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> What's With The Sound Quality?, i'm sure our Z's can do better than this
Dromede
post May 15 2007, 06:07 AM
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in the beginning, there was the Sharprom...it's music player was quite good, the sound was crisp and loud...but there was little bass response. and since it doesn't have an equalizer the problem could not be fixed. Then there was the PdaXrom which gave us Xmms... well, im here to discuss about the crappy sounds emanating from my (quality)headphones driven by Xmms. as i said the sound is crappy, apparently unbalanced and there is no way of fixing that since xmms equalizer doesnt work on our Z's. fine, i said to myself...just install some other player that has a working equalizer. So i hit the forums...And end up being seriously dissapointed....

apparently there is no music player with an acceptable working equ AFAIK.
Which is kind of strange 'cos it seems that our Z's sound chips(wolfson WM8750) have basic equ capabilities which can be seen on this link:

http://staging.wolfsonmicro.com/products/WM8750/

I also remember reading somewhere that our Z's have the same DAC as ipod's do, can anyone confirm/negate that?

So what's the problem? is it so hard to make a software interface to existing hardware dsp capabilities? And why doesn't xmms equ work?
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pelrun
post Jul 31 2007, 05:20 AM
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Hmm. Things appear to be going somewhat pear-shaped with my Z since I flashed the new kernel.

When I try listening to more than a few minutes of music in xmms my Z gets very confused. Everything slows down as if the Z is under heavy load; the audio breaks up, and the Z starts flashing the IDE access light... even though I'm not using anything from my microdrive, and even when all the partitions on it are unmounted. Additionally I can see the battery level in mb-applet-powerctrl start to plummet.

At that point, I have to force a reboot by pulling the battery; a graceful shutdown hangs when it tries to shut down the CF devices.

I was using the 3100 pdaXrom fastfpe kernel; I'll try the stock beta3 kernel and the nwfpe one and see if I can replicate it there.

Edit: ok, I forgot I've now got a swap partition, which explains the CF behaviour. But that still leaves something unidentified leaking memory until even basic operations trigger page faults. Can't seem to get it to happen again with the nwfpe kernel; will keep investigating.
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Meanie
post Aug 2 2007, 12:47 AM
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QUOTE(pelrun @ Jul 31 2007, 11:20 PM)
Hmm. Things appear to be going somewhat pear-shaped with my Z since I flashed the new kernel.

When I try listening to more than a few minutes of music in xmms my Z gets very confused. Everything slows down as if the Z is  under heavy load; the audio breaks up, and the Z starts flashing the IDE access light... even though I'm not using anything from my microdrive, and even when all the partitions on it are unmounted. Additionally I can see the battery level in mb-applet-powerctrl start to plummet.

At that point, I have to force a reboot by pulling the battery; a graceful shutdown hangs when it tries to shut down the CF devices.

I was using the 3100 pdaXrom fastfpe kernel; I'll try the stock beta3 kernel and the nwfpe one and see if I can replicate it there.

Edit: ok, I forgot I've now got a swap partition, which explains the CF behaviour. But that still leaves something unidentified leaking memory until even basic operations trigger page faults. Can't seem to get it to happen again with the nwfpe kernel; will keep investigating.
*


i've been using the nwfpe kernel and not had any problems so far... still testing further but the sound quality has improved dramatically! smile.gif
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adf
post Aug 2 2007, 01:18 AM
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Re pelrun's issue-- I've been using the fastfpe kernel for a couple of days -- no noticeable problem.
Though I suppose if the nwfpe kernel is more precise, maybe I should switch anyway, as there should be no performance difference? Is there any functional difference between nwfpe and fastfpe in pdax (given the lack of hardfloat requirements anyway)?
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eviLjazz
post Aug 2 2007, 02:47 AM
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QUOTE(adf @ Aug 2 2007, 01:18 AM)
Re pelrun's issue-- I've been using the fastfpe kernel for a couple of days -- no noticeable problem.

Okay, thanks for the feedback. Back when I was testing both kernels on pdaXii13 I experienced no problems either. I tested each one for several hours.
I haven't had a chance to return to pdaXii13 yet. Will do so on Friday when I'm compiling and testing Quasar on it. I've already changed it to compile against Qt3 and it is working on OS X in X11. So, not much left to do to finally get it working on pdaXrom/pdaXii13...

QUOTE(adf @ Aug 2 2007, 01:18 AM)
Though I suppose if the nwfpe kernel is more precise, maybe I should switch anyway, as there should be no performance difference? Is there any functional difference between nwfpe and fastfpe in pdax (given the lack of hardfloat requirements anyway)?
*

If you're running plain pdaXrom there won't be any performance benefit at all. Things change if you plan to use a chrooted Debian inside pdaXrom. The performance increase is noticeable for pretty much all Debian binaries that do FP ops.
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Posts in this topic
Dromede   What's With The Sound Quality?   May 15 2007, 06:07 AM
Dromede   anyone? anything?   May 16 2007, 11:46 PM
arniel   QUOTE(Dromede @ May 17 2007, 07:46 AM)anyone?...   May 17 2007, 01:05 AM
eviLjazz   Actually, I'm currently hacking the 2.4 driver...   Jul 3 2007, 10:05 AM
danboid   QUOTE(eviLjazz @ Jul 3 2007, 06:05 PM)Actuall...   Jul 6 2007, 01:49 AM
adf   QUOTE(danboid @ Jul 6 2007, 09:49 AM)QUOTE(ev...   Jul 6 2007, 08:26 PM
Dromede   you just made me really happy... :-D   Jul 3 2007, 10:36 AM
eviLjazz   It's almost finished. I just need to debug a p...   Jul 7 2007, 04:40 AM
zedkatuf2   QUOTE(eviLjazz @ Jul 7 2007, 01:40 PM)It...   Jul 14 2007, 12:59 AM
daniel3000   If a basic commandline-based solution for pdaXrom ...   Jul 14 2007, 12:34 PM
eviLjazz   I'm now getting the necessary kernel patches a...   Jul 14 2007, 01:02 PM
eviLjazz   Alright, here is the first test release: http://ww...   Jul 14 2007, 04:18 PM
daniel3000   hmm - kernel image? Isn't this simply a driver...   Jul 15 2007, 12:00 PM
eviLjazz   The audio driver for the WM8750 is linked into the...   Jul 15 2007, 12:59 PM
gaarder   QUOTE(eviLjazz @ Jul 15 2007, 12:59 PM)I can ...   Jul 16 2007, 01:08 AM
T3_slider   I think the best idea for getting it to work with ...   Jul 15 2007, 07:21 PM
adf   There is no way it can be done by making modules r...   Jul 15 2007, 11:41 PM
eviLjazz   Thanks for the feedback! Chances are low for t...   Jul 16 2007, 01:32 AM
eviLjazz   Okay, I've uploaded the kernels to my server. ...   Jul 17 2007, 12:55 AM
Dromede   will these work with pdaxrom and derivatives?   Jul 17 2007, 01:03 AM
eviLjazz   I simply don't know. I've only tested with...   Jul 17 2007, 01:31 AM
seiichiro0185   Well, I just tried the new kernel + wm8750mixer on...   Jul 17 2007, 06:56 AM
zedkatuf2   ...Am I correct in thinking that the actual compil...   Jul 17 2007, 11:35 AM
Dromede   cacko doesn't use X11. cacko is based on qtopi...   Jul 17 2007, 11:45 AM
zedkatuf2   QUOTE(Dromede @ Jul 17 2007, 08:45 PM)cacko d...   Jul 17 2007, 12:33 PM
Dromede   hmmm.... http://lists.arm.linux.org.uk/pipermail/l...   Jul 17 2007, 12:04 PM
eviLjazz   Here are my lousy FPE benchmarks: http://www.katas...   Jul 17 2007, 12:56 PM
zedkatuf2   QUOTE(eviLjazz @ Jul 17 2007, 09:56 PM)Here a...   Jul 17 2007, 01:16 PM
zedkatuf2   QUOTE(zedkatuf2 @ Jul 17 2007, 10:16 PM)OK, I...   Jul 17 2007, 01:55 PM
adf   wouldn' the thing to do be to patch the existi...   Jul 17 2007, 05:29 PM
zedkatuf2   QUOTE(adf @ Jul 18 2007, 02:29 AM)wouldn...   Jul 17 2007, 10:23 PM
gaarder   The new compiled kernel runs perfectly on my Cacko...   Jul 17 2007, 09:31 PM
eviLjazz   Alright, I installed pdaXii13 at last. It's qu...   Jul 22 2007, 07:30 AM
zedkatuf2   QUOTE(eviLjazz @ Jul 22 2007, 04:30 PM)Alrigh...   Jul 24 2007, 02:10 PM
Gorth   This will be excellent. Thanks!   Jul 24 2007, 03:35 AM
eviLjazz   Okay, that took a bit longer than expected. Sorry ...   Jul 24 2007, 04:42 PM
Meanie   QUOTE(eviLjazz @ Jul 25 2007, 10:42 AM)Okay, ...   Jul 24 2007, 05:04 PM
zedkatuf2   QUOTE(eviLjazz @ Jul 25 2007, 01:42 AM)Okay, ...   Jul 25 2007, 08:01 AM
Dromede   QUOTE(eviLjazz @ Jul 25 2007, 01:42 AM)Okay, ...   Jul 25 2007, 03:38 AM
eviLjazz   No. In pdaXrom all binaries are compiled with soft...   Jul 25 2007, 04:09 AM
Dromede   Ok. So how can pdaxrom users exploit fastFPE perfo...   Jul 25 2007, 04:45 AM
eviLjazz   Generally you can't mix soft float with hard f...   Jul 25 2007, 05:20 AM
Dromede   hmmm...Ok. this is a but too much for me to follow...   Jul 25 2007, 05:38 AM
eviLjazz   Make sure to format it FAT16. FAT32 won't work...   Jul 25 2007, 05:47 AM
Dromede   i tried reformatting to FAT16 as you suggested. ca...   Jul 25 2007, 07:37 AM
eviLjazz   Your links are okay. For updating the kernel you j...   Jul 25 2007, 09:46 AM
zedkatuf2   QUOTE(eviLjazz @ Jul 25 2007, 06:46 PM)Your l...   Jul 25 2007, 11:52 AM
danboid   I'm looking forward to seeing an updated pdaXi...   Jul 27 2007, 01:57 PM
Meanie   QUOTE(danboid @ Jul 28 2007, 07:57 AM)I wonde...   Jul 29 2007, 10:38 PM
eviLjazz   Thanks for the feedback. I'm glad it works for...   Jul 28 2007, 01:16 PM
tanjian2   QUOTE(eviLjazz @ Jul 28 2007, 09:16 PM)Thanks...   Jul 30 2007, 12:56 AM
zedkatuf2   QUOTE(eviLjazz @ Jul 28 2007, 10:16 PM)Thanks...   Jul 30 2007, 10:29 PM
iczer3   Dear evil_jazz, I tried it on my C3000 with pdaxi...   Jul 29 2007, 06:15 PM
adf   QUOTE(iczer3 @ Jul 29 2007, 06:15 PM)Dear evi...   Jul 29 2007, 10:18 PM
pelrun   Confirmed working well on my c3100, thanks! I...   Jul 30 2007, 07:38 AM
Meanie   QUOTE(pelrun @ Jul 31 2007, 01:38 AM)Confirme...   Jul 30 2007, 06:47 PM
Gorth   Is there any reason this new kernel and mixer app ...   Jul 30 2007, 07:42 AM
pelrun   Don't try this - the kernel is not for the c7x...   Jul 30 2007, 08:19 AM
Gorth   QUOTE(pelrun @ Jul 30 2007, 04:19 PM)Don...   Jul 30 2007, 09:07 AM
eviLjazz   Thanks for the feedback everybody! Really appr...   Jul 30 2007, 10:31 AM
pelrun   Hmm. Things appear to be going somewhat pear-shape...   Jul 31 2007, 05:20 AM
Meanie   QUOTE(pelrun @ Jul 31 2007, 11:20 PM)Hmm. Thi...   Aug 2 2007, 12:47 AM
adf   Re pelrun's issue-- I've been using the fa...   Aug 2 2007, 01:18 AM
eviLjazz   QUOTE(adf @ Aug 2 2007, 01:18 AM)Re pelrun...   Aug 2 2007, 02:47 AM
MrStaypuft   Firstly your media player looks fantastic - I...   Aug 6 2007, 08:08 PM
eviLjazz   Yep, that's right. Just put the the file zImag...   Aug 7 2007, 05:13 AM
matthis   Could someone ask for this to be included in the t...   Aug 9 2007, 02:19 AM
adf   QUOTE(matthis @ Aug 9 2007, 02:19 AM)Could so...   Aug 9 2007, 02:41 AM
eviLjazz   QUOTE(matthis @ Aug 9 2007, 02:19 AM)Could so...   Aug 9 2007, 01:24 PM
pyrotek   eviLjazz :- This has to be the best thing since.. ...   Aug 9 2007, 04:06 AM
eviLjazz   QUOTE(pyrotek @ Aug 9 2007, 04:06 AM)Some fee...   Aug 9 2007, 01:45 PM
pyrotek   QUOTEeviLjazz,Aug 10 2007, 07:45 AM Yeah, I think ...   Aug 9 2007, 04:30 PM
matthis   To EvilJazz: thank you very for your answer about ...   Aug 9 2007, 11:46 PM
Meanie   some feedback on the new kernel. I tried it on bo...   Aug 10 2007, 07:52 PM
eviLjazz   Thanks for the feedback and the comments! QUO...   Aug 11 2007, 07:51 AM
Meanie   QUOTE(eviLjazz @ Aug 12 2007, 01:51 AM)Thanks...   Aug 11 2007, 06:19 PM
eviLjazz   QUOTE(Meanie @ Aug 11 2007, 06:19 PM)I will n...   Aug 13 2007, 12:33 PM
adf   QUOTE(eviLjazz @ Aug 13 2007, 12:33 PM)QUOTE(...   Aug 13 2007, 01:09 PM
pyrotek   Still no luck with my Planex wifi card Still givi...   Aug 11 2007, 11:38 PM
eviLjazz   QUOTE(pyrotek @ Aug 11 2007, 11:38 PM)Still n...   Aug 13 2007, 12:21 PM
pepilo   Hi, I also tried the new kernel and wm8750mixer on...   Aug 15 2007, 06:09 AM
dwagelaar   Success on C1000 with Cacko 1.23 :-). Thanks very ...   Aug 15 2007, 11:20 PM
Meanie   QUOTE(dwagelaar @ Aug 16 2007, 05:20 PM)Succe...   Aug 15 2007, 11:30 PM
boardboyd   So any news whether you will be releasing your mus...   Sep 17 2007, 10:41 AM
eviLjazz   I really hope to have the first beta version of Qu...   Sep 19 2007, 02:55 PM
boardboyd   QUOTE(eviLjazz @ Sep 19 2007, 10:55 PM)I real...   Sep 20 2007, 07:24 PM
eviLjazz   I've released the Quasar Media Player. More de...   Oct 6 2007, 09:29 AM


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