New awesome chinese handheld! [Archive] - ASSEMblergames.com

nukhem

11-03-2007, 01:28 PM

JXD 301 LTPS MP4 Player with NES/SNES/SMD/SMS/GB/GBA Emulators

Processor: ADI Blackfin 533 - 600MHz !!
Screen: 3.0" LTPS TFT, capable of displaying 16 million colors with a aspect ratio of 4:3
Supported Audio Codecs: MP3, WMA (32K ~ 320Kbps), APE, FLAC
Supported Video Codecs: RM/RMVB, AVI (XVid), FLV, MPG, MPEG, DAT
Equalizer: BBE, SRS, 10 Custom EQ and 7 Pre-set EQ
Frequency Response: 20HZ~20KHZ , 0dB± 3dB
Games: NES, SNES, Sega Mega Drive, Game Boy Classic, Game Boy Advanced and Neo Geo Emulator
File Viewing: GIF, BMP, JPG, TXT
Lyrics: LRC
Voice Recording: (WAV) Sampling Rate: 8kHz-320kHz
Input and Output: 5PIN USB, Dual 3.5mm stereo earphone output.
Language Support: Traditional Chinese, Simplified Chinese, English
Battery: 1000mAH
Playtime: 15hrs audio, 5-6hrs video.
Expansion Slot: SD slot capable of supporting up to 4GB
Flash Memory Capacity: 2GB
Interface: USB 2.0 HI-SPEED
Built in loud speaker
Easy to use Graphical User Interface
USB Storage Function
Firmware Upgradable

Videoreview: http://nl.youtube.com/watch?v=nRv7oJWTzS0

Review: http://www.mympxplayer.org/jxd-301-review-vp39408.html

Pretty awesome isn't it?

http://i181.photobucket.com/albums/x218/iixorbiusii/IMGP0674001.jpg
http://i181.photobucket.com/albums/x218/iixorbiusii/IMGP0688.jpg
http://i181.photobucket.com/albums/x218/iixorbiusii/IMGP0678001.jpg
http://i181.photobucket.com/albums/x218/iixorbiusii/IMGP0684001.jpg

Tachikoma

11-03-2007, 01:42 PM

http://www.assemblergames.com/forums/showthread.php?t=15918&page=2

But yes, it does look the dogs danglies!

s1xty

11-03-2007, 03:17 PM

wrong topic. sorry.

Yakumo

11-03-2007, 03:46 PM

It is an awsome hand held that's well worth picking up but just how good is the build quality. It is Chinese after all.

Yakumo

Taucias

11-03-2007, 03:53 PM

Problem is, it only has 4 buttons. So SNES/MD emulation is going to be limited.

Yakumo

11-03-2007, 04:15 PM

It has sholder buttons doesn't it?

Yakumo

karsten

11-03-2007, 04:37 PM

if they send out free devkits for it it might became more an interesting item.

andoba

11-03-2007, 05:16 PM

Website? :P

Barc0de

11-03-2007, 06:38 PM

price? It looks fine, but i m really afraid of the chinese build quality.

port187

11-03-2007, 07:25 PM

mp4nation.com seems to be selling them for $126.50 US based or $114 coming from HK on ebay
Looks like a sweet deal just hope it isnt going to fall apart after using it a few times :/

subbie

11-03-2007, 08:35 PM

They can be had for between $100-$130. The unit comes with 2GB of internal memory so the price is reasonable.

The unit is only 4 buttons. For MD is fine since most games are only 3 buttons anyways. Snes will be an issue but there might be a way to solve this (maybe buttons can be modded in, time will tell).

Anyways the most interesting thing about this is people from the GP2x/GP32 sceen are hopping on board. You can see the discussion going on at mp4nation forums.

Personaly I am going to have my GF nab me one on her trip back to china in december.

-- EDIT --
Just a note on emulator status

NES, SNES - said to be good (full speed, for the most part)
Sega Mega Drive, Neo Geo - said to be good with audio off, little laggy with audio on (maybe doing 30-45fps with audio)
Game Boy Classic - I don't know
Game Boy Advanced - said to be shit, slow & buggy

MottZilla

11-03-2007, 10:09 PM

I don't think it looks very sturdy. Honestly the Dpad looks shitty and the buttons aren't looking much better either. Stick to a PSP. Atleast I will. When you hear 600mhz cpu it sounds good sure, but the product can still be a pile of shit.

Yakumo

11-04-2007, 04:11 AM

-- EDIT --
Just a note on emulator status

NES, SNES - said to be good (full speed, for the most part)
Sega Mega Drive, Neo Geo - said to be good with audio off, little laggy with audio on (maybe doing 30-45fps with audio)
Game Boy Classic - I don't know
Game Boy Advanced - said to be shit, slow & buggyWell, that's just doomed it. How can SNES emulations be faster than Meag Drive? MD is well easier to emulate isn't it?

Man, It's not worth bothering with just for the Movie and MP3 player since I can do both of those on my phone in wide screen anyway. It really is a shame because having all perfect emulation plus movie and audio player in one unit of that size (PSP is way to big to put in your pocket) would be great.

Yakumo

opethfan

11-04-2007, 04:44 AM

Shadowlayer

11-04-2007, 05:49 AM

It doesnt looks that cheap, and the emulation status must be due to poor coding since if the processor is like an Xscale and runs at 600Mhz then it should be able to even emulate PSX games.

With help of the scene the emulation capacity could be pushed much further...

Well, that's just doomed it. How can SNES emulations be faster than Meag Drive? MD is well easier to emulate isn't it?

Not really, in fact there was a full Snes emu in the GP32 well before coders could sort out the audio issues in the MD one.

subbie

11-04-2007, 07:41 PM

Well, that's just doomed it. How can SNES emulations be faster than Meag Drive? MD is well easier to emulate isn't it?

Man, It's not worth bothering with just for the Movie and MP3 player since I can do both of those on my phone in wide screen anyway. It really is a shame because having all perfect emulation plus movie and audio player in one unit of that size (PSP is way to big to put in your pocket) would be great.

Yakumo

It all dpeends on what emulator they stole the source to. All the emu were definantly not coded from scrach and are just stolen open source emus (my money is on the GBA version being a rip of VBA). Genesis emu they probably took was a basic one and not a more advance emu.

Second the system has no GPU so depending how the port was done, the bliting/rendering stage could be a massive bottleneck. Like insted of doing color conversions early in palette emulation, they could be insted rendering to a cfb then doing a pixel convert on every pixel and then coping to the lcd.

Again it all comes down to how poorly the port was done.

MottZilla

11-04-2007, 08:16 PM

Emulating a processor isn't always the place emulation slows down most. Often times graphics emulation demands more time. SNES has a very complex graphics chip with some great features. The Genesis is more straight forward really compared to SNES.

But emulation performance first depends on the quality of the emulator, then they capability of the hardware. You could have some shiney Core 2 cpu but if an emulator is poorly coded you may only run at 5fps.

KuKzz

11-05-2007, 12:45 AM

I bought one, will get it in 10 days or so. Will post a small review here,

Barc0de

11-05-2007, 01:18 AM

speaking of which, are there any PC emus taking advantage of multicored processors?

opethfan

11-05-2007, 01:27 AM

speaking of which, are there any PC emus taking advantage of multicored processors?

SSF does.

Shadowlayer

11-05-2007, 02:16 AM

The Saturn emu right? how does it work? I mean, is just a "normal" use or it does tricks like actually emulating one of the SH2s in a core and the other in the 2nd core?

opethfan

11-05-2007, 02:56 AM

The Saturn emu right? how does it work? I mean, is just a "normal" use or it does tricks like actually emulating one of the SH2s in a core and the other in the 2nd core?

Yep, and I can only assume it does 1 SH2 per core, or the SH2s on one core and the VDPs\SH1 on the other.

I don't really know, as the developer doesn't seem to speak English (well).

Pikkon

11-05-2007, 03:07 AM

It looks pretty cool but I would just get a PSP.

subbie

11-05-2007, 03:50 AM

speaking of which, are there any PC emus taking advantage of multicored processors?

The ps2 emu does (sort of).

Barc0de

11-05-2007, 04:15 AM

The ps2 emu does (sort of).

wouldn't more classic emu designs such as PJ64 benefit from multiple cores?

opethfan

11-05-2007, 04:18 AM

wouldn't more classic emu designs such as PJ64 benefit from multiple cores?

1) Older PCs weren't usually dual core, when these emus were written.

2) They don't need it. Dual core can be hard(er) to implement, so it's only usually put in when the performance benefit is justified and when the system being emulated in multicore.

Barc0de

11-05-2007, 04:19 AM

well .. those points I am aware of but:

cant someone use one core to do R4300i and RCP on the other core? wouldn't it be more accurate than D3D?

A saturn emulator comes to mind when discussing about multiple cores.

Shadowlayer

11-05-2007, 04:39 AM

cant someone use one core to do R4300i and RCP on the other core?

Yeah but why? N64 emulation is already perfect even on obsolete computers:nod:

But that may work in the GP2X which has a dualcore ARM9.

subbie

11-05-2007, 08:01 PM

wouldn't more classic emu designs such as PJ64 benefit from multiple cores?

Sure if only RSP/RDP were hand emulated LLE style insted of HLE. Other then that it's very difficult to make N64 work across two cores.

Yeah but why? N64 emulation is already perfect even on obsolete computers:nod:

But that may work in the GP2X which has a dualcore ARM9.

GP2X will never emulate the N64 and it all has to do with the lack of FPUs. There is no way you will get any considerable framerate with out an actual FPU. PSP is saved by the fact it is not only mips but has a FPU.

port187

11-19-2007, 11:29 AM

Just to update this thread, I've been playing with the JXD 301 for over a week now and can say it's not exactly what I expected but it's not all that bad!

Movies en Music run well as expected, normal divx/xvid movies of around 700 meg work fine (allthough widescreen movies are not automatically resized to fullscreen nor can it be set manually as far as I know and this makes the movie even smaller but still ok)

Games: well this is the main problem with the jxd, nice all those emu support on the box but they all (well as expected actually) have some kind of drawback except for the NES and most important Neo Geo :)

- NES: works fine.
- SNES: works fine but the sound of most games is a little messed up (goes too fast) besides that all games run at fullspeed and fine (excluding the FX games, they are rather slow)
- Sega MS/MD: run fine without the sound on, with the sound on some delays/slowdowns are noticable, and believe it or not the european roms dont play with the message they were not designed for the jp MD lol.
- GBA: many games crash or have other weird effects, some play so so.
- Neo Geo: only supports .neo extentions, these are really hard to come by but I eventually managed to get my hands on a few, they run great!

Anyway, for the price I can't really bitch too much.. I like the size love the screen, the sound is good and it helps me kill time on my way to work, just hope they will fix some issue's with a new firmware release..

I got mine from ebay for 90 euro (including shipping to holland from HK)

Johnny

11-19-2007, 06:20 PM

Found it being sold in MercadoLivre. (R$ 580 = 330 US dollars)

Check the auction, there are lots of pic:

http://produto.mercadolivre.com.br/MLB-65327386-_JM

port187

11-19-2007, 07:51 PM

Found it being sold in MercadoLivre. (R$ 580 = 330 US dollars)

Check the auction, there are lots of pic:

http://produto.mercadolivre.com.br/MLB-65327386-_JM

That's really expensive!

nukhem

11-19-2007, 08:05 PM

port187 : check your pm

Trenton_net

11-19-2007, 08:30 PM

port187

11-19-2007, 09:10 PM

This player looks like the generic units i've seen all over China. Just better form factor.

In regards to the emulation, perhaps someone could elaborate a bit more, such as configuration options (I assume no button reassign possible), quality, speed, etc. Odd, since all the videos I've seen seen show the snes music playback as being just fine.

Actually some play somewhat fine, but most sound weird as the sound runs faster then normal.

As for button reassign, there is an option while playing a snes game named 'set keybord' all the buttons are defined and the is a restore default option too so it looks legit, but i have no clue yet how to change the settings.. tried all the buttons but nothing seems to change.. (could be me) maybe somebody else can shed some light on this?

subbie

11-19-2007, 09:20 PM

I'm somewhat impressed that the emus run as well as they do on this system since guys on mp4nation have pretty much figured out what GNU emu source they stole to make the emus. I think once the homebrew scene figures out how to run code on the unit proper ports will be made.

Trenton_net

11-19-2007, 11:08 PM

Would suck if keys can't be re-assigned. Some consoles use more than 4 buttons, and some configs are more suitable for diffrent games (eg. KOF for neo geo).

port187

11-20-2007, 11:56 AM

Would suck if keys can't be re-assigned. Some consoles use more than 4 buttons, and some configs are more suitable for diffrent games (eg. KOF for neo geo).

While playing Neo Geo games the set keybord option is not available, looks like only snes has this 'option' that seems not to work too.

port187

11-20-2007, 01:32 PM

Battery life could be better too, while playing games or watching a movie the battery goes fast (2 or 3 hours max I guess)

Trenton_net

11-20-2007, 05:24 PM

Really curious about the music speedup. perhaps if there is enough intrest you can make a recording or video of what your experiencing.

port187

11-20-2007, 05:32 PM

Really curious about the music speedup. perhaps if there is enough intrest you can make a recording or video of what your experiencing.

I only have my mobiel to make video's but I guess it's all about the sound anyway, so i'll give it a go later today or tomorrow.

Baseley09

02-01-2008, 05:57 PM

I am now soon to be a JXD 301 owner, provided it shows up! Looks like the homebrew thing has died a death a bit no news going on which is a shame, seems a cool unit.

port187

02-01-2008, 06:11 PM

I am now soon to be a JXD 301 owner, provided it shows up! Looks like the homebrew thing has died a death a bit no news going on which is a shame, seems a cool unit.

It's a nice little unit, tho it crashed on me a couple of times and caused all the data on the internal 2gb to be corrupt, connecting it by usb and reformatting it helped but it was a pain to replace all the lost data each time so I sold mine eventually.

I had it mainly to play roms and watch movies, the rom part well besides NES it sucks.. all other emu's have some kind of issue going on (SNES is ok but sound is a bit messed) neo geo roms have slowdown, MD no sound or sound but slow and GBA is real crap and doesnt play any game decently.. as for the movies, providing you convert them to a smaller size/bitrate it will have quite some slowdowns playing normal avi divx/xvid movies.

But still what do you expect for that price? on the other hand if I am ever to buy a mp4 player again I would go for the gp2x. but I will definitly miss the size/weight and screen of the JXD!

Baseley09

02-01-2008, 06:15 PM

Im interested in buying the GPX2 also, tho for the meantime im sure the JXD will be cool to mess around with it, not holding out much hope on the roms side, only gonna use it for music seems neat-o for the price fo sho.

subbie

02-01-2008, 08:49 PM

I am now soon to be a JXD 301 owner, provided it shows up! Looks like the homebrew thing has died a death a bit no news going on which is a shame, seems a cool unit.

I have not kept up on it but i dont think it has. You just have to look for information since it's only 2 people doing it at the moment. Supositly they've figured a majority of it out already and can do input, sound and drawing. I'm still waiting on a way to inject apps to be able to test things (with out the need of additional hw).