Audio passthrough (DTS, Dolby Digital) - Huawei Mate 20 Pro Questions & Answers

Hi,
I was wondering if anyone has managed to get Audio Passthrough working. So if you've got a movie file which has DTS or Dolby Digital sound, and you connect your phone with a HDMI dongle to your Audio receiver which can process DTS or Dolby Digital, to actually get surround sound out of it.
I've tried VLC and MX player, none worked. If I connect the exact same equipment to my laptop, it does work. So it must be either the video apps or the phone. I've tried multiple settings in the apps (of course I've enabled audio passthrough), didn't change anything.
Any help on this?
Thanks!

Spir4 said:
Hi,
I was wondering if anyone has managed to get Audio Passthrough working. So if you've got a movie file which has DTS or Dolby Digital sound, and you connect your phone with a HDMI dongle to your Audio receiver which can process DTS or Dolby Digital, to actually get surround sound out of it.
I've tried VLC and MX player, none worked. If I connect the exact same equipment to my laptop, it does work. So it must be either the video apps or the phone. I've tried multiple settings in the apps (of course I've enabled audio passthrough), didn't change anything.
Any help on this?
Thanks!
Click to expand...
Click to collapse
Hello, i do it with a Encore mDSD USB DAC and some specific software of the play store; i extract DTS files, and read with sony music software, listening on a WH-1000XM2 Sony

Pascal536 said:
Hello, i do it with a Encore mDSD USB DAC and some specific software of the play store; i extract DTS files, and read with sony music software, listening on a WH-1000XM2 Sony
Click to expand...
Click to collapse
Alright but that's no surround sound. You're using a DAC which outputs stereo sound to a 3.5mm jack and a stereo headphones ...

I asking same question, do you find the solution now? I want to use smartphone to do audio passthrough to amplifier

Charley L said:
I asking same question, do you find the solution now? I want to use smartphone to do audio passthrough to amplifier
Click to expand...
Click to collapse
Nope never found a proper working solution, I just gave up

Related

any developers here? car audio request internal decoder for flac

i ve been searching everywhere and everything trying to get to play my flac collection in the car.
currently the car stereo manufacturers are beeing retarded and not developing any flac support( or at least not saying anything about it)
i checked rockbox, some off brand car stereos, even considered car PC)
but none of those options except car pc (EXPENSIVE) give me a digital signal option.
i know i can use it through AUX
and I KNOW ABOUT IPOD ALAC!!!! DAMN HOPE IT BURNS IN FLAMES !!!
everybody keeps suggesting it like its a piece of cake to convert a 200-300gb of CDs backed up in flac format.
so i come here to see if its possible to create an interface for the android phone so when plugged into a USB in car stereo it will act similar to ipod.
but so it would convert and send out a PCM WAV or other uncompressed format instead of flac or MP3
knobody kno?
fuzzysig said:
knobody kno?
Click to expand...
Click to collapse
When you plug into a car's USB jack, all control is transfered to the car's system. The android just acts like a USB flash drive at that point. There's nothing you can do to the android to override this behavior. You'd have to hack the car's systems to do what you want. I've got the same problem. My car only supports mp3, wma and wav from the USB jack. It has an ipod jack too, but I've never owned one so I don't know what that may or may not do. I just use wav audio on a portable USB drive in my car to get lossless music. A year or two later model of my car has A2DP bluetooth, but I'll have to wait awhile before I can upgrade my car.
My friend tried his Iphone 4G in my car (pioneer DEH-P5100UB) by usb, he played spotify so not a file that actually was on his phone.
so if that works there must be some streaming from his phone to my receiver, so streaming from an android phone should work aswell...
sry for digging up an old thread but this might be the way to a nice solution to this problem.
androidphone with flac files --> flacplayer in phone --> send pcm(or whatever it is the iphone is doing) to the car stereo via usb
any thoughts?
Or Bluetooth?
daedric said:
Or Bluetooth?
Click to expand...
Click to collapse
my receiver don't have bluetooth.
i am still interested in the usb audio idea, if it is a digital connection that the car receiver plays or if the phone does the DAC job?
theres no direct interface for anything besides iphone.
i would be nice to plug in any flac capable phone and have control over it through your stereo but use the phone as a decoder and send WAV file to the stereo.
but i have no fn idea why car audio companies would not do it.
i mean its a damn usb interface, its already universal. and doesnt take much effort to get together and create a universal control interface so we can use something besides the damn iphone in the car. that sht is getting old.
thers one i phone
but theres hundreds of other phones and they all share 3 things in common:
android OS
USB
and fast processor that can handle decoding of flac files or any other media files.
yet theres not even a hint of support for these devices for some unknown reason.
Google music and power amp can play flac. I have flac in my phone too.
Accidentally sent from my Google Nexus S using XDA Premium
this is like beating a dead horse.
lol i dont care about AUX everyone has figured that out by now that you can hook up yor phone through aux
or use it as a media storage...

Downmix to mono audio (for headphones) possible?

I have an .avi file with a 5.1 audio stream, but the stream is messed up - most of the sound is coming out of the FR channel, because it was improperly encoded from a mono or stereo source. I can watch the video ok on a pc if I use gomplayer and set up AC3 decoder to downmix to mono - the audio from all channels is mixed and played through L and R channels of headphones.
The Question is:
Does android have an app or a plugin to downmix to mono audio, for Nexus 7?
I know Voodoo control panel can do this, but it doesn't work with N7.
I also tried a number of players -
mx player, mobo player pro, moboplayer, dice player, vplayer, rock player lite, bs player. There may have been a few more I don't recall at the moment.
None of these players have the option to downmix to mono.
Can anyone help please?
Thanks.
Forgive me, I'd like to bump the thread to see if anyone knows of a more elegant solution.
Try DSP Manager's Headset Virtual Room Effect and select a room type that sounds best for you. I am deaf in my left ear so I needed all my audio downmixed to mono and this did the trick.
edditnyc said:
Try DSP Manager's Headset Virtual Room Effect and select a room type that sounds best for you. I am deaf in my left ear so I needed all my audio downmixed to mono and this did the trick.
Click to expand...
Click to collapse
How does choosing one of the Virtual Room Effect options downmix the sound to monaural? And which option does downmix to mono?
*bump*
I too would love mono mix sound!
Stereo-to-mono effect on Windows PC and Android
First of all, a free audio-player app called AIMP on Google Play, Android, has a Settings -> Sound -> Output -> "Mix to mono" setting, which will be useful for this need.
Secondly, while I don't know which Android app he's talking about, edditnyc is most probably right, because on a Windows PC, and depending on the sound card, you can right-click the speaker icon in the system tray (bottom right corner), click Playback devices, right-click Speakers, click Properties, click the Enhancements tab (if it doesn't exist then perhaps the sound card doesn't support the feature or the latest drivers for the sound card aren't installed), scroll down and tick Headphone Virtualization. And while this does not downmix stereo or others channels to mono, it does something that emulates this effect of mixing stereo to mono on the PC; it allows you to hear sounds that are originally only playing on the left speaker, for example, on the right speaker. And to the best of my knowledge, this should work with all sound that plays from any program on the computer, including audio players, video players, and games.
Hope this helps those who need this for technical issues or for unilateral hearing loss, at least until Microsoft and Google start to recognize this need in their accessibility settings.

Can I get sound from my phone while on MHL or Miracast?

Hello,
is there a chance to get sound out of my phones headphone jack while it is in MHL or Miracast mode. The sound really doesn't need to go to the projector on the other end of the room.
Root and xposed are available if needed for this.
Maybe there is a media player that has a setting for it?
Any ideas?

List of music players outputting to akm dac

Hello,
An update of the music player i am using (AIMP for android, free) just release an update (v 2.60) with the ability to choose between opensl and audiotrack for the sound engine. In audiotrack, i'm pretty sure it is driving the akm dac 4490 inside my axon 7 (mine 2017G B06) : when i switch between super and normal in audio settings there's a blank and i hear clearly the difference.
I ve search for other players that can drive the axon 7 dac and i found :
- stock player
- neutron
- google play music
is it right ?
Have a good day.
nevro
Hi, neutron player false positive I think.
Switching super HiFi and changing sound in player does not mean that it fully utilitize akm DAC. You will get better Sound on YouTube on any stream.
I will check aimp new features, thank you for the tip.
Try n7 player is my suggestion.
Use this if your bootloader is unlocked and the whole system can use the AKM DAC. Works on system or Magisk. https://forum.xda-developers.com/apps/magisk/module-universal-deepbuffer-remover-t3577067/page11
Sent from my ZTE Axon 7 using XDA Labs
Infy_AsiX said:
Use this if your bootloader is unlocked and the whole system can use the AKM DAC. Works on system or Magisk. https://forum.xda-developers.com/apps/magisk/module-universal-deepbuffer-remover-t3577067/page11
Sent from my ZTE Axon 7 using XDA Labs
Click to expand...
Click to collapse
Excuse me, but can you explain why this enables the akm dac on any music player?
I don't quite understand.
Can you post a screenshot showing it works with your preferred player for example?
nfsmw_gr said:
Excuse me, but can you explain why this enables the akm dac on any music player?
I don't quite understand.
Can you post a screenshot showing it works with your preferred player for example?
Click to expand...
Click to collapse
I've been using it on custom ROMs and my assumption is that it basically wires everything to the AKM DAC. That's because a) even in Youtube, Netflix and games the sound was clearly from the AKM DAC, and b) I'm on stock, was using Youtube without the patch and eventually felt so let down by the crappy shoebox sound that I downloaded it and flashed it.
Try it for yourself: download the flashable zip, put some music on YouTube (on stock it can't use the AKM DAC even by toggling the switch, that's why you should use youtube), then flash the zip and try again after it boots. There's no way around it, it's not placebo. It might sound worse for you if you have different cans or you want a different sound though
nfsmw_gr said:
Excuse me, but can you explain why this enables the akm dac on any music player?
I don't quite understand.
Can you post a screenshot showing it works with your preferred player for example?
Click to expand...
Click to collapse
It allows the system sound effects like equaliser to affect all audio like how it was in KitKat. It's an option in ARISE and maybe default in Ainur (I forget, needs testing). This is just the function alone, it works well with the mod author's other audio FX installs.
I love Viper for tuning headphones for their individual Frequency Response with it's excellent graphic equaliser in V4A 2.3.4.0. Lowering output gain with it's advanced options seems to help lower Google Play Music so I can hear my game sounds higher, need to test this more to confirm. I find combining it's Speaker Optimisation with Dolby's surround with flat EQ produces the best speaker audio. Having tried most audio mods and effects on my old Z3C, keeping things simple with just these produces the best results. I'm yet to test a couple of mods that were incompatible with the Z3C and retest others on the Ax7. But as an audio purist and from experience, I don't believe any audio effects will improve audio rather than just modify the sound, unless they prove to retune the chip processing at a low level.
As Username suggested, have something like YouTube playing in the background and toggle the Hi-Fi to confirm a difference. It can be uninstalled by reflashing for system-based, or respectively via Magisk Manager, but TWRP backup in case. Audio isn't really something you can screenshot haha, it has to be on your device locally to be heard. This mod should be common knowledge by now for getting the most and expected out of an audio beast such as the Axon7 on stock.
Sent from my Xperia Z3C using XDA Labs
Thanks guys.
And what about PowerAmp on a stock rom?
Still seems troublesome on 704 alpha. Mine seemed ok but then started getting a fail error for hi res.
I just use Jet Audio as my default player with 32 bit enabled and AM3D plugin used. Sounds great.
By the way I discovered a conflict scenario when using the deep_buffer remover to allow the AKM DAC globally.
Whenever a non equaliser effect supported app (not GPlay Music or Neutron) plays any audio simultaneously over the top of another app's audio playing. The hi-fi toggle will no longer switch until audio is paused. This isn't typically a problem as Super mode is preferred and will continue to function when on headphones.
However it means if an audio track is playing on speakers and any non EQ supported app plays any audio causing the conflict, then plugging in headphones they'll be stuck on the Snapdragon DAC. The reason being that speakers use the Snapd DAC and plugging in without audio stopped continues the locked conflict where hi-fi won't switch to the set preference.
A simple workaround is to just pause/stop all audio and the hi-fi preference precedence will automatically function on resume. This can be done before or after plugging, it doesn't matter. To confirm this the hi-fi switch will then function immediately when changed.
This took me several reboots and testing various audio to pin the cause. The easiest way to tell the difference between the DACs is to turn up volume to a level that feels comfortably loud on Super, then whenever the SnapD DAC is in use instead the volume is noticeably not loud.
I haven't tested if a notification or ringer sound will cause the same conflict issue. Safer to just pause/stop all audio when starting headphone use in case of any previous audio having already caused the conflict.
Sent from my ZTE Axon 7 using XDA Labs

Record stereo audio from external mic

I wanted to know if when you attach a stereo external mic to the s9+, does the phone record the audio in stereo, or mono? I've heard that the s9+ cannot actually record stereo audio from an external source, only mono, but it does record stereo audio from the built in mics.
Thanks for any help.
1hdr4u.
1hdr4u said:
I wanted to know if when you attach a stereo external mic to the s9+, does the phone record the audio in stereo, or mono? I've heard that the s9+ cannot actually record stereo audio from an external source, only mono, but it does record stereo audio from the built in mics.
Thanks for any help.
1hdr4u.
Click to expand...
Click to collapse
sorry I don't have an answer to your question. but I do have a question to you. if you record a video with a loud music does the video sound gets lowered or sort of compressed?
Record stereo audio from an external mic
As far as I know, the s9+ has automatic level control so loud audio would be lowered and compressed.
It will record in mono, as the connector is only a TRRS 4-way connection. Left+Common+Right++Mic. There is not a physical connection for two channels of mic input. You would need to use a OTG USB audio adapter with two channels of audio input.
Record stereo audio from an external mic
Thanks.
I am unable to make a USB microphone work with the S9+via OTG, and have not been able ot find out why. One person suggested that Samsung "locks down" their USB drivers to prevent call recording, but I have not been able to verify. In any case a HUGE dissapointment.
Trent54 said:
I am unable to make a USB microphone work with the S9+via OTG, and have not been able ot find out why. One person suggested that Samsung "locks down" their USB drivers to prevent call recording, but I have not been able to verify. In any case a HUGE dissapointment.
Click to expand...
Click to collapse
Thanks guys for the inputs will try to test it at best buy today.
Record stereo audio from an external mic
That's disappointing. I guess if I want stereo audio for my videos I'll just have to keep using my dslr camera with my stereo mic attached. Thanks for your reply.

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