2
votes
2answers
2k views

Convert mp3 from mono to stereo using Lame

An application requires that the mp3 files it receives are encoded with 2 channels (stereo), but the original files have only 1 channel (mono). We use Lame for conversion, but i fail to make it clone ...
3
votes
2answers
2k views

Covert WAV to MP3 without adding silence at the beginning

Here's whay I need to do: Convert a 30.0 sec WAV to a 30.0 MP3. I've tried doing this using LAME however no matter what I try LAME always adds a short moment of silence to the output mp3. Using LAME ...
2
votes
1answer
2k views

Dump/load metadata with FFmpeg (WMA to MP3)

I need to convertĀ WMA metadata into MP3 ID3 tags. FFmpeg should be able to dump them into a file and load them back to another using implemented mappers. I cannot find syntax of usage though: ...
3
votes
3answers
405 views

Mac- or Unix-compatible utility to compute and compare LAME MusicCRC in MP3s?

The LAME encoder stores a CRC16 checksum of the audio stream in the header of every MP3 it encodes. The 'actual' audio checksum can then be computed and compared to the original value at a later date ...
5
votes
2answers
2k views

Most efficient way to convert a large ALAC library to MP3

I have a large library of CDs ripped to alac which I use as my main music library. I'd like to convert a copy of this library to vbr mp3 for portable devices, however I don't want to have to do this ...
2
votes
0answers
178 views

Automatically convert WAV files into MP3 files on Mac

Someone already had similar question but he wanted to convert FLAC into MP3. In my case I want to convert WAV into MP3 and the solution in the other question doesn't help me. Workflow would be the ...
1
vote
3answers
6k views

How does iTunes 128 kbps AAC compares with LAME MP3 (-V 2, or -preset fast standard)?

I've been ripping my CD's to MP3 using LAME, with -preset fast standar (or -V 2), since audio listening tests find that LAME with these settings is transparent and as good as top quality Ogg Vorbis or ...
2
votes
1answer
1k views

LAME: Switch sample rate of file without reencoding?

Is it possible to resample an MP3 file to a different rate (44.1) without doing a reencode? I have a few MP3 files that are at 48 and I need to switch 'em to 44.1, and I don't want to have to reencode ...
0
votes
2answers
1k views

Convert wav file to mp3

I have a wave file with encoded using the following. (Taken from VLC Media information) Codec: PCM S16 LE (araw) Channels: Stereo Sample rate: 44100 Hz Bits per sample: 16 The file is 30 MB I want ...
6
votes
4answers
30k views

How to install libmp3lame for ffmpeg

I already have ffMpeg running on my test server. I would want to convert all possible audio files to mp3. I get the error 'codec not found'. here's what i typed: /var/www/i/uploads$ sudo ...
0
votes
1answer
417 views

Windows Media Player will not play files compressed with winLame using LAME encoding

We have a client who cannot listen to audio files we are compressing with winLame using the LAME mp3 encoding. Anyone have any idea what is happening here?
2
votes
3answers
698 views

Converting mp3 to ogg, suggestive?

I'm thinking about converting my mp3 based music library to ogg, due to ogg being a free and open standard format (I guess there are other reasons too). As far as I know there's a chance of losing ...
1
vote
2answers
636 views

How to mix MP3's using LAME

I have N MP3 files (N files for example). I need to superimpose, or mix them into one. Is there a special LAME function for performing such an operation?