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Hifi Bob

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  1. Algol—the ’60s programming language? The mind boggles.
  2. Sorry, but this is nonsense. “an effect on the lower frequencies which we do hear” would be non-linear distortion that might or might not occur dependent on the playback chain and room characteristics—i.e. quasi-randomly. If a bit of thickening up of some sounds is desirable, much better to apply it during production—in the audible band, of course; this gives the best chance of the listener hearing it “as the artist intended”.
  3. Try sox's sinc filter instead of its highpass filter. By default it's like an axe, which is probably closer to what you want here.
  4. I was appalled, watching BS's video, to see him wantonly weaving technical fact with fiction in an attempt to deceive the general public for his personal gain. (Also his derailing of the scientific process—diverting attention and perhaps funds away from work towards real improvements in sound reproduction.) If the problem had really existed, there would have been articles over the years, in Sound On Sound for example, by recording engineers bemoaning the fact that they were unable to make the recordings that they wanted to. Mastering engineers would have complained that no plug-in
  5. That seems like saying if only this CD were available in MP3, I would buy it without any hesitation at all. Sure, unlike MP3, you can’t do the exact MQA encode yourself, but load it into a DAW and you can perform all manner of lossy processing to your heart’s desire!
  6. That’s odd, since providing customers with what they want doesn’t require justification. Something else he mentioned was that the mixes he receives are typically already highly compressed.
  7. Indeed, it’s far from rare: corporation/company sends blogger a cease & desist letter and given the choice of spending potentially huge amounts of time/money on lawyers, down comes the ‘offending’ blog entry—immediately.
  8. And yet MQA remains firmly stuck in the Betamax-zone. It seems that only in Japan is there a smattering of interest.
  9. Not so—have a read of http://www.dspguide.com/ch17.htm
  10. Please stop with the trolling, snide comments, etc.
  11. MQA posit that their impulse responses are less audible (as ringing) than everyone else’s, and in both frequency and amplitude, humans hear logarithmically.
  12. Long, scathing article here: http://www.iar-80.com/page170.html
  13. Type G is used in the United Kingdom, Ireland, Cyprus, Malta, Malaysia, Singapore and Hong Kong.
  14. I wouldn’t worry too much: there was no ringing evident in the 96kHz original file and only when choosing what I deliberately described as an ‘insanely’ steep filter was the ringing significant in the 44.1k version.
  15. Ah, sox -n output.wav synth 1 sin 0:24k gain -1 sinc -t 10 -12k That gives an official, Microsoft WAV file, but some programmes don’t like it, in which case, try: sox -n -t wavpcm output.wav synth 1 sin 0:24k gain -1 sinc -t 10 -12k The sweep freq is given as ‘0:24k’ i.e. 0Hz = DC to 24 kHz. The colon specifies linear sweep. In the manual, in the ‘synth’ section, there are listed the other available sweep types.
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