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nikemanny
Just Posting
2 Posts |
 Posted - 12/09/2005 : 01:37:42 AM
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Hi,
I installed the Core TCPMP Player on my Dell Axim X50V, and everything works fine except there is no audio! I do get this message "Player: Audio codec(MPEG4 AAC Audio, AAC0) not supported by the player" when I open the player. I'm not sure if this is due to my Dell pda or the core player program itself. Please help! |
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FJ
Posting Profoundly
208 Posts |
Posted - 12/09/2005 : 6:14:16 PM
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quote:
Originally posted by nikemanny
Hi,
I installed the Core TCPMP Player on my Dell Axim X50V, and everything works fine except there is no audio! I do get this message "Player: Audio codec(MPEG4 AAC Audio, AAC0) not supported by the player" when I open the player. I'm not sure if this is due to my Dell pda or the core player program itself. Please help!
I have a Dell axim too, I will check this out this WE.
Johan
Neuros
FJ |
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Madopal
Just Posting
6 Posts |
Posted - 12/10/2005 : 8:56:26 PM
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There appears to be a small problem with some encoding. On the Linux side, I get video, but the following error:
Opening audio decoder: [faad] AAC (MPEG2/4 Advanced Audio Coding)
AUDIO: 48000 Hz, 2 ch, s16le, 125.0 kbit/8.14% (ratio: 15625->192000)
Selected audio codec: [faad] afm:faad (FAAD AAC (MPEG2/MPEG4 Audio) decoder)
==========================================================================
vo: X11 running at 1280x1024 with depth 24 and 32 bpp (":0.0" => local display)
==========================================================================
Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
Selected video codec: [ffodivx] vfm:ffmpeg (FFmpeg MPEG-4)
==========================================================================
Checking audio filter chain for 48000Hz/2ch/s16le -> 48000Hz/2ch/s16le...
AF_pre: 48000Hz/2ch/s16le
AO: [oss] 48000Hz 2ch s16le (2 bps)
Building audio filter chain for 48000Hz/2ch/s16le -> 48000Hz/2ch/s16le...
Starting playback...
FAAD: Failed to decode frame: Unexpected channel configuration change
The "FAAD: Failed to decode frame" line is then echoed a bunch of times. I did some rooting around, and found this info from a Google:
https://trac.videolan.org/vlc/ticket/194
"I still have no idea what the cause is. However on ffmpeg-devel, there was said the following (long thread): http://mplayerhq.hu/pipermail/ffmpeg-devel/2005-August/003158.html
The best hint in the VLC forum thread came from Kpex with the lower sample rates of files with a lower bitrate. And the remark from the ffmpeg list also gives the right direction. As far as I remember, Menno changed the behaviour of FAAD2 *according to new MPEG specifications* at some point that AAC input files or streams with a sample rate equal or lower than 24 kHz are always assumed to be encoded with SBR if SBR is not signaled in the stream (which is nonsense in my opinion, but that's another story). So everytime someone encodes an AAC file at a lower bitrate than ~96 kbps with Quicktime or other non-Nero AAC codecs *without* SBR capability, this file normally has a sample rate lower than 32 kHz, but FAAD2 will automatically assume it's SBR encoded and double the output sample rate to correct this. So if this error comes up in VLC, you should ask how the user has encoded his file, i.e. with which application and if it uses automatic downsampling on low bitrates.
I don't know what happened after the implementation of Parametric Stereo decoding, but probably this would cause similar trouble if FAAD2 now assumes a file with very low bitrate and low sample rate to be mono (which AAC PS files are in a certain way). How all this leads to no output at all for such files in VLC is beyond me.
Were there any significant changes to faad after 2005-05-13 that might have fixed this? I would test, but that requires me to ask someone to bootstrap a CVS checkout, since bootstrapping faad on my mac doesn't work for some reason (don't remember)
I don't know it either, because I don't archive the faac-checkins mailing list on Sourceforge.net anymore on my PC. But it's still available online, so it's quite easy to read and search through it"
So, it looks like what is happening is that the audio rate is being set down to 24 Kbps, but not explicitly flagged as SBR. I dunno if that's a bug that's crawling around the AAC decoding libs or something you guys aren't doing, but it's something to be aware of.
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bubba
Just Posting
2 Posts |
Posted - 12/11/2005 : 9:19:01 PM
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I'm having the same problem on my old Jornada 720. I haven't checked on my Palm yet, because even though the website says the player supports Memory Stick Pro, it doesn't - no physical way to insert the media.
I can live with having to buy new media (thought I'm not happy about it,) but if I can't get the audio resolved, then I'll have to return it. Frustrating.
Please post back if you find a resolution.
Thanks,
bubba |
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Madopal
Just Posting
6 Posts |
Posted - 12/12/2005 : 3:05:26 PM
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Oh, and it also looks like out of box install of Windows Media Player 10 has some issues with it as well. I actually had either that or Winamp only play audio with no video (which sent me down the road to check the format).
So, clearly, there's some issue with 24 kbps AAC audio that's making this video output not get handled correctly by many popular players (I've tried xine and mplayer on Linux and Winamp and WMP on XP).
I haven't had any luck seeing video AND audio on any setup I have yet. Any suggestions? I'm 99% sure the data is being pulled down correctly (checked all the ports and wiring to make sure everything works). |
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FJ
Posting Profoundly
208 Posts |
Posted - 12/12/2005 : 6:33:24 PM
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I had links to a plug in ready to fix this, but realized that there is some legal issues: "AAC removed from official binaries because of intellectual property considerations" see here: http://www.freewareppc.com/multimedia/tcpmp.shtml
TCPMP support for AAC has been removed from firmware downloaded from all official sites. We are all about defending your digital rights, but I can not give you links to firmwares that are illegal. I believe TCPMP is working on this and will get in touch with them. We will keep you posted.
Johan
Neuros
FJ |
Edited by - FJ on 12/12/2005 10:33:48 PM |
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nikemanny
Just Posting
2 Posts |
Posted - 12/12/2005 : 10:19:44 PM
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Thanks Johan,
It worked! After I installed the plugin and did a soft reset on my Dell Axim X50V, the sound worked along with the video. It's great that I can use the Mpeg-4 Recorder 2 for my Axim, video ipod , and psp with little or no hassle. Watching ESPN Sportscenter on any of these three devices is worth the money. |
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bubba
Just Posting
2 Posts |
Posted - 12/13/2005 : 08:40:36 AM
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| Yes, I discovered through another forum that this has to do with needing the AAC codec plugin. I was advised to google for it, and entered "aac codec" and was directed to the right site. From what I understand, the old plugin works with TCPMP 0.66, but not 0.70 (but I may be wrong.) Things work fine for me now, but I can't believe this won't be a problem for neuros. How can they encode to a format for portabe players that can't be legally distributed? Hope it gets cleared up. |
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FJ
Posting Profoundly
208 Posts |
Posted - 12/13/2005 : 2:15:54 PM
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AAC support for handhelds
Here’s the story:
This looks like one more attempt by patent holders and Big Media companies to squeeze every nickel they can out of consumers’ pockets. TCPMP was supporting AAC until the 11-15-05, but has been forced to remove it from all versions of its TCPMP software. So, any TCPMP software downloaded after November 15th will not support the AAC audio format anymore. This was done quietly, and we didn’t find out about it until we followed up on your posts last night and this morning. We are in touch with the Corecodec team, and they are working on a next generation of software that could address this problem. We will keep you posted on the status. As always, we will do everything we can within the confines of the law to give you the ability to watch video content on whatever handheld you want.
In the meantime, the TCPMP change did not affect playback on devices that already support AAC (including the PSP and many others), and we are looking for options to solve the problem for those that will be affected (such as Pocket PC owners). Our first choice will, of course, be a free and legal software (as we thought we had with TCPMP). We will look into the FAAD2 software from sourceforge which seems to be the only free otpion available for now, but some testing is needed. If none of these prove workable, we would then recommend some software available for a fee (like Kinoma and others).
We’re all in this together, and any help or feedback you guys can provide would be a big help. Just remember to look for legal options only and do not post anything that is illegal on our forums. If you do, we will have to remove it.
Thanks you for your help and understanding on this. Together, we’ll get this done.
Edit: somebody pointed out that VLC might work out, but we have not done any testing yet. Others recommended to use Nero ShowTime Mobile, it is not a free software though.
Johan
Neuros
FJ |
Edited by - FJ on 12/14/2005 11:14:07 AM |
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tom2
Just Posting
5 Posts |
Posted - 12/16/2005 : 4:48:04 PM
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quote:
Originally posted by FJ
We’re all in this together, and any help or feedback you guys can provide would be a big help. Just remember to look for legal options only and do not post anything that is illegal on our forums. If you do, we will have to remove it.
Thanks you for your help and understanding on this. Together, we’ll get this done.
Hi Johan
I believe the easiest solution would be for Neuros to get together with the CoreCodec guys and sell the AAC plugin at a marginal cost (using e.g. PayPal/Payloadz) of 3-5 USD.
I assume you already had to cough up the 15'000 USD required by AAC for the initial licence fee and you also have the experience in handling the individual licencing per player. Additional costs would therefore be purely variable, as the fixed part has already been covered through Neuros' needs for their hardware products.
-tom2 |
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FJ
Posting Profoundly
208 Posts |
Posted - 12/19/2005 : 11:34:58 AM
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Tom2-
We are actually in touch with Corecodec to look into this. I can not tell you how things will be done yet, but I sure hope we will offer a good option for our customers soon.
In the meantime we welcome any suggestions from users who have used successfully other softwares.
Thanks
FJ |
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FJ
Posting Profoundly
208 Posts |
Posted - 12/21/2005 : 10:07:13 PM
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Has anyone tried Mplayer yet? If so, let us know how it went.
FJ |
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Madopal
Just Posting
6 Posts |
Posted - 12/21/2005 : 10:30:44 PM
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Hey Johan,
I originally tried on Linux. I went through the searching because neither mplayer or xine would work. I haven't tried the link you provided yet, but I'll check it out. FAAD appears to be having trouble, and both mplayer and xine tend to use the same libs.
I did think it was odd to see an open source friendly company like yourself using AAC for the audio, but then I looked into it and saw that it was an MPEG4 thing. Sneaky them getting a proprietary audio format in with that.
Anyway, I'll check your link and see if there's anything I can work with mplayer or xine. |
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Madopal
Just Posting
6 Posts |
Posted - 12/21/2005 : 10:35:53 PM
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Whoops, just noticed that your link is for Pocket PC.
I was talking about running mplayer on x86 Linux. My bad.
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Madopal
Just Posting
6 Posts |
Posted - 12/21/2005 : 10:39:30 PM
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But Johan, the problem I was talking about above was using FAAD under Linux, and it seems to be not playing any audio, either. So I'm not sure that'll work for you.
Sorry to cross post here, as my problem has been on the PC side, not on the PDA side, but it seemed that there might be a related problem across platforms. |
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tom2
Just Posting
5 Posts |
Posted - 12/22/2005 : 04:17:34 AM
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quote:
Originally posted by FJ
In the meantime we welcome any suggestions from users who have used successfully other softwares.
With the last series of Sony Clie handhelds (all with the HHE DSP engine), you can simply use the included "MP4 Player" to directly watch the recorded movies :-)
Officially, only the VZ90 includes the necessary codecs, but some research in the 1src.com forums show that it also works on other Clies - you just need to install the codecs from the VZ90 (legality a bit unclear - but it works on my TH-55 :-)
(Example thread is http://www.1src.com/forums/archive/index.php/t-69398.html)
-tom2 |
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FJ
Posting Profoundly
208 Posts |
Posted - 12/22/2005 : 5:23:11 PM
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We can not allow posts that might have some links to illegal sites and/or softwares. If you have doubts, you are better off not posting any links of info. Since we have taken a strong stand on digital rights and will certainly face some scrutiny, we have to offer legal options. I apologize in advance to the senders of posts we might have to edit or delete.
Thanks all-
Johan
FJ |
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birdsquared
Just Posting
2 Posts |
Posted - 12/28/2005 : 10:42:39 PM
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I am using Kinoma, which has an AAC decoder, but it cannot read the files created by the NMR2. The files cause my Clie TJ35 to reset. I have the NMR2 set to record in Economic QVGA mode. Is there some other setting I can change to get the files to be able to be played on my Clie, absent conversion with Kinoma Producer (which works, but is quite slow). Alternatively, can I use the codec from Kinoma, or Aeroplayer with TCPMP?
I sure hope there is an alternative to always converting with Kinoma Producer...
j |
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No Audio On Dell Axim X50V
