I want to convert a given flac file to a wav file. Most of the questions on StackOverflow are the opposite of my question. Have anyone an idea how to solve this problem ? I heard something about JavaFlacEncoder link but I could not find a method to convert flac to wave.
Use flac -d to (from the man page)
Decode (the default behavior is to encode)
Another option would be the JustFLAC library, again you need to decode from FLAC. WAV is uncompressed audio.
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I want to find a way to create a new MP4 container and add an MP3 file into it. Whether the MP3 file is to be encoded or not does not matter to me. Is there any easy way to do this without using ffmpeg? I have found the following example for muxing:
android - How to mux audio file and video file?
Though, it has issues and also it is supposed to mux the audio file into an existing video.
Can someone point me to a guide or at least in the right direction to accomplish what I need?
U can do this using MediaCodec and MediaMuxer but right now i think mp3 is not supported u should first decode mp3 to wav and encode to supported format like aac using MediaExtractor and MediaCodec and then u can add to mp4 container using Muxer. U might find this link helpful https://www.sisik.eu/blog/android/media/mix-audio-into-video
I have created an application but it is only support .wav files to convert audio to text. It is not showing any answers when giving .mp3 files .. I am using sphinx for to convert audio files to text. My question is that why it is not converting to text from .MP3?
As it is specified in the CMU Sphinx documents, only the linear PCM WAV audio format is accept by its speech recognizer. Therefore, any MP3 audio file will be decoded to obtain the linear PCM format, of 16khz sampling rate, 16bit/frame, little-endian and one channel (mono).
This decoding is achieved by the Tarsos Transcoder 1.2. This library uses many Apache utilities, therefore beside the TarsosTranscoder.jar, mp3plugin.jar also has to be included in the project building path.
I need to parse mp4 file (which I get from URL), to raw audio file (FLAC) using JAVA, and I want to do that without actually download the file to my server.
I checked sannies/mp4parser library but the file need to be downloaded.
Is there any way to parse the mp4 to flac without download it?
Thanks
I would like to perform a FFT on frames of an MP3 file using Java (think spectrum analyzer). I found JLayer which seems to fit the requirement of MP3 Decoding, but I'm not sure how to use it (Most examples are simply players that use the higher level helper, but that's not what I am looking for). FFT seems easy compared to decoding MP3 files ;)
My question is basically this: How would I take an MP3 file in java, and decode it to raw audio data for analysis in Java using JLayer
I am on the same Boat - trying to decode and analyze MP3 files using Java. You may want to check out MP3 SPI from the same author. There is a good example of getting the raw decoded PCM data from an MP3 file in his page:
http://www.javazoom.net/mp3spi/documents.html
Good luck,
Uri
Which audio format would provide the least lossy conversion into mp3 and ogg through ffmpeg.
I am tending towards wav, but I would like to make sure.
Also, I am using the SDK java audio applet to allow users to upload. Does anyone know if there are any issues with this applet, or if there is a better option out there?
Obviously, uploading files already in MP3 and OGG format would provide the least lossy conversion since you don't need to convert at all.
About the SDK java audio applet: Is this really needed? You can also upload a file using just a HTML form and PHP.
FLAC is lossless, and so is WAV. FLAC is smaller than WAV. If you need something that you will be converting into multiple formats, opt for a lossless format.