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Showing results for tags 'sample rate'.
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I have a long history in telecom so I understand the concept of sampling an analog signal and turning it into a digital stream. Perfect example is the early 64K channels in T1's for voice (sample 2x highest frequency and create 8 bit word or each sample (8000Hz * 8 bits = 64K channel). And obviously a digital bit-stream must be sampled at a certain rate to accurately turn it back into analog. But I am confused as to what and how up-sampling works and how it could even create a better quality analog signal from the original digital signal.
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How could it happen that audio file's bitrate is 1024kbps but it has 44.1 kHz sampling frequency at 16 bits. 44.1(kHz) * 16(bits) = 705.6 kbps. Is it not? Am I missing something ?
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- bitrate
- sample rate
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Interested in the facts? One of the world’s top converter designers Dan Lavry has written a new paper in simple language to demystify the subject. http://www.lavryengineering.com/pdfs/lavry-white-paper-the_optimal_sample_rate_for_quality_audio.pdf See why many professional engineers still work at 96kHz years after 192kHz became available. Find out why “more” is not always “better!”
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Dear fellow audio enthusiast, Today I published a first draft of mpd-monitor, a minimal load and realtime monitor of an audiostream as handled by mpd. A screencast says it all: Details and documentation are available at the gitlab repository: https://gitlab.com/ronalde/mpd-monitor/. When you experience bugs or issues, which will be the case, please submit those in the gitlab project. I would like to hear your thoughts. Happy listening and monitoring, Ronald
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Hi, New member here, hoping for some help. I have a DigiOne player (RPI3b+ & DigiOne), powered by the standard RPI wallwart PSU, connected to the DAC in an Audiolab 8200CD, which is connected to my hifi amp. The Audiolab DAC is capable of playing 24 bit 96 kHz files, via USB input or via SPDIF coax but I can't find any way to get the RPI/DigiOne to output sound higher than 16 bit 44.1kHz. I don't have another SPDIF source capable of outputting hi res files but I have used a windows 10 laptop via USB connection to achieve 24 bit 96kHz (which I can see via the DAC's display). I had to change windows sound settings to output at the correct quality but it works. I started using the SPDIF output on the DigiOne (as that's what it's there for), using Volumio. I signed up to a trial of Tidal and MyVolumio and tried using the native Tidal support in Volumio. I am playing Master Quality files but they are only showing as 16 bit 44.1kHz on the DAC. I then tried outputting the sound directly to the DAC via USB from the RPI (as I know I can get 96kHz from my laptop) but that didn't work either. As far as I can tell, I've been through all the settings in Volumio and can't seem to fix this. I also tried streaming Tidal to Moode using BubbleUPNP from an android phone but again, can't get above 16 bit and 44.1kHz. I'm new to streaming in this way but work in IT and reasonably technically minded. Really scratching my head on this though, any help much appreciated. Thanks!
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- digione player
- hires
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