Refers to the "container" that that data is stored in and how that data is encoded.
4
votes
5answers
1k views
Is there a method (or tool) to convert video from a SWF container to another more portable format (e.g., H.264)
I have a client who has misplaced the original source video, only has an SWF, and would like to use it in a non-flash environment.
Is there any way to do this?
So far, I've tried ffmpeg but it's ...
2
votes
1answer
425 views
When I read “MPEG-4 AAC”, does this mean 'AAC', 'AAC+ Version 1', or 'AAC+ Version 2'?
I'm encoding .3gp videos.
Instructions say, under audio codec: "MPEG-4 AAC".
On audio settings, I can choose between "AAC", "AAC+ Version 1" and "AAC+ Version 2".
I'm lost. Can anyone enlighten me?
...
2
votes
1answer
80 views
Format conversion safety of files linked from Audacity projects
If I record in WAV, create an Audacity project that links to those files, modify the project, export the final cuts, save everything, convert the WAV files to FLAC to save space, then convert the FLAC ...
1
vote
3answers
1k views
Best lossy format for music?
Which one of the lossy file formats like Ogg, AAC, Mp3, Wma has the best quality/size ratio?
I've seen that AACs are smaller than MP3 at the same bitrates. Do they sound worse than MP3?
2
votes
1answer
92 views
File formats supporting multiple streams [closed]
While designing a new feature for a software application that I'm working on, I am attempting to define a table structure for audio files, and I have the following question. Do mp3, m4a, wav, aac, ...
11
votes
8answers
17k views
Free batch conversion from FLAC to Apple Lossless (ALAC)?
I am looking for a free tool that would allow me to convert large amounts of FLAC files to ALAC (Apple Lossless Audio Codec) while preserving the meta information and optionally adding new information ...
0
votes
2answers
1k views
Free Linux tool to convert FLV to MP3
I'm looking for a free Linux tool that can convert a rather large collection of FLV files into MP3 format. Most of the tools I've tried use ffmpeg under the hood, but they fail to convert many of the ...
0
votes
2answers
116 views
What formats and compression should I use for my audio library?
I would like to see some recommendations regarding how I should keep my classical music collection in iTunes.
I cannot use FLAC because this will not work in iTunes or iOS.
I suppose I could use ...
4
votes
3answers
3k views
Sample-accurate AIFF to WAV conversion on Mac OSX
I've just come home from a studio with a freshly-mastered track, which I have on my computer as a stereo .AIFF file. I would like to submit this track to a particular compilation online, and the ...
2
votes
1answer
1k views
WMV vs MP4 Streaming & Download
I work for a company that outputs videos in many formats.
We currently stream movies in FLV format, offer downloads in a WMV and MP4 format.
However in the interest of saving server space and ...
5
votes
2answers
208 views
In what ways does mp4 improve on mp3?
I know mp4 is supposed to have 'higher sound quality at a lower file size', but:
how does it do this? How does it compress more information into a smaller space?
How much of mp3 is still used? Was ...
7
votes
2answers
250 views
How do mp3 encoders compress audio?
I know they remove certain sounds, like extreme highs and lows, but how does this really work?
What information is decided to be thrown out? Is it just done by frequency and typical human hearing ...
7
votes
1answer
211 views
Help choosing audio rip format for longevity.
I've been using MP3 for a decade for my audio collection, but with the (not so) recent developments in open source vs patented codecs such as H.264 I am wondering if an alternative format is ...
22
votes
4answers
2k views
Any reason not to convert WAV to FLAC and save some disk space?
As I understand the technologies, WAV is a raw, uncompressed format and FLAC is a compressed but lossless format.
My research has shown that FLAC files "still maintain all the audio fidelity"src of ...
