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  1. danadam

    Cognitive dissonance and ASR

    Performance review of Thomas Savage ;)
  2. danadam

    Ending the Windows Audio Quality Debate

    I believe the difference is whether the device provides any volume controls to the operating system or not. From what I understand @Aerith Gainsborough has RME Adi-2 (not sure if DAC or Pro), which doesn't provide volume controls to the OS. What do you have @edechamps ? Here I have Tanchjim...
  3. danadam

    Improve readability of the forum

    I have a bookmark with the following javascript code: javascript:(function(){var newSS, styles='body { width: 65em ! important; margin: auto !important } '; if(document.createStyleSheet) { document.createStyleSheet("javascript:'"+styles+"'"); } else { newSS=document.createElement('link')...
  4. danadam

    Why we hear what we hear

    I don't know... he ignored it the first time it was posted :-) https://www.audiosciencereview.com/forum/index.php?threads/relationships-between-physical-sound-auditory-sound-perception-and-music-perception.5549/page-2#post-2179472 I didn't watch the video, only read a summary on sound science...
  5. danadam

    Warner Bros DVDs from 2006–2008 are rotting away in their cases

    https://arstechnica.com/gadgets/2025/03/they-curdle-like-milk-wb-dvds-from-2006-2008-are-rotting-away-in-their-cases/
  6. danadam

    Is the term resolution' applicable in audio?

    I'd be careful saying that this is "time resolution" because then someone will come arguing "Ah! So CD time resolution is only 22 µs after all!"
  7. danadam

    Master Thread: Are measurements Everything or Nothing?

    That's what it reminded me of: "First Thoughts are the everyday thoughts. Everyone has those. Second Thoughts are the thoughts you think about the way you think. People who enjoy thinking have those. Third Thoughts are thoughts that watch the world and think all by themselves. They’re rare, and...
  8. danadam

    How much dynamic range is too much

    I'm not sure what you mean by "in a time function". That graph shows FFT magnitude, so it's a function of frequency. Maybe there are some advanced algorithms which change the noise shape dynamically, depending on content, but usually the shape is constant. Here are options available in SoX...
  9. danadam

    How much dynamic range is too much

    I recorded the noise in my room using UMIK1. That's what REW shows for this file, in dBFS: The levels are: -75.8 dBFS (RMS), -81.7 dBFS (C), -88.6 dBFS (A) (This is without using the calibration file.) To check the audibility of signals at/below noise floor (at least for single tones) I...
  10. danadam

    Minimum Phase, constant delay (aka linear phase), whazzit?

    Any reason why not to set the axes manually?
  11. danadam

    How much dynamic range is too much

    I have this Beethoven version, both 24-bit and 16-bit, bought from https://www.eclassical.com/labels/bis/beethoven-the-nine-symphonies-2.html According to the short-term LUFS the quietest parts are in the 2nd movement at around 9:30 and 14:30. Here's the graph for 9th- and 14th-minute: I took...
  12. danadam

    Serious Question: How can DAC's have a SOUND SIGNATURE if they measure as transparent? Are that many confused?

    I've seen this: Though I've read it was (ab)used to imply a naughtier gesture :-)
  13. danadam

    Shouldn't we upgrade the 20-20 audible range ?!

    If you want to be that pedantic, then we only know you typed the difference, we don't know if you said (told?) it ;-)
  14. danadam

    YouTube audio quality and your upload settings

    He doesn't say what audio codec he used in his mov and mp4 uploads. Here is sweep uploaded in 1080p MP4 with ALAC: www.youtube.com/watch?v=0n55vzDb3rQ Spectrograms seem fine to me: input: downloaded Opus stream: captured when playing in Chromium (which resamples to 44.1k): and the...
  15. danadam

    FiiO has released the USBDAC JA11, with an initial price of only $9 (69RMB) and support for PEQ DSD128 PCM384

    No, through the whole the track. In attachment there is captured output from JA11 and Samsung dongle played at similar volume. In alsamixer JA11 was at -29 dB and Samsung dongle was at -25.5 dB. Through Truthear Zero Blue that's moderate volume. The captured audio contains some music in the...
  16. danadam

    process an SACD-ISO file

    A bit unrelated: Correct me if I'm wrong, but it seems the graph is somewhat misleading in the vertical direction. The blue trace shows, I assume, spectrum of the DSD noise floor, while the bottom edge of the boxes is at -144 dB, which is integrated value for 24-bit PCM noise floor. The spectrum...
  17. danadam

    Yes, anyone, even old people can hear 21 kHz (test attached)

    Is there any practical difference between "wave is made up of sines" and "wave can be reconstructed from sines"? Can a wave with zero rise time physically exist? To my knowledge, no.
  18. danadam

    Yes, anyone, even old people can hear 21 kHz (test attached)

    Maybe he changed the file in the meantime, but it doesn't look so bad here (gain 0, range 120): Your "square" wave seems to have 2nd harmonic (and quite a lot of DC): What I can hear are the discontinuities at the moment of switching. When the test file is prepared properly, like the one...
  19. danadam

    BEGINNER QUESTION : Getting "BitPerfect" output in Linux ?

    You read data from /proc/asound/ and that's handled by ALSA: https://www.kernel.org/doc/html/v4.17/sound/designs/procfile.html AFAIK both pulseaudio and pipewire use ALSA drivers underneath, so that's why it will work for both.
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