Re: Opus 1.3-rc
Reply #51 – 2018-06-16 12:09:32
Well, it is possible that I may be exaggerating things, but I was in no way saying that I'd listen to a 9kbps Opus song for daily purposes--I just meant that for 9kbps, the result is (at least for me) exceptional compared to what other codecs can offer at the same bitrate. But no, I'd never listen to a 9kbps Opus song for daily listening stuff--for that, I'd happily use (at least) 48kbps (but I'd rather use 64kbps) (I'm not that picky with quality, and a bit of artifact adds a nice touch to the audio, I dunno why I think that way) But 9kbps... never XD I was just strictly saying 14kbps is THE minimum I would suggest for 'speech' (not music) as if you got lengthy speech files it's a nice way to keep the storage space very minimal for hours and hours of speech while maintaining a decent level of speech quality. I suspect that minimum suggested kbps setting will vary a bit from person-to-person but just testing on my Klipsch Pro-Media speakers that's the conclusion I came to as the sound clarity starts to take a solid hit below 14kbps which is why I drew the line at 14kbps as my minimum suggested setting for speech. but yeah, considering speech quality of Opus at 9kbps etc, while there is clearly a hit to the sound quality, it's respectable given the VERY low/next to nothing bit rate. but as you said, I am more concerned with sound quality at that point to where I would rather lose a bit of disk space to clean up the sound a bit. hence, my 14kbps+ suggestion. but for music it's a whole different ball game to where I am pretty much inline with you with the 48-64kbps thing being about the minimum I would possibly use. like for bit rates lower than 96kbps (I use 96kbps as the minimum for someone who's concerned with quality), 64kbps is a solid choice. for those who prefer to use minimal storage space for music, 48kbps is a possible option. hell, even 32kbps is solid considering the very low bit rate but unless someone is trying to cram a bunch of music into the least amount of storage space possible I would generally stick to at least 48kbps+ minimum. but for the most part I stick with 96kbps on more important music for on-the-go listening and for less important music I use 64kbps (using this combo I managed to fit pretty much my entire music collection onto a 8GB MicroSD card). it's possible I would consider 48kbps but it would have to more-or-less be one of those situations where your really hard up for space and I don't want to cut out songs. but come to think of it... I really need to do a little testing to see how music with Opus @ 32kbps/48kbps sounds in comparison to 64kbps on my headphones to see if I can detect any more obvious differences or not as if not, then 48kbps could be a realistic choice for me for further efficiency if I need to squeeze more songs on that 8GB MicroSD card in the future.