Sample rate conversion |
Sample rate conversion |
 Apr 11 2011, 18:50
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#1
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Group: Members Posts: 8 Joined: 18-July 07 Member No.: 45403  |
Hello everyone.
I have a question regarding sample rate conversion algorightms. I don't know how they work, but I guess you guys are more familiar with this  Let's say I have a 48 kHz wave file that I want to use in something I have to mix with some 96 kHz material at certain places. This requires the 48 kHz file be resampled and in the end back to 48. So in short: does resampling 48 --> 96 --> 48 change the original or can the original be restored 100% ? I'm using Wavelab for this. |
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Apr 15 2011, 17:10
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#2
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Group: Members Posts: 147 Joined: 31-July 08 Member No.: 56508 |
I've just verified that SoX never preserves the values of original samples because its bandwidth (-b) parameter cannot be set to 100%, it's limited between 74 and 99.7%.
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MannyCalavera Sample rate conversion Apr 11 2011, 18:50
saratoga QUOTE (MannyCalavera @ Apr 11 2011, 13:50... Apr 11 2011, 18:58 Arnold B. Krueger QUOTE (MannyCalavera @ Apr 11 2011, 13:50... Apr 12 2011, 14:29 Axon If you are just mixing, then you ought to be able ... Apr 12 2011, 20:09
2Bdecided QUOTE (Axon @ Apr 12 2011, 20:09) If the ... Apr 13 2011, 15:21 Axon QUOTE (2Bdecided @ Apr 13 2011, 09:21) Th... Apr 13 2011, 22:43 Canar QUOTE (Axon @ Apr 13 2011, 14:43) I think... Apr 14 2011, 00:03 Axon QUOTE (Canar @ Apr 13 2011, 18:03) QUOTE ... Apr 14 2011, 03:26 Wombat QUOTE (2Bdecided @ Apr 13 2011, 15:21) Yo... Apr 13 2011, 16:05 bandpass Given 10 seconds of 440Hz tone and upsampling from... Apr 13 2011, 20:25 Wombat QUOTE (bandpass @ Apr 13 2011, 20:25) Giv... Apr 13 2011, 20:47 bandpass QUOTE This must be lowpassed already even if i don... Apr 13 2011, 21:19 Wombat I admit i have no clue about some things you talk ... Apr 14 2011, 00:44 Canar QUOTE (Wombat @ Apr 13 2011, 16:44) I adm... Apr 14 2011, 00:52 Wombat QUOTE (Canar @ Apr 14 2011, 00:52) Sample... Apr 14 2011, 00:58 Canar QUOTE (Wombat @ Apr 13 2011, 16:58) Exact... Apr 14 2011, 01:03 saratoga QUOTE (Wombat @ Apr 13 2011, 19:44) I adm... Apr 14 2011, 01:03 Wombat QUOTE (saratoga @ Apr 14 2011, 01:03) Alt... Apr 14 2011, 01:11 saratoga QUOTE (Wombat @ Apr 13 2011, 20:11) QUOTE... Apr 14 2011, 01:17 bandpass QUOTE (saratoga @ Apr 14 2011, 01:17) Obv... Apr 14 2011, 07:30 Axon QUOTE (bandpass @ Apr 14 2011, 01:30) QUO... Apr 14 2011, 19:38 bandpass QUOTE (Axon @ Apr 14 2011, 19:38) Strictl... Apr 14 2011, 20:24 Wombat QUOTE (bandpass @ Apr 14 2011, 20:24) aft... Apr 14 2011, 20:46 bandpass QUOTE (Wombat @ Apr 14 2011, 20:46) I sti... Apr 14 2011, 22:16 Alexey Lukin QUOTE (bandpass @ Apr 14 2011, 17:16) Bec... Apr 14 2011, 22:26 Wombat QUOTE (bandpass @ Apr 14 2011, 22:16) Usi... Apr 14 2011, 22:27 bandpass QUOTE (Alexey Lukin @ Apr 14 2011, 22:26)... Apr 15 2011, 07:18 Alexey Lukin 48 -> 96 kHz conversion may leave signal sample... Apr 14 2011, 21:35 Wombat QUOTE (Alexey Lukin @ Apr 14 2011, 21:35)... Apr 14 2011, 21:49 Wombat I am getting slowly mad in here or lowpass myself ... Apr 14 2011, 22:49 bandpass Okay, curiousity got the better of me: in the 48k ... Apr 15 2011, 10:39 Wombat Many thanks bandpass for your efforts. Very intere... Apr 15 2011, 16:24 Wombat QUOTE (Alexey Lukin @ Apr 15 2011, 17:10)... Apr 15 2011, 18:11 bandpass All I have told you is what I have observed throug... Apr 15 2011, 22:17 Alexey Lukin This is only due to the fact that you used the sin... Apr 16 2011, 06:27 bandpass QUOTE (Alexey Lukin @ Apr 16 2011, 06:27)... Apr 16 2011, 08:41 Alexey Lukin Agreed. Apr 16 2011, 08:45 |
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