The only thing I find related to frequency response is a low pass filter which is set at 30 kHzDepends what order it is and how many db down at 30k it already is.
Cheers George
Frequency response while streaming stops at 15kHz- did I miss something in the fine print?
I am streaming with Qobuz. It sounds great playing both CD quality and hi-rez music. So what's the trouble? While working to get the bass response in my room just right I found test tracks on Qobuz. This was very handy as I played 30-60 Hz test tones over and over. So when I was done with that I streamed a pink noise track and pulled up the FFT analyzer app on my iPhone. Surprisingly, I see the trace drop straight down to 0 dB above 15 kHz. I streamed some test tones and confirmed that above 15 kHz nothing is happening at the speakers. In my old and decrepit state I can no longer hear above 15 kHz so I am relying on the app. In a panic that something is wrong with my speakers I pull out my vinyl test record. I have a nice, pretty flat frequency response from 20-20 kHz showing on the FFT app. I put in a test CD and again show a good 20-20k. Lastly, I ripped the test CD onto my server and again had a good 20-20k response. So why did I not know about the limited bandwidth while streaming? Is it just me? It is an abrupt cutoff above 15 kHz while streaming. What's going on?
Showing 5 responses by georgehifi
Played back from my PC and the response seemed to stop at 15 to 16KHz. I suspect the reason was not my test tones or my system, but a limitation of the iPhone microphone.I suspect it more that they save 20% of streaming/download space by not letting it go out to 20k regardless if there's info on it or not. Cheers George |
Allan Silverman one of the recording industries best. https://youtu.be/EiRMYoqU3ys?t=575 Cheers George |
Because nothing is compressed in life’s sounds, why do it to our music!! Is a live artist you sit in front of compressed NO! (my theory is for the companies to save space on streaming/downloads) Also leaving it uncompressed gives the music a chance to breath, (you can’t have loud bits if there are no quiet bits), also gives the ears/brain a chance to breath as well, instead of everything being the same level and sounding confused. Cheers George |
Frequency response while streaming stops at 15kHz- did I miss something in the fine print?If you think that’s bad being band width limited, look at the dynamic range of it, as they use the later re-issues not the originals the way the band/s wanted it to be heard. Then purchase CD’s that have not been compressed (usually 1st issue), search here for those.Cheers George |