![]() Immediately it’s clear that there is a massive difference between a CD’s bitrate of 1.411 Mb/s and an MP3 encoded at 192 Kb/s. We therefore get a bitrate equal to 44,100 x 16 x 2 = 1,411,200 bits per second: the bitrate of a CD is equal to 1.411 Mb/s. For CDs: 44,100 samples per second, each one sampled over 16-Bit, everything over two channels (left-right stereo). It is measured in bits per second and is calculated fairly easily. The Bitrate, the flow of binary data, expresses the speed of information per second. This affects the precision with which the sound is reproduced: the higher the sampling rate, the more natural and precise the sound reproduction will be. For a CD, the sampling rate used is 44.1 kHz, meaning that each second of sound, when converted, is divided into 44,100 samples. Sampling rate corresponds to the number of samples per second. For a CD, each sample has a resolution of 16-Bit its dynamic range is expressed over a range of 96 dB (decibels), with 1 bit corresponding to 6 dB. The difference in richness of sound and feeling is very substantial compared to MP3 files or even CD quality. This is also called studio quality because 24-Bit resolution is used in a recording studio. These files are encoded with 24-Bit resolution (as opposed to 16-Bit for CD quality). Hi-Res Audio is dedicated to audio files that deliver sound with a quality superior to that of a CD. On Qobuz, the CD quality files are available in FLAC, a lossless compression format which reduces the size of the files without altering their original quality. Digitally, CD quality corresponds to a specification which has a format equivalent to that of the original file: 16-Bit / 44.1kHz. This corresponds to the sound quality similar to that of a Compact Disc which you would listen to on a CD player. The MP3 notably allows for a file size considerably smaller than that of a CD file, hence its mass use in the streaming industry. The bit rate of 320kbps corresponds to the number of bits per second, in this instance 320,000. ![]() It is a destructive format which greatly alters the sound quality. ![]() Because I have unlimited mobile data I only do so for the situation when I don’t have connection to internet.The MP3 file is a lossy audio compression format. So I can use this albums in the offline mode to save mobile data. I download my purchased FLAC music files from Qobuz, add it tho the ROON-controlled folders on my MAC as core and then optionally I download it in Roon ARC on my phone (see “Downloads” within the “My library” section). Roon Arc would still be useful for me when I want play songs from my own collection on the go. I just wonder if there still was a way to integrate the songs locally stored from these streaming services into Roon. I know Roon Arc can’t download songs from Qobuz or Tidal. No big deal if not, but It makes Roon Arc way less attractive in my opinion if I still need to use the Qobuz app to listen to music on the go. I don’t want to eat all my mobile data, so I wondered if Roon Arc takes into account whether, when a song from Qobuz is played, if it is in your local Qobuz library or not. I have seen that it is possible to download music from your own personal library to your phone with Roon Arc. My question, can Roon play the songs that are stored locally on Qobuz or can it only stream songs from Qobuz? I’ve recently considered getting Roon since I started using Qobuz.
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