Hey guys is their anyway we can get a line out mod in any of the custom roms. There isn't a way to use this feature currently that I'm aware. Any help would be great and I think that this is a much needed feature for audiophiles and/or people looking to listen to their music via aux input in their automobiles.
how specifically are you trying to mod the line-out? Make it output via FM Radio? Or make it output louder audio from the AUX port? If so, I know you can use an auxilary ampifier to make it louder, but software wise I no of no such thing. There probably is something out there, I'm just too lazy to look
Where would I find a aux amplifier at?
cvv1984 said:
Hey guys is their anyway we can get a line out mod in any of the custom roms. There isn't a way to use this feature currently that I'm aware. Any help would be great and I think that this is a much needed feature for audiophiles and/or people looking to listen to their music via aux input in their automobiles.
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Can't say I understand what you are trying to achieve. Could you elaborate it a little more?
When you try to hook up your GN to a aux input or say a pair of speakers, the volume is unlistenable to say the least. Their is no way that I know of to improve this sound or quality that I have found. For info more see this link http://www.head-fi.org/t/582179/samsung-galaxy-nexus/60
Use Volume+ 1.8 . It will boost the headset volume to whatever level u need. Search for it in the forums. That should solve ur problem!
cvv1984 said:
Where would I find a aux amplifier at?
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Get one from Dealextreme. I use the FiiO E5 to take the audio signal from my Xbox 360 cable straight into my headphones. You just connect the E5 inline with the two 3.5mm connectors and it has a volume control independent of the source!
http://www.dealextreme.com/p/fiio-e5-3-5mm-earphone-volume-booster-power-amplifier-black-900118350
I was trying out various headphones and headsets to see if there was any major differences and noticed this rather strange thing. I used the youtube video:
http://m.youtube.com/watch?gl=HK&hl=en&client=mv-google&v=4bJ0dvAl98k
And I noticed that using the headphones that come with the HTC One X, the left and right audio channels do not work properly. The right channel seems to be quiet. I also tried it with an old pair of blackberry headphones.
However, when I use the headset from the premium box set (Dr dre solo), the left and right audio work properly.
Any ideas why this is the case?
Have you put the 3,5mm jack in firmly into the headphone port ?
That's the only thing i can come with that is causing your issues ? (because that triggers the same effect of non proper audio channels)
Yep. I checked with a few headphones actually... I'm guessing there is some actual difference between the headphones and headsets.. Pretty sure if some people try it the same thing will happen..
Mystery solved
This should happen to lots of people, not just me.
Been documented in other places such as this: http://code.google.com/p/cmtouchpad/issues/detail?id=132
Basically the youtube app introduces new compression etc and stuffs sounds. Playing the same youtube file via Chrome etc works FINE.
Does anybody know of a way one can record sound from the headphone jack on the DHD? I want to record something from a line out and I figured to connect it to my phone using the 2xRCA-3.5mm cable, but couldn't find an app for it... Anyone found a way?
uros0104 said:
Does anybody know of a way one can record sound from the headphone jack on the DHD? I want to record something from a line out and I figured to connect it to my phone using the 2xRCA-3.5mm cable, but couldn't find an app for it... Anyone found a way?
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any sound recording app will do it, u just have to feed the audio into the mic ring on the connector. cant just feed audio backwards into an amplifier and record it. you will only get mono recording ability though.
Got a scheme/picture which ring is the mic ring? And can it take line-out/record-out loudness, or do I have to cut it down? Also, I'm pretty sure that when I plug in normal headphones which don't have a microphone the DHD uses its own, how exactly does it recognize a plugged in mic?
Im not sure offhand which it is. id dig around in google, any of the standard headsets work as its a standard for which ring is the mic. im just at work and dont have the moment to search it out. line out volume sohuld work fine, but any amplified or even headphone outputs could be too much for it.
i had an adapter i made for hooking my guitar to my ipad a while ago but dont know where i put it lol.
Nice, guess I'll get into researching, one more thing for me to play with...
Thank you for your time...
I tried to do a search for headphones over the speaker but didn't come up with anything, so...if a thread like this is already out there please point in right direction and delete then. Alrighty on to the question.
When you plug your earphones into the phone you get to listen to some radio(FM) but you also have the option to play the FM radio over the speaker itself, which is awesome. Now I want to know IF something like that is possible for youtube as well? I can't see anything that can enable me to choose the speaker itself(like with FM radio) and instead forces me to listen to it over the earphones.
Is there an option like that and if so, where?
Yes, I'm well aware that this might seem like a completely stupid question, but at any given time someone has to be the idiot that asks it :victory:
BerndM14 said:
I tried to do a search for headphones over the speaker but didn't come up with anything, so...if a thread like this is already out there please point in right direction and delete then. Alrighty on to the question.
When you plug your earphones into the phone you get to listen to some radio(FM) but you also have the option to play the FM radio over the speaker itself, which is awesome. Now I want to know IF something like that is possible for youtube as well? I can't see anything that can enable me to choose the speaker itself(like with FM radio) and instead forces me to listen to it over the earphones.
Is there an option like that and if so, where?
Yes, I'm well aware that this might seem like a completely stupid question, but at any given time someone has to be the idiot that asks it :victory:
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I don't understand why this option would need to exist. Headphones need to be plugged in for FM radio to work because they act as the antenna, which is why you get the option to use the speaker, alternatively. YouTube doesn't need an FM antenna, so just unplug your headphones if you want to use the speakers.
craig0r said:
I don't understand why this option would need to exist. Headphones need to be plugged in for FM radio to work because they act as the antenna, which is why you get the option to use the speaker, alternatively. YouTube doesn't need an FM antenna, so just unplug your headphones if you want to use the speakers.
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Because the audio is louder... Have you tried to listen to a radio station through FM on the speaker and then go and listen to a stream of it at full volume? Somehow it seems that the volume can go higher with the earphones plugged in than to have it NOT plugged in. Yet...It could perhaps be argued that the stream sounds less loud(regardless of the fact that the volume is maxed out) because it is indeed a stream and it might have some interference.
But if the volume can actually go higher as a result of the earphones being plugged in, why can't we have the option then to have the volume louder if we so choose, by plugging in the earphones and maxing out the volume over the speaker? Like we do with FM...?
I take it though, from your response, that such a thing is not possible?
BerndM14 said:
Because the audio is louder... Have you tried to listen to a radio station through FM on the speaker and then go and listen to a stream of it at full volume? Somehow it seems that the volume can go higher with the earphones plugged in than to have it NOT plugged in. Yet...It could perhaps be argued that the stream sounds less loud(regardless of the fact that the volume is maxed out) because it is indeed a stream and it might have some interference.
But if the volume can actually go higher as a result of the earphones being plugged in, why can't we have the option then to have the volume louder if we so choose, by plugging in the earphones and maxing out the volume over the speaker? Like we do with FM...?
I take it though, from your response, that such a thing is not possible?
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Ahh, I think I'm starting to follow. There are a number of factors that are likely causing this differentiation, none of which have to do with having headphones plugged in.
A radio station's FM broadcast and internet broadcast are processed and compressed in different ways. FM compression is analog, while internet compression is digital, and there are crazy different algorithms, but both come down to fitting the "signal" or "data" into a particular bandwidth.
With FM, a station just throws the signal out in all directions, and while it's technically not comparable, there is less need for compression here, as with the internet broadcast, the more listeners there are, the more taxing it is, thus the digital signal is likely more compressed. This is probably more or less the reason for the discrepancy.
Also the streams could be normalized differently. Or any number of other variables. For all intents and purposes, the FM stream and internet stream are two completely different things.
I hope this helped!
(And no, as far as I know there's no option to do what you want, but even if there were, it wouldn't have the effect you're looking for )
Why would compression affect volume? It's not like you need more bits to go louder.
BenPope said:
Why would compression affect volume? It's not like you need more bits to go louder.
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FM audio doesn't have bits, for starters, it's analog radio waves. Functionally, an FM broadcast path is analog to analog to analog, where as a digital broadcast path is closer to "analog to digital to analog."
And from a technical standpoint, yes, more bits *does* equal louder. The more you compress digital audio, the more audio is being removed from the stream. MP3 compression (and probably M4A/AAC) remove the high-end and low-end frequencies:
In a compressionless, raw, audio file, a ton of bits are wasted on sound that is beyond the range of human hearing, and the range that speakers can produce. The point of digital audio compression is to eliminate the functionally "empty" bits, however the more compression there is, the more it starts removing what humans/speakers CAN process. As you approach high compression, mp3s will lose more and more sound, but even with mild compression, you're going to lose the crispness of the highs (like cymbals) and the lows (bass guitars/synths.) This will give it a muddy sound, and as there are less cymbals and bass guitars, the sound is technically quieter. In fact, if you were to compress an mp3 down to like 1Kbps, it's going to mostly sound like static. But I'm not aware of any audio tools that will let you go that low. Online radio stations typically broadcast at 64Kbps or 96Kbps. Which is crap. (Of course I haven't listened to online radio in years, it's probably better by now.) To put it another way, an FM transmission can broadcast at full strength, whether one person is listening or a million. With a digital broadcast, one million listeners will be far more taxing on bandwidth than just one person listening, so it's not cost-effective to broadcast with the same signal quality as FM. Of course FM is subject to radio interference, but that's not selective the way digital is. On FM you'll hear other noises on top of the signal, but as long as your signal is relatively decent, you're not losing much.
Without teaching a course on audio processing, basically:
More processing = more degradation.
More compression = more degradation
Analog is very different than digital for a multitude of reasons that I'm not going into.
EDIT: Also, FM does use compression, but it's a different type. Rather than removing audio based on pitch frequency as digital compression does, it uses dynamic compression, more akin to what a guitarist's compression pedal would do. It makes the quiet noises louder and the loud noises quieter, definitely makes quiet songs louder than if you were listening to an mp3, which doesn't do this type of compression.
ANOTHER EDIT: Unless the topic steers back towards mobile development, I won't indulge this thread anymore. XDA isn't for audio discussions (yes, I know I'm the one who took it off the rails in the first place.) If anyone is still confused as to why FM audio and digital audio sound different, you can PM me.
Hello. Does anyone know how to defeat the problem with stereo? I record video but stereo is not felt. In the media info writes 2 channels of stereo but there is no sound on it. Tried to close the microphone one at a time, so the top one writes a bit silly, and the bottom one is normal but there is no stereo. How to be? Firmware 9.2.2.0
I understand the stereo does not work for us?