I ve got a 3 hour audio… 169 meg
(quite a lot of meg really, you d think that could be saved at 40 or so meg )
I played it on bs player, it worked fine.
Thought I d put it up into audacity and perhaps chop it up into 3 one hour files.
I uploaded the mp3 file to audacity but to my surprise it did nt play in there…
the needle moved pretty quickly accross the file to play it in about 40 seconds
What is happening ? you d think it would play ok !
“Real” quality sound goes by at 300MB per hour. That’s 44100 sample rate, 16-bit, mono. Double for stereo. So you have compressed music files prepared in an unknown format. You should probably installed FFMpeg as well as lame. FFMpeg includes libraries and tools to open many more file types.
I understand that for quality, music audio you might need big files,
but this is just 3 hours of audio, Ive seen 1 hour audio files come in at 12 meg and have
this is a 3 hour coast to coast audio… 128 bps Lame mp3
cant see any other info, Im sure Ive got the lame download, so surely it should play ok in
Thanks for the tip on file extentions, Ive just unchecked that
Just downloaded the For FFMpeg/LAME on Windows:
As a rough rule of thumb,
For uncompressed CD quality stereo music: 10 MB per minute
For compressed, reasonable quality stereo music: 1 MB per minute (10:1 compression)
Compressing greater than 10:1 will cause noticeable loss of sound quality.
3 hours = 180 minutes.
If the audio is mono then you can get reasonable quality at about 0.5 MB per minute.
Try “Preset: Medium” for mono or stereo music - the quality is likely to be about the same as 128 kbps but for mono the file size is likely to be significantly smaller.
3 hours in 12 MB = 4 MB per hour = (about) 68 kB per minute = (about) 1.1 kBps = (about) 8 kbps
That is lowest quality that MP3 will go to and the sound quality is rubbish (similar to a bad phone line, but “bubbly”).
Just re uploaded the 3 hour audio file, strangely the time line for the whole file
is 35 secs !
and that is how long the curser takes to move across the file, the sound, as you can imagine,
is like a million bats in a bat cave
Just cant figure why this basic mp3 file wont play in audacity
it plays ok in bs player, in windows media player … etc.
Audacity will open plain MP3 files without the lame software – lame is an export module – but it uses FFMpeg to open more modern compressed formats. Playing extremely fast is very typical of Audacity trying to open and play a music file it doesn’t understand. So you do not have an MP3 file, you have an MP3 file mislabeled, or you have a very unusual MP3 file. Did you do the step where you revealed the filename extensions? Did you install FFMpeg?
Other players may be able to manage the work because they’re either paid software or have in some way incorporated all the filters and codecs needed. Audacity is free software and there are restrictions to what we can do. MP3 Export, for one example, is paid, licensed software by Fraunhofer-Gesellschaft. MP3 play is free.
yes I did both those actions, the file still reads lame mp3 and still plays in 31 seconds!
I downloaded the ffmpeg file and think it installed,
maybe it needs a full reboot to have effect ?
I switched off the comp an hour ago but using the half moon button top left on the
keyboard that puts the comp in a hybernation mode ?
What you re saying its a kind of codec problem ? the windows media player plays it
because its got a lot of codecs installed .
Right. So it’s a Windows Media file, and that explains all the symptoms. It might open if you got your FFMpeg working. Go into Audacity Preferences > Libraries and see if both of the library settings are happy.
@stardust2003: This is a screeshot of any Audacity_1.2.x version, that is more than seven years old. Please see “Help > About Audacity” for the exact version number, but only Audacity_1.2.x has no “Tracks” menu. I’m afraid that nobody can help you if you work with a such an old Audacity version. Please upgrade to a reasonably new Audacity version. The current Audacity version is Audacity_2.0
If it’s an AVI file, then you’ll need to extract the audio from the AVI container.
There’s a few programs that can accomplish that, but (probably) the most
“fun” is graphedit (new versions work on NT platforms now).
Remember to make a “back-up” copy of the original file before you start
messing with it.
Also, on a non-back-up copy, did you try renaming the file to *.mp3 before
importing it? Probably won’t work, but who knows.
Did you record the audio or download it? Just wondering what type of
recording equipment records to *.avi…