MD vs 320kbps Lame MP3?
ch...@csua.berkeley.edu
Has anyone done any comparison of MD vs 320kbps lame compressed MP3
files? Can the MP3 compete with the MD in terms of audio quality?
Raymond
{[ZenmasteR]}
MD LP2 has better definition/detail in the audio but MP3 lame encode has more "range" in the audio, maybe better Frequency range or something? (i.e the bass and treble seems overly compressed on MDLP2)
at the end of the day decent 'phones is the best way to experience the sound imo.
I compared using PC, N10 and IPOD
<ch...@csua.berkeley.edu> wrote in message news:bj6k25$616$1...@agate.berkeley.edu...
J. Tyler
> Has anyone done any comparison of MD vs 320kbps lame compressed MP3
> files? Can the MP3 compete with the MD in terms of audio quality?
Since standard ATRAC compression is listed as 292k it would appear
that a 320k MP3 has greater bandwidth, but people say ATRAC is a more
intelligent encoder. Who knows what the truth behind the algorithms
really is? You'd have to set up a blind listening comparision between
the formats with software that can play both (uncompromised) through a
digital soundcard, fed into a clean DAC.
I have a very hard time telling MD (at standard compression) from CD,
so that's good enough for me. If MP3 at 320k or even 256k can sound as
good, so be it. MD is still more versatile and durable for specific
uses.
JT
Ma...@uwaterloo.ca
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
> uses.
^^^^
I am considering an MP3 device, either to flash memory or hard drive.
My goal is to record live shows and transfer immediately to a computer,
or to another playback device.
So, I all I am looking for is a device with a good A/D and either WAV
or MP3 encoding. The ideal solution would be something like this:
http://www.minidisc.org/part_Marantz_PMD670.html
but in a consumer model. It doesn't need to be professional, but
it should have line (and maybe mic) input and be as good as portable minidisc.
Be careful about MP3 encoding quality though. MP3 players might be
comparable, but it seems not all MP3 encoders are created equal.
Take a look at:
http://www.sonarnerd.net/projects/wavcomp/
It seems the Archos Jukebox line input has both poor frequency response above
15kHz (bad A/D?), and poor MP3 encoding quality (eg., compared to "lame").
So... does anyone have recorded samples and/or experience with other MP3
encoders? It would be great to compare CD WAV, minidisc (digital output from
a standard deck), and various MP3 encoders. Can anyone help???
Richard
J. Tyler
> Be careful about MP3 encoding quality though. MP3 players might be
> comparable, but it seems not all MP3 encoders are created equal.
> Take a look at:
> http://www.sonarnerd.net/projects/wavcomp/
> It seems the Archos Jukebox line input has both poor frequency response above
> 15kHz (bad A/D?), and poor MP3 encoding quality (eg., compared to "lame").
Xing is often panned unless high speed is a must. At anything under
160k it tends to impart a watery sound. They say the original
Fraunhofer encoder excels at the 128k bitrate. LAME and Bladenc get
good write-ups and sound pretty clean to me.
JT
Ma...@uwaterloo.ca
Oops. I gave the wrong link for the Archos Jukebox. It is at:
http://shanebrinkmandavis.com/homepage/JBMM/AudioQuality.htm
It seems like it cuts off abruptly above 15kHz. So, as I said earlier,
one needs to evaluate both the protocol (MP3 vs MD) and the encoder.
If anyone has audio samples, eg., line or optical in to a Archos, Nomad, MD,
etc., please post here so we can listen...
Thanks,
Richard
Michael Conner
I *may* have some line-in recordings from the Archos I used to have.
It had pretty decent sound quality, but I never used the line in for
recording anything other than from vinyl or cassette.
I read the low-end response on the Archos recorder wasn't all that
great, either, cutting off somewhere between 50-100Hz -- can anyone
verify that?
Pete Carney
Thanks for the link. I'd be interested to see the graphs from the AJBR20.
I believe it has different encoding and ADC software than the newer MM.
In any case here is a sample from my AJBR20, running the Rockbox firmware
(http://rockbox.haxx.se) and a Sound Pro's SP-PASM-2 preamp/mic combo
(www.soundprofessionals.com).
I have done some amplitude tweaking to these files, so it's not pure.
Sorry.
The first is at a bluegrass jam at a pizza joint with 20+ musicians playing
and about 50 people eating dinner.
http://www.c3di.com/audio/archos_soundpros_sample.mp3
Cheers,
Pete
<Ma...@uwaterloo.ca> wrote in message
news:yuaad9h4d...@tapir.uwaterloo.ca...
Ma...@uwaterloo.ca
> Richard:
>
> Thanks for the link. I'd be interested to see the graphs from the AJBR20.
> I believe it has different encoding and ADC software than the newer MM.
>
> In any case here is a sample from my AJBR20, running the Rockbox firmware
> (http://rockbox.haxx.se) and a Sound Pro's SP-PASM-2 preamp/mic combo
> (www.soundprofessionals.com).
>
> I have done some amplitude tweaking to these files, so it's not pure.
> Sorry.
>
> The first is at a bluegrass jam at a pizza joint with 20+ musicians playing
> and about 50 people eating dinner.
> http://www.c3di.com/audio/archos_soundpros_sample.mp3
>
> Cheers,
> Pete
>
Thanks for the sample. That sounds pretty good at my computer... but I need
to get some headphones to check it out.
By the way, how is the Rockboxx hack? What are the chances that this will
allow WAV recording?
Richard
Pete Carney
<Ma...@uwaterloo.ca> wrote in message
news:yuad6ec...@tapir.uwaterloo.ca...
The Rockbox firmware is very good. It doesn't go beyond the limitations of
the existing hardware, but seems to work perfectly on my AJBR20.
The MAS chip will not allow any stream other than MP3 to come out of it.
Unless someone out there knows exactly what the MAS is doing and can write
new code for it, the Archos will always be MP3 only. The guys at Rockbox
have no clue what that chip is doing and Micronas won't divulge anything
either.
Cheers,
Pete
Irn Mdn
more 'bright' and some mid-frequencies are not complete.
On the same sound system, it is impossible to find any difference from
MD-SP and original CD. Just my $0.02.