mp3 | 易学教程

Does Chromium Embedded Framework support HTML5 audio?

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问题 I've been playing around with CefSharp and I can't seem to make any audio play. I can make the audio controls appear, but they remain frozen. These are the versions I use: Chromium: 21.0.1180.0, CEF: r728, CefSharp: 0.12.4596.50 I tried first .mp3, then .ogg, and finally .wav, but none would work. This is the HTML and audio I load when trying with .ogg: public bool OnBeforeResourceLoad(IWebBrowser browser, IRequestResponse requestResponse) { IRequest request = requestResponse.Request; if

Playing mp3 on website created with Node.js

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问题 I've searched for hours and several days for a good solution for my problem. First of all my scenario: I am building a website with Node.js - especially Sails.js. The goal is to have a list of mp3 files of my server side directory (that's already done) that are litet as links on the client side (website). When I click on one link I want the file to be loaded in my HTML Audio Tag (or if theres a better node.js specific solution with start/stop controlling it would be fine too). And that's the

How can I make 3gp video with mp3 audio file and images?

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I am trying to create a 3gp video file by combining an mp3 audio clip and an image for my android application. That is: mp3 + image = 3gp video clip. I did so much research on this but found that help available was limited. Please let me know how to do this. Praful Bhatnagar If you are looking to do that outside of your application then check out this post which gives ffmpeg command that can be used to achieve the same. Also ffmpeg can also be compiled for android and used using the JNI as discussed in this post . copying the best answer for quick reference: Here are the steps I went through

Read ID3 tags without downloading the whole file

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问题 Is it possible to read ID3 tags (Duration, Artist, title...) of an MP3 file without having to download the whole file? I did a few tests and I was able to get the Artist and title tags with only downloading a few bytes of the MP3 file.. but I'm not sure if it's possible for Duration and other tags.. Thanks. 回答1: I just find out that ffmpeg can read ID3 tags of a remote file without having to download the whole file: root@local1:/# ffmpeg -i http://physics.ujep.cz/~mmaly/mp3/Mozart/Mass_in_C

Convert WAV to MP3 using LAME from PHP

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问题 I have WAV data that I'd like to convert to MP3 on the fly with a PHP script. The WAV file originates with the script, so it does not start out as a file. I can run something like this: exec( "lame --cbr -b 32k in.wav out.mp3" ); But this will require that I first write in.wav to disk, read out.mp3 from disk, and then clean up when I'm finished. I'd prefer not to do that. Instead, I have the wav file stored in $wav, and I'd like to run this through LAME such that the outputted data is then

Saving Microphone Stream to mp3 or wave

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问题 I recording sound from Microphone in Windows Phone device. Using Xna.Framework.Audio.Microphone I store the sound in MemoryStream . I can save it to PCM format. However It will be much better to convert it to mp3 file. If converting to mp3 is impossible then maybe somebody at least knows how to convert it to wav. Thanks for your answers. 回答1: Here is a brief example I created showing how to save wp7 recorded audio as a wav stream: http://damianblog.com/2011/02/07/storing-wp7-recorded-audio-as

Pydub (WindowsError: [Error 2] The system can not find the file specified)

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问题 I have a problem with Pydub module running in Windows and Linux. When I try open a mp3 file thus: from pydub import AudioSegment sound = AudioSegment.from_mp3("test.mp3") Console show me the next message: WindowsError: [Error 2] The system can not find the file specified But...I have the file (test.mp3) in the same folder that the script, the name is correct. Why I have this problem? (In Linux, have the same error) 回答1: Make sure that you have ffmpeg http://www.ffmpeg.org/ installed. You can

How do I get the length of an MP3 from its URL?

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If I know the URL of an MP3 file, what is the easiest/fastest way to get its length, bitrate, size, etc? How can I download just the ID3 tag part of the MP3 to get these details? You will need to look at the ID3 tags in the mp3 file. Unless you keep track of the metadata you want somewhere else. To specifically get the Track length of the file you will need to look into the ID3 metadata tag for sure, specifically the 'TRCK' frame of the tag. To only download the ID3 Tag part, you must first download the ID3 header part of the file. This website contains very specific information about the ID3

Mono Playback of Mp3s in Python OR C++

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Im coding a music player in python using pyqt and I wanted it to feature mono playback of mp3 files. I've accomplished that using pygame, as its mixer has a specific parameter channels that I can set to 1 to get mono playback. However, pygame mp3 support is limited , so I'm searching for a library that will be able to handle mp3 files AND mono playback. Currently, I'm using pyaudiere for playback and on its site there's an example of processing the song before playing it, so maybe I could do that to turn the song to mono, but I really have no idea how to accomplish that. I'd like help on how

Changing volume in Java when using JLayer

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问题 I'm using JLayer to play an inputstream of mp3 data from the internet. How do i change the volume of the output? I'm using this code to play it: URL u = new URL(s); URLConnection conn = u.openConnection(); conn.setConnectTimeout(Searcher.timeoutms); conn.setReadTimeout(Searcher.timeoutms); bitstream = new Bitstream(conn.getInputStream()/*new FileInputStream(quick_file)*/); System.out.println(bitstream); decoder = new Decoder(); decoder.setEqualizer(equalizer); audio = FactoryRegistry