mp3

mp3剪切器如何剪切mp3音频文件

寵の児 提交于 2019-12-06 09:46:59
相信很多人都会有这种想法吧,有些音乐太长,但是只觉得音乐的高潮部分比较好听,其他的地方则是一般。那么如果想只听一小段的话,可能需要把一部分音乐剪下来,也就是音乐剪辑。剪辑音乐需要专门的软件才可以做到。那么,下面就是MP3剪切器怎么剪辑音乐的教程了。一起来看看如何操作吧。 1、首先就是下载安装剪辑音乐的软件了。也就是迅捷音频转换器了。点击下面的按钮,然后把软件下载到桌面上。在软件中选择D盘为安装软件的位置,如果直接点击立即安装,然后会默认安装在C:\Users\AppData\Roaming\AudioEditor中。 2、然后就是打开软件进行使用音频剪辑功能了。打开之后软件会默认使用音频转换功能的。所以需要更换一个音频剪辑的功能,在软件上方点击选择即可。当然软件当中其他的功能也是可以直接选择使用的。 3、然后就把需要剪辑的MP3音频文件添加到迅捷音频转换器当中。点击软件当中的添加文件按钮或者点击添加文件夹,把需要剪辑的音乐导入到软件中。或者可以选中文件然后拖拽到软件中也能添加。 4、然后就是设置转换输出文件的保存位置了。一般软件都是默认输出在桌面上C:/Users/Desktop,不过也可以保存在其他的地方,那就是点击更改路径按钮,然后选择其他的位置保存就可以了。 5、然后就是设置剪辑输出的文件参数了。设置参数的位置在软件右侧。软件分为手动分割、平均分割和按时间分割

How to mix Mp3 files

非 Y 不嫁゛ 提交于 2019-12-06 08:46:38
问题 I would like to mix MP3 files with Delphi 2010. Is this possible? Does anyone know of a component (set) I could use to get this done? Or maybe a runtime library? Any tips from someone with experience mixing MP3 files? 回答1: I use newAc: http://symmetrica.net/newac/ it has a soundmixer component and supports mp3 inputs. Cheers! 回答2: FFmpeg has pascal headers, which apparently you can use from delphi: http://www.iversenit.dk/dev/ffmpeg-headers/ This should allow you to load mp3s or any other

Sending mp3 file through PHP to be used with the audio tag of HTML5 fails in the middle of the mp3

南笙酒味 提交于 2019-12-06 08:24:39
I'm trying to send my mp3 files through a PHP script in order to hide the path to the file in the HTML. Everything works perfectly fine except half way into the mp3 chrome gives me a GET [URL] error. And the rest of the mp3 is just blank. The audio tag thinks it's still reading the file, but there is no sound. This is how I'm sending the mp3 file from php: if (file_exists($filename)) { header("Content-Transfer-Encoding: binary"); header("Content-Type: audio/mpeg"); header('Content-length: ' . filesize($filename)); header('Content-Disposition: inline; filename="' . $filename . '"'); header('X

Audio speed changes on converting WAV to MP3

萝らか妹 提交于 2019-12-06 08:08:06
问题 I create a WAV ( PCM ) to MP3 converter. But the output is too fast. This is the code, that converts the encoding. FILE *pcm = fopen(in_path, "rb"); FILE *mp3 = fopen(out_path, "wb"); int read, write; const int PCM_SIZE = 8192; const int MP3_SIZE = 8192; short int pcm_buffer[PCM_SIZE*2]; unsigned char mp3_buffer[MP3_SIZE]; lame_t lame = lame_init(); lame_set_in_samplerate(lame, sampleRate); lame_set_brate(lame, byteRate); lame_set_num_channels(lame, channels); lame_set_mode(lame, MONO); lame

Running lame from php

这一生的挚爱 提交于 2019-12-06 07:44:23
I am trying to run lame from a php script. I have tried these, but no luck, I don't get anything returned! Any ideas? system('lame', $returnarr); system('lame --help', $returnarr); exec('lame', $returnarr); passthru('lame', $returnarr); even this one returns nothing: exec('which lame', $returnarr); I am on OSX and final deployment will be on Linux. Do you have better suggestions for an automated wav->mp3 conversion? From php, should I execute a bash script that executes Lame? Try something like this: $output = array(); $result = -1; exec('`/usr/bin/which lame` --help 2>&1', $output, $result);

Converting 3gp (amr) to mp3 using ffmpeg api calls

怎甘沉沦 提交于 2019-12-06 06:57:13
问题 Converting 3gp (amr) to mp3 using ffmpeg api calls I try to use libavformat (ffmpeg) to build my own function that converts 3gp audio files (recorded with an android mobile device) into mp3 files. I use av_read_frame() to read a frame from the input file and use avcodec_decode_audio3() to decode the data into a buffer and use this buffer to encode the data into mp3 with avcodec_encode_audio. This seems to give me a correct result for converting wav to mp3 and mp3 to wav (Or decode one mp3 and

What trick will give most reliable/compatible sound alarm in a browser window for most browsers

核能气质少年 提交于 2019-12-06 06:32:43
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 var snd = new Audio("/sounds/beep.wav");snd.play(); // mp3 with EMBED tag $("#alarmsound").empty()

How to edit mp3 file details (Delphi)

南楼画角 提交于 2019-12-06 05:20:53
问题 How can i edit mp3 file details , such as Description , Title , Subtitle , Rating , Artist , ... using delphi . is there any component to do this ? Thank you 回答1: You may probably be able to manipulate not only ID3V1 but ID3V2 as well. so, this is library that may help you http://www.3delite.hu/Object Pascal Developer Resources/id3v2library.html 回答2: I don't remember where I got this unit from, but I used it for a pet project a while ago: unit ID3v2; interface uses Classes, SysUtils; const

Trouble playing mp3s after id3 image edit

六眼飞鱼酱① 提交于 2019-12-06 05:07:25
Due to hardware restrictions, the software we produce tries to ensure that any audio file it imports into it's library (ready to be copied onto the hardware) is an acceptable bit rate. Recently we've started using FFmpeg to convert a number of different audio types to mp3 to allow them to be imported and used on our hardware. Whilst the conversion works fine and the mp3 files work on our hardware afterwards, we're having issues specifically when adding an album art to the ID3 tags of the mp3. The track will not play audio in our software. It also seems that Windows cannot pick up the values of

Set Lyrics in MP3 ID3v2 Tag

孤者浪人 提交于 2019-12-06 05:03:07
问题 I want to write lyrics to an mp3 in an Android application.I have found a java library for reading mp3 files and reading/manipulating the ID3 tags (ID3v1 and ID3v2.2 through ID3v2.4), named mp3agic. I modified mp3agic to write the lyric tag of the ID3v2 tag, writing the tag: USLT . Found in Wikipedia In a sample Android app I modify the artist, album, title, genre, lyrics, and comment of an MP3. All tags are modified correct except for the lyrics. PowerAMP is used to verify the modified MP3