MP4 to FLV problem, No audio from MP4 to FLV?

Question

There are some MP4 videos I want to upload to my website, but after MP4 to FLV conversion, the sound goes completely missing, I am currently using replay converter, is there some special conversion settings I should pay attention to about converting MP4 to FLV?

Answer 1

no sound,I think theproblem is the converter.

I recommend Enolsoft video converter to you,convert between all common video formats and extract audios from videos.very handy!

Answer 2

It could be a number of things... You may not have the codec to play the audio from the MP4 and so when it converts it there is no possibility of playing the audio. Don't forget that the MP4 file extension is just a wrapper and the actual codec used could be mp3, mp4, wav, aac or any other format. If you can't hear the audio at all when the MP4 is played (let alone converted) then I would assume this is the issue. If you can hear the audio when it is played, I would check that the converter you are using will accept external codecs. Programs like VLC etc use their own codec packs and while they play loads of differently formatted content they don't always accept all codecs.



The easiest solution though is to simply download and use another converter... As the previous user suggested, Jodix is free and easy to use (as is EasyFLV). Imtoo and Xilisoft also offer solution but they charge for them (although there are many pirated versions on torrent sites).

Answer 3

Replay converter? I've never heard of it before, why not try some other video converters like Format Factory, it's freeware, you can free download, free access full functions without costing a dime.



Format Factory is a multifunctional media converter.

Provides functions below:

All to MP4/3GP/MPG/AVI/WMV/FLV/SWF.

All to MP3/WMA/AMR/OGG/AAC/WAV.

All to JPG/BMP/PNG/TIF/ICO/GIF/TGA.

Rip DVD to video file , Rip Music CD to audio file.

MP4 files support iPod/iPhone/PSP/BlackBerry format.

Supports RMVB,Watermark, AV Mux.



Format Factory's Feature:

1 support converting all popular video,audio,picture formats to others.

2 Repair damaged video and audio file.

3 Reducing Multimedia file size.

4 Support iphone,ipod multimedia file formats.

5 Picture converting supports Zoom,Rotate/Flip,tags.

6 DVD Ripper.

7 Supports 56 languages



OS requirements: All Windows OS



1. Load the MP4 Video

Run Format Factory. It's quite easy to load the MP4 video to be converted by clicking "Add" button. Click "Remove" button to remove the video if you load incorrectly.

2. Trim Video

Trim Video to Convert (Optional)

If you wish to convert only a segment of the MP4 video to FLV, just simply drag the handle of the bar under the video preview window. Another choice is to set the start time and end time in the output setting area.

3. Store Favorite Video Images

Store Favorite Video Images (Optional)

If you find an image you like in the video, just click "Snapshot" button under the preview window to store the image in your folder. If it is possible, you can use this image as the cover image of your video when uploading to websites.

4. Select Output Format

Simply click "to FLV", you can then convert the MP4 video to FLV format.

5. Edit Video Parameters(Optional)

The default video setting is OK. But you can still edit the video parameters to optimize video quality as you wish.

6. Select the Destination Folder

Click "Browse" to choose the destination folder to save your FLV video converted from MP4.

7. Start Conversion

Click "Start" button on the main interface to start converting MP4 video to FLV. You can view the conversion progress from the progress bar at the bottom of the dialog box.

Answer 4

I always use this Tipard Video Converter. It supports the mutual conversion between almost all video/audio formats, and HD videos.

Input Formats: MPG, MPEG, MPEG2, VOB, MP4, M4V, RM, RMVB, WMV, ASF, TS, MKV, AVI, 3GP, FLV, MPV, MOD, TOD, MP3, MP2, AAC, AC3, WAV, MID, MIDI, WMA, M4A, RA, RAM .

Output Formats: MP4, H.264, AVI, MP3, WMV, WMA, FLV, MKV, MPEG-1, MPEG-2, 3GP, 3GPP, VOB, DivX, Mov, RM, RMVB, M4A, AAC, WAV, OGG, RA.

It also can set video effect, set Deinterlacing, trim your video length, crop the play region, merge into one file, customize output settings.

Answer 5

You can change to use DVDFab Video Converter. It can convert video files on your PC to almost all popular video formats such as MPEG-4, DivX, Xvid, H.264, AVI, MKV, FLV, WMV, DPG, 3GP, etc.

Answer 6

Hi there. maybe you can use 4Videosoft Video Converter Platinum, it support selecting audio tracks & set different parameters including audio encoder for your videos. Also you can follow this search result for more details if you like or just free download & try it yourself.

Answer 7

why not use the Aiseesoft Total Video Converter, which can help you convert any video to all popular video formats, certainly including MP4 to FLV.

i once used it to convert video to upload to youtube, and the effcet is not bad.

you can have a try as well:

http://www.google.com/#sclient=psy&hl=en&source=hp&q=Aiseesoft+Total+Video+Converter&aq=f&aqi=&aql=&oq=&pbx=1&bav=on.2,or.r_gc.r_pw.&fp=6889b06031c3fd88

Answer 8

google jodix converter...i never had a prob with it and its free

Answer 9

ive found real player and its converter work great!