Quicktime pro resampler quality? Options

[Mix3dmessagez]

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*

[Mix3dmessagez]

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

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

[nu774]

Try something like the following

-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.

[Mix3dmessagez]

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 * 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