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Author Topic: Feature Request: Resampling for low quality ONLY  (Read 1250 times)

mockthedevil

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Feature Request: Resampling for low quality ONLY
« on: August 16, 2011, 05:16:38 pm »

Could really use a resampling option that resampled sources less than 44.1KHz ONLY.  My DAC won't accept some of my audiobooks sampled at 22KHz, but I don't want J River resampling my 176KHz hi res stuff.
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Matt

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Re: Feature Request: Resampling for low quality ONLY
« Reply #1 on: August 16, 2011, 05:42:39 pm »

I agree, it's a good idea.  We'll try to add this soon.  If it isn't done in two weeks, please bump this thread to remind us.

And welcome to Interact.
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Matt Ashland, JRiver Media Center

Matt

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Re: Feature Request: Resampling for low quality ONLY
« Reply #2 on: August 17, 2011, 03:05:16 pm »

Coming in 16.0.154 (and later):
NEW: Added DSP Studio > Output Format resampling mode 'Only sources less than 44,100 Hz'.
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Matt Ashland, JRiver Media Center

jmone

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Re: Feature Request: Resampling for low quality ONLY
« Reply #3 on: August 17, 2011, 04:26:37 pm »

Matt this is a good change as I too have Video Files some of which have low audio sample rate stuff typically recorded by cheap camcorders including rates such as:
- 7,875Hz in mov
- 16,000Hz in wmv
- 22,050Hz in wmv and AVI
- 32,000Hz in wmv and mpg


The reason I like it is I "almost" provides a "Resample to next support sample rate" so that I could only resample stuff my Audio Card did not like (I currently resample everyting to 96,000hz).  Then I though, Mmmmm what if there are other unsupported sample rates above 44.1Khz (this new option would fail).  It looking at my library I did find plenty of stuff with "std" rates (44,100Hz 48,000Hz 96,000Hz 192,000Hz), but I did see some odd reported sample rates:
- 1,00Hz in mp4  - but it really is 48,000Hz
- 131,073Hz in DV-AVI - but it really is 48,000Hz
- 131,089Hz in AVI - but it really is 48,000Hz
- 157,553Hz in MKB - but it really is 48,000Hz
- 393,217Hz in MKV - but it really is 48,000Hz

So two things:
- The parser/splitter used in these cases is just missreporting the sample rate (so playback works fine) and
- Is there any "non" std sample rates above 44.1KHz that will cause playback to fail on std audio card?
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Hendrik

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Re: Feature Request: Resampling for low quality ONLY
« Reply #4 on: August 17, 2011, 04:29:08 pm »

The multiples of 44,100 are not supported everywhere - 88,200 and 176,400.

But they are plenty rare.
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