bass distortion
bass distortion
Ever since I got I-9300 last Dec, I have had problems with Neutron sound quality. The problem I have is periodically bass sounds are extremely distorted, even at very low volume levels. It sounds like a cheap speaker being overloaded with too much power -- except volume is very low. I have had it with a variety of file types, from MP3 to WMA. Same files and IEMs do not have problem on PowerAmp. I have tried both 32 bit and 64 bit DSP, and it is no different. It is more noticeable when bass is boosted in EQ, though this may be due to my IEMs (RE0) which are very weak in bass without a little boost. Everything is stock on the phone. The only mod I made is to turn up the h/w volume for headphones in default_gain.conf.
Please help! I love the new UI, but it does me no good until I can solve this distortion problem.
Please help! I love the new UI, but it does me no good until I can solve this distortion problem.
Re: bass distortion
> The problem I have is periodically bass sounds are extremely distorted, even at very low volume levels.
Low freq. will easily overload digital audio stream if you set too Low band EQ too high. Are you using EQ at all? What if you switch it off, problem goes away? Would you please clarify.
Also please check setup of Automatic Gain Protection in Settings. If you see RESET GAIN above 0 reset it with slider and confirm.
You could try to call Reset Gain & EQ from Settings too.
Low freq. will easily overload digital audio stream if you set too Low band EQ too high. Are you using EQ at all? What if you switch it off, problem goes away? Would you please clarify.
Also please check setup of Automatic Gain Protection in Settings. If you see RESET GAIN above 0 reset it with slider and confirm.
You could try to call Reset Gain & EQ from Settings too.
Re: bass distortion
Lowest two EQ bands are maybe 25-30% over flat. Preamp gain off. And volume is low too. On PowerAmp I can max out low bands and max vol with nothing like this. I have worked with AGP, and even turned it off. It seems to have no effect. Have reinstalled a half dozen times. Stumped! I did not have this problem with my GS2.
Re: bass distortion
Hey man.Solidus wrote:Lowest two EQ bands are maybe 25-30% over flat. Preamp gain off. And volume is low too. On PowerAmp I can max out low bands and max vol with nothing like this. I have worked with AGP, and even turned it off. It seems to have no effect. Have reinstalled a half dozen times. Stumped! I did not have this problem with my GS2.
1.check Q factor of bass
2. check again Preamp. Off NOT means no used. Kick it on then slide it below zero line abit, then kick off (off means jump to vol, automatically)
BW
Re: bass distortion
Thanks! I checked q factor. Lower makes it better, but it is still there.
I think I found a big clue though. I tried adding a FiiO E6 amp between i9300 and RE0s. The issue disappears. No matter how much I turn it up, there is no bass distortion. This makes me think that the issue is how Neutron + Android (4.1.2) handles high resistance IEMs. (RE0s are 64 ohm.) Or I need to tweak something to account for it.
I think I found a big clue though. I tried adding a FiiO E6 amp between i9300 and RE0s. The issue disappears. No matter how much I turn it up, there is no bass distortion. This makes me think that the issue is how Neutron + Android (4.1.2) handles high resistance IEMs. (RE0s are 64 ohm.) Or I need to tweak something to account for it.
Re: bass distortion
No. Not neutron reason cause it can handle 300 Ohm headphone in my case.Solidus wrote:Thanks! I checked q factor. Lower makes it better, but it is still there.
I think I found a big clue though. I tried adding a FiiO E6 amp between i9300 and RE0s. The issue disappears. No matter how much I turn it up, there is no bass distortion. This makes me think that the issue is how Neutron + Android (4.1.2) handles high resistance IEMs. (RE0s are 64 ohm.) Or I need to tweak something to account for it.
>> you tried with amp.....
If digital way was used , not all sound mod /tweak goes to the amp.
This case, find other reason , check other mod beat? Nozxooi? Acid mod? Clear bass. ..?
If the analog was use, it maybe a strange thing.
Re: bass distortion
Everything is stock Android 4.1.2. As I said in beginning, only thing I have changed is the h/w headphone volume. E6 is a headphone jack amp:
Headphone jack >> FiiO E6 >> headphone
Headphone jack >> FiiO E6 >> headphone
Re: bass distortion
Another clue on this: It seems to only happen when PowerAmp has been used previously. I have yet to hear problem when I reboot phone and start Neutron without ever using PowerAmp. Not sure what this means....?????
Re: bass distortion
> Lowest two EQ bands are maybe 25-30% over flat
May be try normalizing your tracks. Or you can try going for Substractive method: e.g. do not increase freq. but decrease others. In such situation you will never get overloaded sound.
Make sure AGC is active and also in its settings RESET GAIN shall be at 0 db.
> Preamp gain off
It is just a choice of current slider, Preamp gain setting (slider) is never ignored.
May be try normalizing your tracks. Or you can try going for Substractive method: e.g. do not increase freq. but decrease others. In such situation you will never get overloaded sound.
Make sure AGC is active and also in its settings RESET GAIN shall be at 0 db.
> Preamp gain off
It is just a choice of current slider, Preamp gain setting (slider) is never ignored.
Re: bass distortion
See my last post about Poweramp. There appears to be something that Poweramp sets, but does not release/reset when it closes. And Neutron expects "whatever this setting is" to be in its native state, but it is not due to being the way Poweramp left it.
Who is online
Users browsing this forum: No registered users and 37 guests