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What is the bitrate of your Opus files?

16 kbps or less
24 kbps
32 kbps
48 kbps
64 kbps
80 kbps
96 kbps
112 kbps
128 kbps
145 kbps
160 kbps
175 kbps
192 kbps
224 kbps
256 kbps
280 kbps
320 kbps
350 kbps
More than 350 kbps

Voting closes: 2018-12-31 16:45:53

Topic: What is the bitrate of your Opus files? (Read 9444 times) previous topic - next topic
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Re: What is the bitrate of your Opus files?

Reply #50
If you're fine with that bitrate you may as well just use a time domain subband codec like MusePack or hell, even MP2, and enjoy the perfect temporal resolution. Throwing more bits at a transform codec doesn't do much to fix their fundamental shortcomings beyond 192 kbps.
Is there any  recent blind test which  indicates superiority of MPC over other codecs?

I've found only these old tests:
https://hydrogenaud.io/index.php/topic,36465.msg321547.html#msg321547


And  this old one
http://listening-tests.freetzi.com/html/Multiformat_128kbps_public_listening_test_results.htm




Re: What is the bitrate of your Opus files?

Reply #51
256 kbps - because with that rate i am 100% on the secure side of sound quality - and works great for converting Amiga/C64 music too.

If you're fine with that bitrate you may as well just use a time domain subband codec like MusePack or hell, even MP2, and enjoy the perfect temporal resolution. Throwing more bits at a transform codec doesn't do much to fix their fundamental shortcomings beyond 192 kbps.
I don't understand at all what you call out as time-domain, when your examples of MP2 and MPC are both frequency-domain.

Re: What is the bitrate of your Opus files?

Reply #52
Here is  a personal test @200 kbps Opus/Musepack/Apple AAC/Vorbis/MP3 of HA member, StreveForteRio
https://translate.google.com/translate?hl=en&sl=ru&tl=en&u=https%3A%2F%2Faudiophilesoft.ru%2Fnews%2F200_kbps_abc%2F2014-06-27-105

Avearge results:

Opus - 5 (all samples are transparent)
Musepack - 5 (all samples are transparent)
Apple/QAAC - 4.6
Vorbis - 4.4
LAME - 3.6

Re: What is the bitrate of your Opus files?

Reply #53
I don't understand at all what you call out as time-domain, when your examples of MP2 and MPC are both frequency-domain.

Well they both use a simple filter to split the spectrum into 32 bands but each band is PCM coded. A full blown FFT can be used for psychoacoustic decisions but that data is discarded.

Re: What is the bitrate of your Opus files?

Reply #54
If you're fine with that bitrate you may as well just use a time domain subband codec like MusePack or hell, even MP2, and enjoy the perfect temporal resolution. Throwing more bits at a transform codec doesn't do much to fix their fundamental shortcomings beyond 192 kbps.

Still does not change the fact that i love to convert with Opus - it has become my favorite Open Source codec. Flawless in every kind of ways :)

 
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