I read here that dithering adds noise to the space in between the original frequencies and the upsampled to make it a more accurate upsampling.
Would you recommend that I turn dithering on for this or perhaps Anti Aliasing? If I was to use dithering, is there a way to only apply the effect to the frequencies that must be upsampled?
Original sound (tone from 20 kHz to 96 kHz, 16 bit 192 kHz): http://img543.imageshack.us/img543/8640/orig.pngfoobar2000 + SoX (resample to 44.1 kHz) -> analog input (recorded at 24 bit 192 kHz): http://img688.imageshack.us/img688/448/sox.pngFrequencies above 22.05 kHz is not filtered. How can it possible?
1. PassBand defines what will be passed to the bass (frequencies), correct?
2. Aliasing and Phase Response are supposed to improve quality over distorted sound, correct?
3. So assuming I do not have distorted sound and everything sounds great, should I disable them to get the maximum benefit, or can someone explain to me in simple words what they really do and how I can benefit from them?
There are two links in the first post of this thread: to SoX FAQ and to help file.
A resampler's band-width setting determines how much of the fre‐ quency content of the original signal (w.r.t. the original sam‐ ple rate when up-sampling, or the new sample rate when down-sam‐ pling) is preserved during conversion. The term `pass-band' is used to refer to all frequencies up to the band-width point (e.g. for 44.1kHz sampling rate, and a resampling band-width of 95%, the pass-band represents frequencies from 0Hz (D.C.) to circa 21kHz). Increasing the resampler's band-width results in a slower conversion and can increase transient echo artefacts (and vice versa).
Uploaded hereGood quality, fast resampler (~2 times faster than PPHS Ultra, although ~2.5 times slower than regular PPHS). Minimum / intermediate / linear phase.Any comments?Added: If you want to know what settings are best:1. Read SoX FAQ, "What are the best 'rate' settings to resample a file and retain the highest quality?"2. This post: http://www.hydrogenaudio.org/forums/index....st&p=626176 (an excerpt from SoX help)3. Feel free to experiment and decide what's best for you.