hello,
I am trying to convert a short .wav file to mp3 using LAME, to use as a cellphone ring tone. However, LAMEencodes the file to an mpeg-2.5 layer III file, which my phone can't play. How do I force LAME to encode an MPEG-1 file? I might be stupid but I can't figure it out from the LAME documentation or online help.
thanks much!
Mike
Full Version: how to convert wav to mpeg-1 using LAME?
QUOTE (rustydomino @ Apr 28 2007, 06:01) 
hello,
I am trying to convert a short .wav file to mp3 using LAME, to use as a cellphone ring tone. However, LAMEencodes the file to an mpeg-2.5 layer III file, which my phone can't play. How do I force LAME to encode an MPEG-1 file? I might be stupid but I can't figure it out from the LAME documentation or online help.
thanks much!
Mike
I am trying to convert a short .wav file to mp3 using LAME, to use as a cellphone ring tone. However, LAMEencodes the file to an mpeg-2.5 layer III file, which my phone can't play. How do I force LAME to encode an MPEG-1 file? I might be stupid but I can't figure it out from the LAME documentation or online help.
thanks much!
Mike
Choose a bitrate >= 80 KBit/sec should force LAME to use MPEG-1 Layer 3.
OK, I found out how to do it. the source .wav file I had had a sample rate of 11025 Hz, which is what made LAME encode it to mpeg2.5 layer III. To get it to convert to an mpeg1 layer III file, I had to upsample to a sample rate compatible with mpeg1 (e.g., 32, 48, or 44.1 kHz). Now LAME converts this file to mpeg2 (which is OK).
to do this, I downloaded a freeware program called Wavosaur (http://www.wavosaur.com/), which seems to work OK.
cheers,
Mike (off to upload MOnty Python ringtones!)
to do this, I downloaded a freeware program called Wavosaur (http://www.wavosaur.com/), which seems to work OK.
cheers,
Mike (off to upload MOnty Python ringtones!)
QUOTE (rustydomino @ Apr 28 2007, 06:55)
OK, I found out how to do it. the source .wav file I had had a sample rate of 11025 Hz, which is what made LAME encode it to mpeg2.5 layer III. To get it to convert to an mpeg1 layer III file, I had to upsample to a sample rate compatible with mpeg1 (e.g., 32, 48, or 44.1 kHz). Now LAME converts this file to mpeg2 (which is OK).
to do this, I downloaded a lousy shareware program. Are there any open source programs for windows that will do wav file up/downsampling?
thanks,
Mike
to do this, I downloaded a lousy shareware program. Are there any open source programs for windows that will do wav file up/downsampling?
thanks,
Mike
QUOTE
Source
--resample 8/11.025/12/16/22.05/24/32/44.1/48 output sampling frequency in kHz
Select output sampling frequency (for encoding only).
If not specified, LAME will automatically resample the input when using high compression ratios.
--resample 8/11.025/12/16/22.05/24/32/44.1/48 output sampling frequency in kHz
Select output sampling frequency (for encoding only).
If not specified, LAME will automatically resample the input when using high compression ratios.
QUOTE (rustydomino @ Apr 28 2007, 07:55)
to do this, I downloaded a freeware program called Wavosaur (http://www.wavosaur.com/), which seems to work OK.
You can do the same with the recorder that comes with every version of Windows
Start->All Programs->Accessories->Entertainment->Sound Recorder
Load the wave, select "Save as" from the File menu, and press the "Change" button.
At least former versions of Windows Sound Recorder had a -ahem - not very good resampling algorithm.
Why don't you use LAME's built-in resampler? It is not bad...
Add --resample 32000 or whatever you like to the commandline
Why don't you use LAME's built-in resampler? It is not bad...
Add --resample 32000 or whatever you like to the commandline
QUOTE (Sunhillow @ Apr 28 2007, 10:38)
At least former versions of Windows Sound Recorder had a -ahem - not very good resampling algorithm.
Why don't you use LAME's built-in resampler? It is not bad...
Add --resample 32000 or whatever you like to the commandline
Why don't you use LAME's built-in resampler? It is not bad...
Add --resample 32000 or whatever you like to the commandline
probably because of the crappy documentation? I quote lame --help:
--resample n output sampling frequency
pretty cryptic for someone who doesn't know what they're doing
Mike
You want to be grateful there is some documentation!
I've seen open source projects with this level of documentation...
User: "What does this switch so?"
Developer: "Download the source code and look for yourself."
Cheers,
David.
I've seen open source projects with this level of documentation...
User: "What does this switch so?"
Developer: "Download the source code and look for yourself."
Cheers,
David.
QUOTE
probably because of the crappy documentation? I quote lame --help:
--resample n output sampling frequency
--resample n output sampling frequency
Lame --longhelp: --resample <sfreq> sampling frequency of output file (kHz)
Not so cryptic
lame --resample 44100 inputfile.wav outputfile.mp3 will result in an outputfile of 44100 Hz Other parameters you can choose for yourself, I hope
/me thinks lame is not really made for people who don't hate setup wizards
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