mp3

问题 Im using this library for first time so Im not sure if this is a bug or Im not correctly doing something. I want to export a file into mp3, the loading works perfectly: wav=AudioSegment.from_wav(Path) #If I execute only this line, there are no errors. But when I try to export my file to mp3: wav.export(r"WavOut.mp3",format="mp3") It throws the following error: WindowsError: [Error 2] The system cannot find the file specified Full error report: http://pastebin.com/3CpZBkEK I believe I am using

问题 While the question may seem fairly basic I seem to be at a loss to actually find anything that fits my needs, which are: Skinnable (although not 100% required) Controllable through javascript (start, stop, change track) Event triggers for custom functions (on track finish mainly) Actual documentation - rather that 'it can do this, but we wont tell you how' I've tried many of the free and quite a few demo's of the pay for ones. Wimpy Wasp seemed to be the closest to what I need but there is an

问题 I'm working on the Android application which is using JLayer library to decode MP3 file (I need access to audio samples) and AudioTrack object to play it. I have something like this: int timeMarker = 0; int timeStep = 5000; while (!isCancelled()) { outSignalBuffer = decode(fileToPlay.getPath(), timeMarker, timeStep, bufferSize); audioTrack.write(outSignalBuffer, 0, outSignalBuffer.length); //publishProgress(outSignalBuffer); timeMarker += timeStep; } This code is placed in my custom player

问题 I want to play mp3 files on my server with AVAudioPlayer I've tried this code, but it does not work. -(IBAction)playSound { NSString *path = [[NSBundle mainBundle] pathForResource:@"http://www.domain.com/audio/test.mp3"]; AVAudioPlayer* theAudio=[[AVAudioPlayer alloc] initWithContentsOfURL:[NSURL fileURLWithPath:path] error:NULL]; theAudio.delegate = self; [theAudio play]; } 回答1: NSBundle can only select the files in the apps bundle, not the ones on the internet. Make this the path NSString

问题 Here's my code: <embed src="/sound/lowyourchicken.mp3" width="140" height="40" autostart="true" loop="TRUE"> </embed> I would like the src for the .mp3 to take in to account that there are many randomly named .mp3 files in the /sound/ directory, and to choose one at random each time the page is opened. Any clues for me? My server is PHP enabled but I'd like to keep this as simple as possible. 回答1: This should do it: $files = glob("/path/to/directory/*.mp3"); $random = array_rand($files) Then

问题 This is a question about the file format of MP3s. I've been hunting for a way to get an MP3 duration. Since I'm using JLayer SPI to decode the MP3 I've discovered that this is possible where the audio source is a file. AudioFileFormat fileFormat = AudioSystem.getAudioFileFormat(source); Long microseconds = (Long) fileFormat.properties().get("duration"); System.out.println(microseconds); However when I take the similar code and the very same MP3 and change the source to a URL, JLayer does not

问题 Which Audio format should I use to get the best accurate seek to? (play the song from an offset) I whant this to be accurate on the millisecond. is that Possible? 回答1: I can say that the format of the audio file matters. I had this problem with long mp3 file. As the mp3 files aren't designed for such accurate seeking you can check this answer for more details In my case the bitrate of the mp3 file was low, It was 96Kps. and the VBR data wasn't correct which caused the mp3 file to seek wrongly

问题 I have a directory in which there is a mp4 file (including other files as well) which I want to convert into mp3 and then send it to different directory. I have used the following command line command to covert into mp3 and its working perfectly fine. ffmpeg -i 36031P.mp4 -map 0:2 -ac 1 floor_english.mp3 mp4 file is inside in_folder . Using ffmpeg, I want to convert mp4 file into mp3 and send it to out_folder . <?php $dir = 'in_folder'; $files1 = scandir($dir); print_r($files1); /* It lists

问题 i am trying to read bpm embedded in mp3 file like this one : i have tried using Windows.Storage.FileProperties.MusicProperties but it only contains title, singer, etc. it can't read the bpm i showed before. im looking into https://taglib.github.io/ they seems not having such function too. is there any workaround to this? 回答1: When you've loaded your music file into a StorageFile, you'll want to place a similar call in your code like this: var fileProps = await file.Properties

问题 I've been working on a small media player app for Android. I'm having some trouble retrieving the meta data from the music files. I've been using the MediaMetadataRetriever , but it has proved to be quite troublesome. Does anyone know of a better way to go about this? If so how would one implement such method? 回答1: I've used JAudioTagger , which you can find here. It supports (basically) every version of ID3, so you're covered even for old files with outdated metadata. Pretty good (and easy)