[Q] [VRZ] Volume problem with SCH-i815 (Tab 7.7)? - Galaxy Tab 7.7 Q&A, Help & Troubleshooting

Hello,
There is a problem with the Verizon SCH-i815 (and maybe the P68xx also). The volume cuts in and out as if some sort of AGC is in action. The problem happens with low level music: piano, light strings, quiet jazz or even rock music that starts off quiet and then builds up. There has to be sections of music that is *near* silent for a couple of seconds or more. Music by ELO, The Moody Blues and others are recorded this way.
The problem isn't an isolated issue, it's not an isolated faulty jack, it's not faulty ear/headphones. I've tried several good ear/headphones of varying impedance -- 16ohm to 60ohm and sensitivity. It could be a circuit design flaw concerning the jack sensing or firmware configuration. The sound chip is Yamaha.
Easy to reproduce:
MATERIAL:
1. Samsung supplied "Music Player", no EQ
2. Samsung supplied music file "Silky whisper.mp3"
3. Samsung supplied earphones, white with button and mic (I think it's pretty generic to Samsung)
Steps:
1. Start Music Player.
2. Make certain volume is all the way down and the sound is muted (slash through speaker)
3. Press the volume up button once, twice (once to unmute and one step higher)
4. Play music file. Note how the piano cuts in and out throughout the song, especially during the opening of the instrumental.
Do any other 7.7 users experience the problem? The problem exists with the Samsung 7.0+ as well. The 7.0+ uses a Yamaha sound solution as well. The problem does not happen with the Galaxy 5 Player (Wolfson).
Anyone familiar with the Samsung/Yamaha sound chip? There do appear to be sound configuration files in the /etc/audio.
Thanks!

Because of all the activity surrounding the SCH-i815, I would like to revisit this problem.
The problem with low level volume fluctuation still exists in update LP10. Unbelievable. With sustained low level music the volume cuts in and out at low volume levels (a couple of volume steps at most). The beginning of Steely Dan's "Rikki Don't Lose That Number" or Pink Floyd's "Echoes" that open quietly are just a few song examples. I've called Samsung, reproduced the problem with all Samsung hardware and a Samsung music file. No response. I'm just stumped. I suspect that it's overeager noise suppression but haven't found any setting (customer or parameter files) that have any effect.
The problem does not happen with CM9, CM10, or Paranoid.
Could this be a kernel issue? The Samsung 7.0 Plus had the same problem at one time. It's why I returned the 7.0 Plus. I have other devices with the same Yamaha sound chip model (Galaxy Player 5.0, Galaxy SII) and do not experience this problem with stock, CMxx, GB, or ICS.

TonyBigs said:
Because of all the activity surrounding the SCH-i815, I would like to revisit this problem.
The problem with low level volume fluctuation still exists in update LP10. Unbelievable. With sustained low level music the volume cuts in and out at low volume levels (a couple of volume steps at most). The beginning of Steely Dan's "Rikki Don't Lose That Number" or Pink Floyd's "Echoes" that open quietly are just a few song examples. I've called Samsung, reproduced the problem with all Samsung hardware and a Samsung music file. No response. I'm just stumped. I suspect that it's overeager noise suppression but haven't found any setting (customer or parameter files) that have any effect.
The problem does not happen with CM9, CM10, or Paranoid.
Could this be a kernel issue? The Samsung 7.0 Plus had the same problem at one time. It's why I returned the 7.0 Plus. I have other devices with the same Yamaha sound chip model (Galaxy Player 5.0, Galaxy SII) and do not experience this problem with stock, CMxx, GB, or ICS.
Click to expand...
Click to collapse
Did you try CM10 on the 7.7?

okashira said:
Did you try CM10 on the 7.7?
Click to expand...
Click to collapse
Yes, the problem does not happen with CM9, CM10 or Paranoid.

Related

Speaker volume increases after using earphones...?

I've got a problem with my Omnia 7. Inexplicably, plugging in headphones causes the speaker volume to be boosted substantially after the headphones are unplugged, with no change in the actual software volume level. I'm not sure whether this is a software problem or what (it certainly wasn't fixed in Mango, at least). Rebooting the phone is the only way I've been able to fix it (ie, reduce the volume to what it was originally).
I've heard of people complaining about the loudness and lack of volume variation in the Omnia, but I'm not sure if this is linked to that somehow.
If someone can test this out it would be great, if only so I can get my phone replaced if it's specific to my device. Just reboot your phone, and observe the loudness of the lock/unlock sounds before and after headphones are inserted and removed. It doesn't need to be tested on the Omnia 7 specifically, though - if it's a software issue it's likely to be present on other devices as well.
TLDR; all speaker sounds, whether that be from music, games, system sounds, etc, are louder after I use earphones, even if the volume number is the same. Rebooting it fixes it. If anyone with any device could test this it would be a great help.
Does no one else have this issue? I would appreciate it if one of the many Samsung Omnia 7 owners could test it, at least.
I just tested it and I dont see any change or boost in volume on my SO7.. does your music auto stop playing when you pull out your headphones?
Maybe I explained it incorrectly, here's a video of it:
youtube.com/watch?v=0g-y0r3Mdqk&feature=youtube_gdata
I sounds louder in reality, but hopefully you can see the increase. Thanks for testing it, though
But yes, the music does stop playing when I remove the earphones. The increase isn't limited to music - it affects all sounds.
I tested it again after seeing your video.. mine remains the same, no increase like in your device..
Infact after watching your video I think the first sound is miffed... after you plug in the earphone and out than the sound it makes is the original sound/volume..

Intl. Galaxy S3: Intermittent distortion in Audio played via stock music player

On my international Galaxy S3 (stock everything), while playing music over headphones (tried several brands), I hear intermittent distortion, it's like a buzzzz or a spark. If you're a casual listener you could miss it. The duration of buzz/spark is for a fraction of a second. It occurs at least 2-3 times in every song. When I go back and play the part again, where the distortion occurred, I am not able to hear it. Oh well, I know the recording is clean.
I am not sure if it's got to do with the CPU cranking to cater to a different process. I tried keeping Wifi, bluetooth, data, ... all off. I also removed all processes via the task manager + cleared RAM.
Please help. I can't live with this issue since I am so much into music and very picky when it comes to audio quality.
Thanks a bunch.
not an earphone problem
i have the same problem precisely as you describe.the drop or interference
is so momentary that the first few times it happens i think its a hesitation
in speech or a minute pause inthe music.its enough to irritate or spoil the
full enjoyment of your listening.
i dont think its the earphones because ive tried a few different pairs that i know
work perfectly with other players including another Samsung.I think i may have
to request a replacement if it is a permanent feature.

Any LG Tone+ bluetooth users here? question

So i have been using my Tone+'s for a while now and love them.
as soon as i upgraded my G-nex to 4.4 i had rediculously loud volume over BT. thought it was just a big in the build.
get my N5 yesterday, and i am having the same issues. i know the headset controls the volume now, but at its lowest setting, it is still pretty loud (louder than i would like)
am i the only one that has this problem? just curious
i have tried wired headphones and they are normal, i also tried a Jabra clipper BT headphone set and it was also normal.
how do 2 LG products not play perfectly together is beyond me.
Having the same issue here. For now, I'm using an equalizer and just lowering all the frequency bands to -13dB. Hopefully this gets fixed soon...
Same issues here. It's very frustrating as I also bought a wireless charging bad so I could be completely wireless at work.
It is Kit Kat issue on all devices that use the default Google Bluedroid Bluetooth stack, meaning Nexus devices and Google Play versions (other devices running a modified stack may not be affected).
Supposedly, it is an extension to Bluetooth AVRCP 1.3 that enables Bluetooth audio devices to directly control Android's system volume. It seems some genius thought two independent volume levels (headphone volume and handset bluetooth level) was too confusing for folks. Clearly they did not think about (or test) that some Bluetooth audio devices with their own volume controls might default to a very high or low level, and control of only the handset's bluetooth level would not provide sufficient range of adjustment.
So once again we have Goofle googing up bluetooth in Android. Please share your disappointment in the following threads so that we might see a fix ASAP. Guessing they are facing law suits for hearing damage if it is not addressed quickly.
http://productforums.google.com/forum/#!msg/nexus/X6Hwt2qMYDo/7qd-JGylQv0J
http://productforums.google.com/forum/#!msg/nexus/dsf7hQPesds/zWhIE27o2KwJ
http://productforums.google.com/forum/#!topic/nexus/uXzs0e3l7rI
http://productforums.google.com/forum/#!msg/nexus/b5h94ggUIac/qkBs9WUIh4oJ
I own the Tone (700) and tone+ and only the Tone+ have this issue. No issue when connected Bluetooth to my car to listen to music too
Jeimygirl said:
I own the Tone (700) and tone+ and only the Tone+ have this issue. No issue when connected Bluetooth to my car to listen to music too
Click to expand...
Click to collapse
Does your older tone and car support a avrcp 1.3?
In my car, it's just the opposite. I now have to turn the level on the phone to max to hear anything. Before 4.4 I could leave it halfway.
I have used tone+ on my s4 and n5. Both are often too loud. I have always had to adjust the headset volume, handset volume and then the equalizer in poweramp to get things just right. I love them for music but if I get a call it is always way too loud.
Sent from my Nexus 5 using XDA Premium 4 mobile app
Solutions Etcetera said:
Does your older tone and car support a avrcp 1.3?
In my car, it's just the opposite. I now have to turn the level on the phone to max to hear anything. Before 4.4 I could leave it halfway.
Click to expand...
Click to collapse
I am unsure what what is to be honest. But if it has to do with showing the songs/artist etc on the screen, then yes it does that. Does it with my S2, N5 and will do it with an iPhone (work). Car is a Honda 2012
The issue with the Tone + is that it powers up at medium volume level, and when connected to an audio source, Android 4.4 now maps the volume control on the Tone to system volume.
As a work around I have found that, after powering up the Tone +, if you press the front most volume rocker repeatedly until you hear the low pitch tone you can lower the volume. Then when you connect to your audio source it is not so loud.
I hope Google fixes this soon, but I have low expectations based on other Bluetooth issues of the past.
Have you tried changing the sound type on the Tone+? (Holding down both volume buttons at the same time) I know if I have it on normal, high base or high treble they all have different volumes. This may help.
I mainly listen to podcasts, so I always set the EQ profile to the 3rd one (treble up).
It looks like 4.4.1 update fixed the battle between headset volume and handset volume. I'm a happy LG owner!

Odd Sound Settings Behavior

Hi - wanted to share my experience with the s7, particularly the sound (media) performance.
Got the S7 (duos) last week, rooted, and pretty much happy with the snappy device (and I like the camera much).
What I've noticed so far (and not happy with these) are: bluetooth connection issues (too many related posts here and everywhere else so I won't add my rant) and the sound settings not staying put.
Here's my sound settings experience -
1. If I set up (Settings/Sounds and Vibration/Sound Quality and effects) and tweak the settings to my liking - equalizer custom, surround on, concert hall on, and adapt sound personalized, the resulting output to my bluetooth and wired speakers are acceptable (lower volume than I prefer but I can manage)
2. That sound set up will mysteriously disappear although the settings do not change (i.e. the switches and equalizer settings are as I've set them) and the only way I get them back is to toggle the settings.
Very odd. I've never experienced this before (I've had a GS2, GS4, a note 8) and a Sony Z5 (selling).
Has anyone else experienced this and what was your fix?
wujae said:
Hi - wanted to share my experience with the s7, particularly the sound (media) performance.
Got the S7 (duos) last week, rooted, and pretty much happy with the snappy device (and I like the camera much).
What I've noticed so far (and not happy with these) are: bluetooth connection issues (too many related posts here and everywhere else so I won't add my rant) and the sound settings not staying put.
Here's my sound settings experience -
1. If I set up (Settings/Sounds and Vibration/Sound Quality and effects) and tweak the settings to my liking - equalizer custom, surround on, concert hall on, and adapt sound personalized, the resulting output to my bluetooth and wired speakers are acceptable (lower volume than I prefer but I can manage)
2. That sound set up will mysteriously disappear although the settings do not change (i.e. the switches and equalizer settings are as I've set them) and the only way I get them back is to toggle the settings.
Very odd. I've never experienced this before (I've had a GS2, GS4, a note 8) and a Sony Z5 (selling).
Has anyone else experienced this and what was your fix?
Click to expand...
Click to collapse
I did not experience the same but there is another thing that is bothering me.
Sometimes Notification and System Volume gets changed with the same volume level whenever I change the Ringtone Volume level by pressing the volume buttons. it's like all these are stuck together.
I found that this issue is due to rooting the device. Some settings gets weird after rooting.
If i don't root, the phone works fine. No issues.
And if I increase the volume, we get a popup like "Listening at a high volume for a long time may damage your hearing". Upto this point the Sound will be minimum. If i increase just a bit more from that level, suddenly the Sound increases massively.
I have an issue with bluetooth as well. Not sure if it's related but I bluetooth Pandora through my truck, and I have my media volume turned all the way up so that I can just control it through the player installed in my vehicle. If I'm listening to music when I turn off my truck but leave Pandora open on my phone, paused of course, then start up the truck again the volume level is low as if it turns itself down to the "safe hearing level" setting, but when I go to raise the volume it tells me it's all the way up. This won't go away until Pandora moves on to the next song. It's kind of annoying because I don't want to blast my speakers when the song changes but I haven't found a solution. Maybe these are related because this only happens with bluetooth for me.
I think I may have had the problems before I rooted.
Anyone not rooted having similar issues on the sound settings changing?
(please, not don't post bluetooth issues here. There are many threads about that already)

Zenfone 6 audio sounds different from everything else?

I'm posting this based on my testing on various sources that the ZF6 sounds with my 3.5mm earphones sound different than my laptop, desktop, and galaxy S7. Desktop, laptop and my S7 sound identical.
Any rock song seem to be overly muffled on the ZF6 on my 3.5mm earphones and I can't seem to fix it. I have tried testing with various settings in AudioWizard and also tried disablling it to no avail.
Not sure if it was like this in Android 9 and also in Android 10.
Anyone else notice this?
I don't have any problem with audio. Have you tried another media player? I use Poweramp.
aleksander002 said:
I don't have any problem with audio. Have you tried another media player? I use Poweramp.
Click to expand...
Click to collapse
Tried different media player, youtube, twitch. Everything sounds off on the ZF6 compared to my mentioned examples.
Can you elaborate more about what exactly makes it sound off? Weird frequency response, some kind of sound effect, distortions/cracks? I will try to compare my phone once more.
aleksander002 said:
Can you elaborate more about what exactly makes it sound off? Weird frequency response, some kind of sound effect, distortions/cracks? I will try to compare my phone once more.
Click to expand...
Click to collapse
Sorry, English is not my first language.
As far as as describing the problem, there's no inherent "problem" with the sound per se, but most songs I listen to on a daily basis sounds very different and off in a really bad way. I've disabled AudioWizard, and also tweaked with the equalizer, bass, treble in AudioWizard and nothing.
I've kept my best in keeping everything same for testing. Like, listening to the same song, using the same earphones, and pretty much tried my best in keeping things in stock settings and same across my laptop, desktop, s7 and zf6 as best as I could.
I think there's some funky equalizer setting that is muffling certain "tones" in music and I can't access it or something. I have no idea.
Not rooted/locked bootloader if that makes any difference. No funky app or add-on that could possibly affect this.
Edit: try listening to this: https://m.youtube.com/watch?v=3x8geNo31yg
the first 30 seconds sounds so obviously different to me. If this is not the case for you then something is wrong with my zf6 whether by some setting or defective
I can't hear any significant difference between my Zenfone 6 and a Acer Laptop without EQs. The music is quite old and not a high quality one but other than that everything plays fine.
Hi,
I do not own a Zenfone 6 but did own a Zenfone 5 last year and listened to a lot of music. I was coming from an HTC 10(the brand I went back to).
I did experience issues with the sound quality on the Zenfone 5 both on the external speaker and through headphones. The problem being an eq setting (which I had no power over) that lowers automatically the volume when low frequencies (any kind of percussions or beats) played fom either a music player or streaming app. The result was a "wavy" sound where volume fluctuated in a noticeable way, plunging down when low frequencies kicked in (I guess it's a way to stay under a certain maximum dB level?). The rest of the frequencies sounded muffled and blended together. Basically there wasn't a good sound separation even through the headphone jack.
No setting on AudioWizard could solve the issue and it was widely reported on the ZenTalk forums.
I remember a software update which claimed to solve the problem but simply ended rising the max volume through the jack, mantaining the sound distortion as it was. I found no solution whatsoever and switched brand.
I don't know if this problem changed on the 6 but what you describe sounds to me almost exactly what I experienced on the Zenfone 5.
It sounds like there was an output limiter of some kind which was altering the sound to avoid speaker distortion. I didn't notice this on my Zenfone 6. I've never had an Asus before though.
I had several problems with the audio from the 3.5 jack after updating to andoid 10, especially with the fm radio. I had to downgrade to android 9 to fix it.

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