[ProAudio] Lossless audio on YouTube
dan at lavryengineering.com
Fri Apr 23 16:23:22 PDT 2021
I have not looked for a while, but my moment about 44.1 and 16 bits was meant to reflect what utube offers as an acceptable standard. I belive that 44100H is the fastest and 16 bits is the maximum. I will be glad to hear when they increase it, if they ever do...Similar limitations seem to exist in digital wireless via WiFi. I did not see any support from ic makers for 192k, or even 96k for 2.4GHz or 5.6GHz. There is plenty to choose from for 44.1 or 48KHz. The technical issues are different then for compression. What is similar is the fact that most consumers don't care...RegardsDan LavrySent from Samsung Galaxy smartphone.
-------- Original message --------From: Chris Caudle via ProAudio <proaudio at bach.pgm.com> Date: 4/23/21 4:01 PM (GMT-08:00) To: proaudio at bach.pgm.com Subject: Re: [ProAudio] Lossless audio on YouTube On 2021-04-22 22:14, cheater cheater via ProAudio wrote:> The trend of only ever releasing lossy audio to the general> publicI think it would be more accurate to say only releasing lossy audio along with video on free streaming sites.For most music specific releases you can usually still buy the CD, or download high quality files.For video you can get BluRay which has lossless audio.> But you can't look up the differences between> guitar string gauges. Music and music education are being left behind> in a world where everything else is allowed to flourish on the new> medium.I think you are exaggerating how bad the audio quality is. I checked a video from a music analysis/commentary/education channel I'm familiar with, and these are the audio formats available (you should usually get the best quality your connection rate can support):opus @ 53k (48000Hz), 8.05MiBopus @ 70k (48000Hz), 10.59MiBmp4a.40.2 at 129k (44100Hz), 19.38MiBopus @137k (48000Hz), 20.65MiBI checked a couple of music only videos (the previous had a lot of dialog, I'm not sure if the bit rate is varied based on whether the video has primarily dialog or music) and those seem common:opus @ 45k (48000Hz), 1.60MiBopus @ 59k (48000Hz), 2.12MiBopus @120k (48000Hz), 4.24MiBmp4a.40.2 at 129k (44100Hz), 4.58MiBopus @ 50k (48000Hz), 2.06MiBopus @ 65k (48000Hz), 2.70MiBopus @127k (48000Hz), 5.23MiBmp4a.40.2 at 129k (44100Hz), 5.31MiB127kb/s obviously isn't 256kb/s, but it's better than radio or analog TV broadcast.> Are there any plans known? Any lossless web codecs being planned or> released by Google or Mozilla?I think if there was a big demand for higher quality audio the first and easiest thing would be to just use 256kb/s opus and AAC. That would not require any changes to the existing software, and results in imperceptible differences to the original for almost all listeners.> Is anyone trying to reach out to video hosting sites to make them> aware of the issue with lossy audio for music?I don't think you have defined "the issue" well enough to begin with. If your argument is that the compressed audio sounds different than the original source material, I think you would need to be able to make some kind of argument that the differences are objectionable, and objectionable enough that it is driving away viewers.YouTube isn't making all those videos available because they are charitable to you, they do it to sell advertising, so anything that drives up the cost would need to be justified in some way by driving more revenue. You can be sure that if YouTube thought increase the audio bit rate from 129kb/s to 160kb/s or 256kb/s would bring in more views they would do it.On 2021-04-23 16:08, Dan Lavry via ProAudio wrote:> YouTube channel accommodates 44.1K 16 bits.All of the files have lossy compression I believe, so I'm not sure what "16 bits" means in that context, you can't really make an apples to apples comparison between uncompressed PCM bit depth and lossy compressed files.> Download speed is still an issue, especially for slow internet.It is not just download speed, it is cost of transit for that much data. I have seen various numbers from 1 billion to 5+ billion videos streamed per day from YouTube.That could be on the order of 10 million GB per day of data they have to move. I have not looked into wholesale Internet data transit rates in a long time, but that has to be a lot of money no matter how much of a bulk discount you get.-- Chris Caudle_______________________________________________ProAudio mailing listProAudio at bach.pgm.comhttp://bach.pgm.com/mailman/listinfo/proaudio
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