Better for what? Quantization errors are obviously much smaller but 32 bit float errors are so far below audible that the difference is purely spiritual. If you have faith, you will be saved, but if you have not, you never will notice the slightest difference. Besides, when you convert back to 16 bit, it won't matter anyway.If you think you hear noise from resampling at 16 bit, I think there is something strange going on. I don't play with midi, are you sure it was originally created at 16 bit? The quantization noise from converting from one sample rate to another sample rate, starting and ending with 16 bit, is down more than 90dBfs. It could not be heard at any normal listening level if there is other signal present (i.e. some music). However, if the midi was created at 8 bit, there would be quite a difference.
When converting to 16 bit from 32 bit as the last step, you acquire only one of those larger errors. This is essentially impossible to hear under any normal circumstances.The normal procedure when reducing bit depth is to dither with noise shaping. This accomplishes two things. One, the dither eliminates the quantization distortion -- not the error itself, only the distortion caused by the error. Two, the noise shaping moves most of the added noise to the highest parts of the audio spectrum. Since human hearing is much less sensitive at these high frequencies, most of the additional noise is inaudible.In reality, although it is essentially the universal practice to dither, the noise and distortion acquired by converting from 32 bit to 16 bit probably is never audible unless you want to listen to the silence between tracks -- at a very high volume level. All this is quite different at 8 bit, as you have experienced, The noise and distortion are almost always audible at 8 bit.
http://www.sendspace.com/file/eq568bTry to resample it without ever changing the bit depth. It will introduce noise.
What do you mean that one 1 large error remain?
Quote from: zerowalker on 19 May, 2013, 09:09:15 PMhttp://www.sendspace.com/file/eq568bTry to resample it without ever changing the bit depth. It will introduce noise.The volume of your file is too low. Fixed-point audio will clip above 0dB and lose quality at low volume. Normalize to about -3dBFS before resampling can improve sound quality.
The conversion-to-16-bit error is larger than the errors while working in floating point, but there is only one such error for each audio sample. Dither the conversion and eliminate the distortion.
Quote from: bennetng on 20 May, 2013, 12:55:52 AMQuote from: zerowalker on 19 May, 2013, 09:09:15 PMhttp://www.sendspace.com/file/eq568bTry to resample it without ever changing the bit depth. It will introduce noise.The volume of your file is too low. Fixed-point audio will clip above 0dB and lose quality at low volume. Normalize to about -3dBFS before resampling can improve sound quality.It doesn´t matter. If i normalize it to that, it will sound fine, but after resampling, there will be noise.But as said, it´s only in these cases, not any problem really, just thought it was more common than it was.
Windows 8, don´t know the resampler itself, but it´s in Avisynth, ResampleAudio(), it works in the bit depth you give it. Sound card it, Creative ZXR Sound Blaster.
Quantization errors never "go away". They are impossible to avoid.Dithering eliminates the distortion caused by the errors but not the errors.Dither is noise. Dithering adds still more noise to fix the distortion.Noise shaping moves the noise to less audible frequencies.Therefore, you end up with more noise, no distortion, and cleaner sound.Applying dither may be automatic in some programs but not in any I use.One must choose to dither, choose the kind of dither, choose to use noise shaping and choose what kind of noise shaping.
It´s pretty much like video dithering, it tried to replicate higher bit by adding noise that makes an illusion that it´s better than it´s acctually is.
13579 sound like you are saying, a tone going upp, and i hear this "noise" like when it´s increasing, but it think it´s supposed to sound like that, cause it´s not normal noise, it´s like when someone throw a grenade in a movie, and you get that tinnitus sound.
I did upload it here: http://www.sendspace.com/file/eq568b
Quote from: zerowalker on 20 May, 2013, 09:01:47 PMI did upload it here: http://www.sendspace.com/file/eq568bI mean the resampled 13579.wav, not this one.