I have Rockbox in iPod Nano, but it doesn't sound as good...

[Chronon]

. . . or the bass/treble settings (which are in hardware, and won't use any CPU).

Do the Bass/Treble settings work now?  I must have missed that one.

[Nik]

Since you say those graphs look normal then nvm... it seems like nobody here believe me. It's not placebo effects if it sounds obviously better on Apple FW.  

How do you know if it is not placebo effect if you haven't AB them blindly? Also, as safetydan said, you have the music on louder in Apple's OF- the general masses tend to equate louder with better.

Charles

It's like when I adjust them to a comfortable volume, iPod FW sounds clearer, the instruments sounds clearer. I'm not stupid you know, some things you don't have to measure them using a digital software to know the difference.

Thanks linuxstb. You seems to know what I'm saying. I'll play around with the bass settings to see if I can get the same results.  

[cpchan]

It's not placebo effects if it sounds obviously better on Apple FW.  

The only way to eliminate the possibility of your mind playing tricks on you (placebo effect: http://wiki.hydrogenaudio.org/index.php?title=Placebo_effect) is through blind testing.  

I'm not stupid you know, some things you don't have to measure them using a digital software to know the difference.

I didn't say you are stupid. I also didn't tell you to measure anything digitally. All I said was to do an AB blind test to eliminate the possibility of Placebo Effect.

Charles

[Nik]

Sorry that I misunderstood you charles.

Anyway I tried the bass and treble settings. It does sound better but when I listen to heavy metal, the sound becomes distorted at the lower volume than the iPod FW. (before and after I change the settings)

[cpchan]

Sorry that I misunderstood you charles.

No problem.

the sound becomes distorted at the lower volume than the iPod FW. (before and after I change the settings)

What is your setting in "Settings"-> "Sound Settings"-> "Volume"?

Charles

[Febs]

Whats WPS?

Anyway I done the test on Rightmark but what am I suppose to do now? I'll just post 2 graphs which I think make sense.

The quality for this file is 223 kbps VBR...

http://img412.imageshack.us/my.php?image=dynamical9.png
http://img164.imageshack.us/my.php?image=noiseaf0.png

These graphs aren't labelled.  What exactly are you measuring here?  And what file are you using to do the measurements?  RMAA has a set of test files that you should use that will allow you to measure frequency response.

[Nik]

Sorry that I misunderstood you charles.

No problem.

the sound becomes distorted at the lower volume than the iPod FW. (before and after I change the settings)

What is your setting in "Settings"-> "Sound Settings"-> "Volume"?

Charles

At around -20dB, the bass is distorted (default settings).

[Nik]

Whats WPS?

Anyway I done the test on Rightmark but what am I suppose to do now? I'll just post 2 graphs which I think make sense.

The quality for this file is 223 kbps VBR...

http://img412.imageshack.us/my.php?image=dynamical9.png
http://img164.imageshack.us/my.php?image=noiseaf0.png

These graphs aren't labelled.  What exactly are you measuring here?  And what file are you using to do the measurements?  RMAA has a set of test files that you should use that will allow you to measure frequency response.

First one is dynamic range, 2nd one is noise level.

[cpchan]

At around -20dB, the bass is distorted (default settings).

Hum, the setting is fine. The bass shouldn't be distorted.

Charles

[Nik]

I recorded some music again from RB and Apple FW using the song "This love".

Please test out for me...
http://www.wikiupload.com/download_page.php?id=175276

[Llorean]

Rather than including two recordings where we have no idea what you've set the config file to, why don't you A) Do an actual blind test or B) provide an original (not recorded from the player) sample clip where the difference is "obvious", if we listen to it in both firmwares, as you put it, so someone else here with a Nano can also do a test, and their own RMAA.

[Nik]

Rather than including two recordings where we have no idea what you've set the config file to, why don't you A) Do an actual blind test or B) provide an original (not recorded from the player) sample clip where the difference is "obvious", if we listen to it in both firmwares, as you put it, so someone else here with a Nano can also do a test, and their own RMAA.

All right then, if anyone has nanos here, try out with this clip.

One thing, when I recorded to my pc, the sound is more similar than I hear it on my (default ipod) headphones. Issit possible that iPod's headphones can't manage Rockbox's output, thus making it sound distorted?

Here's a clip I think makes a difference...
http://www.wikiupload.com/download_page.php?id=175290

Thanks anyone for helping.

[Llorean]

Are you listening to the exact same file in the Apple firmware and in Rockbox? The clip you've uploaded looks to be an MP3 transcoded from an MP4.

Are you listening to the original file in the Apple firmware, and the MP3 version in Rockbox?

[Nik]

Yes exact same file, I cut it short in Audacity though, posting the full song is illegal, isn't it? the music is live by REM too, I'm certain its in mp3.

Should I post more clips which I find has more differences?

[Febs]

Whats WPS?

Anyway I done the test on Rightmark but what am I suppose to do now? I'll just post 2 graphs which I think make sense.

The quality for this file is 223 kbps VBR...

http://img412.imageshack.us/my.php?image=dynamical9.png
http://img164.imageshack.us/my.php?image=noiseaf0.png

These graphs aren't labelled.  What exactly are you measuring here?  And what file are you using to do the measurements?  RMAA has a set of test files that you should use that will allow you to measure frequency response.

First one is dynamic range, 2nd one is noise level.

Try using the RMAA test files.