Android :: Does Car Audio System Have USB?
Oct 24, 2008
So i realized today on my way home from work that my cars Clarion CD deck has a USB connector for hooking up thumb drives to play music off of them. I figured this HAS to work with the G1 and it does!I was able to hook the G1 charge and play the music off the SD card through the G1 with ease.Just set the G1 to act as a usb drive, and you can play music and charge your phone via USB while driving.So keep that in mind if you're going to be getting a new car CD player, get one with USB (pretty common on new CD players) and you'll be glad you did.
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Feb 9, 2009
Is it possible to write data or create folder in system directory like /system/media/audio/alarms. i.e other than our respective package.
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May 5, 2010
I connected my phone via USB to my RR sport to upload audio files to the RR hard drive. However, I keep getting connection error. Apparently my device is not being recognized as a storage. I did the unmount thinking. Also, I am wondering how I can play audio from my phone through the RR audio system.
RR is 2010.
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Sep 27, 2010
Is there a way to filter audio in android system? I am interested to get only the audio of a fixed frequency.
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Nov 9, 2009
Im trying to record audio directly from the system. Using the standard API, you can only record from the MIC or phonecalls, ala: MediaRecorder.Some ways I've tried is to read from /dev/audio and /dev/eac from my app, but I think the sandbox of the app is preventing this.Im thinking about using the NDK, but Im not sure if that would overcome the sandbox aspect ? Ideally, there is some solution outthere to access the audio sub- system directly. Whether it be directly to alsa, to the AudioFlinger, to /dev/eac
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Jan 2, 2010
Are there any audio fingerprinting systems (PUID, etc) that are implemented in pure Java (for running on Android)?
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Jul 16, 2010
Mainly for the people who do not have an input option for an audio source in their car...
What do you guys use to integrate the Evo to your audio system in your car? I've used an FM transmitter before.
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Dec 2, 2013
I've to develop a software which can copy all audio and Video files from Android device to System
What to cover first, either linux kernel or android system interface.
Do I need to learn linux kernel programming or android system interface only
This backup could be possible from one of the medium via USB cable or WiFi or other form of connectivity.
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Nov 18, 2010
I am looking to connect my EVO to my car's audio system so that I can listen to Pandora and my own mp3s through my car's speakers.
The audio system is a JVC KD-G200 -- below, I've included pictures of the Line Out area behind the unit:
http://dl.dropbox.com/u/1053769/IMAG0150.jpg
http://dl.dropbox.com/u/1053769/IMAG0151.jpg
http://dl.dropbox.com/u/1053769/IMAG0152.jpg
http://dl.dropbox.com/u/1053769/IMAG0153.jpg
If you could please tell me how I can connect these two.
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Nov 16, 2009
we all know there are problems with stuttering and skipping in Pandora. Here's some proof of what's going on when it happens. I hooked up my phone and grabbed the system log as I started Pandora and easily got it to stutter and skip. I added notes as to what what happening at each step.Perhaps this log will raise some awareness of the problem and if we're lucky all this will make it back to Sprint and Samsung and get fixed soon.
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Aug 24, 2012
My MID mini-tablet (Android OS 4.0.3) has a mini-HDMI port. I have the mini-HDMI to female HDMI adapter and HDMI cable. Can I output music from the supplied music app to an audio system using HDMI? (Using the headphone jack is not practical due to the low volume output by the device.)
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May 23, 2010
Does anyone know if there is a way for either meridian or the regular android player to recognize audio tags on lossless audio files?
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Sep 22, 2010
Is there an Android equivalent to the iOS Core Audio / Audio File Stream Services? I need to be able to read audio bytes from a network and feed them to the audio system under my control, so I can do my own timeouts / reconnects / range requests / etc. without interrupting the audio playback (since the system audio thread would be playing audio already enqueued). It seems that MediaPlayer doesn't give me this level of control. Is there a lower-level framework that does, either in the SDK or NDK?
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Oct 2, 2010
I want combine two audio files. (A audio file + B audio file = AB audio file)So, my search result is:
1. useing an AudioTrack.
2. decode PCM from audio file.
3. combine PCM.
This is currect? It there another way?
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Oct 17, 2010
I want to record a sample from the microphone, then I want to play the recorded file maximizing the volume and apply some audio effect, like modifing sample rate or addind an echo.Waht is the best way? is there an example?
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Jun 2, 2009
Could you please let me know how to do the audio record in android emulator and play the same recorded audio. Could you please help me in proceeding in development.I tried with MediaPlayer API's also.Its not working.
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May 8, 2010
Is there a way to determine the audio format of an audio file in Android? On normal java I do it like this:
File file= new File(...);
AudioInputStream stream = AudioSystem.getAudioInputStream(file);
AudioFormat format= stream.getFormat();
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Nov 17, 2010
I am an Android app developer, and I have purchased a Nexus One device which I use to continuously test my developed Android applications.
Background: ----------------- One of the applications I developed uses a native shared library (e.g. myNativeLib.so). Only my application loads & uses this native library. I had developed this app before Android NDK came out. I pack my native library into my apk's 'assets' folder, and during my application start- up, I extract this native library from my package's assets folder to my app private directory (i.e. <assets> -> /data/data/<myappprocess>/ myNativeLib.so). Then I use System.load() API in my application to dynamically load this native library.
Problem: ------------ This application was developed during Android 1.5 (i.e. cupcake) days {I didn't have the Nexus One then}. The above procedure has been working without any problems right from Android 1.5 to Android 2.2 (i.e. Froyo). I have also tested the same on my Nexus One for Android 2.1 (i.e. Eclair) and Android 2.2.
The problem began the moment I recently upgraded my Nexus One to Android 2.2.1 via the FRG83 system update. Now, whenever I try to load my native library, I get the following error:
D/dalvikvm( 3653): Trying to load lib /data/data/<myappprocess>/ <mynativelib>.so <some address> I/dalvikvm( 3653): Unable to dlopen(/data/data/<myappprocess>/ <mynativelib>.so): Cannot load library: link_image[1995]: failed to link <mynativelib>.so
What I have Tried: -------------------------- 1. I tried my application using Android 2.2 SDK (emulator)...it works, no issues. 2. I checked out the latest froyo & android2.2.1 source code from Android open-source, built & tested my application + native lib using the latest froyo source...it built & ran, no issues. This should've taken care of any changes in the native code dependencies between Android 2.2 & Android 2.2.1 3. I even checked Android 2.2.1 source code for dalvik (java System & Runtime classes) + bionic (linker & dlopen sources) between Android 2.2 & Android 2.2.1 (using source checked out from Android open-source), but couldn't find anything consequential 4. I am unable to return my Nexus One to Android 2.2.
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Nov 12, 2010
I am working on a application that would allow users to play remote files. My question is how do I open those remote files to be played in the default android player?but this does not give me control of what is happening!
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Jun 28, 2010
I have a 720p video that I am trying to play on GS. The image is amazing by the way. But I can't hear any audio (works fine on my PC). Anything wrong with the audio codec used?
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Sep 4, 2010
Phone: UK Galaxy S Issue: Recovery boot error message in red writing
Multicsc : can not access to / system/csc/VOD/system/
Background: I have been trying to root my phone from information found in a youtube video. All went well and the little ninja bloke with the sniper rifle was in the app list. Tried installing busybox and was told that the phone was not rooted�..
I think I ran the root application again and at some point I started getting this error message when in recovery. I have since run the one click root method to unroot the phone and the little nija dude is no longer there. Since I rooted the phone it will no longer connect to my wireless network, it finds the network and attempts to obtain an ip address. After a few min it times out and tries again. When I load the phone recovery the error message is still present.
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Jun 23, 2010
Can we modify the system while the phone is booted now that we have the unrevoked recovery flash tool? is this what NAND unlock means?
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Jul 11, 2012
What will the cwm backup?
if I backup a system with locked bootloader,will the bootloader relock after I restore the system from an unlocked bootloader system?
Which content will cwm backup?(include kernel?)
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Dec 9, 2009
I am streaming an MP3 audio and instead making this MP3 audio to play, I want it to be converted to PCM format and pass this PCM audio to AudioTrack(as it takes PCM data as input.) instead of passing my MP3 stream to MediaPlayer. Can anyone please help me to convert the MP3 to PCM stream?
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Sep 23, 2009
I use Java API "System.setProperty()" to set a system property. After invoke "System.setProperty()", API "System.getProperty()" can return the value just I set. However, when I use command "adb shell getprop" to verify, it shows that this property is not set at all. Do I wrongly understand API "System.setProperty()" ?
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Oct 12, 2010
I'm engineer but more from a chip/assembler x86 level. I'm new to Android. Still figuring some general things out. I have written some apps, but have a general question. If I were to write an improved version of - let's say - TextView. Is it possible to make all app's on the system using this class, basically replace TextView? How are the java classes on the Android system, are they compiled, can I replace the library? Is this protected?
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Jan 17, 2010
I have searched the whole group but wasn't able to find a answer for my problem.I want to record audio from the microphone, apply some audio signal processing and than save the processed audio data in a compressed format.I figured out, how to record audio uncompressed but now I wonder if I can use some api functions to store this data in a supported compressed format.
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Feb 15, 2010
I want to play music from online mp3 link.I am reading the music data into a stream and trying to play it using audio track.But itz giving only noise.No music i could listen.here buffer is the audio data i am reading into.Same buffer I can play in MediaPlayer,,,But i could not play in audio track.
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Oct 12, 2010
I have written some apps, but have a general question. If I were to write an improved version of - let's say - TextView. Is it possible to make all app's on the system using this class, basically replace TextView? How are the java classes on the Android system, are they compiled, can I replace the library? Is this protected?
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Dec 9, 2009
just started using the Pandora music app, but my kids in the back seat could not hear it. so I stopped by Walgreens and picked up the "JUPITOR JACK". you can't miss it cause it has the big red ad: "AS SEEN ON TV". it works well enough, but I had to tweak my car audio system to make it decent. whatever the droid plays comes out on the car radio, it's better then my old belkin FM transmitter.
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