5 ms·
>without loosing quality Yes, you did lose quality, Opus is a lossy format so whatever your source material is, you will lose some quality. How important or n
by mixedCase 9y ago
>without loosing quality
Yes, you did lose quality, Opus is a lossy format so whatever your source material is, you will lose some quality.
How important or noticeable that is will depend on the opus bitrate, your hearing and your personal preferences are. But just putting this as a warning for anyone reading.
- qwerty456127 9y agoThis is obvious. Whoever collects MP3 files already knows what a lossy compression format means. I don't mean recoding FLAC to OPUS can save space without loosing quality, I mean recoding MP3 to OPUS can save space producing a file of the same quality as the MP3 original is. Obviously it will have less quality than a FLAC/CDDA original but not less than MP3 (unless you actually set the bitrate too low). E.g. I am sure converting a 256 kbits MP3 to a 192 kbits OPUS means no loss anybody can hear and converting it to 128 kbits OPUS may only mean tiny loss almost nobody can hear. Speaking about lossy format implies there is always a loss from the mathematical point of view, no loss means no perceivable loss in this context.
- drngdds 9y ago>Obviously it will have less quality than a FLAC/CDDA original but not less than MP3 (unless you actually set the bitrate too low). This is incorrect. Lossy-to-lossy transcodes always incur a quality loss. It is known
- qwerty456127 9y agoThe same kind of loss as caused by using cheap audio cables instead of golden cables perhaps... (sarcasm) It would make sense to speak about quality loss if it was about FLAC originals but not if the originals are already MP3. You can't save what is not there.
- mbreese 9y agoUmm ... no, when you recompress music that was already compressed with a lossy algorithm, you will have lower quality than if you had just stuck with the original. You can’t save what isn’t there, but that doesn’t mean that you can’t lose even more!
- deleted 9y ago[deleted]
- deleted 9y ago[deleted]
- tinus_hn 9y agoDecoding an MP3 and then encoding the data to OPUS of course incurs generational loss and will sound worse than the original MP3. You should encode from the original or losslessly compressed data.
- qwerty456127 9y agoI have lost (left behind moving) all my CDs a decade ago already and I didn't have enough HDDs to use FLAC back in the days. Now I recode my 320 kbits MP3s to 128 kbits OPUS and can't tell the difference (although I am one of those rare people who can distinguish between high (128+ kbits) MP3 bitrates).
- tinus_hn 9y agoYou can distinguish them because you know what the artifacts sound like. To go and convert all these files without saving the best original you have is kind of silly, given that storage is extremely cheap today. But suit yourself.