Why every devices modify audio signal ?
Why DOLBY destroy my song ?
Digital audio should be sent to other device exactly as it entered (direct out)

A shorth story made long ....

I am sick and tired of every device/software having audio parameters like Dolby, Equalizer, Surround Emulation all turned on by default.
See this example.
I made a song in Ableton.
( my speakers are "not bad" and my amplifier very good have a bass boost, that's all - i can live with that with some reference track ) - All Good Here -
I export to wav AND mp3 320kh (both sound almost identical) - All Good Here -
I upload to Soundcloud (the mp3 created with Ableton) here the sample rate goes down to 128 kh in streaming. - This is not supposed to be a big issue -

Here comes the pain. (took me a long time to figure out - since i don't listen to music on these devices ...
I take my phone to play the Soundcloud file, Bluetooth to my sound bar or Bluetooth to my TV .
It sound UGLY Big Time !!!
On my phone, i had to turn off the audio profile mainly DOLBY which solved most of the problem i had.
WHY is Dolby destroying my sound ?
WHY does my phone send audio data with sound modification (dolby) which are needed only on my phone
Still, on the Sound Bar i had to turn off Sourround Emulation.
On the TV audio lots of parameter to tweek in the same manner ... (i could have streamed to the tv playing trough the soundbar which would have made things ever worst)

ALL this time wasted trying to remaster my tracks thinking, "i mix and master like shit" because everytime i would listen on other devices at home, it sounded like shit ....

Why are all theses devices not communicate with direct out (unless i want it to ... )
Hopefully there's no audio parameters in Browsers.
Some apps/software do have audio parameter - what a pain.
LEAVE MY SOUND ALONE !!!!

So finally my question :
How can i prevent DOLBY destroying the sound quality of my song ????

 

Last edited: Mar 14, 2021

Some users listen to music from their smartphones. Some users hear through headphones. Some users hear through connected boxes. There are so many differences and possibilities today. Sound and price vary. Different manufacturers and different sound qualities. In addition, there are incorrect user settings. In short the chaos is perfect. How did musicians listen to your music in the past? What is the best way to listen to music? Look to: www.edifier.com

Spoiler: Why the sound of a smartphone is always bad

END TO THE CLARIFICATION
Why the sound of a smartphone is always bad
From TECHBOOK | March 29, 2019,

It is not unusual for music collections to lie dormant on smartphones and tablets. But the hi-fi feeling doesn't come close to playing through the built-in mini speakers. For good sound you should rather use headphones.

Smartphones have long since supplanted the MP3 player. Because you almost always have them with you and you can not only listen to offline music on them, but also stream any songs, music tracks or programs over the network. But is the sound also good on the mobile phone?
The demands on sound reproduction shouldn't be too high, says Daniel Beer from the Fraunhofer Institute for Digital Media Technology. "The audio quality does not yet come close to that of a simple hi-fi loudspeaker: The required frequency range is not covered, the low and high tones are missing." Typical smartphones cover the range from around 500 to 10,000 Hertz. A simple hi-fi speaker the size of a shelf box, on the other hand, has a playback range of around 80 to 20,000 Hertz. With current devices from Apple, for example, the frequency range cannot be traced at all. Neither on the website nor in the documents sent - in our case an iPhone XR - there is information on this.

Little space for good sound

According to Beer, the small installation space in smartphones is a problem. The maximum achievable volume of the cellphone loudspeakers is also insufficient and at the same time associated with inappropriately high distortion. This is noticeable in the form of a "blurred" sound. The reason for this is the small amount of air that a small membrane can move, explains the expert in loudspeaker technology and audio quality measurement. Another weak point in smartphone sound is the lack of resolution - both tonally and dynamically.
“Battery operation is a particular challenge for electronics,” says Beer. "Accordingly, the achievable preamplifier levels are generally lower and have less reserves for brief signal peaks than with hi-fi components." Cell phone amplifier stages are therefore often operated at the power limit. Protection mechanisms also often limit the maximum output level, which in turn leads to distortion.

Stereo yes - surround sound no

Nevertheless, the sound quality of the smartphone speakers has improved significantly in recent years, says the Fraunhofer expert. Almost all current smartphones are equipped with several loudspeakers for spatial representation, i.e. the mapping of a stereo or even surround scene. Compared to the previous monophonic reproduction, clear differences can be achieved in this way. “However, the small spatial separation of the loudspeakers in the smartphone sets clear limits,” explains Beer. “The typical stereo triangle of the loudspeaker placement of a hi-fi system cannot be reached and the original stereophonic space cannot be reproduced either.” And even if modern smartphones, such as the LG G8 ThinQ, use the display as an additional loudspeaker, the quality of the output is improved probably never come close to that of a real hi-fi system.

If you use headphones, depending on the mobile device, you can choose between the jack socket or USB and Lightning connections, which in principle usually deliver the better sound results. Because: "Both the internal digital-to-analog converter and the headphone amplifier of the smartphone are bypassed," explains Thomas Johannsen from the specialist magazine "Tablet und Smartphone". And these are unfortunately not of such good quality in most devices.

Usually sounded better via Lightning or USB

"Due to the low voltage of the batteries in smartphones and tablets, headphones should have a low impedance, preferably below 100 ohms," advises Martin Mertens from "Ear In" magazine. 36 ohms are common. One should also keep an eye on the efficiency. It should be 100 decibels, preferably more. In principle, according to Mertens, both in-ears and collapsible on-ear or large over-ear headphones are suitable for mobile devices.

Anyone who is on the road for a long time, travels a lot or generally has higher demands on sound quality can rely on an external headphone amplifier with a digital-to-analog converter (DAC). "It guarantees high sound quality and has its own battery, so that the battery of the smartphone is saved and you can listen to music for longer," explains Mertens.

If the music is played via Bluetooth speakers, you should pay attention to a reasonable sound-size ratio - this applies to both the volume of the speaker and the room in which the box is operated. In order to be able to achieve CD quality, smartphones and speakers must support the Apt-X codec. Of course, there are also Bluetooth headphones with Apt-X support. The playback For Thomas Johannsen, however, the easiest way to get high-resolution music from a mobile device is by cable. If the smartphone supports high-resolution sound (hi-res sound), suitable headphones with an AUX input are sufficient.

Source: https://www.techbook.de/mobile/smartphones/schluss-mit-dem-geplaerre-smartphone-klang-verbessern

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Spoiler: Dolby Atmos is everywhere, and that's not necessarily a good thing

Dolby Atmos is everywhere, and that's not necessarily a good thing

The brilliance of Dolby Atmos needs to be protected

You really can have too much of a good thing. We’ve been champions of Dolby Atmos since the very beginning, and we love this ultimate example of surround sound cinema heaven. But suddenly, Dolby Atmos is everywhere. And while we love to see the standard supported by more and more home cinema amplifiers and speaker packages, its appearance on cheap soundbars, TVs and even smartphones has us worried – that’s not the Atmos we know and love.

After all, how can these products possibly deliver the true three-dimensional sound Atmos promises? And, if people believe that’s what the next-gen sound format is all about, what chance do we have to convince them that they can do so, so much better? This is why seeing the Atmos badge on anything and everything is no good thing.

Dolby Atmos began in cinemas, with Dolby calling it "the most significant development in cinema audio since surround sound” – and we wouldn’t argue. It expanded upon what had become the standard 5.1 and 7.1 surround sound formats to add height channels. Using speakers placed along walls and, crucially, in the ceiling, you really did have audio channels firing at you from every direction.

There are an incredible 400 speakers in what was the UK’s first Dolby Atmos cinema, the Odeon in Leicester Square (pictured above), giving a staggeringly immersive sound experience. If you’ve heard it in action then there’s simply no arguing that this has taken cinema sound to a whole new, brilliant level. This is what Dolby Atmos is all about.

Of course, most of us probably aren’t in a position to build a 400-speaker cinema at home. Nevertheless, bringing Dolby Atmos to the home in some form or other made perfect sense. Having created this clever technology, which could expand home cinema sound into a new dimension, why wouldn’t we want this tech to trickle down to things we could use and actually afford? Bring it on.

Source: www.whathifi.com/features/dolby-atmos-is-everywhere-and-thats-not-necessarily-a-good-thing

Spoiler: Dolby Atmos on the phone: how does it work?

AUDIO GUIDE , ENTERTAINMENT

Dolby Atmos on the phone: how does it work?

Maybe you've heard of it, maybe you were surprised: Dolby Atmos works on cell phones too! The powerful 3D sound can actually be experienced on some smartphones. But how is that supposed to work when with Dolby Atmos each individual speaker is controlled with its own sound signal in order to create a realistic sound experience, but the number of speakers in a cell phone is usually very limited? We'll explain the technology behind it and tell you which current smartphones are Dolby Atmos-capable.
3D sound through headphones

If the sound for a film is in Dolby Atmos, then every single soundtrack is precisely defined and coordinated: The aircraft rushes over the heads of the audience, something explodes in the distance on the right and someone starts screaming right next to us. You can pinpoint all of these noises thanks to Dolby Atmos . This is what makes the sound so realistic: 3D sound.

In order for this to work, each channel usually has its own loudspeaker, which is controlled separately. The overall result is a great soundscape. But if only two channels are available, as is the case with headphones, for example, you have to be a little tricky.
The key to 3D sound through stereo speakers is HRTF, or Head-Related Transfer Function . This describes that we perceive and interpret sounds depending on the direction from which they reach us. And Dolby has now virtually imitated this effect and plays on the two speakers in headphones accordingly. Up to 128 individual audio objects - the loud airplane, the crashing bomb as well as a screaming person, for example - can be defined in this way, together with the precise details of where this noise has its source in the room. From this, the Dolby Atmos processor in the smartphone calculates exactly how the sound should sound in the left and right ears so that it is as realistic as possible and like in a large oneSound in cinema hall with Dolby Atmos system .

Source: https://blog.teufel.de/dolby-atmos-auf-dem-handy-wie-geht-das/

 

Last edited: May 5, 2021