[Guest dewslat]

In reality though the SPV will contain a op-amp circuit to amplify the audio so as you say Lordsmiff the more volume the more power taken… :)

At least, we now have a better topic... ;)

Cool-off dudes, im just making fun of ye!

[Guest Will]

er ok can someone else recap.. i'm lost!!

Will

[Guest Afy]

Learn something new everyday !

Now all i need to do is to figure out a way to get the SPV's "energ-o-matic" special "producing energy from nothing" generator to recharge my battery :wink:

[Guest James]

now i am lost?

"producing energy from nothing"

where did this come from?

a class A amp uses the same power no matter what the o/p is. Always Max power used.