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Quicktime pro resampler quality?
Mix3dmessagez
post Mar 28 2012, 20:23
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I use quicktime to downsample needledrops to 48hz tvbr *for ipod use*
I've also come across foobar sox resampler which I've read is the best
I've tried to do comparisons *downsample with sox to 48000hz then convert with quicktime or convert using quicktime*
Usually the bitrates will be the same *on average* however sometimes sox downsamples will be one bit higher *on average*
I've tried to look at the individual bitrates for the first few seconds of each song *Just to see if there's a conclusive difference* and they seem to handle things quit differently, I notice the bitrate changes faster when downsampled with sox, I know that probably isn't a determinant as to quality, but it's all I know
With sox I use very high, 48000hz, 95% passband, allow aliasing, 25% phase response *someone at another forum said those are best settings*
On quicktime, best quality, variable bit rate, and recommended sample rate
I also want to know as if Sox is better I can resample all needledrops to 48hz flac *from 96 to save space*
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Mix3dmessagez
post Apr 12 2012, 04:23
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QUOTE (Wombat @ Apr 11 2012, 21:14) *
If there really someone was interested in listening these files you should offer the original source so if there is an audible difference one has to check what is nearer to the original.


I don't know how to cut flac files


QUOTE (nu774 @ Apr 11 2012, 22:26) *
If you are interested, now qaac lets you play around with CoreAudio sample rate converter. If you want to try sample rate converter only, use -D option (WAV output).
https://sites.google.com/site/qaacpage/
https://github.com/nu774/qaac/wiki/Sample-rate-conversion


Hi, I would like to know if you could tell me how to make tvbr like in quicktime pro with highest sample rate conversion, and how to create it in "custom" foobar encoder option please?

I tried myslef and got this

1 out of 1 tracks converted with major problems.

Source: "C:\Users\************\Downloads\Kid Cudi - Man on the Moon II- The Legend of Mr Rager [Vinyl][FLAC]\11 MANIAC.flac"
An error occurred while writing to file (The encoder has terminated prematurely with code 1 (0x00000001); please re-check parameters) : "C:\Users\Patricia Shustin\Desktop\alac\11. MANIAC (feat. Cage & St. Vincent).mp4"
Additional information:
Encoder stream format: 96000Hz / 2ch / 24bps
Command line: "C:\Users\******\Desktop\desktop\qaac_1.31\x86\qaac.exe" --native-resampler=bats,127 "11. MANIAC (feat. Cage & St. Vincent).mp4"
Working folder: C:\Users\*******\Desktop\alac\

Conversion failed: The encoder has terminated prematurely with code 1 (0x00000001); please re-check parameters

This post has been edited by Mix3dmessagez: Apr 12 2012, 04:43
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nu774
post Apr 12 2012, 05:08
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Try something like the following
QUOTE
-V 127 --native-resampler=bats,127 - -o %d

-V means TVBR AAC encoding. If you want WAV output, change "-V 127" to "-D".
"-" (a hyphen before -o) means receiving audio from stdin/pipe, which foobar2000 will stream audio to.
-o %d means to set output filename to %d (placeholder of foobar2000).
You will always need "- -o %d" part. Others are up to your own taste.
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Mix3dmessagez
post Apr 12 2012, 05:35
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Hi, thank you so much!I see you are the creator of this amazing app.

I still am having trouble though, i used qaac as the encodder, extension as mp4, perimeters as -V 127 --native-resampler=bats,127 - -o %d *thanks to you smile.gif* and format as lossy, 16 bit maximum, encoder name TVBR, settings TVBR.

I am providing all this info as at this point I'm sure the error now is not on the permiters part but something with my configuration.

I already use your great program to convert flac to alac using qaac, which keeps the 24 bits and high sample rate, then convert using quicktime pro, sadly, all the tags become lost though, does this preserve tags?

This post has been edited by db1989: Apr 12 2012, 09:32
Reason for edit: as in post #6
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Posts in this topic
- Mix3dmessagez   Quicktime pro resampler quality?   Mar 28 2012, 20:23
- - DVDdoug   QUOTE *someone at another forum said those are bes...   Mar 28 2012, 20:48
- - IgorC   http://src.infinitewave.ca/ has Apple resampler i...   Mar 28 2012, 21:20
- - Mix3dmessagez   QUOTE (DVDdoug @ Mar 28 2012, 15:48) [gia...   Mar 28 2012, 22:27
|- - saratoga   QUOTE (Mix3dmessagez @ Mar 28 2012, 17:27...   Mar 28 2012, 23:19
|- - Mix3dmessagez   But what if the source material is digital and pre...   Mar 28 2012, 23:29
|- - saratoga   To be clear, I'm saying that the process of cr...   Mar 28 2012, 23:31
- - nu774   If you are using MacOS X, you can try afconvert (C...   Mar 29 2012, 05:05
- - SebastianG   I don't know about how well Quicktime does res...   Mar 29 2012, 10:35
- - Wombat   QUOTE (SebastianG @ Mar 29 2012, 10:35) T...   Mar 29 2012, 16:58
- - Wombat   I hope it is of some help. I did some simple examp...   Mar 31 2012, 03:15
- - Mix3dmessagez   QUOTE (nu774 @ Mar 29 2012, 00:05) If you...   Apr 12 2012, 01:40
|- - nu774   If you are interested, now qaac lets you play arou...   Apr 12 2012, 03:26
- - Wombat   If there really someone was interested in listenin...   Apr 12 2012, 02:14
- - Mix3dmessagez   QUOTE (Wombat @ Apr 11 2012, 21:14) If th...   Apr 12 2012, 04:23
|- - nu774   Try something like the following QUOTE -V 127 --na...   Apr 12 2012, 05:08
|- - Mix3dmessagez   Hi, thank you so much!I see you are the creato...   Apr 12 2012, 05:35
|- - nu774   Still getting errors? See what foobar2000 says on ...   Apr 12 2012, 06:41
- - nu774   Ah, I've forgotten one thing: You will need ...   Apr 12 2012, 06:49
|- - Mix3dmessagez   QUOTE (nu774 @ Apr 12 2012, 01:49) Ah, I...   Apr 12 2012, 06:56
|- - nu774   QUOTE (Mix3dmessagez @ Apr 12 2012, 14:56...   Apr 12 2012, 07:25
|- - Mix3dmessagez   thanks, solved my issue!last problem though, I...   Apr 12 2012, 07:39
|- - nu774   QUOTE want quicktime best vbr but in its quicktime...   Apr 12 2012, 08:09
|- - Mix3dmessagez   I'm sorry for being unspecific.I'll try to...   Apr 12 2012, 08:37
|- - nu774   Well, it's interesting. Quickly tried now QT p...   Apr 12 2012, 09:45
|- - Mix3dmessagez   QUOTE (nu774 @ Apr 12 2012, 04:45) Well, ...   Apr 12 2012, 21:55
|- - nu774   QUOTE (Mix3dmessagez @ Apr 13 2012, 05:55...   Apr 13 2012, 02:31
|- - Mix3dmessagez   QUOTE (nu774 @ Apr 12 2012, 21:31) QUOTE ...   Apr 13 2012, 02:50
|- - nu774   QUOTE (Mix3dmessagez @ Apr 13 2012, 10:50...   Apr 13 2012, 04:53
|- - Mix3dmessagez   QUOTE (nu774 @ Apr 12 2012, 23:53) QUOTE ...   Apr 13 2012, 05:37
|- - nu774   QUOTE (Mix3dmessagez @ Apr 13 2012, 13:37...   Apr 13 2012, 07:11
|- - Mix3dmessagez   QUOTE (nu774 @ Apr 13 2012, 02:11) QUOTE ...   Apr 13 2012, 07:23
|- - nu774   QUOTE (Mix3dmessagez @ Apr 13 2012, 15:23...   Apr 13 2012, 08:07
|- - Mix3dmessagez   QUOTE (nu774 @ Apr 13 2012, 03:07) QUOTE ...   Apr 13 2012, 09:14
|- - IgorC   QUOTE (Mix3dmessagez @ Apr 13 2012, 05:14...   Apr 13 2012, 16:44
- - Wombat   Better ask on some audiophile forum for an abx of ...   Apr 13 2012, 14:06


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