Rockbox: Clip+

[HiDeF]

Originally Posted by dfkt

Here's the official v2.0 bootloader: v2.0-bootloader-sansaclipplus-01.02.13-dual_boot.zip

Roger that" dfkt

Thank you

[CrowdAds]

[Artmuzz]

The new Bootloader has fixed the problems I have been getting with my clip+ not switching on at times However, I have downloaded the latest Rockbox build and I am getting the low volume problem. I have tried adjusting the volumes setting in the sound settings but the volume seems to be a bit lower than on the Original Sansa firmware Also on this recent build, the battery seems to drain alot faster than on the Original Firmware.

Art

[ju0n]

is anyone else getting the lower pitch and speed problem or is it just me?

[funman]

Can you record some file with your sound card and provide recorded audio + original file ? pitch and speed are fine for me

[saratoga]

Also double check that you haven't changed the pitch and speed settings in rockbox

[ju0n]

Originally Posted by funman

Can you record some file with your sound card and provide recorded audio + original file ? pitch and speed are fine for me

http://www.mediafire.com/?kgzzzvv42vx

Originally Posted by saratoga

Also double check that you haven't changed the pitch and speed settings in rockbox

yup, checked. both at 100%.
i had to make both pitch and speed to roughly 101.2% while playing to let it play close to the original.

[jsmaye]

Originally Posted by ju0n

http://www.mediafire.com/?kgzzzvv42vx
yup, checked. both at 100%.
i had to make both pitch and speed to roughly 101.2% while playing to let it play close to the original.

You have good ears - most people wouldn't notice a 1.2% variance.

[funman]

I can't make the difference either. The playback rate should not be 100% accurate but it shouldn't change by 1.2%: For 48kHz the real playback rate should be 0.16% higher, for 44.1kHz it should be 1.12% lower, for 96kHz (if such files exist) it would be 2.35% lower. I'm not audiophile so I can't tell if it matters. The real playback rate can be calculated (with integer divisions) as: clock_source = 240000000/128 divider = (clock_source + samplerate/2) / samplerate real sample_rate = clock_source / divider

[Adub]

Just wanted to post that with the 2.0 bootloader and r25972(100512) I've been able to run 2 full battery bench, it's nice and stable! Gonna keep doing them with newer releases, too bad i messed up the logs hehe.

[Artmuzz]

Originally Posted by ju0n

http://www.mediafire.com/?kgzzzvv42vx



yup, checked. both at 100%.
i had to make both pitch and speed to roughly 101.2% while playing to let it play close to the original.

Yeah, I notice the pitch difference on those two mp3's you uploaded. I guess the only solution is to go to the Pitch function on Rockbox that is what I have to do.

Anyway, is there anyone else having the low volume problem on the latest build of Rockbox as I feel it is a bit lower than the original firmware volume even when adjusting the EQ.

Art

[Nikolaus]

Originally Posted by Artmuzz

Anyway, is there anyone else having the low volume problem on the latest build of Rockbox as I feel it is a bit lower than the original firmware volume even when adjusting the EQ.

I think the volume is lower with rockbox too. But it's not a problem for me...

[florinp3]

Originally Posted by Artmuzz

Anyway, is there anyone else having the low volume problem on the latest build of Rockbox as I feel it is a bit lower than the original firmware volume even when adjusting the EQ.

Art

I've noticed that too. I think I read on the rockbox forum that funman is aware of the problem but doesn't know how to fix it. All I can say is that older builds were ok (before write support (or r25821?), r25493 for example). I had my comfortable volume saved in the config file at -4, now I have to go to +4.

[funman]

Yes the volume is a bit lower than the OF however I think the maximum is OK.

We can make it 9 steps higher however I have no idea how much decibels that would be and if we are already saturating the original audio at this point.

For now I prefer to keep the same code than other sansas (which could use these 9 more steps too).

EDIT: I checked, it seems the settings are identical to other sansas.
If you have a clipv1 and a clip+ or clipv2, can you compare OF max volume and rockbox max volume ? (compare OF and rb, and also clipv1 vs the other one).

If you want to change your rockbox build, edit firmware/drivers/audio/as3514.c function audiohw_set_master_vol and change "mix_r = 0x16" and "mix_l = 0x16" into any number. The value ranges from 0 (minimum volume) to 0x1f (31, maximum volume).

[dfkt]

Originally Posted by funman

We can make it 9 steps higher however I have no idea how much decibels that would be and if we are already saturating the original audio at this point.

I could do some RMAA tests concerning THD/IMD for you, if required.

[marc2003]

i see the clip+/v2 and fuze v2 have been promoted to the build page. yay.

as for volume, i can't tell much difference between the OF and rockbox on full whack. either way it's far too loud for my poor ears.

[Adub]

Yeah i listen at -20db with iems hehe and that is plenty for me, -14 if im wearing cans depending on environment.

Very stable for me lately, woooooo.

[skip252]

My results from max volume listening. Clip V1, Clip V2, Clip+ all produce a distinctly higher max volume in the OF. I really can't tell between the max volume in any of the Rockbox versions. They all are quieter than the the OF but after the pounding my ears just took I can't detect a difference between them. The max in Rockbox is WAY more than I would ever consider a comfortable listening level.

I tried a few builds on the V1 all the way back to the logging build saratoga posted quite a while ago and the results were the same. The top volume was lower but more than what I would ever listen at normally. BTW the higher max vol in the OF was very distorted.

I gave a 10-15 second listen with a blend of 16 and 32 ohm IEMs and 16, 32 and 64 ohm over the ears headphones in each firmware and with each player and build. The results were uniform.

[saratoga]

If you want to compare volume maybe just recording it with the windows "soundrec" tool is easiest.

[sanka]

Originally Posted by jsmaye

You have good ears - most people wouldn't notice a 1.2% variance.

1.2% doesn't sound like a big number, but in terms of pitch tuning, it's a pretty big difference.

I like to use the Clip v2 when practicing guitar. I can play along, on an in-tune guitar, with a track that plays in-tune in Play or in iTunes. It sounds fine: the guitar and the track playback are in tune. If I try that with my Clip running Rockbox, the Clip plays noticeably out-of-tune with the guitar. It plays about 1/5 of a semitone flat. 1/5 of a semitone flat is difference of about -1.12%. This seems like a small number, but if you heard two instruments that were tuned -1.12% different from one another, you would definitely be able to hear that they were out-of-tune with one another.

Sansa finally fixed their firmware's pitch bug with version 2.01.35 for the Clip v2. It came out in March. It made it to where I actually started using the Clip again. But I'd really like to go to Rockbox, so I hope that the Rockbox folks also fix their pitch bug.

[Mikerman]

Originally Posted by marc2003

i see the clip+/v2 and fuze v2 have been promoted to the build page. yay.

Thanks for pointing that out--very nice to see! Also so great to see the fast and furious work occurring now with the Clip ports--things really are feeling closer!