Hi Gary. Size of file doesn't determine which end of the spectrum is thrown away. It's based on psycho-acoustic algorithms that try and determine what it believes you can't hear so dropping the range at both ends of the spectrum is the most likely stuff to throw away as people commonly lose hearing in these areas as they age.
Regards. Kevin E-mail: [EMAIL PROTECTED] ----- Original Message ----- From: "Gary Wood" <[EMAIL PROTECTED]> To: "PC audio discussion list. " <pc-audio@pc-audio.org> Sent: Tuesday, February 27, 2007 7:51 AM Subject: Re: mp3 bit rates >I thought that since MP3 is a smaller file, that maybe you would lose more > highs than lows. > ----- Original Message ----- > From: "Kevin Lloyd" <[EMAIL PROTECTED]> > To: "PC audio discussion list. " <pc-audio@pc-audio.org> > Sent: Monday, February 26, 2007 3:28 PM > Subject: Re: mp3 bit rates > > >> Absolutely right... You'd never use less than a 44.1khz sampling rate >> for >> music. The sampling rate tells you how many times you're going to sample >> the data per second. The bit rate tells you how many bits will be used >> in >> each one second sample. So, the higher the sampling rate and the bit >> rate >> then the better the quality. >> >> Some nice explanations to be had at: >> http://www.mp3developments.com/article6.php >> >> Regards. >> >> Kevin >> E-mail: [EMAIL PROTECTED] >> ----- Original Message ----- >> From: "Rich De Steno" <[EMAIL PROTECTED]> >> To: "PC audio discussion list. " <pc-audio@pc-audio.org> >> Sent: Monday, February 26, 2007 8:03 PM >> Subject: Re: mp3 bit rates >> >> >>> But is it not true that high bit rate and low frequency will degrade >>> sound >>> quality just as much? Compare a music file of let's say 192 KBS and 22 >>> KHz >>> with the same music at 64 KBS and 44.1 KHz. >>> >>> >>> ----- Original Message ----- >>> From: "Kevin Lloyd" <[EMAIL PROTECTED]> >>> To: "PC audio discussion list. " <pc-audio@pc-audio.org> >>> Sent: Monday, February 26, 2007 2:46 PM >>> Subject: Re: mp3 bit rates >>> >>> >>>> Hi Chris. >>>> >>>> The sampling rate of 44.1 khz does not mean the music is CD quality. >>>> The >>>> bit rate will determine the frequency response of the music which is >>>> the >>>> real measure of quality. >>>> >>>> So, a bit rate of 128kbps will yield a frequency range that is much >>>> more >>>> limited than 320 kbps which means less low end and high treble >>>> frequency. >>>> Less dynamic frequency range, less quality... >>>> >>>> There was a great resource which gave a table of frequency range >>>> against >>>> bit >>>> rates but unfortunately I can't find it just yet. >>>> >>>> Regards. >>>> >>>> Kevin >>>> E-mail: [EMAIL PROTECTED] >>>> ----- Original Message ----- >>>> From: "Chris Skarstad" <[EMAIL PROTECTED]> >>>> To: "PC audio discussion list. " <pc-audio@pc-audio.org> >>>> Sent: Monday, February 26, 2007 7:25 PM >>>> Subject: Re: mp3 bit rates >>>> >>>> >>>>> Actually, most mp3s that are at either 128k, 160k, and 192k and up to >>>>> 320k, usually have a sampling rate of 44100 KHZ. >>>>> That's cd quality. >>>>> >>>>> >>>>> At 12:32 PM 2/26/2007, you wrote: >>>>>>Hi, >>>>>> >>>>>>Does anyone have any info on the range of mp3s at different bit >>>>>>rates? For example is an mp3 at 192 30 Hz to 18 kHz? I heard mp3s >>>>>>at 128 only go up to 16 k, is that true? >>>>>>THANKS! >>>>>> >>>>>> >>>>>> >>>>>>Gian Pedulla >>>>>>[EMAIL PROTECTED] >>>>>> >>>>>>Audio List Help, Guidelines, Archives and more... >>>>>>http://www.pc-audio.org >>>>>> >>>>>>To unsubscribe from this list, send a blank email to: >>>>>>[EMAIL PROTECTED] >>>>>> >>>>>> >>>>>>__________ NOD32 2082 (20070226) Information __________ >>>>>> >>>>>>This message was checked by NOD32 antivirus system. >>>>>>http://www.eset.com >>>>> >>>>> >>>>> >>>>> Audio List Help, Guidelines, Archives and more... >>>>> http://www.pc-audio.org >>>>> >>>>> To unsubscribe from this list, send a blank email to: >>>>> [EMAIL PROTECTED] >>>>> >>>> >>>> >>>> >>>> Audio List Help, Guidelines, Archives and more... >>>> http://www.pc-audio.org >>>> >>>> To unsubscribe from this list, send a blank email to: >>>> [EMAIL PROTECTED] >>> >>> >>> >>> Audio List Help, Guidelines, Archives and more... >>> http://www.pc-audio.org >>> >>> To unsubscribe from this list, send a blank email to: >>> [EMAIL PROTECTED] >>> >> >> >> >> Audio List Help, Guidelines, Archives and more... >> http://www.pc-audio.org >> >> To unsubscribe from this list, send a blank email to: >> [EMAIL PROTECTED] > > > > > Audio List Help, Guidelines, Archives and more... > http://www.pc-audio.org > > To unsubscribe from this list, send a blank email to: > [EMAIL PROTECTED] > Audio List Help, Guidelines, Archives and more... http://www.pc-audio.org To unsubscribe from this list, send a blank email to: [EMAIL PROTECTED]
