I've noticed that when I connect the phone to my car through the 3.5mm jack, the volume output is considerably lower than other phones or media players I have. Any fix for it?
Has anyone noticed terrible noise when using an S3 docking system or cable to output both Audio and Charging?
- extreme hiss and random noise, machine processor noise, crackle etc. (only if charger is plugged in as well)
- after 2 seconds of no sound, you can hear what resembles to be an AUDIO gate...that kicks in and mutes the noise until you trigger your next button sound.
- Even if you listen to a song, and think it doesn't happen while listening to a song...IT'S still there...fighting the song and causing degradation in Audio quality.
- not too mention, phone calls will NOT route through the USB jack, and music and navigation type stuff.
- if you unplug the charger, the sound cleans right up and sounds fine. It's the combination of having the audio and charging outputs all in one.
- ground loop isolators do not help
I have a background as an audio technician and some electronics skills and I did hours of testing and modding...unfortunately! All failed. I own an Ibolt car cradle (which I did most of my testing with), a KiDiGi desktop docking cradle, and I even hand made a cable that could trigger docking mode. All three of these scenarios FAILED with the NOISE factor.
I have resigned to thinking it is a hardware design bug with the S3. I have modified my Ibolt so that it sends out audio from an extra cable that plugs into the Headphone Jack...which as a bonus, as sends Dialer audio.
(I just realized that this is the i9300 thread, and I have a i747m but maybe this thread could help all the same)
I've had three S3's and used USB audio out to my car stereo via 3.5mm. None ever generated any additional noise.
CZ Eddie said:
I've had three S3's and used USB audio out to my car stereo via 3.5mm. None ever generated any additional noise.
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Eddie...can you confirm these points:
1) You have a usb cable or dock that comes out the bottom of your S3, and it splits into USB for charging....and 3.5mm for audio? (NOT THE HEADPHONE OUT)
Is it a cable or dock and would you mind tell me the name of it?
2) What do you plug the audio into?
- stock car audio input
- front aux input on a car deck stereo system (stock/aftermarket)
- rear aux inputs to aftermarket stereo
- other?
3) with the steareo turned up fairly loud, but no music playing, do you hear any noise when you click buttons (assuming you have audio enabled for button clicks in Android settings) When pausing between loud music, do you hear any white noise, machine noise, hiss etc.?
4) What is your S3 model? (i9300?) and what OS version.
themadproducer said:
1) You have a usb cable or dock that comes out the bottom of your S3, and it splits into USB for charging....and 3.5mm for audio? (NOT THE HEADPHONE OUT)
Is it a cable or dock and would you mind tell me the name of it?
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I've used the Samsung Infuse and also iBolt docks. Both have the split USB cable for charging & 3.mm audio.
themadproducer said:
2) What do you plug the audio into?
- stock car audio input
- front aux input on a car deck stereo system (stock/aftermarket)
- rear aux inputs to aftermarket stereo
- other?
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I use the front AUX input on my JVC car stereo.
themadproducer said:
3) with the steareo turned up fairly loud, but no music playing, do you hear any noise when you click buttons (assuming you have audio enabled for button clicks in Android settings) When pausing between loud music, do you hear any white noise, machine noise, hiss etc.?
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I don't remember any noise when clicking buttons?
But we're talking about AUX input which is analog, so when you turn the volume up with no music playing, you'll always hear some "soft" occasional clicks & hiss.
themadproducer said:
4) What is your S3 model? (i9300?) and what OS version.
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AT&T GS3 with various ICS ROM's. I don't use AUX anymore because my favorite ROM (AOKP) doesn't have audio out capability when docked.
CZ Eddie said:
I've used the Samsung Infuse and also iBolt docks. Both have the split USB cable for charging & 3.mm audio.
I use the front AUX input on my JVC car stereo.
I don't remember any noise when clicking buttons?
But we're talking about AUX input which is analog, so when you turn the volume up with no music playing, you'll always hear some "soft" occasional clicks & hiss.
AT&T GS3 with various ICS ROM's. I don't use AUX anymore because my favorite ROM (AOKP) doesn't have audio out capability when docked.
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Thanks for replying Eddie. I am so sick of this troubleshooting this crap sometimes. I am very happy with the S3. It is a giant leap forward from my HD2...in most ways...but not all. I am suspecting the USB audio out on my S3 has a defect.
Right now, in the car, I have resigned to using the USB for power and the Headphone jack for audio send to the AUX input of my Sony car stereo on a custom wired Ibolt docking cradle. I still get some PROCESSOR noise when pressing the buttons but it is about 5% of the intensity of using the stock wired Ibolt, or KiDiGi desktop dock...or my hand wired Ycable. Without the USB charging wired up, there is NO NOISE whatsoever with either method.
Digital Output
Reading many threads last night, I discovered that with some roms/kernels, it is also possible to output pure DIGITAL audio from the S3 USB port into a select number of little affordable boutique like amps which decode and amplify the audio and power spkrs and headphones.
My first S3 had some weird noise when using bluetooth. So I drove over to my local corporate AT&T store and let them know. They walked out to my car with a demo S3 and we tested it and it didn't have any noise at all. So they swapped out my phone for a new one and I've been happy ever since.
Maybe you could try that?
Regarding boutique amps... this guy in one of my threads was talking about that. I didn't understand half of what he said.
http://www.diymobileaudio.com/forum...h-compatible-car-stereo-deck.html#post1674875
CZ Eddie said:
My first S3 had some weird noise when using bluetooth. So I drove over to my local corporate AT&T store and let them know. They walked out to my car with a demo S3 and we tested it and it didn't have any noise at all. So they swapped out my phone for a new one and I've been happy ever since.
Maybe you could try that?
Regarding boutique amps... this guy in one of my threads was talking about that. I didn't understand half of what he said.
http://www.diymobileaudio.com/forum...h-compatible-car-stereo-deck.html#post1674875
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Yup that's it. There are a few examples on youtube. Interesting how it's this TRADE SECRET feature. I mean, I have not seen this advertised anywhere and the places on the net where I found examples....the guys talk about it as if it's this common well known feature. Apparently, next to having one of these setups, the Iphone4 has the the best rating for sound/volume/curve output...almost neck to neck with a dedicated DAC...I think they call it!
I bet if I spent another $100+ bucks for one of these amps, and ran it in my car through a power Inverter (12v to 110v inverter), that I could run the Digital signal out without the interference of my USB analogue out issue. But, I am past that now.
Thanks for your input Eddie!
DAC direct solved this problem for me with Siyah Kernel.
This also happens when you are charged with a car charger and using the line out.
Sent from my GT-I9300
Arkanius said:
DAC direct solved this problem for me with Siyah Kernel.
This also happens when you are charged with a car charger and using the line out.
Sent from my GT-I9300
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Arkanius...are you saying...
1) You had the same terrible noise when charging in a car.... with usb audio analogue into aux input of car stereo?
2) and that you hooked up a DAC to resolve the car noise issue? If yes, would you mind sharing the DAC model with us and the cable used?
Although I may be digging up an old thread, it may be worth looking into (Currently majoring in Electrical Engineering and having completed two signal analysis classes).
themadproducer, were you able to get a spectrum output of the noise? If it just a set of static frequencies, a cascading array of notch filters may work out
EDIT: reading your mention of the USB charging, its quite possible that if the voltage converter is of cheap quality, the transistors involved in the voltage conversion from 12.0-14.0 Volts DC down to ~5.0 Volts DC may be giving off Radio Frequency noise, with the noise being picked by the audio cable due to physical proximity, akin to cross-talking in network cables ( a form of mutual inductance)
Is it possible to get the Hi-Fi DAC working with a Bluetooth headset?
I think this would do the trick for you http://forum.xda-developers.com/lg-v10/themes-apps/dac-fix-hi-fi-dac-everywhere-t3274457
But really ??? on Bluetooth??? I think you would just be using up more batter for no better sound due to what Bluetooth does.
It's impossible to have the DAC affect bluetooth sound. The data is sent to the bluetooth device.... You would need to plug in a aux cable and plug it in to a bluetooth adapter and well just don't do because you'll need to carry a powersource for that and the adapter and just no lol. DAC - digital to analog converter, so yeah it's still digital when sent through the phones bluetooth.
For the best bluetooth audio get devices that support aptx and if you can find devices that are either bluetooth 4.1 or 4.0.
TotallyAnxious said:
It's impossible to have the DAC affect bluetooth sound. The data is sent to the bluetooth device.... You would need to plug in a aux cable and plug it in to a bluetooth adapter and well just don't do because you'll need to carry a powersource for that and the adapter and just no lol. DAC - digital to analog converter, so yeah it's still digital when sent through the phones bluetooth.
For the best bluetooth audio get devices that support aptx and if you can find devices that are either bluetooth 4.1 or 4.0.
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Even if you plug an Bluetooth adapter in the aux output you will not use the v10 dac for your headphones. It would be: phone DAC - Bluetooth ADC - Headphone DAC.
So probably it sound worse after the extra converting and it defenetly different as if you plug it directly in the phone (dac color the sound)
[email protected] said:
Even if you plug an Bluetooth adapter in the aux output you will not use the v10 dac for your headphones. It would be: phone DAC - Bluetooth ADC - Headphone DAC.
So probably it sound worse after the extra converting and it defenetly different as if you plug it directly in the phone (dac color the sound)
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Ya, your definitely right. Converting to digital and analog back and forth 3 times is like taking a photo and putting it on a copy machine and then making a copy of the copy and another copy of the copy. It's not going to look good at all.
Yes the sound would get worse. I wasn't thinking when I posted this I am a audio engineer so I know a little something about audio lol! Having a long week and I wasn't thinking when I posted this just moved into a new house. I'm used to using viper4android on my Nexus 6 so when I couldn't do that on this phone I got frustrated. But anyhow I'll have to wait for root thanks anyways members of xda! Appreciate the responses!
Hey guys,
I would like to know, how I get rid of the "normal audio device" mode. I had connect Teufel Massive reloaded and the included headphones but it shows in the HIFI settings only "normal...".
Best,
Kalle
I believe those headphones have a removable cable, correct? If so, try unplugging the cable from the headphones, plugging just the cable into the phone, and only then plugging the cable into the headphones. This should trick the phone into "Aux" mode, which functions in the same way as high impedance mode.
For low impedance headphones without removable cable (or if the above doesn't work with your cable), buying a headphone jack extender like this works:
http://smile.amazon.com/gp/product/B00ZK43S4Q?psc=1&redirect=true&ref_=oh_aui_detailpage_o01_s00
Same procedure, plug in the jack extender without your headphones connected, then attach your headphones. Should display aux mode indication in the settings
Normally the amp only kicks on for full power with headphones that have an impedance of 50+ ohms, but the above trick should work. I've also read about another workaround involving making a phone call (like to your voicemail) then plugging in your headphones, but I could never get it to work, so the above method seems more reliable
unbeliveable - this works. Danks!
Has anyone figured out if you can use the phone as an "external DAC", use the ESS DAC but in a "line-out" mode for connection to a stereo via analog cable to their stereo line inputs? I tried using it normally, and the DAC showed as enabled, but the quality was not as impressive as I had hoped (in comparison to my Marantz UD5007 when playing a standard red book CD via it's analog output to the same input on my stereo).
thanks!
TinCanFury said:
Has anyone figured out if you can use the phone as an "external DAC", use the ESS DAC but in a "line-out" mode for connection to a stereo via analog cable to their stereo line inputs? I tried using it normally, and the DAC showed as enabled, but the quality was not as impressive as I had hoped (in comparison to my Marantz UD5007 when playing a standard red book CD via it's analog output to the same input on my stereo).
thanks!
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What kind of cable did you plug in? LG set it up to limit the DAC based on the cable plugged in, I'm assuming they did this as most users probably use earbuds and the DAC at full power would probably damage most earbuds. And I've found in my car, plugging the aux cable in when its not plugged into anything enables the DAC at full power. I didn't discover this, some on headfi did.
I'm using a 3.5mm to stereo RCA cable into the line inputs on my stereo. The phone shows the HiFi DAC as being enabled but it is not in Hi Gain mode, and I get the HiFi volume adjustment levels when I change the volume. So basically the same as when I use it with my IER's, but not Hi Gain mode like when I plug in my Sennheiser HD580's. Which is fine, but I'm wondering if I can bypass the amp while still using the better DAC.
thanks!