Does mp2 (mpeg layer2 audio) support 8KHz, 11.025kHz, and 12kHz sample rate ?

i think it supports 16, 22.05, and 24

[edit]
from lame:

MPEG-1 layer III sample frequencies (kHz): 32 48 44.1
bitrates (kbps): 32 40 48 56 64 80 96 112 128 160 192 224 256 320

MPEG-2 layer III sample frequencies (kHz): 16 24 22.05
bitrates (kbps): 8 16 24 32 40 48 56 64 80 96 112 128 144 160

MPEG-2.5 layer III sample frequencies (kHz): 8 12 11.025
bitrates (kbps): 8 16 24 32 40 48 56 64 80 96 112 128 144 160
[/edit]


later

Which doesn't actually answer the question.

I've been researching it for the last fifteen minutes or so and even I am not able to tell for certain.

But from what I've seen so far I would make the educated guess that MP2 only goes as far down as 24kHz and as far up as 48kHz.

omg... you can connect the dots, can't you?

MPEG-I and MPEG-II only define {32, 48, 44.1, 16, 24, 22.05}, so I guess MP2 doesn't support 8kHz.

FYI, tooLAME seems to support {48, 44.1, 32, 24, 22.05, 16}.

Did you notice that the original poster asked something about mp2 (Layer II) and you answered with something about Layer III?

Yes, the support for even lower sampling rates has been added to mp3 by FhG. This is known the as MPEG-2.5 VLSF extension and is not part of the ISO standard (11172-3 or 13818-3).

To answer the original question about mp2: a quick look at the sources of the MAD decoder revealed that it supports ISO/IEC 11172-3 (MPEG 1) and ISO/IEC 13818-3 (MPEG 2) only for Layer II. That means that MPEG 2.5 VLSF can't be decoded by MAD - and therefore this format probably does not exist (yes I know, twisted logic here ).
Conclusion: no, MP2 does not support 8, 10.025 and 12 kHz sampling rates.

smack, i'm glad you were able to come to this conclusion a day after i told you

fantastic

As smack already told you, you wrote about Layer III not Layer II in your previous answer.

Try reading everything first before talking out of your ...

my understanding of the samplerates supported in mpeg1 layer2 were also the samplerates supported in (mpeg1 layer3 and mpeg2 layer3) which is why i quickly posted my response and info of lame (toolame wasn't installed on my machine).

my intention was to provide the OP with the lowest samplerates supported than i knew of.

mpeg1 layer2 does not support mpeg2.5, which lame (mpeg1/2/2.5 layer3) does. this was poorly worded by me in my original post.

toolame info:
Allowable bitrates for 16, 22.05 and 24kHz sample input
8, 16, 24, 32, 40, 48, 56, 64, 80, 96, 112, 128, 144, 160

Allowable bitrates for 32, 44.1 and 48kHz sample input
32, 48, 56, 64, 80, 96, 112, 128, 160, 192, 224, 256, 320, 384
brate indx 1 2 3 4 5 6 7 8 9 10 11 12 13 14


later

I was about to crack wise at you too but, hey, at least now you've redeemed yourself by finding the most conclusive info so far.