For the lazy reader:
Your HD2 probably suffers from an audio lag using the default media players. This is evident in the transformers movies and many other videos. You just may not have noticed it for a variety of reasons. There is no fix yet.
Coreplayer/TCPMP are not solutions, since they defeat the purpose of proper HW scaling and decoding for battery life/processor utilization. They also render the video improperly (bad scaling, colorspaces, etc), and Coreplayer doesn't even support AAC+ (HE-AAC) audio.
BACKSTORY
The first day I got my HD2 from TMOUS, I noticed that the included Transformers videos suffered from what appeared to be close to a 250ms audio delay. Sure enough, the problem was universal to all video files unless an artificial delay is introduced into the transcoding process. This means that every video file placed on the device will play back with the audio playing up to 250ms (about 1/4 second) late. This turned out to be a very common problem with the HTC HD2 and many devices seem to suffer from it (including some other HTC devices mentioned in this thread), particularly in video playback. This is a not a placebo effect and is very noticeable--in some videos/scenes more than others due to video pacing.
Before you post to say "Mine doesn't seem to do it," read the following and check again just in case--you'll be surprised. As I mention below, to some people with untrained eyes, even a 250ms delay (about 1/4 second) isn't very noticeable, and without careful attention, the mind can sometimes be tricked into thinking the delay somehow "isn't real." The proof? Testimony of many members (read this thread), and of course: Here's a video of me playing the new test clip below.
This problem is well known and is often referred to as a "video sync" or "lip sync" problem. All seem to describe this problem in which the audio ends up getting significantly delayed.
STATUS
A list summarizing the current understanding of the situation.
1. The audio lag is up to 250ms (100-250ms) for ANY a/v stream. Please understand that the duration of 250ms is 1/4 of a single second; in some slow scenes (or even slow speech), this problem is very difficult to detect. However, in any very fast scenes or speech, it should become strikingly and painfully apparent to even the most callous of observers.
2. It does appear that a minority of HD2 users insist they are completely unaffected by the problem, and they are very vocal about it. This does introduce the possibility that, in fact, contrary to all common sense, there may be differences in HD2 hardware that are quite elusive. Alternatively, there is some yet-undiscovered combination of settings, roms, and drivers in which this problem disappears. More likely in many cases is the possibility that the issue is simply difficult to spot in some people's chosen sample footage.
3. HTC has acknowledged the problem in some form but is doing nothing about it, either because of development cost (software issue) or hardware issues. Again, there is also the possibility that there are other factors tying the company's hands.
4. In theoretical terms, the class 2 SD card read speed is more than sufficient to maintain sustained data flow of, for instance, a 300kbps audio/video stream. However, the delay issue persists even with the smallest of encodes, and even when the files are placed in the phone's built-in memory.
5. The Snapdragon chipset itself has been repeatedly implicated as being the culprit behind the A/V delay. Other potential candidates include driver issues, ROM issues, and/or general software issues on the part of HTC.
6. It is absolutely not a codec issue. This is not speculation or conjecture, but certainty. There is an overwhelming amount of evidence to support this, including the use of different players and encoders that produce valid streams--which play back perfectly in sync on any other computer or device. If there is any software you are using that you claim "doesn't get lag," you either do not experience lag/delay issues on your device, or the software is introducing opposite audio delay to compensate, which isn't a solution at all. The latter is known to occur with some community-produced frontends specifically for the HD2 as a crude workaround for this issue. However, it is hardly necessary to stress that the dilemma of not only re-encoding every existing media file for the HD2, but also the obvious lunacy of producing invalid files specifically so this device can read them.
7. The issue is ROM-independent. Cooked and stocked ROMs produce identical results. However, some users report a slight decrease in delay when they disable processor scaling (i.e. lock the device near 1ghz).
WHAT YOU CAN DO
First, decisively determine whether or not your device has this problem, which a large number of HD2 units seem to have. To test this, play this video (or others mentioned in this thread) on your HD2 in Windows Media Player or the HTC Video Player. Also try the included Transformers movie if you have a TMOUS unit. If you have any other media players on the device, you may also play these clips in those players with default settings. Note that all of these files are properly encoded and exhibit no audio lag when played using a computer or other device (including the original HTC HD). Report your findings, along with your OS version, ROM version, radio version, and model of HD2 (i.e. TMOUS or "European"). Also indicate your purchase date or, if known, the date of manufacture.
Secondly, once you've confirmed you have the issue, contact HTC and issue a report/complaint (in other words, request that they fix the problem). To support your complaint, you may refer to some of the ticket numbers at the bottom of this post, which are relevant to this issue. Once your complaint is filed, post the complaint ticket number here. It is crucial that HTC understands the prevalence of this problem or they will not fix it.
Finally, propose a solution (optional). If you manage to change device settings or install software/drivers/tweaks to eliminate the issue device-wide without destroying the file's actual synchronization (i.e. it remains in sync on the computer, other devices, etc), please post what you did! Please, no touting random 3rd party "converters" unless you understand the approach used by these to escape this sync/lag issue.
Ticket numbers (HTC Support)
10GBCW02ENA001052
10GBCW12ENA000301
10USCW13ENA001524
10GBCW12ENA000421
10AUCW15ENA000117
10GBCW13ENA000299
10ZACW16ENA000014 (HTC's acknowledgment)
Further Reading
http://forum.xda-developers.com/showthread.php?t=612935
http://forum.xda-developers.com/showthread.php?t=617163
Another test video. This was the default test clip until I replaced it with my own above.
Sorry, George, its not everybody's doesn't do it. Seriously, no matter what you may think of my mind, etc. mine doesn't seem to do it.
I'm not trying to say the problem is non-existent, you might be right. I didn't investigate enough.
But to give my 2 cents; I am very familiar with video encoding, digital audio and video and everything related. On a PC or on a TV i have an eagles eye (ear) for spotting sync problems. But I haven't noticed a sync problem on my HD2 whatsoever after having watched several movies on it... and 250ms should be very, VERY noticeable. Just 20ms usually catches my attention right away.
barty22 said:
I'm not trying to say the problem is non-existent, you might be right. I didn't investigate enough.
But to give my 2 cents; I am very familiar with video encoding, digital audio and video and everything related. On a PC or on a TV i have an eagles eye (ear) for spotting sync problems. But I haven't noticed a sync problem on my HD2 whatsoever after having watched several movies on it... and 250ms should be very, VERY noticeable. Just 20ms usually catches my attention right away.
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I'm also very familiar with encoding. I also notice stuttering problems in the video I play, in addition to sync issues (even baseline AVC with 1 ref, bitrate capped at 1000kbps, LC-AAC audio at 64kbps). This problem was even present on the included Transformers movies (the same movies play fine on the PC-- but with the exact same sync issue on coreplayer and TCPMP on the HD2).
Do you have the TMOUS device? What radio and ROM version are you using?
One other interesting thing I noticed. When the volume is turned down to 0, the choppiness present in some videos or situations dissappears, and when the audio is turned back up the choppiness comes back (tried in HTC Media Player).
This might relate directly to the sync issues I'm experiencing. What if there's a problem with the audio module or chipset rendering in general?
Change your thread title. its misleading. just because your device and someones friends first cousin sisters ex boyfriend suffer from this delay doesnt mean that ALL HD2s are affected. and to claim that all apps are affected? do you have all apps that are out there? kind of farfetched to say its a widespread occurence when this is the first time anyone has claimed such a "MAJOR FLAW!!!"
DialecticThought said:
Change your thread title. its misleading. just because your device and someones friends first cousin sisters ex boyfriend suffer from this delay doesnt mean that ALL HD2s are affected. and to claim that all apps are affected? do you have all apps that are out there? kind of farfetched to say its a widespread occurence when this is the first time anyone has claimed such a "MAJOR FLAW!!!"
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Changed; happy yet? And I'm not so sure it's as "misleading" as you think. I've seen more with the issues than without. If it occurs on all the included videos and apps, I think it's safe enough to say it's a problem with all of them.
If you don't think your device has it, feel free to post to the contrary. It would help to specify what version of the device you're using.
Based on the responses I'm getting, the problem seems constrained to the new 1024 Leo units (the TMOUS devices). If you have such a device and don't have this problem, I (and many others here who complain about the sync--it's not just me) would love to know about it.
A little less arrogance, please.
no audio issues here either... TMOUS stock using CorePlayer in GDI
To OP
I have TMOUS hd2 with stock rom, since I read this thread, I watched Transformers couple times using built-in player and Core player, but I did not notice any audio lag.
You said 250ms audio lag, what programs you used to measure this number, how you measure audio lag in game? Karaoke game?
Thanks
The lag is measured qualitatively; I adjust the skew until I find that there is no more lip sync issues on the video files (basically I change the delay until the audio matches exactly with what's being shown). Then I observe that this audio delay is the same in all videos (including the stock). Then I notice that games are a bit delayed; since the 250ms appears to hold for all of the videos I've tried (the audio delay was set by an mp4 container flag), I simply assumed that the lag that is observable in games is the same; it appears to be the same magnitude, at least.
I noticed it in the Transformer movie as well. (This is probably the first time I played it and paid attention.)
TCPMP can't handle the Transformers movies. I can't notice any lag while playing another video file I had on my sd card. The quality is much lower, compared to Transformers.
curiousGeorge said:
I simply assumed that the lag that is observable in games is the same;
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You know what they say about assumption ay? lol
See second post on in this page.
TCPMP solved my problems (Audio sync in videos, I don't have any delay at all in apps etc though).
http://forum.xda-developers.com/showthread.php?t=617423&page=11
Don't know if that will help you out for your videos?
aceo07 said:
TCPMP can't handle the Transformers movies.
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Click to collapse
TCPMP runs 2.5 - 3 hour action films fine for me.
I've experienced no audio sync issues in the couple included games I've played with (all but Prince of Persia) nor any in the videos I've played (both Transformers and a couple other mp4's I've encoded with CloneDVDMobile). I'm not a big fan of games on these though, but the video capabilities have been THOROUGHLY tested on my unit. Oh, and all of this has been played from the supplied 16GB card and two 8GB cards (both made by Kingston) which I already had. I've played the videos using both the included "Video Player" and TCPMP (took a little work to get MPEG2s to play decently though).
Stock T-Mo US --NOT HardSPL or flashed yet.
OS: 5.2.21889.5.0.87
Manila ver: 2.5.20121412.1
ROM ver: 2.10.531.1 (82076) WWE
ROM date: 02/22/10
Radio ver: 2.08.50.08_2
Protocol ver: 15.34.50.07U
I have reformatted the memory card and only replaced what I still wanted that was originally on it. I have not hard reset at all.
The only app I have installed which might affect performance is BsB Tweaks, and the only settings I've adjusted are: Power Saving - OFF; Hidden Camera Modes - ON; Camera 8MP - ON; and Wifi N - ON (I was curious about what this does, but it's not something I need.. I'm turning it off now, now that I'm thinking on it).
To those of you experiencing these issues: Are you only seeing this problem with games? Or is it affecting movies too?
HTC_Junglist said:
TCPMP runs 2.5 - 3 hour action films fine for me.
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I did not say that TCPMP couldn't handle long films. It was very specific to the Transformer movies. More specifically, I meant the exact Transformer movie files that came with the US T-Mobile HD2. TCPMP was not able to play those Transformer movie files smoothly.
However I do notice the audio lag in the default movie player it uses to the Transformers movies. The video is smooth, but the audio is lagged a little.
I am experiencing the exact delay that is being reported.
All you have to do is actually watch a few minutes of Transformers. Its really annoying.
aceo07 said:
I did not say that TCPMP couldn't handle long films. It was very specific to the Transformer movies. More specifically, I meant the exact Transformer movie files that came with the US T-Mobile HD2. TCPMP was not able to play those Transformer movie files smoothly.
However I do notice the audio lag in the default movie player it uses to the Transformers movies. The video is smooth, but the audio is lagged a little.
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Click to collapse
No you just said "The Transformers movies", I have 2 transformer movies & TCPMP plays them both fine. They did not come with the handset like yours though, but they are both high quality of 2.5gb each (Don't know how big the issued ones are, I'm in UK here so we didn't get them).
So maybe it's an issue with the way they were encoded too as well as a hardware issue.
i don't have such an issue with mine... games and movies play fine... maybe you have slower ear sensors or faster vision lol .... and I am curious why do you advertise this in your signature?????? if you were writing in a sports forum and had some disability, would you write that down in your signature as well??
i have this same problem. I loaded my favorite alert sounds from my previous phone. They all get a half second to a second chopped off. So do my ring tones. I have not seen a fix for this on any board yet. You are not crazy.
DialecticThought said:
Change your thread title. its misleading. just because your device and someones friends first cousin sisters ex boyfriend suffer from this delay doesnt mean that ALL HD2s are affected. and to claim that all apps are affected? do you have all apps that are out there? kind of farfetched to say its a widespread occurence when this is the first time anyone has claimed such a "MAJOR FLAW!!!"
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Click to collapse
It's not actually the first time, there was a thread running for a few days not so long ago about the same issue. And as far as I can ascertain, most, if not all HD2's are plagued with this issue.
I have a TmoUS HD2 and I haven't noticed any delay in sound.
I'm having one huge issue with this phone, and that is it not staying connected to the 3G at my house. I can sit in my living room and have 3-4 bars of 3G service, as can everyone else in my family, and my phone will just plumb disconnect and give me that lovely error message that you must "dismiss" before going on. Now if it was once in a blue moon I might be more forgiving, but it's all the time, literally almost every 2-3 minutes if I'm surfing. I don't really want to hard reset my phone because I'm not sure it will solve the issue, so if anyone has any advice here that would be fantastic. This is a freakin expensive phone, and I would hate for it to not work right after jumping through T-Mobile's hoops to get it. My friend's HD2 also has this issue and it's quite frustrating for both of us.
Now on to my question. Is it possible for Windows Mobile to even play 720p video? I have an mp4 copy of Kung Fu Panda for instance, that is 720p resolution and only 800mb, with a total bitrate of less than 1200kbps, and none of the media players (Album, WMP, TCPMP) will play this file at all. I didn't figure it would be that big a deal for this processor but I'm just curious, it's kind of a pain to re-encode EVERY video for playback on the phone. I have some MKV TV shows that are smaller files as well but 720p resolution and TCPMP won't play them either. Anything with that resolution causes TCPMP to crash. I was curious as to whether this was the phone not accepting the resolution or the audio track, which is a 5.1 surround track. I love this website and searched for both of these issues and couldn't find anything useful, so I have to ask y'all
Well, Homestar1217, I am also located in the DFW area and have the same problem. I constantly have to go to wireless controls in settings and turn my Data connection back on! You're right! It's VERY annoying!
It's probably the codec/container that you're using for your 720p file that's the issue.
Svegetto said:
It's probably the codec/container that you're using for your 720p file that's the issue.
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Okkkkk... and in english? Please?
It is extremely annoying. If I hadn't already passed my 14 day return policy I'd be taking it back pronto. The new vibrant catches my eye at this point. Quite honestly I'm disappointed with this phone. Both browsers are sub-par, it took forever for me to figure out just the right bunch of settings on 3 different pieces of software for proper video conversion, swype has about a 25 second delay in the sms app before it lets me type, and mainly, it can't even stay connected to the network! I got this guy because of the processor, but it seems like all of the effort went into Sense, and no one tried to optimize the rest of the OS for the beast of a processor that it packs. Anyways, didn't mean to turn this into a complaint post. One 720p file is AVC with an mp4 container and video bitrate of 932kbps, and audio is AAC 6 channel at 278kbps. the other is an MKV with AVC video at 3476kbps and AC-3 audio at 384kbps, also 6 channel. I thought TCPMP would play those files but it crashed on both. I hope all that makes sense to you guys, it does to me
Homestar1217 said:
It is extremely annoying. If I hadn't already passed my 14 day return policy I'd be taking it back pronto. The new vibrant catches my eye at this point. Quite honestly I'm disappointed with this phone. Both browsers are sub-par, it took forever for me to figure out just the right bunch of settings on 3 different pieces of software for proper video conversion, swype has about a 25 second delay in the sms app before it lets me type, and mainly, it can't even stay connected to the network! I got this guy because of the processor, but it seems like all of the effort went into Sense, and no one tried to optimize the rest of the OS for the beast of a processor that it packs. Anyways, didn't mean to turn this into a complaint post. One 720p file is AVC with an mp4 container and video bitrate of 932kbps, and audio is AAC 6 channel at 278kbps. the other is an MKV with AVC video at 3476kbps and AC-3 audio at 384kbps, also 6 channel. I thought TCPMP would play those files but it crashed on both. I hope all that makes sense to you guys, it does to me
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Click to collapse
as far as TCPMP goes ... have you soft reset since you installed it? It crashed repeatedly on me before I soft reset, then, magic
if you want a different phne but are past the 14 day ask tmobile to send a new hd2 if you have the unit replaced 3 times in a 90 day period you are eligible for a handset exchange, I'm in this process right now... on my 3rd HD2 and i have the same data issue, after this i can upgrade to the mytouch slide,
*edit* as long as there is no heavy physical damage a.k.a. drop....
Just an fyi...I am in that third phone catagory. You won't get the phone you want...they offered me a Dash 3g! I said "That's not a comparable phone". They said that was the exchange phone and now they're sending me my 4th HD2. I'm having terrible lag issues while texting.
joe the lag issues might be happening because your threads are getting too big.i was having the same lag issue through the regular t9 texting then i switched over to swype in the settings and had a 15 second delay before i could text and realised after some help from this forum that there was too many messages in some contacts threads so everytime it gets to around 60 messages i just delete the thread. This happens with a lot of phones not just this one so give it try and see if it helps with your problem.
wondered if anyone else suffered from this - not sure if its an "Android" or Note 3 issue
basically if watching streamed video - in particular Netflix and Youtube - I can't get smooth playback
the phone seems to drop frames (noticeable by either causing judder or a sudden slow down/speed up as it catches up)
this is via 3G or via Wifi - makes no difference
same content on IPAD is silky smooth
I've tried forcing 2D acceleration in dev settings to no avail
it seems like the hardware or OS can't keep up with the video at all times
local content plays back completely smoothly, be it podcasts via Pocketcasts or local video files via MX Player - perfectly smooth - even at 1080p
any ideas please ?
Buckster76 said:
wondered if anyone else suffered from this - not sure if its an "Android" or Note 3 issue
basically if watching streamed video - in particular Netflix and Youtube - I can't get smooth playback
the phone seems to drop frames (noticeable by either causing judder or a sudden slow down/speed up as it catches up)
this is via 3G or via Wifi - makes no difference
same content on IPAD is silky smooth
I've tried forcing 2D acceleration in dev settings to no avail
it seems like the hardware or OS can't keep up with the video at all times
local content plays back completely smoothly, be it podcasts via Pocketcasts or local video files via MX Player - perfectly smooth - even at 1080p
any ideas please ?
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Click to collapse
I would love to say that my n9005 at 4.3 is stuttering as well. I don't know why.
eakkypoo said:
I would love to say that my n9005 at 4.3 is stuttering as well. I don't know why.
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I noticed something interesting this week -although maybe Placebo (pretty sure not though)
I've always had laggy/stuttering Netflix vs smooth on IOS
yet smooth local 1080p content - perfect really
I was trying Sky Go earlier in week and was lovely and smooth in fact I'd noted how smooth the video playback seemed vs Netflix, tonight I noticed stutter on Sky Go was beginning to think if I was running something in background or something - but then figured the difference - tonight was streamed via Wifi, earlier in week was same/similar content but downloaded first
so is there something odd with chipset that it doesn't like Wifi + Video decoding at same time ?
Buckster76 said:
I noticed something interesting this week -although maybe Placebo (pretty sure not though)
I've always had laggy/stuttering Netflix vs smooth on IOS
yet smooth local 1080p content - perfect really
I was trying Sky Go earlier in week and was lovely and smooth in fact I'd noted how smooth the video playback seemed vs Netflix, tonight I noticed stutter on Sky Go was beginning to think if I was running something in background or something - but then figured the difference - tonight was streamed via Wifi, earlier in week was same/similar content but downloaded first
so is there something odd with chipset that it doesn't like Wifi + Video decoding at same time ?
Click to expand...
Click to collapse
MX Player (and others) might use hardware decoding, Netflix and the sorts might not.
You could go to Dev-settings and check on "Show CPU usage", so you can see whats happening. (But you'ld have to google what it all means as i dont know.
But what i do know is that the procces list shouldnt be too long, like 20 items in my list when idling (for 5 minutes) after usage.
Hey all, new account and first post.
Without further ado, I can't seem to get local 3D videos to work on my Galaxy S4 with Cardboard, and unless I'm using the wrong search terms, Google has no information about my issue whatsoever. I should clarify that any type of 2D format works fine, even 360 degree formats, but if it's supposed to be in 3D, with depth and all that, I just can't get it to work. Either I get a blank screen, a blank screen with audio, or just an incompatibility warning. I've tried 3 different apps, VaR's VR player, AAA VR Cinema, and VR Player Free, but none of them do any good. The videos I've tried to play so far are mp4s.
Normally I can solve technical problems on my own, but this one has me completely stumped. Any ideas?
had same problem with GS4 - i think GS4, being a fairly old device, doesn't support two-channel 1080p decoding. not sure if this is the same problem you were experiencing.
Hi guys, I just got a OnePlus 8 and loaded LineageOS 18.1 onto it and wanted to use it to play games on my 4K TV.
The following is a list of the problems and solutions I encountered to get there.
First, I used a USB-C to HDMI adapter on my 4K TV.
I connect my DualShock 4 to it via bluetooth for a console experience.
a) Problem 1 - Full screen output is shifted to the right slightly (black bar on left side)
Solution 1 - I rooted and used this Magisk module here with the OnePlus 8 preset. It requires enabling in Developer settings (Cutouts) after installation.
https://forum.xda-developers.com/t/module-n3o-no-nonsense-notch-overlay.4226413/
b) Problem 2 - Aspect was weird (black bars on top and bottom)
Solution 2 - SecondScreen with the resolution set to 1080p fixed this. Full screen on TV.
c) Problem 3 - Despite setting SecondScreen to 1080p, phone was outputting to my 4K TV at 4K30Hz (and presumably just upscaling). Horrible input lag and frame rates. I could find NO SETTING to change this anywhere. ADB commands such as adb shell wm size etc had no effect and I think are just what SecondScreen uses behind the scenes as they produced a similar effect. But when I connected it to my 1080p monitor there were no issues, things were smooth and responsive so....
Solution 3 - I bought something like one of these: an EDID emulator for HDMI and it is working like a charm. Fools the phone into thinking the TV's max res is 1080p and so the phone outputs at that. Now buttery smooth frame rates.
https://www.amazon.com/Passthrough-Generrtion-Headlesskeep-Extenders-3840x2160/dp/B08RCMFLMK/
d) Problem 4 - Brightness on phone weirdly tied to brightness on TV. I had to run it at full backlight to get full brightness on TV
Solution 4 - Disabling the display anti-flicker setting seemed to unlink the brightness on the phone and TV. Now I can play at normal brightness on TV with zero on phone (set by SecondScreen)
e) Problem 5 - Using a phone as a video game console uses battery.
Solution 5 - Got a new USB-C adapter that allows charging. Not this, but something like this. Confirmed can charge and have video out to my TV at the same time.
https://www.amazon.com/Multiport-Delivery-Converter-Compatible-Chrome-Book/dp/B087Q62H89/
And there you go. So far this seems totally viable and cool, and I am a fussy, hard-to-please kind of person.
I am looking forward to using this to keep playing some RPGs I would like to get through, with a console experience at home but still able to pick up and continue a bit when out.
Hope this helps someone! Spent hours googling and trying to figure this stuff out.
It's **** like this that got me into modding droids in the first place. You are a legend and a gangster. Keep on doing whatever. XD
This is an excellent guide and gives me more confidence to install the mod and mess with it. Thanks
Useful info like this will hopefully increase the likelihood that the community will use roms to implement the desktop experience. Maru was one example I saw a redditor post but it's in early development.
Also check out Taskbar which is an excellent app for DTE on non-rooted phones