- AMR TO MP3 FFMPEG ANDROID APP CONVERTER 720P
- AMR TO MP3 FFMPEG ANDROID APP CONVERTER SOFTWARE
- AMR TO MP3 FFMPEG ANDROID APP CONVERTER WINDOWS
ffmpeg -i still.png -i narrate.wav -acodec libvo_aacenc -vcodec libx264 final.flv FFmpeg is a lot smarter than you give it credit for-it knows you want the video to be the same length as your audio track. You're making it way harder than it has to be.
AMR TO MP3 FFMPEG ANDROID APP CONVERTER 720P
Also I set the resolution to 720p here, which means you should get HD audio on YouTube :-) If you do this correctly, there should only be one frame per second of video, which means it encodes relatively fast. If you change the order of these parameters, the results are dramatically different.įfmpeg -r 1 -loop 1 -i ep1.jpg -i ep1.wav -acodec copy -r 1 -shortest -vf scale=1280:720 ep1.flvĪlso notice that I set the frame rate twice, that's not an accident-the first frame rate is for the input, second is for the output. (It stops at the end of the shortest stream, which is the audio, because the image loop is infinite.) The order of your options is very important for speed, as filters (and such) are processed in the order you specify. Also, I added -acodec copy to preserve the audio quality. The solution I found to make YouTube happy: add more frames. Update: I noticed YouTube has difficulty processing the video (gets stuck at 95%) I think because there's only one frame. I've googled around and found a dozen of proposed solutions (supposedly to this very same question) none of which works.Ĭan anybody suggest a working command and explain the rationale behind it?įFmpeg will try to pick the best codec automatically, depending on the extension of your output file. I tried: ffmpeg -i image8.jpg -i sound11.amr -acodec copy test.aviĪnd tried a lot of combinations with and without -s 640x360, -loop_input, -shortest, -t xxx, -r 0.1 (artificially low frame rate in the hope that the video would be longer) and -f image2Įither I get errors or I get a video file of the duration of one frame. What is the right command line that would do that? copy the audio stream without transcoding it). I don't care very much about what video codec is used for output, but it is vital that I can use "copy" as the audio codec (i.e. I want FFmpeg to take one JPEG image and an audio file as input and generate a video file of the same duration as the audio file (by stretching the still image for the whole duration). Because AMR files are heavily compressed and focused on narrowband signals, they are not suitable for music files.This should be pretty trivial, but I can't find a way to get it to work.
AMR TO MP3 FFMPEG ANDROID APP CONVERTER SOFTWARE
Other software, such as the free audio-editing software Audacity, can open AMR files. AMR also opens with VLC media player, QuickTime, RealPlayer, and Xine. Since AMR files are often used on mobile phones, including for MMS messaging, most 3G mobile devices are able to open them. It is used regularly in Global System for Mobile Communications (GSM) and Universal Mobile Telecommunications System (UMTS). The AMR speech codec focuses on narrowband signals, which makes it ideal for voice recordings and radio. What is an AMR (Adaptive Multi-Rate Codec) file?Īdaptive Multi-Rate (AMR) is a compressed audio file that is often used for speech coding. They are Masterpoint green points data, which is obsolete and TeslaCrypt 3.0 ransomware encrypted file, which is malware that demanded ransom in bitcoins, but is thankfully now deactivated and no longer a threat.ĭeveloped by: ISO/ IEC, Moving Pictures Experts Group Keep in mind that two other file types use the MP3 extension. Users can also preview MP3 files.Īnother program that can open MP3 files is VLC media player.
AMR TO MP3 FFMPEG ANDROID APP CONVERTER WINDOWS
Simply clicking on the file will open it in iTunes or Windows Media Player, depending on your preferred platform. Due to small size and acceptable quality, MP3 files are accessible to a wide audience, as well as easy to store and share.īecause MP3 files are so prevalent, most major audio playback programs support them. MP3 files are the most widely-used audio file for consumers. MPEG-1 Audio Layer III or MPEG-2 Audio Layer III (MP3) is a digital, audio-coding format used to compress a sound sequence into a very small file to enable digital storage and transmission. What is an MP3 (MPEG-1 Audio Layer III or MPEG-2 Audio Layer III) file?