Why do retroflex and postalveolar fricatives sound so similar despite the quite different positions of the…

If they sound so similar, does it mean that they have a larger chance to be free variants of a phoneme and even become the other in a sound change. Do they play different or similar role in sound changes?

Why do old russian guitar songs sound out of tune?

I’m not actually 100% sure these are out of tune, but they sound out of tune to me. Here are some examples on YouTube:

  • Example 1 (1943)
  • Example 2 New example 2 (1970)
  • Example 3

It’s a bit harder to tell in the third example, because it might be that the weird chords contribute to this effect. But the first example seems pretty clear. One thing all such recordings share is that they’re all very old, so could it be an artifact of old recording technology?

Most of all, are these guitars actually out of tune, or do they just sound different?

Ubuntu 18.04 and 16.04 sound problem

I had initially dual booted Ubuntu 16.04 with kali linux.Then One day while watching a movie in ubuntu 16.4 the speakers went mute. However, when using kali linux speakers worked just fine. I searched online for ways to fix sound in ubuntu 16.04 and the only helpful fix was to run alsctl restore everytime I logged in ubuntu 16.04 . This always got the sound working. I then decided to replace kali linux with Ubuntu 18.04 and sound was gone too. I have to run alsactl restore everytime I log in Ubuntu 18.0 to get the speakers to work too.
Here is the output of alsactl restore
Output

alsactl: state_lock:125: file /var/lib/alsa/asound.state lock error: File exists
alsactl: load_state:1683: Cannot open /var/lib/alsa/asound.state for reading: File exists
Found hardware: "HDA-Intel" "IDT 92HD81B1X5" "HDA:111d7605,103c166f,00100105 HDA:80862805,80860101,00100000" "0x103c" "0x166f"
Hardware is initialized using a generic method

How can I get my speakers working automatically when I log in ?

Choppy sound on MPD + Airplay, working pulseaudio

My current setup is mpd server on a RPi connected via pulseaudio to an airport express sink which in turn is connected to my receiver/amp as described in Redirect audio to another AirPlay device

In this setup I get choppy sound coming from the receiver. However, I have troubleshooted the problem to mpd because of the following:

1) It is not a pulseaudio + raop since running ffmpeg -i my-audio-file.mp3 -f pulse "my-sink.local" does play well through the receiver via airplay.

2) It is not an issue of connectivity of mpd since connecting to mpd either with mpc locally or a client from a different computer plays well when mpd is configured to use the alsa sink and a headset on the RPi.

I suppose it is some form of buffering on mpd that is conflicting with airplay/raop but I do not know where to look, any help will be appreciated.

How do I change the default sound for Reminders in El Capitan?

It is very important as I use it for medication reminders. I would like to use one of the sounds (.aif) that I already have stored on my computer. Changing default sounds in Calendar would be helpful to know as well.

I’ve followed the steps at cultofmac previously, but tried again. My ~/Library/Sounds folder is empty. I added a newly created aiff and named that sound of my choice as basso.aiff and placed it in the empty folder. Followed the terminal instructions. But, I get no alert sound at all from Reminders.

Strangely, alert sounds (ie notification of deleting a song from iTunes, as well as certain alerts in other apps use that aiff too.) I could careless about what sound I hear in any app other than Reminders. Suggestions?

What’s this flowing river sound from under my back seat?

I turned the engine on. Then heard a flowing river under the back seats, towards the middle. It sounds like when you are pouring water out of a bottle, or when a small stream is moving through rocks. I turned the engine off and the sound went off ten seconds after. Thought it could be the coolant, but can’t figure out why does it sound from under the back seat

Crackling sound and noise when using line in

I’m receiving sound using the motherboard’s “line in” input and I get a lot of “static” and weird noises.

The funny thing is that, when I try to record using arecord test so I can listen to the playback and check if the noises are there, the noise disappears and sound becomes pure…just by executing arecord test.

Any ideas on how to fix this? It’s def a software thing. I listened to the audio coming in and it’s pure.

flowing river sound under the back seat

I turned the engine on. Then heard a flowing river under the back seats, towards the middle. It sounds like when you are pouring water out of a bottle, or when a small stream is moving through rocks. I turned the engine off and the sound went off ten seconds after. Thought it could be the coolant, but can’t figure out why does it sound from under the back seat

Question: Continuous and constant pulsing humming sound coming from computer?

My coworkers computer has a continuous constant pulsing hum to it. About 1 second intervals. Sounds almost exactly like a phone vibration going off. We can’t figure it out. It’s not the CD drive or coming from the speakers. It’s a constant and equal pulse that does not change in speed or sound when starting other applications or doing tasks. Only when the computer is turned on. Any ideas on what this could be?