mp3

问题 Given the path of an mp3 file, how do I create and initialize an IPropertyStore object to operate on the metadata of that file? Specifically, how do I get from here: "C:\\Music\\Viva Las Vegas.mp3" to here: store->GetValue(PKEY_Music_AlbumArtist, &variant); Here's some pseudo-ish code to help clarify what I'm trying to do: #include "stdafx.h" #include <propsys.h> #include <propkey.h> void main () { // property store must somehow represent the mp3 file IPropertyStore* store = "C:\\Music\\Viva

问题 I am extracting audio only from youtube videos using youtube-dl . I would like to write the metadata (i.e. Artist Name and Song Title) into the mp3 file after downloading . My attempt to accomplish this starts with this code: @echo off set dl=https://www.youtube.com/watch?v=2Y6Nne8RvaA youtube-dl --metadata-from-title "%(artist)s - %(title)s" --extract-audio --audio-format mp3 -o "%%(title)s.%%(ext)s" --add-metadata %dl% pause The output from this code is: [youtube] 2Y6Nne8RvaA: Downloading

问题 I am extracting audio only from youtube videos using youtube-dl . I would like to write the metadata (i.e. Artist Name and Song Title) into the mp3 file after downloading . My attempt to accomplish this starts with this code: @echo off set dl=https://www.youtube.com/watch?v=2Y6Nne8RvaA youtube-dl --metadata-from-title "%(artist)s - %(title)s" --extract-audio --audio-format mp3 -o "%%(title)s.%%(ext)s" --add-metadata %dl% pause The output from this code is: [youtube] 2Y6Nne8RvaA: Downloading

问题 Here is my code import eyed3 audiofile = eyed3.load("19 Calvin Harris - Summer.mp3") print(audiofile.tag.artist) This is an error Traceback (most recent call last): File "C:\Python34\testmp3.py", line 5, in <module> print(audiofile.tag.artist) AttributeError: 'NoneType' object has no attribute 'artist' There's attributes shown in Visual Studio. but when i run it.an error occurred when i write print(audiofile) it works. i don't know why ps. Python 3.4. 回答1: Title and Artists are available

问题 This question already has answers here : Closed 9 years ago . Possible Duplicate: how to read and write MP3 to database Hi I need to read and store mp3 files as bytes in sql server and C#.. How can I do that? 回答1: SQL Server BLOB (Binary Large Object) lets you store image and mp3 data as raw binary in database. if you want get something up and running quickly, check this one. http://www.databasejournal.com/features/mssql/article.php/3724556/Storing-Images-and-BLOB-files-in-SQL-Server-Part-2

问题 In recorderjs rec.exportWAV([callback][, type]) is used to generate a Blob object containing the recorded audio in WAV format. But the WAV file is taking large space, for 30sec it is approximately 1mb. So I want to record the audio in format of mp3/m4a which takes less space. Is there any way to record audio in format of mp3/m4a. 回答1: i think you should check this link : HTML5 record audio to file here u can change the audio type like this : type = type || config.type || 'audio/wav'; 回答2:

问题 My application lists audio files (MP3) in a NSTableView, with the object for each row containing a path to the audio file. I would like to be able to preview an audio file with Quick Look (like in Finder) when hitting the space bar while one row is selected. By looking at related questions and answers, I noticed that the API seems to be private and so it's been very hard to find recent and reliable information or documentation about this, let alone in Swift. What's more, most examples I found

问题 Naudio Library: http://naudio.codeplex.com/ I'm trying to convert an MP3 file to a WAV file, but I've run in to a small error. I know what's going wrong, but I don't really know how to go about fixing it. Here's the piece of code I'm running: private void button1_Click(object sender, EventArgs e) { using(Mp3FileReader reader = new Mp3FileReader(@"path\to\MP3")) { using(WaveFileWriter writer = new WaveFileWriter(@"C:\test.wav", new WaveFormat())) { int counter = 0; while(reader.Read(test,

问题 I want to be able to play an alarm sound using Javascript in a browser window, preferably with the requirement for any browser plugins (Quicktime/Flash). I have been experimenting with the tag and the new Audio object in Javascript, but results are mixed: As you can see, there is no variant that works on all browsers. Do I miss a trick that is more cross-browser compatible? This is my code: // mp3 with Audio object var snd = new Audio("/sounds/beep.mp3");snd.play(); // wav with Audio object