We want to convert 320kbps mp3 file to 128kbps mp3 so currently we are using below ffmpeg command but its not working. ffmpeg -i input.mp3 -codec:a libmp3lame -qscale:a 5 output.mp3 Result:-the ...

Does anyone know what the formula is for bufsize along with the rate it checks in FFMPEG? I can't seem to find any concrete answer to this. Is it: bufsize = bitrate / rate ? And should it be using ...

I am really having hard time understanding the difference. Some say they are same, while others say there is a slight difference. What's the difference, exactly? I would like it if you explained wi...

I am trying to fetch bit rate at which the AVPlayer is playing the video stream . I tried with observed bit rate property of AVPlayerItemAccessLogEvent , but it gives very high value.After explorin...

I just had this question because I used the following command with ffmpeg: ffmpeg -i input.wav -filter:a "volume=0.2" output.wav Following the documentation here: https://trac.ffmpeg.org/wiki/Au...

Trying to figure out ffmpeg, currently working on getting 24bit/96khz FLAC files into 16bit/48khz.

I would like to know how to calculate the bitrate of this video: http://jell.yfish.us/media/jellyfish-30-mbps-hd-hevc.mkv Video details: jellyfish-30-mbps-hd-hevc Video details From MediaInfo ...

I'm using MediaCodec to encode H.264 video from camera, the problem is, when I move my phone, the output video's quality is very pool, full of mosaic/visual blocks in the video. Belows are some de...

I have a 1 second PCM data which I write into an AAC file successfully. However, I can not control the bitrate of the output file. Here is the configuration of my AAC codec: AudioStreamBasicDesc...

I was looking for a way to batch reduce mp3 bitrate on my sizable collection of mp3 files. It was surprising difficult given that this must be a super common thing to want to do. In fact, there a...

I am developing audio player in android. So i want to add the details of the playing song i.e. Artist Name, Duration, Bit rate and sampling frequency. I can get Artist Name and duration of a music ...

I have installed sox with support for both mp3 and flac. The below command also successfully converts flac to mp3 sox /song_files/Daughter_of_Evil.flac /song_files/Daughter_of_Evil.mp3 My probl...

I am currently working with the MPMoviePlayerController and am analysing metrics for video playback. Specifically, analysing adaptive bitrates. As part of testing I load a particular rendition of t...

I wrote a demo to record a video using MediaCodec and MediaMuxer. I record a video with my demo and use ffprobe to check the video, the result is as follows: Duration: 00:00:06.86, start: 0.0000...

When using flowplayer with the bandwidth check plugin , you need to state the bitrates for the different video quality. Here what it looks like: // the bitrates, video width and file names for t...

Is there any program that detects the bitrate of an MP3? I'm not talking about the effective bitrate that the file has been encoded with, but the real bitrate that can be calculated only by frequen...

I am trying to read "Bit rate" property of audio files. I know how to get the value but the way I am doing it I don't think is the most efficient. Shell shell = new Shell32.Shell(); Folder objFold...

I use FFMPEG (command line Input) to convert my videos to a specific output format. The problem I am facing is when I try to pass a constant bit rate(700 kbps) to FFMPEG, the result is an output vi...

You have 30 seconds audio file sampled at a rate of 44.1 KHz and quantized using 8 bits ; calculate the bit rate and the size of mono and stereo versions of this file ؟؟

I am new to video encoding so bear with me. I am using FFMPEG. I have an mp4 file which is 640 x 350 with an average bitrate of around 2000kb (I think) and a filesize of 80Mb. I want to convert th...

I have a 11-minute .mkv file with a h264 video stream, taking up 184MB of space. I would like to reduce the size of this file. I figured I could just reduce the bit-rate. But ffprobe doesn't output...

how can i get bitrate of a MP3 File ?

How to determine the type of the bitrate used for an mp3 file, e.g. CBR, VBR or ABR?

How can you list all files (recursively) within a directory where the file (audio) bit rate is greater than 32kbps using powershell?