According to lame's manual, -s sould be used only with raw audio files,
i.e. wav files with no header. If the input file is an ordinary wave which has
a header, lame will use the sample rate, defined in the header.
So, either your input wave file is sampled at 8 kHz, or the bitrate (24kbps)
is too small and lame forces a resample to 8 kHz.
If you want to try to force the encoder (lame) to produce 16 kHz mp3,
you could use --resample:
--resample sfreq
sfreq = 8, 11.025, 12, 16, 22.05, 24, 32, 44.1, 48
Select ouptut sampling frequency (only supported for encoding).
If not specified, LAME will automatically resample the input
when using high compression ratios.
On 4/15/06, Marty Huntzberry <[EMAIL PROTECTED]> wrote:
> I have a large wav speech file (SPM4854.wav) that I would like to encode to
> an mp3 with 16 kHz 24 kbps single-ch MPEG-2 Layer III (10.7x) qval=3.
> Typing:
>
> lame -s 16 -b 24 SPM4854.wav SPM48524.mp3
>
> encodes an mp3 at 8 kHz and 24 bits. I have sox-can I use that to help me
> make a file with a frequency of 16 kHz?
>
> I am able to encode another file with 16 kHz and 24 bits with lame. It's
> possible-maybe the problem wav file's header needs to be stripped-how?
>
> Marty
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>
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