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I recently got a Jabra BT3030 for use as a HF and possibly music player. The only other choice in the shop was the SE DS200, so I thought meh the Jabra is a little cheaper and probably as good.
The HF works just fine: simple connection, buttons all work and people can hear me talking just fine. The only issue being the quirky music/volume after turning it off, but its no big deal.
What's wrong is the HORRIBLE, ABYSMAL, DOWNRIGHT UGLY sound output. There is a constant hissing in the background, its like a slightly offset radio station. I may not be an audiophile but every test/review I've read of this including user impressions say that the quality is "good", some even claim its "like wired earbuds". I dont call this good at all and its as far away from wired it can be.
However I've been unable to test it in another BT phone (wont work on my old SE K600i) as my main suspect is the phone, not the Jabra.
Unless of course, BT handsfree on the Diamond is meant to hiss? Or is the Jabra actually this bad quality? Anyone know that's used far more BT than me, as the Jabra is.. well, the only one?
I own a Anycom BH-100 and it shows constant hissing as soon as connected to any device (PC USB dongle, HTC Magician / Hermes / Diamond).
Good thing is, when the music plays it's nearly gone ( = can't hear it anymore).
Hm, I suppose it bluetooth really is that bad. It hisses when I try to connect to my HP portable too.
My BT-headset gives a rather friendly quality. No hissing whatsoever, but it does have a little second of lag very occasionally. Much better than my old Nokia 6300, in any case.
So you wanna tell us, that you don't experience any difference between your headset being switched totally off and being on but no actual music playing?
3030 user here.I'd described the hissing present but not so much bothering. Not that I have much BT HF experience before, used entry level Jabra BT135 with N6120c. There I'd say was little bit of less hissing.
tha_rami said:
My BT-headset gives a rather friendly quality. No hissing whatsoever, but it does have a little second of lag very occasionally. Much better than my old Nokia 6300, in any case.
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Click to collapse
Well lag/slight stuttering I would understand since it is wireless, but this is a constant background hiss independant of any lag.
Well f**k me sideways on a wheelbarrow!
The Diamond is not at fault at all. Its the Jabra that STINKS.
I tested a DS200 here at work at its got nothing of the hiss on the 3030. On the 3030, I clearly hear when its activated (*ELECTRONIC CLICK*hsssssssssss...) and likewise when it goes to sleep. On the Sony, I hear *nothing*. Its utterly silent. Well, aside from the music.
I'm getting this exchanged ASAP. And to think I was blaiming the Diamond
no problem with my diamond!. excellent quality both with my stereo headphones playing music or with car BT device. the connection is instantaneous and no background noises.
i must be lucky...lol. i have no lag with iGO8, my camera is taking good pictures and generally speaking i have nothing to complain about i am embarrassed...feeling left out
I thought I'd resurect my thread with an update... It appears that its NOT the Jabra at fault. I got it exchanged for a new one (the store didnt have a DS-200 at this time) and my conclusions stands at this:
- Listening closer to the Diamonds top speaker (like putting my ear to it, not good to do lol), it has the exact same type of noise. Its just that the volume of sound is so much greater its immiedietly drowned out. In other words, the Diamond behaves like this.
- Listening closer to the Diamonds package wire HF, it once again has the exact same type of noise, but here it is considerably lower and you really have to listen hard to it to hear: its not really noticable during playback even on lower volumes. So once again, this is how the Diamond sounds.
- The Jabra 3030 exaggerate the noise 10x, hence why its so annoying and with poor quality. Listening on low volume is drowned out by noise.
I got to see if I can try my buddies DS-200 again, listen closer this time... I'm starting to suspect that its a matter of how good the signal processing is on the Jabra, due to the Diamond sending out a noisy signal. If the DS-200 handle audio like the wired HF (same behaviour, much less noise), then its obviously "as good as it gets".
Sounds to me like there's something wrong with your Diamond, I can't hear any hissing through mine with the included (wired) headset or from the speaker on the device.
poedgirl said:
Sounds to me like there's something wrong with your Diamond, I can't hear any hissing through mine with the included (wired) headset or from the speaker on the device.
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Click to collapse
I suppose that's possible... But did you listen real close? I cant hear the noise from the speaker unless I stick my ear to it and the wired noise is very subtle, unnoticable during playback. Maybe I just got sensitive ears
I have tried the DS-200 again and got a background noise level that's much closer to the wired level, though a little notch higher. And its far, far lower than the Jabra. In particular, the electronic sound on turn on/off is not that noticable while the Jabra make my ear twitch.
murklor said:
I recently got a Jabra BT3030 for use as a HF and possibly music player. The only other choice in the shop was the SE DS200, so I thought meh the Jabra is a little cheaper and probably as good.
The HF works just fine: simple connection, buttons all work and people can hear me talking just fine. The only issue being the quirky music/volume after turning it off, but its no big deal.
What's wrong is the HORRIBLE, ABYSMAL, DOWNRIGHT UGLY sound output. There is a constant hissing in the background, its like a slightly offset radio station. I may not be an audiophile but every test/review I've read of this including user impressions say that the quality is "good", some even claim its "like wired earbuds". I dont call this good at all and its as far away from wired it can be.
However I've been unable to test it in another BT phone (wont work on my old SE K600i) as my main suspect is the phone, not the Jabra.
Unless of course, BT handsfree on the Diamond is meant to hiss? Or is the Jabra actually this bad quality? Anyone know that's used far more BT than me, as the Jabra is.. well, the only one?
Click to expand...
Click to collapse
I have a Jabra BT3030 and it works just fine in fact its perfect... Are you using a stock rom by anychance... if so what version...? you may want to use a cooked rom with the latest O/S.. as this does solve alot of BT problems...!
I am using the latest official (1.93 I believe it is). I dont quite see how a cooked rom will change the bluetooth performance of the handsfree (as a sidenote, I have tested removing those two bluetooth variables in the registry that according to another site would vastly improve quality: it did absolutely nothing)... But granted, I may just try it tonight if I ever do figure out which one to use, lol.
Alternate title: Why does my new eReader not make a great audio player too?
So, I went out and bought a Nook Color on Friday. I bought it for the Android hacking fun and doubt that I'll ever use it for its B&N "intended purpose". With that being said, I've noted that there is a hiss / static in the headphones any time the audio is enabled. There appears to be some self-muting going on on the device itself almost as if it is completely disabling the bias to the audio output transistors after some seconds wherein the hiss goes away but, any time there is active sound going on, the hiss and associated noise (likely RFI getting into poorly designed/shielded audio circuitry) is very clearly and annoyingly there.
I'm using very good headphones (Bose QC-3's) which sound wonderful on everything else I plug them into including my Droid and Milestone phones.
Has anyone else noted this very annoying audio issue on the NC? If I don't figure out some way to get rid of it, it's going to put a serious damper on using the NC to watch videos when I fly. (LONG trans-oceanic flights!)
I noticed a slight static noise from the built in speaker on my NC. I've not listened that much with headphones - and it was in a noisy environment.
johnopsec said:
Alternate title: Why does my new eReader not make a great audio player too?
So, I went out and bought a Nook Color on Friday. I bought it for the Android hacking fun and doubt that I'll ever use it for its B&N "intended purpose". With that being said, I've noted that there is a hiss / static in the headphones any time the audio is enabled. There appears to be some self-muting going on on the device itself almost as if it is completely disabling the bias to the audio output transistors after some seconds wherein the hiss goes away but, any time there is active sound going on, the hiss and associated noise (likely RFI getting into poorly designed/shielded audio circuitry) is very clearly and annoyingly there.
I'm using very good headphones (Bose QC-3's) which sound wonderful on everything else I plug them into including my Droid and Milestone phones.
Has anyone else noted this very annoying audio issue on the NC? If I don't figure out some way to get rid of it, it's going to put a serious damper on using the NC to watch videos when I fly. (LONG trans-oceanic flights!)
Click to expand...
Click to collapse
Usually portable audio front ends include a mute circuit to suppress the pop when the power for the amp turns on and off to save power. But that's besides the point...
My ATH-M50s give a lot of hiss when plugged into the NC, and at 38 ohms are somewhat less sensitive than most cheapie headphones that these amps are usually designed to. When I get a chance I'll try some higher impedance phones.
johnopsec said:
Alternate title: Why does my new eReader not make a great audio player too?
So, I went out and bought a Nook Color on Friday. I bought it for the Android hacking fun and doubt that I'll ever use it for its B&N "intended purpose". With that being said, I've noted that there is a hiss / static in the headphones any time the audio is enabled. There appears to be some self-muting going on on the device itself almost as if it is completely disabling the bias to the audio output transistors after some seconds wherein the hiss goes away but, any time there is active sound going on, the hiss and associated noise (likely RFI getting into poorly designed/shielded audio circuitry) is very clearly and annoyingly there.
I'm using very good headphones (Bose QC-3's) which sound wonderful on everything else I plug them into including my Droid and Milestone phones.
Has anyone else noted this very annoying audio issue on the NC? If I don't figure out some way to get rid of it, it's going to put a serious damper on using the NC to watch videos when I fly. (LONG trans-oceanic flights!)
Click to expand...
Click to collapse
Might be worth taking your headphones into a B&N store and trying another NC out to confirm its not just an issue with your unit.
Have the same issue with the NC and bose QC3 head phones. Plugged in a cheap pair of ear buds from the airlines and no hiss.
The amp is definitely noisy-- the worst I've heard since my 1st Gen iPhone. I guess they had to skimp somewhere.
Yes, pretty hissy sound. I can live with it, I think, but it's bit disappointing.
Ditto. The hiss using my Ultimate Ears makes the Nook Color unusable for audio or video in a quiet or normal environment.
It might work on a plane where the ambient noise is so high.
Pretty loud hissing sound with both apple earbuds and image s4's.
I noticed this too the first time I used Pandora...
Typically, for me and I assume it's the same for most pepole...
A reader likes to read in a quiet environment and therefore when they do decided they want to use the audio on their nook it is for music at a lower volume in a quiet setting. So this static / auto shutoff problem is blaringly obvious.
Any chance this will/could be fixed with an update?
If not then the audio feature will be useless for me
*edit*
Also... the static only gets worse (louder) as you up the volume. So listening to the music at a higher volume doesnt mask the static it only makes it worse
I have the same noisy audio. I am very serious about my audio equipment, but I don't put the NC in that category. Yeah, it would be nice if it sounded great, but the hiss would not bother me for video & I prefer to listen to a quality MP3 player if I listen to music. I would actually rather make adjustments to a dedicated player, while reading, than use my ereader to change screens & make adjustments. The other factor is the impact on the battery life. I guess maybe not a big deal on the NC?, but surely with an eInk reader. I hope you can find a way to live happily with yours.
Cheers,
kev
Ditto for me too. Hiss makes Pandora unusable when using my ultimate ears. I'm definitely disappointed, and a little less eager for flash support now.
Sent from my Nook Color using XDA App
I have no problems at all with audio on my nc. In fact i haven't had any of the problems i've heard on the forums as yet. Hope i never do
Sent from my LogicPD Zoom2 using XDA App
I think there might just be inconsistency in the NCs, neither mine nor my brothers have this audio hissing problem, or the problems with the bezel/frame, or any of the other problems the have come up on the forums. Maybe they are being built at multiple factories and some just suck? or maybe they just don't do any quality control? Who knows, I would check out the NCs with other headphones (although it sounds like you use these headphones all the time, so it's unlikely that they are the problem) and your headphones with other NCs.
OMG... the nook color sucks at playing music when using the Panasonic RP-HC700 Noise Cancelling headphones. The static is almost unbearable. I posted a recording of it on youtube under the user name MilkManMOM. (I can't post links and be helpful yet) Grrrr...I'm angry now at B&N.
No audio hiss from headphones on mine. If yours does, it's defective. It's also still under warranty. Stop just complaining to us about it and have B&N fix it.
MilkManTech said:
OMG... the nook color sucks at playing music when using the Panasonic RP-HC700 Noise Cancelling headphones. The static is almost unbearable. I posted a recording of it on youtube under the user name MilkManMOM. (I can't post links and be helpful yet) Grrrr...I'm angry now at B&N.
Click to expand...
Click to collapse
Try a different set of headphones. My Bose IE2s are fine, but my Senhiessers have a lot of hiss, especially when I use an inline amp.
My quick test leads me to belive that earbuds meant for mp3 players work fine, but head phones have issues. This might be an impedence issue.
sent from my NC
jerrykur said:
Try a different set of headphones. My Bose IE2s are fine, but my Senhiessers have a lot of hiss, especially when I use an inline amp.
My quick tests hav led me to belive that earbuds meant for mp3 players work fine, but head phones have issues. Perhaps this is an impedence issue.
sent from my NC
Click to expand...
Click to collapse
sent from my NC
jerrykur said:
Try a different set of headphones. My Bose IE2s are fine, but my Senhiessers have a lot of hiss, especially when I use an inline amp.
My quick test leads me to belive that earbuds meant for mp3 players work fine, but head phones have issues. This might be an impedence issue.
sent from my NC
Click to expand...
Click to collapse
Its either a Impedance issue or Frequency issue. When using my good Sony Headphones which are Frequency Response : 5-24,000Hz I get a Ton of Hiss, but when I'm using my Crappy Work Speakers which are Dell 215, which has a Frequency Response of 100 - 20000 Hz I get No hiss at all.
I have not tried the Official Nook head phones but they are Frequency response: 20 Hz-18,000 Hz
My guess is that our Head phones are just too good for the Nook and we are hearing the Hiss in the Higher Frequency Range that "Normal" Headphones often can't reproduce. I have had the same issue with cheaper MP3 players you end up hearing the electronics in the device working. Good MP3 players and other media device normally have this sound filtered out or have things shielded in such a way that it minimized the effect.
therealguppy said:
Its either a Impedance issue or Frequency issue. When using my good Sony Headphones which are Frequency Response : 5-24,000Hz I get a Ton of Hiss, but when I'm using my Crappy Work Speakers which are Dell 215, which has a Frequency Response of 100 - 20000 Hz I get No hiss at all.
I have not tried the Official Nook head phones but they are Frequency response: 20 Hz-18,000 Hz
My guess is that our Head phones are just too good for the Nook and we are hearing the Hiss in the Higher Frequency Range that "Normal" Headphones often can't reproduce.
Click to expand...
Click to collapse
Ummm, no. First, anything above 20kHz is inaudible. Second, if you do have extraordinarily rare "miracle ears" and can hear slightly above the normal range, nothing above 20kHz would sound like a hiss... it would be an incredibly high-pitched whistle. Try playing around with a tone generator and see for yourself what extreme high-frequency sounds are like.
Oh, and I assure you that your Sony headphones cannot produce 5Hz and 24kHz tones, no matter what their marketing department claims.
So, music was one of the things I was hoping my NC could do, but haven't had much occasion to try out in the month I've had it. Today I devoted a little time and attention to it:
My only headphones at present are some worn-out Apple earbuds, and I used them once to listen to an audiobook--the only thing I noticed was that the volume was quite low, but otherwise I won't base any impressions on that experience.
Today, however, I decided to compare some music player apps for sound quality, and tried out the NC on three different sound systems in the process:
The Nook Color's speaker.
Lined in to an iPod dock with an unshielded 3.5mm-to-3.5mm cable.
Lined in to a shelf stereo system with a 3.5mm-to-dual-RCA cable.
Okay, the built-in speaker is crap, obviously. It's tiny, points backwards, and there's only one. My cell phone speaker can drown it out, though the sound is marginally better on the NC. It's actually halfway impressive the sound quality they get out of the tiny speaker, but I still couldn't imagine using it for music. It's serviceable for tv shows, but I would probably still pop in earbuds if I had them handy.
Connecting to an outside sound system was what really underwhelmed me. For the two systems I tried, the NC produced drastically lower volume than anything else I've ever plugged into them. At what would be a loud volume for my phone, iPod, or an instrument, the NC's output (at its maximum volume) was barely audible. With the systems cranked to achieve an ambient volume, the sound was tolerable, but washed out in comparison to other sources.
There was also occasional skipping or stuttering in playback, which is really odd considering how well the thing handles video.
Click to expand...
Click to collapse
Is this consistent with everyone's experience? Is there any difference between stock and CM7 output?
I've seen threads here and there about improving volume and disappointment with output through the headphone jack, but I had no idea. I guess I've been sheltered using iPods and/or at least somewhat music-optimized phones (SE Walkmans), because I did not realize that audio output on a device capable of playing MP3s could be this bad.
the sound on my nook is good, the speaker isnt the best but its decent and audio with my panasonic headphones sound is awesome.
EDIT: i use cm7 and cant remeber much of when it was stock rooted, as that only satisified me for a whole 2 days before i went to nookie froyo then cm7.
I have no idea how sound works on the stock or rooted stock Nook since I put CyanogenMod on my Nook as soon as I got it. The sound seems to work fine on my headphones. I can almost reach the threshold of pain with a few tweaks of the DSP settings.
I do not use the built in speaker for much, but even it is better than nothing.
I'm running phiremod 6.1 on mine. I have found that the volume was inconsistent between versions, but I'm pretty pleased with the current setup. I do however have a different issue, which is related to the headphone jack. When I plug in my headphones, it seems like 75% of the time they don't work quite right. The obvious symptom is that one speaker is noticeably louder than the other, and generally the audio sounds like crap. Unplugging them and plugging them back in a few times will get things back to normal, but its a little annoying. This has been the case on every OS I have run on it.
there are terrible impedance issues with NC. If you buy this:
m.crutchfield.com/mt/www.crutchfield.com/p_127SNI135/PAC-SNI-1-3-5-Noise-Filter.html?tp=2653&osid=969403309&un_jtt_redirect
they will all go away. I know it says it is a "noise" filter, but it fixes impedance too. I own two of them, they keep me from pulling my hair out. Hint: if it doesn't work one way with a certain device, plug it in backwards using a M/F adapter.
i run cm7. using dspmanger... the nook color sounds awesome. I hook it up to my logitech thx speakers and cry.... because it sounds a helluva lot better than the $160 sound card in my pc.
without dspmanage... it sounds like garbage.
have fun.
I found this thread discussing NC audio in a little more depth:
http://forum.xda-developers.com/showthread.php?t=864064
I haven't heard the hissing they're talking about so much as a slightly washed-out sound and the crazy low volume. Someone else testing the NC with external speakers found that yes, it was considerably quieter than their Sansa MP3 player and iPod Touch, but the newest Kindle is quieter still.
technicalsquash said:
I do however have a different issue, which is related to the headphone jack. When I plug in my headphones, it seems like 75% of the time they don't work quite right. The obvious symptom is that one speaker is noticeably louder than the other, and generally the audio sounds like crap. Unplugging them and plugging them back in a few times will get things back to normal, but its a little annoying. This has been the case on every OS I have run on it.
Click to expand...
Click to collapse
I've had this issue with my crap Apple earbuds in my iPod before, and rather than yanking them out and jamming them back in, I found turning them in the socket and/or moving them in or out just a couple millimeters let me 'tune' them to where I was getting the best sound from both speakers. I actually found the same thing with my NC lined-in to my iPod dock via 3.5mm male-to-male cord.
If you are having trouble with low volume or hiss i suggest you use my app here:
http://forum.xda-developers.com/showthread.php?t=1104039
It requires kernel support so only my kernel works with it for now until the next CM7 nightly.
Note: My kernel works with both B&N 1.2 Froyo and CM7.
I've been having a problem with my Razr I which was purchased around the 11th October from Handtec, and I'm just trying to work out whether this was a faulty handset or whether it's common for the device, or affects a certain batch.
The issue is high levels of hiss / interference when a speaker is connected to 3.5mm jack while audio is not playing. Hard to describe the sound as it changes, however it's somewhere between hiss, ground loop and EM interference.
There's also an unpleasant thump when audio output turns on (i.e. just prior to playing audio) or off (a few moments after the audio output is stopped).
The hiss/interference noise reduces significantly immediately before and after playing audio i.e. it seems to go down to an acceptable level once the audio chip is taken out of 'sleep' mode and made active. I can only assume that this is because a noise cancellation circuit is removing the interference once the audio chip is activated, but that while it's inactive the unwanted signal is making its way down the cable connected to the 3.5mm jack.
This happens regardless of whether the device is connected to wall socket - and I've tested with a battery powered speaker - so this isn't a ground loop issue as far as I know. It is most noticeable when connected to an external speaker that's turned up to a decent volume, but is also audible through headphones. Please note that different headphones will show the issue to a different extent, as the impedance of headphones can vary quite widely. Through small earphones, the sound isn't too offensive, but through an external speaker or decent headphones it's completely unacceptable.
I tried temporarily disabling the MusicFX app and doing a factory reset – no luck with either unfortunately.
There is a report on gsmarena from someone who noticed the hiss. They got a replacement and there was no hiss on the replacement handset.
The thing that's confusing me is that this seems like two separate issues - though I may well be wrong.
1) poor EM shielding and/or cancellation circuitry inactive when audio is not playing and
2) no soft-start / soft-stop when capacitor(s) on the audio chip is charged/discharged and/or DC offset on the signal coming from the audio chip.
The phone's in the box ready to be posted back to Handtec, but just wanted to try and understand whether anyone else has experienced this issue? Just to note that although I haven't been through the returns process just yet, support from both Motorola and especially Handtec so far has been great.
http://forum.xda-developers.com/showthread.php?t=1930361
---------- Post added at 12:28 PM ---------- Previous post was at 12:23 PM ----------
tomrazri said:
There is a report on gsmarena from someone who noticed the hiss. They got a replacement and there was no hiss on the replacement handset.
Click to expand...
Click to collapse
that was me. the replacement was much better. still not upto gnex audio via headphones standard but the positives elsewhere on the phone (vs the gnex) mean i can live with the slight drop in audio quality.
Ah ok that's promising cheers. As you've mentioned in that thread, it's only really a problem when music's not playing and when the audio chip is activated/deactivated. No realm qualms with the quality of the audio chip itself as i wouldn't expect a studio grade dac in a phone, just the interference / lack of soft-start that was the dealbreaker. Fingers crossed my replacement will be from a different batch
my first unit came from clove. my replacement from amazon uk. good luck
Sent from my XT890
---------- Post added at 04:43 PM ---------- Previous post was at 04:28 PM ----------
build date on my replacement unit is sep 22 if that helps
tomrazri said:
I've been having a problem with my Razr I...
...The issue is high levels of hiss / interference when a speaker is connected to 3.5mm jack while audio is not playing. Hard to describe the sound as it changes, however it's somewhere between hiss, ground loop and EM interference.
Click to expand...
Click to collapse
I'm having exactly the same problem with my XT890 - bought from Amazon round 10th Oct., device build date is 22 Sept.
tomrazri said:
...seems to go down to an acceptable level once the audio chip is taken out of 'sleep' mode and made active. I can only assume that this is because a noise cancellation circuit is removing the interference once the audio chip is activated, but that while it's inactive the unwanted signal is making its way down the cable connected to the 3.5mm jack.
Click to expand...
Click to collapse
In my case the hiss is present only in sleep mode with no music on. I can hear silent thud roughly 3 secs after pressing power button to enter the sleep mode followed by the annoying hiss (only on left ear though). It's not loud at all, in fact it's barely noticeable during the day. It only drives you insane if even subconsciously.
---
tomrazri said:
This happens regardless of whether the device is connected to wall socket - and I've tested with a battery powered speaker - so this isn't a ground loop issue as far as I know. It is most noticeable when connected to an external speaker that's turned up to a decent volume, but is also audible through headphones. Please note that different headphones will show the issue to a different extent, as the impedance of headphones can vary quite widely. Through small earphones, the sound isn't too offensive, but through an external speaker or decent headphones it's completely unacceptable.
Click to expand...
Click to collapse
I think this is where the problem lies. First I thought its down to frequency response or even impedance. I think its due to different 3.5mm jack layout. I have no problem what so ever on my Klipsch S4A (10-19khz, 18ohm, 4 rings jack) but on my Koss PRO 4AAT (10-25khz, 250ohm, regular 3ring jack) its simply unbearable.
Shall I try to send it back to Amazon in hope the new piece will be flawless?
denny76 said:
In my case the hiss is present only in sleep mode with no music on. I can hear silent thud roughly 3 secs after pressing power button to enter the sleep mode followed by the annoying hiss (only on left ear though). It's not loud at all, in fact it's barely noticeable during the day. It only drives you insane if even subconsciously.
Click to expand...
Click to collapse
i 'think' i had the same hiss you are talking about on my first device. it was certainly noticeable as i mentioned before and unnacceptable i have no hiss on my replacement unit.
3 secs after any music has come to a stop, it sounds as if the internal amp (?) 'clicks' off. that 'click' is/was present on both devices i had but as that does not interfere with and music playing, i don't see that as a problem.
who knows if we are all talking about the same 'hiss' or not
Hiss on Razr I
I had exactly the same problem on first device but on replacement that hiss gone but not all together but 10x better . I have got 64gb micro sd card full of music and I love chillout stuff where any extra noises spoils listening pleasure . Btw my device was prom phones 4 u
Replacement received. Hiss/EM interference and the pop still there :crying:
ooo that is bad luck. as you got both from handtec, i can only assume they had a faulty batch that moto fixed on newer builds.
denny76 said:
First I thought its down to frequency response or even impedance. I think its due to different 3.5mm jack layout. I have no problem what so ever on my Klipsch S4A (10-19khz, 18ohm, 4 rings jack) but on my Koss PRO 4AAT (10-25khz, 250ohm, regular 3ring jack) its simply unbearable.
Click to expand...
Click to collapse
Well, you first thought it could be the impedance but you forgot it or what? It's quite common problem that not all the amplifiers like all headphones. Can happen with hifi equipments too, but mostly mobile devices just don't have good enough output for high impedance headphones. Low impedance headphones are a bit more battery friendly.
I think people just looks silly walking around with big-ass-headphones. About the same as using tablets as cameras.
Anyway, my phone does have slight hissing noise with 18 ohm headphones, but I can live with it.
Sure I think this is probably not an issue for a lot of people, as I want to be able to output to speakers rather than just listen on earphones.
Agree big headphones look silly, I'd only wear them on long train journey's not strolling around
If it doesn't affect the way you use the phone that's fine, and for those people I don't think it should influence their buying decision. The gsmarena review calls out aux audio quality as an issue though and measures it in comparison to other phones, and it doesn't fare so well. It'd be interesting to know whether the situation's improved in later revisions.
If the interference and pop happened with other devices I'd understand it, but I've had no issues with various other mp3 players, smartphones and tablets feeding the same headphones and speaker systems.
Oh well, hopefully be able to buy in a month or so when I'm reassured they've fixed it.
tomrazri said:
If the interference and pop happened with other devices I'd understand it, but I've had no issues with various other mp3 players, smartphones and tablets feeding the same headphones and speaker systems.
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Click to collapse
i'm confused by what you say above 'not having issues with other smartphones'. i thought this was your first smartphone purchase according to your review on amazon...
http://www.amazon.co.uk/review/R15W...e=UTF8&ASIN=B008QBBDQ0&linkCode=&nodeID=&tag=
Perfect form factor and excellent battery life. Despite being a bit of a geek, this was the first smartphone I've bought, because it ticks all the boxes that no other smartphones have so far.
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Yep, phones of friends don't have the same issue. It hasn't been a problem with some models of HTC, iPhone and Samsung that I've tried with the same speaker systems. I imagine there are plenty of older Motorola handsets that don't have the same issue too so it's nothing against them.
Posted this question on Motorola customer care, but recived a useless anwser. I don't know phone internals, but my guess is problem lies in incorects volume regullation. Just like with with connection of PC with amplifier, if you would turn your amplifier to maximum volume and try to regulate volume only with PC volume controll, you would get similar noise.
Here is my post to Motorola: h**ps://docs.google.com/document/d/1R5ngSJzSjmjbsHPTqnEaUDa3h7oR4OC8l13hK-512uI/edit
and attached noise record: h**ps://docs.google.com/open?id=0B4n8pwAEMymPdHpXUmJHeEV3eVk
There's a hissing/static noise whenever audio starts. If I pause it'll stop after a few seconds. Anyone know the cause of this?
I'm also interested in this. When I tried playing in my car, firstly I thought it could be software or some equalization problem. But, even deactivating all, that hiss continued so maybe it could be the quality of audio cable (quite poor).
Trying at home with a quite decent pair of earphones: Sennheiser IE8, I still can hear the hiss. It is much less hearable (suppose less amplification of sound, I've been listening music at maximum level to detect it), but also here.
I think there are only 2 possibilities: bad software/ROM implementation or defective/bad hardware. The defective hardware is rare, I've read some opinions and all say more or less the same... I expected some more quality of sound, and more if it comes from Sony...