Support and General Use > Hardware

Ipod classic 6th generation output level too high

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Nine:
Hi there, I'm new on this forum, just have recently discovered Rockbox. I've never ever posted on a forum before so I don't know the procedure. You'll have to forgive me for hijacking the main poster. I too, have a 6th generation Ipod classic. My problem is that the sound difference from -60 to -59 dbs is too vast. I have very sensitive ears so I can only listen at about -59 dbs but I find this too loud and -60 is too low and it seems like there isn't a major difference between -59 and -58 dbs. I've tried various earphones, all feel too loud. Is there a way to tune this? Is this a bug. Can I get a frequency just meandering between -60 and -59. I know I must sound like Goldilocks (porridge is too hot, porridge is too cold) but please get me to the just right setting. After 30 - 60 minutes of listening to music at -59 dbs, my ears just hurt. The lowest sound setting on my old ipod firmware was just right for me. Not too low and not too loud. 

13grife37:

--- Quote from: Nine on March 29, 2015, 03:17:31 PM ---(...)I have very sensitive ears so I can only listen at about -59 dbs but I find this too loud and -60 is too low and it seems like there isn't a major difference between -59 and -58 dbs. I've tried various earphones, all feel too loud.(...)The lowest sound setting on my old ipod firmware was just right for me. Not too low and not too loud.

--- End quote ---

Well it seems like you really have sensitive ears... because i know nobody who listened to music at the lowest volume of his IPod. So I think no, this is not a bug. It is really quiet down at -59 dbs, I could use my speakers as earpods then... So if at that low range you want more customizability the only thing I can think of are headphones that have their own volume modificator that doesn't send a digital signal to the device but instead just lowers the volume that is put into it. Then you could try maybe at -57 dbs and change the volume of the headphones.
Bad thing is: I don't know any really good headphones with that feature. The only ones I have are Computer headsets.
I have a headset from Logitech for gaming purposes:
http://www.amazon.com/Logitech-981-000537-G430-Gaming-Headset/dp/B00CJ5FPUE/ref=sr_1_36?s=pc&ie=UTF8&qid=1430473084&sr=1-36

[Saint]:
It might be somewhat interesting to get hands on this device, or a device that fails in a similar way.

I have a feeling that this device is either:

A - Genuinely defective in a subtle way that affects us, but not the original firmware.
or
B - An as yet unseen internal hardware variant.

Of those two possible scenarios, I think we may be dealing with B.

I find it absolutely impossible that anyone could possibly perceive -59dB as too loud. With isolating in-ear monitors, that is going to be quieter than usual happenings and background noise events from usual everyday life.
Something else I just picked up on is that OP states that -60dB is too quiet, that's odd, because that should be the functional equivalent of mute. It should be completely inaudible.

It would be interesting to see the HW info in the OF debug screen, but that would require restoring the device to stock.


[Saint]

Nine:
Thanks for the reply guys. I reverted back to my old ipod firmware. I don't know if it's psychosomatic but I find the volume adjustment better on my ears. I have another problem though. I know that this has nothing to do with topic or Rockbox for that matter..Well it kinda does. One of the reasons I reverted back to my old firmware was because my battery life was acting erratic. It would be full but after thirty minutes of listening, it would empty out, especially if I scrolled through my files. It would shut down..Usually I'd give it a break for a minute or so then start it up again. I read up on battery types and changed it under settings to the battery that seemed to match the hardware on my ipod. This seemed to have no effect whatsoever. I love Rockbox. It has so many pros but I felt that in this case the cons (sound and battery) seemed to outweigh them. So I'm back on my ipod classic 6g 2.0.4 firmware. I've had to restore my iPod at least 5 times since last week. My library is 90 gbs big and I like to sync everything, especially since I have 148 GB of space free on my iPod. I found that if I tried playing certain songs, they would skip and my iPod would crash, it would tell me to connect to a power source. I'd try that old trick...Reset or wait a while and switch it back on. I'd be very lucky if it worked. I tried adding less music, about 11000 songs. It was working fine till I tried using one of my auto playlists. To cut a long story short, I found that if a playlist uses shuffle, my ipod crashes and I have to restore. If I play all my songs, or shuffle through them, my ipod crashes. So I can only use a percentage of my space and I can't shuffle. I have terrible OCD and I'm a completionist. I find this very hard to accept. I've run diagnostic scans and my iPod harddrive seems fine. It could be my battery though. The problem is most probably hardware related. I'm nearly certain of that but I don't want to go through the process of replacing parts. I've wasted too much time on customizing my iPod, I'd be happy to get a new iPod with the same size specs but that's nearly impossible without employing a small fortune. Sony is releasing a new MP3 player. It looks awesome and has 128 gbs of space but is expensive as hell. Do you guys know of any 160 GB click wheel iPod alternatives?

Anyway, do you guys have any quick fixes or advice.

[Saint]:
The reason why the setting you changed seemed to have no effect whatsoever on observable battery life, is because this setting has zero effect on observable battery life.

This setting adjusts a modifier for the estimated runtime remaining, which is something that is never usually displayed to the user anyway unless they specifically go looking for it. It pays to note that the calibration for estimated runtime is way off on this device anyway, meaning it wasn't ever accurate to begin with.

I am slightly confused, because you state at first that you acknowledge that the battery has nothing to do with Rockbox (because it doesn't), and then you go on to list battery under Rockbox as one of the flaws.

The symptoms you describe quite clearly describe failing battery chemistry, this is not something Rockbox has any control over.

If it seems to you as though this device ports has many problems, you are right. It does. But this is one of the reasons why installation of Rockbox on this device is not really officially supported at all*. That might make you think "Wait, what? But I installed Rockbox just fine!", to which I would say "But, where did your bootloader come from?".


[Saint]


*we only provide the binary, and a means to update an existing installation, but not any way of booting the binary provided

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