Topic: wala rin ba kwenta ?

[fweyd]

I have loads of mp3's here that i ripped from my friends cd's 

so right now i have them in mp3's at 128kbps format.. If i burn them to CD's by album. and Play them in my CD Player. Would it make a difference in Quality

Also, whats the difference between CD Players ?? Bat ung iba mas mahal ? Mas maganda ba sound? 

[rascal101]

In my experience higher sampling rate = better performance/sound quality.

It really depends on how good your set-up is to know the difference between a CD and an MP3 burned at 128kbps. Pls take a look at http://www.silcom.com/~aludwig/Sysdes/Musicsp.gif and take note of the musical instruments which have frequencies 10KHz and higher. Pay close attention to these instruments. A higher sampled recording will sound better than a lower sampled one. Also pls read http://www.cco.caltech.edu/~boyk/spectra/spectra.htm.

The differences in the the various CD player has to do with the various sections of a CD player (eg CD transport, DAC, buffer amplifier (after DAC), output stage etc. I just mentioned the ones I thought are the major blocks. Better implementation of the various sections will definitely result in better performance.

I have done some work in this matter and found although other sections do matter the major factor in sound reproduction is the sampling being done by the DAC (based on Nyquist criterion with minimum sampling freq = 2x maximum audio freq) and the output stage section - is the DC blocking capacitors implemented properly? is it using tube buffer? is output directly coupled?

[av_phile1]

The mp3 compression, even at 128 kb bitrate,  losses much high frequencies above 16khz.  The compression algorythm is based on psychoaccoustic masking phenomenon  where the fundamentals or strong signals can mask weaker signals like higher order harmonics.  The compression discards those weak signals.  With some recorded materials, this may not matter,  But for others, it can be obvious in a good high fidelity system at home.  Not really a problem with mobile earphones on portable players.

[D0Hbert]

Try playing mp3s on a revealing setup, you'll notice that they'll sound flat. Tinatanggal ng algo yung frequencies na di natin madinig, or nasasapawan ng mas malakas na frequency, so di raw mapapansin kung tinanggal. I think di tama ito. You'll notice that mp3s sound compressed and flat, walang depth, walang wide soundstage, walang air and di na maganda separation ng instruments/voices.

[fweyd]

so.. if i burn mp3's to audio cd's ganun parin

Napansin ko nga, I have Bamboo's Light Peace Love cd here.. Played Dinner at 6 (very jazzy/contemporary feel) then I played the mp3 I ripped. may audio quality loss nga.. ang tanong ko if i burn it to an audio cd.. pangit pa rin ba quality ?? or mas ok ?

[AICRAG]

nag try na rin ako nyan 3yrs ago...la kwenta sound lalo sa rock genre.
imagine mo mp3 na pinigang sponge, tapos para mag audio cd, babanatin at try palakahin.  walang laman na sponge.
in my experience, not worth doing it.

[av_phile1]

The nice thing about digital is your copy is as good as the orig.  Burning mp3 files into a CD will just preserve their limited bandwidth.  I think this is just fine if you have a portable DVD player and earphones and you want hours of private music without having to bring along a bagful of CDs.

There are pirated mp3 CDs in tiangge stalls.  One CD can hold more than 100 titles. It's essentially just an mp3 data file you can organize into folders or directories that most DVD players can read.   I have a few of them I got many years ago.   

[D0Hbert]

Junk in Junk Out ang moto ko, so pag pangit ang source, pangit din ang ikakalabas kahit anong medium gamit. Sayang lang at walang nagsusupport ng FLAC or APE na music compression, LOSSLESS sya meaning kahit compressed to half the size, IDENTICAL sya sa source na CD, bit for bit. I only saw one portable player that supported flac, US brand sya, parang audiovox, not so sure.

[izukiultra]

Junk in Junk Out ang moto ko, so pag pangit ang source, pangit din ang ikakalabas kahit anong medium gamit. Sayang lang at walang nagsusupport ng FLAC or APE na music compression, LOSSLESS sya meaning kahit compressed to half the size, IDENTICAL sya sa source na CD, bit for bit. I only saw one portable player that supported flac, US brand sya, parang audiovox, not so sure.

Thats correct! If your source is Pangit no matter what format you transfer it still Junk! Why bother about MP3 format, you can draw line between portable players & Audiophile set-up.

[av_phile1]

MP3s may not have the full 20hhz bandwidth of regular CDs.  But I have to disagree to those who say this is junk.  Audio compression based on psychoaccoustics works very well.  It worked well during the days of Noise Reduction  in Dolby B and C for cassette tapes.  It works just as well with AC-3 or Dolby Digital in DVDs.  Listening  on iPods and other MP3 players likes those Walkman cellphones has convinced me that MP3s on portable headphones can be guite impressive on most materials.  At a fraction of electricity cost, it seems to me that these emerging mobile systems can approximate the listening pleasures from a home system.

Having said that, I still won't encode MP3s on CDs to listen on a home system.  But MP3s on mobile players using excellent headphones will do just fine.