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Audio bitrate in HD videos is limited to 128k

other programs can download audio up to at least 256k bitrate (audio mode 141)

mc , 29.01.2015, 19:43
Idea status: in process


alfonso, 01.02.2015, 13:58
improve audio please!!!!
mc, 13.10.2016, 00:37
Boy, I didn't even remembered I posted this already: it's in process for over a year and a half? other dlers can do this why can't 4k - and why is it taking so long?
mc, 02.01.2017, 03:59
Yeah, don't hold your breath on this... time to move on to greener pastures.
who, 10.02.2017, 16:22
what program does this
CP, 27.07.2017, 10:11
Just bought the program for €10 and I'm pretty shocked to find out audio is limited to 128kbit...
4kdownload, 17.10.2017, 14:44
Dear users,
4K VIdeo Downloader doesn't convert YouTube videos, it only extracts videos. YouTube sometimes does not provide such a quality and has video and audio stored separately.
smiam, 23.03.2018, 05:51
Youtube has only 128 kbps, other bitrates is transcodes, it won't add any frequencies above 128 kbps limit.
Simon, 16.04.2018, 17:25
What is the difference between the App to other Youtube to mp3 converters like all the one you find online?
Cody, 27.07.2018, 22:32
I noticed that audio in videos after downloading was limited in terms of high frequency range. The range per channel was up to about 12kHz despite the sample rate of 44kHz (theoretical Nyquist of 22kHz per channel). I've ran into many MP3 audio files like this, too. The three common ranges being 12kHz, 15kHz and the best sounding ones being 18kHz. It would be nice if this could be improved to 18kHz. Thanks!
calvin, 19.06.2019, 23:34
Come on guys.... the video is stored on Youtube in 128K format. If you get it from 4Kdownloader in 256K or 320K.. guess what? It will STILL BE 128K frequency inside the 256K or 320K envelope. You can't create the missing quality by artificially up converting it. All you will do it use up more CPU, and hard drive space. It's not possible to create missing data. Sorry it won't happen. If you download a phone number and see some digits in the middle are missing? Too Bad.

Oh, and for those that complain that other programs give you that "missing data"? download and run the program SPEK. that showd you the actual frequencies in those magical programs that find the missing data. It's not there. you simply have a 128K audio file that has been repackaged in a 256k or 320k envelope. It's the same data and it sounds the same. No better, and maybe a bit worse for the re-encoding. I know, I looked for it and that is what I found. Lots of things I downloaded from YouTube were 256k or 192k audio.. . but the actual frequency response inside the audio was exactly the same on all of them. Its like taking a 5x7 photo and putting it into a 8X11 envelope and you think you have an 8X11 photo... Sorry but .. it's still a 5X7 photo and the audio from youtube is still 128K

I researched this for several weeks, and became convinced that YouTube just doesn't store the audio in HD. If they don't store it they can't send it to us.

Just be happy you get the video in 1080P. That is amazing and way more important to me on my 75" tv screen. I would love to get HD audio but.. it's just not there to get..
Sycholic, 03.08.2019, 20:15
No point was just about to ask for at least 48khz audio support but given that YT does not support it nor employ it themselves... no reason to. YT uses 1) AAC LC 2) 44.1khz 3) Lossless VBR avg 125kbs its not CBR 128k asking for better audio when the source is the problem makes it not 4KDL's problem. Unless a video/audio is uploaded as legacy mpeg2 container (h.262 + aac3 or mp3 ) its always converted now..... for a few years now. (about 2015 think this change went thru only old vids even offer mp3 tracks its all AAC now hence the converter).

This is all on youtube and they dont care cuz they look at one thing only... biggest reach possible by being compatible with almost all forms of media tech.

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