Develop Bugs

[Q] Tough question: sound types

Here's a tough question - not necessarily difficult to answer, but difficult to ask correctly.
Is there any possibility to change the "sound type" of a particular program without actually having access to the program source code (e.g. via an external application/setting)?
By "sound type" I mean the value which is shown when you use the side volume keys while the program is running. E.g. when playing music and you use the vol+/-, it will display "Media volume", when in the Home screen and you use the vol+/- it will say "Ringer volume" etc.
I'm using the Desire as my main in-car device. The sound goes over Bluetooth to a Motorola T505 handsfree/FM transmitter and from that one to the car radio via FM (yes, old car radio, no built-in Bluetooth).
The reason for which I need to change the sound type is because if they sound types are different, they can be adjusted independently - i.e. music volume to 50% and ringer volume to 30%, so that I don't get a heart attack when the phone rings.
The problem is that my navigation software (iGo Amigo) and HTC Media player both seem to use the "Media volume" designation for their sound output, so I cannot adjust them separately. This results either in listening to a very loud navigation or to low volume music. Other navigation software have their sound type as "Alert volume", so they can be set separately.
Any idea how/if this can be changed somehow? The Desire is completely stock, unbranded, running 2.2 and the latest OTA updates.
Thanks!
LE: in more elevated terms, this is the thing (well, the other way around) - http://stackoverflow.com/questions/2744752/enable-media-volume-slider-in-android-application

airwave88 said:
Here's a tough question - not necessarily difficult to answer, but difficult to ask correctly.
Is there any possibility to change the "sound type" of a particular program without actually having access to the program source code (e.g. via an external application/setting)?
By "sound type" I mean the value which is shown when you use the side volume keys while the program is running. E.g. when playing music and you use the vol+/-, it will display "Media volume", when in the Home screen and you use the vol+/- it will say "Ringer volume" etc.
I'm using the Desire as my main in-car device. The sound goes over Bluetooth to a Motorola T505 handsfree/FM transmitter and from that one to the car radio via FM (yes, old car radio, no built-in Bluetooth).
The reason for which I need to change the sound type is because if they sound types are different, they can be adjusted independently - i.e. music volume to 50% and ringer volume to 30%, so that I don't get a heart attack when the phone rings.
The problem is that my navigation software (iGo Amigo) and HTC Media player both seem to use the "Media volume" designation for their sound output, so I cannot adjust them separately. This results either in listening to a very loud navigation or to low volume music. Other navigation software have their sound type as "Alert volume", so they can be set separately.
Any idea how/if this can be changed somehow? The Desire is completely stock, unbranded, running 2.2 and the latest OTA updates.
Thanks!
LE: in more elevated terms, this is the thing (well, the other way around) - http://stackoverflow.com/questions/2744752/enable-media-volume-slider-in-android-application
Click to expand...
Click to collapse
does igo not have an internal volume adjustment? i know copoilot does, so i can set my media volume to full and then adjust the actual volume level off the app independently

None that I could find, it seems to be stuck with some default values (iGo MyWay 2009).
Wondering if in Android there's an iGo configuration file similar to sys.txt on WinMo... might be able to set it there.

[Q] g2 compatible car stereos?

does anyone know of any models of car stereo that you can hook a g2 into and control the g2's music player (or that has a corresponding separate music playing app that is controllable at least). i'd like to be able to hook up my phone by usb and then use the deck controls (or even better the controls on my wheel) to skip forward / back / pause, etc.
i've been searching and everything says "ipod/iphone" compatible and nothing mentions android. at best they say that the music will play thru via usb, but not whether or not you'll actually be able to control the music too.
thanks for the info
Dave

The Desire Z works with all (the) cars (I have tried) that have Bluetooth. You have to switch to BT Audio not just BT Phone, but then the controls work just fine.

Pretty much ANY USB automotive HU will work fine. It does NOT play music through the USB as fruitjunk does though... you plug the phone in, enable MASS STORAGE MODE, and use the HU to browse/select/play the mp3 file. The audio decoding happens in the HU, not the phone. No need to do things the iDiot way.
Alternatively, you need a BT HU that supports AVRCP, then you can use the HU to control the phone's media application.

thanks
hey thanks to both of you. great info. just out of curiosity, do you guys actually use these features? and what head unit are you using?
thanks

I use a Sony bt3600u stereo that works fine with BT. Allows pausing/Playing, Skipping forwards & backwards of tracks on the stock music app.
Doesn't display track names etc (Just says 'BT Audio') but that doesn't bother me.
This is my stereo: Link
Hope that helps

A way to separate in-call and music audio to different cables?

The problem is:
I need to have separate leads for in-call conversations (mono+mic) and general audio, like music player (stereo). Meaning that audio normally goes via one cable, but when the call is placed it's automatically diverted to a different cable. It might be possible to make an external active switch-box if only there was a way to tell that a call has been placed.
I can only think of adding a bluetooth handsfree, which would only work for phonecalls, while keeping the stereo plug connected for music. But is there any way to do it with just an audio port? Is there any communication going on via the audio port at all for some advanced accessories?
The phone is in question is HTC Android, with 4-pin audio plug.

Audio Equalizer - Phase - Time Alignment

Hi
I'm usally listen to music linking my Samsung S4 to car stereo by bluetooth or wire. My car stereo has not a great equalizer, so I prefear to set equalizer directly from my audio player (poweramp).
I'd like to know if exist any apps, plugin or media player who allows to set "Time Alignment" parameter. May be some equalizer could name it "Phase".
This parameter make a little delay in left/right speaker for getting the best listening in relations to your position inside cockpit.
How could I get this kind of function?

HIFI DAC Help( Audio Experts needed! )

Hi guys. I downloaded an app called Android hidden settings from the play store. I already use settings database editor as well as the hidden settings magisk module, but I saw if one thing inside this app I haven't seen anywhere else. There is a setting called Hi Fi DAC pop up. When you click on it floating window opens and it gives you the option to turn on DTS x and the hi-fi quad DAC. you can toggle the switch is regardless of whether or not you're playing music so I figured this wouldn't do anything. This is what I noticed:
When the floating window first appears, DTS is already enabled, I disabled it and toggled the DAC switch to the on position and proceeded to open my music player. From here I opened the full settings menu and clicked on the sound effects section to check if the DAC was switched on in the phones full menu and the toggle is actually still set to the on position. Figuring there would be no change in sound, I messed with the left and right channels anyway as well as the sound preset and digital filter. Before I go further I forgot to mention that I do not have headphones plugged in, I am playing music directly through the phone speaker. To my surprise, the audio quality does change and the volume is limited to 75 as if a headset was plugged in.
I opened up the Flinger Dump app to check audio output details but it is very limited to what it shows. I'm wondering if anyone with more knowledge on the topic and the proper tools could do some further testing and see what changes actually occur. I use UAPP, and its output is showing differently then flinger dump is. Could be a complete waste of time, could lead to something further...

If I have not misunderstood, what you mean is that with that app, you inadvertently activated the dac or the dts for the speaker's sound channel, right? If so, it would be amazing to be able to modify how the dac behaves without headphones. Perhaps it could be activated for the speaker, perhaps not, but what you propose is very interesting.

I'm honestly not sure. I don't believe so, but it's definitely done something and I don't have the knowledge or the software to see exactly what has changed. Basically, unless you have headphones or an auxiliary cord plugged into the phones Jack, you can't toggle the Hi-Fi DAC button to the on position as I'm sure you're fully aware of. This hidden shortcut allows it to be toggled on without anything plugged in to the headphone jack. I played some tracks thinking that there is a 99.9% chance that the audio quality wouldn't change ( or the sound wouldn't change, I don't know about quality ) but to my surprise it did change the sound. As long as the DTS:X is turned off, all of the other options had some sort of effect on the audio. The sound preset, the digital filter and the left and right channel knobs all had some sort of effect on any audio I played through the phone's internal speaker, and the volume limit changed from 100 down to 75, exactly how it would behave if headphones were plugged in.
I just need someone to help figure out exactly what this is changing, because my music app is showing 16bit and various Khz from the 300 range to over 1000...and as you can see from the screenshot the FlingerDump app is showing 24bit to 32bit and depending on the track but the KHZ remains the same.
It may be a dead end, but I figured that since there is an actual change in sound.... there may be a possibility for someone with more knowledge than me to take this and run with it and see where it leads. I removed all of my audio mods except for JamesDSP and John Fawkes DTS tuning because every other mod made my phone upsample everything from 44.1 to 48 and it was pissing me off. The results above were with USB Audio Player Pro, but I disabled bit perfect mode when I tested this out in order to avoid interference with the results.

I'm on stock android q (through fota) and out of curiosity i tried that. Nothing happened. I can tap it and nothing. The same with dts settings. Turning quad dac to small speaker for me have no sense. Idk how circuits looks, but i think system itself don't let reroute signal through dac to speaker. BUT if ypu want to check then try that.
Open terminal app and type
su -c tinymix
And look for what is on screen.
If it's state is closed then quad dac is not working. If state is hifi, then it's working.