0
votes
1answer
2k views

How to fix choppy sound replay with VLC

I've got a problem with vlc playing some file formats, for example mkv or m2ts (I didn't notice this problem with avi though). The sound plays ok, than dissappears for a second or two, than ...
1
vote
0answers
191 views

Fix audio codec error with ffmpeg

I had an AVI (XVid) file with 2 audio channels. I removed the FIRST audio channel using ffmpeg as: ffmpeg -i <input.avi> -acodec copy -vcodec copy -map 0:0 -map 0:2 <output.avi> Now, ...
0
votes
0answers
42 views

Knowing which codecs to install to play a video properly

I donwloaded a video in mp4 format from YouTube using downloadhelper firefox plugin. When I play the video with Wondershare, it plays but there is no audio. How do I know which audio codec I need to ...
0
votes
1answer
2k views

Which one VoIP SIP audio codec should I choose to high quality calls?

The quality of VoIP calls depends on the codec used for the transmission and on the bandwidth of Internet connection. I want to use best optimized codec for my Internet connection. I have to select ...
0
votes
0answers
117 views

Bluetooth audio codec

Is there a way to know which Bluetooth audio codec is actually being used by my headset? Is it possible to change this codec to avoid loss? I am using Windows 8 (can switch to linux also).
1
vote
2answers
443 views

How to convert audio file of type G.723.1 into wav format?

I have few audio files which have .wav extension. I tried to get information about this file using soxi <foo.wav> command but I got following error : soxi FAIL formats: can't open input file ...
1
vote
0answers
181 views

How to encode a video with timestamps in order to have audio/video sync

DISCLAIMER: I am unfortunately very new to codecs and using FFMPEG, so I apologize for any incorrect terminology or if this is in actuality a very easily resolved question. I have a sequence of jpeg ...
4
votes
1answer
414 views

What lossy audio formats are more (or less) “efficient”?

This question is related to the answers I got to this question. The bitrate-efficient format (see the question's most voted answers and their comments thereunder) would be one that assures a good ...
0
votes
0answers
118 views

How to process PCM with ffdshow codec?

I am playing video from old photo camera with MPC-HC. I am tending to play everything with ffdshow codec, not with internal codecs of MPC-HC. While playing this video, only one (red) icon is appearing ...
0
votes
1answer
1k views

Bluetooth dongle with support for A2DP and the AAC codec

I recently bought some Sony MDR-1RBT headphones which can be used via audio cable, but also via Bluetooth. They support BT 3.0 with A2DP and use SBC or AAC as codec. Unfortunately they do not support ...
3
votes
2answers
4k views

Which Bluetooth Stack supports APT-X on Windows 7

I'm thinking about buying wireless desktop speakers for ease of use with different audio sources (Notebooks, Mobile Phone etc.). For higher audio quality over the standard A2DP protocol there are ...
4
votes
1answer
2k views

accurate cutting of video (+ audio) with ffmpeg

I want my website to allow users to accurately create their own clips from a source video I provide. I have a source video file that I first want to convert to something suitable for a website: ...
0
votes
0answers
322 views

Can't play movie on TV with DTS audio codec

Most movies have DTS audio codec but my TV can't play it. Is there anything can be done about it? Maybe somehow change codec? Or maybe you can download audio in separate file? If it matters I play it ...
4
votes
3answers
2k views

What's the best audio format available when I want to convert my files?

I'm a music lover. I have lot of songs stored on my laptop, but the problem is I'm running out of space on my hard disk, because of the different audio formats which occupy lots of space. Now I want ...
-2
votes
1answer
492 views

What is the audio encoding codec that has the less latency?

There is a lot of audio codecs : MP3 AAC FLAC OGG SPEEX etc Some compress a lot and other less .... however it does not mean that one codec is having less less latency than another. For a general ...
6
votes
2answers
346 views

Why would my PC no longer be able to play audio files that it was able to play yesterday?

I'm having a very specific problem, with no idea as to what may be causing the issue. Here is a description of what I'm seeing: I have a CD of PDF/Audio files that are generated by a third party. Up ...
4
votes
1answer
2k views

What are AC'97 and High Definition Audio?

I've read they were hardware audio codecs. But how are they different from mp3, aac codecs? mp3 and aac codecs can also be implemented in hardware (can't they?). What key differences do AC'97 and ...
1
vote
1answer
394 views

ffmpeg: video file played OK on Ubuntu, but no sound on XP

I created a video clip using ffmpeg (vcodec: mpeg2video, acodec: AC3 5.1). The file can be played normally on Ubuntu, but when I play it on an XP machine, there is no sound. I can play AC3 files and ...
1
vote
1answer
4k views

FFMPEG able to convert m4a -> mp3, but unable to convert mp3 -> mp3?

FYI: Fedora 8 running on Amazon EC2... Having a difficult time with FFmpeg doing a (what should be pretty simple) conversion. I can get FFmpeg to encode an mp3 file from an m4a file using the ...
1
vote
1answer
615 views

Adobe Premiere Pro and Elements only play the first seconds of sound for my videos

I have some movie clips from my camera. The problem is that when I import such a video into Adobe Premiere Pro or Elements, the video is working all fine, but from the sound, I just hear a few ...
2
votes
1answer
119 views

Do I really need a specific headset to get the benefit of Super Wideband Audio?

Back in 2003 Skype released their Super Wideband Audio codec which was supposed to be a lot better than all other audio codecs. (better sound less bandwidth.) And they give it away with a royalty free ...
2
votes
1answer
796 views

Best video and audio format for small file size with very unnoticeable quality depreciation

I need to bring down disk space of my file-sharing website suggest me an audio codec and video codec which works with FFMPEG and can reduce file size with little or no loss in quality . Thanks.
2
votes
3answers
192 views

Burning DVDs to disk - what audio codec should I pick?

I finally got around to burning all the DVDs to files, so that I can get rid of all the plastic media once and for all. Most DVDs have several audio codecs available (2 channel stereo or 5.1 Dolby). ...
1
vote
2answers
8k views

How can I check the video/audio format for a MKV file?

I have a MKV video file. Can you please tell me how I can find out the video/audio codec of that file, and how I can find out if it is 1080p or 1080i? I have a Windows 7 desktop PC. Thank you.
3
votes
2answers
6k views

No DTS Audio output in Windows 7?

Windows 7 supports a ton of video codecs by default, but I've found that some of the videos I have will play video but no audio. Using the MediaInfo application, It looks like the culprit is the ...
0
votes
2answers
3k views

Youtube has no voice but the music continues just fine?

PC CONFIG: gigabyte EP45C UD3R with the realtek HD onboard 4gb dual channel Qcore 2.83ghz When i watch to videos on youtube now the voice some times is in static and some times so ...
0
votes
1answer
180 views

How to learn about media encoding, decoding, formats, etc

While engaging in some media processing (ripping DVD to .avi to watch on my laptop), I became interested in all the technicalities I encountered regarding the video and audio encoding etc. What are ...
0
votes
1answer
369 views

Quicktime X + AVI = no sound

i got an avi container file and want to play with QT X. I installed Perian but sound does not work for a few files. I used MediaInfo(http://mediainfo.sourceforge.net) to determine the used audio codec ...
0
votes
0answers
280 views

Audio CDs Won't Play In WMP 11 In Windows 7 [duplicate]

Possible Duplicate: Why won’t regular CDs play on my Windows 7 system? I've got some regular audio CDs that I cannot get to play on my Windows 7 (64 bit) system. When I try to play ...
4
votes
2answers
6k views

Why won't regular CDs play on my Windows 7 system?

I've got some regular CDs that I cannot get to play on my Windows 7 (64 bit) system. When I try to play them I get the message: "Windows Media Player cannot play the file. The Player might not ...
1
vote
1answer
225 views

mplayer (mplayerhq.hu) repeats ending audio frames

mplayer (from mplayerhq.hu) on windows repeats the last few audio frames upon exit. When the video ends, before you can see Exiting... (End of file) in the command prompt, you will hear the ...
4
votes
4answers
295 views

App to identify codecs in video files

I am looking for an app that will identify audio and video codecs in a given AVI or MP4 or what have you. Does something like that exists?
9
votes
3answers
1k views

What is the current state of development for the FLAC codec? [closed]

I have a pretty large collection of FLAC files created from my CD collection. I love the FLAC format and the sound quality that you can get from it. Lately, however, I've been trying to write a few ...
1
vote
2answers
8k views

Is there any free g729 or g711 converter?

I need a converter to convert G729 or G711 files to WAV/WMA/MP3 or any other format which can play in for example Windows Media Player.
0
votes
2answers
401 views

Windows Media Player - Can't find video codec for the file, will it still play the audio part?

If I try to play a movie file, whose video codec WMP doesn't recognize, and assuming it does know the audio type, will it play just the audio ? or will it flash an error message and stop? How do I ...
0
votes
1answer
200 views

Win Vista to Win 7 Upgrade problem - Drivers

Have just upgraded from Vista Home Premium 32 bit to Win 7 Home Premium 32 bit which appeared to go well but i now have 2 annoying driver problems. Whenever i now boot my computer a message pops up ...
1
vote
1answer
140 views

Windows Media Player Audio Codec

I can't play 3GPP2Video files with the audio working. As in the the video works, but I can't hear anything. I can play the same file with quicktime, and the audio and video both work. Where can I find ...
0
votes
1answer
1k views

Unknown Codec with Windows7 Media Center TV recordings

I recently upgraded to Windows7 and I've found myself unable to watch recorded or live TV on Windows Media Center. The video quality is fine, but the audio is just an awfull synthetic sound - just to ...
5
votes
7answers
981 views

Realtek HD Audio playing weird with certain video formats

I have a Gigabyte motherboard with an onboard Realtek HD sound card. The card is working perfectly everywhere, except for a single video format, where the voice is distorted, sounds as if it's been ...
5
votes
5answers
13k views

MP3 vs M4A (AAC): what is the audio codec for portable devices which gives maximum independence?

A couple of years back MP3 was the most supported format for portable devices. Then Apple came along and wiped the floor of all the portable devices with the iPod as well as the iPhone. They clearly ...
0
votes
1answer
165 views

Windows Media Based video audio converter?

This may seem like an odd question. Right now ONLY windows media player, VLC and media player classic opens and plays my audio video correctly. Virtualdub plays it back with the wrong framerate and ...
0
votes
1answer
395 views

virtualdub/ffshowtry and audio codecs that should exist

While trying to convert a video i notice virtualdub cant find my codec (no sound in output file). Even while setting use source audio it cannot find the audio. VLC can play the sound so how can i get ...
2
votes
2answers
223 views

How can I learn how multimedia file formats work?

I have always been a bit puzzled about how audio/video file formats work, and how the extension of a media file (e.g. mp4) doesn't always tell the whole story about what media formats the file ...