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Author Topic: Audio Evolution for Android / Win  (Read 2761 times)

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tekrytor

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Audio Evolution for Android / Win
« on: July 19, 2012, 10:23:14 PM »

http://www.audio-evolution.com


Owners Manual
http://www.audio-evolution.com/manual/doku.php?id=start

I just installed this on my new Nexus 7 last night and it seems a real treat. I think I will spring for the Windows version soon too. It looks like it will do most of what I've been doing with Sonar for years for a fraction of the price. And it works on Android as a very cool multitrack portastudio. Extremly affordable at €10 for all it does-IMO. It also works with external mic or guitar on Android using the Technics iXZ interface for around $30 on Amazon. Slick...or sick, depending on your generation.
« Last Edit: October 28, 2014, 01:53:52 PM by Elantric »
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Elantric

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Re: Audio Evolution for Android / Win
« Reply #1 on: July 19, 2012, 10:56:55 PM »

Cool app, although with Adroid 4.0 ICS there is a fair amount of latency.

EDIT: This is evolving and changing!
 
Would like to try this on the new Nexus Pad with Android 4.1 which is supposed to include new low latency Audio.

Link to a good reference on Android Low Latency Audio via USB 

By eXtreme-Audio and USB Audio Recorder PRO app.

http://www.extreamsd.com/USBAudioRecorderPRO/
More Android USB Audio tech stuff here
http://www.sammobile.com/forum/showthread.php?t=3403
 
« Last Edit: October 28, 2014, 01:59:06 PM by Elantric »
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tekrytor

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Re: Audio Evolution for Android / Win
« Reply #2 on: July 19, 2012, 11:39:32 PM »

The Nexus 7 updated first thing after booting on day one to 4.1.1. Seems pretty tight to me. I sang a few bars into track one, replayed and sang along on a second track, which seemed to sync fine, using the internal mic. No time right now to do measurements on the oscilloscope for meaningful tests, it's moving day tomorrow and Saturday. The android app is marked down right now at €3.99 or $5.10 is what I paid, normally €5.99 for the Android app. I think the multi tracking will only work well with hi-end devices and the 4.1, as you wrote!
I had not heard about the audio latency improvements with 4.1, but I can tell you that I am extremely happy with the Nexus 7 (16gb), very fast and elegant. The instrumnt apps are all showing improved performance with very acceptable latency now. Leon is a theramin app that kicks on this thing. Plus you get $25 at Google Play with the Nexus 7, so Audio Evolution, Leon and a few other cool apps were basically free.
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Elantric

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Re: Audio Evolution for Android / Win
« Reply #3 on: September 18, 2012, 01:52:35 PM »

Interesting reading for Android users who are waiting for low latency Audio

http://www.rossbencina.com/code/dave-sparks-on-android-audio-latency-at-google-io-2011

http://arunraghavan.net/2012/04/pulseaudio-on-android-part-2/

PulseAudio on Android: Part 2
By Arun | Published: April 30, 2012

Some of you might’ve noticed that there has been a bunch of work happening here at Collabora on making cool open source technologies such as GStreamer, Telepathy, Wayland and of course, PulseAudio available on Android.

Since my last blog post on this subject, I got some time to start looking at replacing AudioFlinger (recap: that’s Android’s native audio subsystem) with PulseAudio (recap: that’s the awesome Linux audio subsystem). This work can be broken up into 3 parts: playback, capture, and policy. The roles of playback and capture are obvious. For those who aren’t aware of system internals, the policy bits take care of audio routing, volumes, and other such things. For example, audio should play out of your headphones if they’re plugged in, off Bluetooth if you’ve got a headset paired, or the speakers if nothing’s plugged in. Also, depending on the device, the output volume might change based on the current output path.

I started by looking at solving the playback problem first. I’ve got the first 80% of this done (as we all know, the second 80% takes at least as long ;) ). This is done by replacing the native AudioTrack playback API with a simple wrapper that translates into the libpulse PulseAudio client API. There’s bits of the API that seem to be rarely used(loops and markers, primarily), and I’ve not gotten around to those yet. Basic playback works quite well, and here’s a video showing this. (Note: this and the next video will be served with yummy HTML5 goodness if you enabled the YouTube HTML5 beta).

(if the video doesn’t appear, you can watch it on YouTube)
PulseAudio on Android: Playback

Users of PulseAudio might have spotted that this now frees us up to do some fairly nifty things. One such thing is getting remote playback for free. For a long time now, there has been support for streaming audio between devices running PulseAudio. I wrote up a quick app to show this working on the Galaxy Nexus as well. Again, seeing this working is a lot more impressive than me describing it here, so here’s another video:

(if the video doesn’t appear, you can watch it on YouTube)
PulseAudio on Android: Remote Playback

This is all clearly work in progress, but you can find the code for the AudioTrack wrapper as a patch for now. This will be a properly integrated tree that you can just pull and easily integrate into your Android build when it’s done. The PA Output Switcher app code is also available in a git repository.

I’m hoping to be able to continue hacking on the capture and policy bits. The latter, especially, promises to be involved, since there isn’t always a 1:1 mapping between AudioFlinger and PulseAudio concepts. Nothing insurmountable, though. :) Watch this space for more updates as I wade through the next bit.
This entry was posted in Blog and tagged android, collabora, f/oss, pulseaudio, work. Bookmark the permalink. Post a comment or leave a trackback: Trackback URL.


And Audio Evolutions developer notes on  reducing Android Latency
http://www.audio-evolution.com/manual/doku.php?id=latency_and_latency_correction&DokuWiki=246149f11a801157a6439aa1fd749e06

and more reading an Android 4.1 + USB DACS
http://www.head-fi.org/t/595071/android-phones-and-usb-dacs/135
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tekrytor

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Re: Audio Evolution for Android / Win
« Reply #4 on: September 19, 2012, 12:34:48 AM »

Android has gained a lot of momentum. It's evolving quite fast now, both hardware and software.
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Elantric

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Re: Audio Evolution for Android / Win
« Reply #5 on: September 19, 2012, 09:28:15 AM »

Agreed - I'm really looking at waiting for November, drop AT&T and my monthly $109 iPhone bill and then buying an unlocked Galaxy Note 2 and move over to Sprint owned Boost Mobile for the $55 / mo data / phone plan.

EDIT - I tested the no contract carriers and found major problems with accessing internet while away from home on the road - So I ordered a Galaxy Note 2 from AT&T  - will be here November 2012

Edit = August 2013. Still really love my Galaxy Note 2! And will only consider migrating back to iPhone after they release a version with a larger screen. I'm spoiled  after using the Note 2 for the past 9 months. 
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Re: Audio Evolution for Android / Win
« Reply #6 on: April 20, 2013, 03:00:40 PM »

Link to a good reference on Android Low Latency Audio via USB 

By eXtreme-Audio and USB Audio Recorder PRO app.

http://www.extreamsd.com/USBAudioRecorderPRO/
More Android USB Audio tech stuff here
http://www.sammobile.com/forum/showthread.php?t=3403
 
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Elantric

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Re: Audio Evolution for Android / Win
« Reply #7 on: August 07, 2013, 09:28:11 PM »

The same person behind Audio Evolution (still the best Android Multi-track audio app)
http://www.extreamsd.com/index.php/component/content/article?id=9

is also performing great strides with Android low latency Audio using his USB Audio Recorder Pro app, as the test platform.
https://play.google.com/store/apps/details?id=com.extreamsd.usbaudiorecorderpro&hl=en





Here is the latest updated news August 6, 2013   

==

USB Audio Recorder PRO

Copyright © by eXtream Software Development

Last update: 6th of August, 2013

Introduction

The Android app USB Audio Recorder PRO allows you to record and playback audio using class-compliant USB audio devices on your Android phone or tablet! eXtream Software Development has written a custom USB audio driver from scratch because Android does not support USB audio (even Android 4.1 contrary to popular believe!).

Supported are mono and stereo streams, 16-bit and 24-bit and any sample rate (up to 192kHz) that the device provides. If your device exposes internal mute, volume and/or gain controls, they will be displayed in the Mixer tab.

Important: connect your device BEFORE starting the app, otherwise it will not get detected! When you connected your device before starting the app and it gave you a 'failed to initialize or open the USB device' message or similar, or the 3 top-right combo boxes are not filled, we ask you kindly to quickly use the Play Store refund option in case you purchased the full version and try out the demo. Please contact us if your device does not work.

Hint: for most reliable recording, put your device into 'Airplane' mode and shut down as many tasks as possible using task killers such as 'Advanced Task Killer'. Currently, USB Audio Recorder PRO has to run in the foreground, so do not switch to other apps during recording or playback since background apps only get 5% cpu time max. We will create a Service in the future that does not have this issue though.

We are also NOT affiliated with a program called 'USB Audio Recorder', 'USB Audio Tester' or 'USB Field Recorder' on the Play Store!

Troubleshooting

Ok, so you connected your audio device before starting USB Audio Recorder PRO and it still doesn't work, what to do?

If both your Android and USB device are in the supported devices lists:

Some devices require more power than your Android device can deliver. If your audio device is bus-powered (so no wall adapter) you could try putting a powered USB hub in between.
If you have a micro-USB port on your Android device, make sure you really have an OTG adaptor cable and not some sort of simple USB type converter, otherwise USB host mode is not activated.
It happens more often than one thinks that the micro-USB cable is not fitted fully into the micro-USB port. Make sure it fits really good and if your audio device has a blue USB light, check if it turns on when you connect it to your Android device. If it is not lit, then either the cabling is not right or your audio device consumes too much power. Note that the USB light must already be lit BEFORE starting the app.
Some devices are just picky (FiiO E17 for instance). Try to disconnect the cable and reconnect it, start the app, see if it helps.
Reboot your Android device
If your Android or USB device is not in the list:

Make sure your Android device has USB host mode: Google your device like 'Acer Iconia A100 USB host mode'. If you find hits saying it doesn't have USB host mode, then your device will not work. If you find hits stating that a custom kernel can activate USB host mode, then your device will not work unless you have that specific custom ROM.
Make sure your USB device is class-compliant: Google your audio device to check if it works under Linux since it then has a bigger chance of working (not that we use Linux drivers or also, but they usually have class-compliant devices working).
If that didn't help and you are sure you have an Android device with USB host mode and it isn't some China Rockchip-based tablet, you could send us a more detailed log by following these steps:

Open the app
Select the Prefs tab
Select Logging
Select Log to file
Exit the app
Go into Android settings -> Apps, select USB Audio Recorder PRO and Force Close it.
Start the app again and exit it again.
Please email the log file /mnt/sdcard/USBAudioLog.txt (or simply USBAudioLog.txt in the root of your device) to info@audio-evolution.com
Supported USB audio devices

Your USB audio device must be class-compliant in order to work. USB 1.1 and USB 2.0 class-compliant devices are supported with either USB audio spec 1.0 or 2.0. The following table gives an overview of the devices that either we tested or that have been tested by beta testers. In no way we can be held responsible for a device not working on your specific Android device, since every combination can pose new problems. We have a free demo version where you can test out your device combination before purchase.

Please take note: because there are hundreds of Android and USB audio devices out there, we did not manage to test them all. In case yours does not work, please use the 'feedback' button on top to send us information on your device or contact us by email. When you start recording and you get a message saying 'Failed to start recording', it is likely that your device does not supply enough power to your USB audio device if it is not self-powered. You can work around it by putting a powered USB hub in between.

Working audio devices (click link for full report)
http://www.extreamsd.com/USBAudioRecorderPRO/

If you have any questions or suggestions left, please contact us at info@audio-evolution.com.
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arkieboy

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Re: Audio Evolution for Android / Win
« Reply #8 on: August 08, 2013, 12:31:40 AM »

my monthly $109 iPhone bill


!!


You must get unlimited Internet with that surely.  My iPhone 5 deal is waaay cheaper than that


Steve



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Re: Audio Evolution for Android / Win
« Reply #9 on: August 08, 2013, 12:38:13 AM »

Quote
You must get unlimited Internet with that surely.

I do And I use it! Now with my Samsung Note2 and "grandfathered in" unlimited fast 4G LTE  dataplan on AT&T, which has the best coverage where I travel in California, specifically Avila Beach where i spend much time at girlfriends house (she has a slow DSL connection that does YouTube in 90 second chunks with another gap of 90 seconds for download - so Netflix is out of the picture - however Amazon instant Video works adequately well.   

But I do  average 2GB download  / week - and the connection is faster than most DSL connections.


But we do have higher mobile data costs here in USA compared to UK.
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arkieboy

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Re: Audio Evolution for Android / Win
« Reply #10 on: August 08, 2013, 10:35:32 AM »

I'd have no use for that - being an academic researcher I'm seldom out of range of EDUROAM at work, I have wifi at home and I rarely manage a Gb a month when I'm on the road.


Back on topicish, I think the list of requirements above is precisely why I'm happy to stay in the apple ecosystem.  In apple land it 'works on iPhone 4 and above' is a lot easier to digest than the dependencies on screen resolution and processing power that accompany android devices.  I may be a computer scientist by trade but I don't want a Linux or even PC like experience on a phone to tablet.  They are to my mind appliances - they should as far as possible just work and come in nice standard quanta of performance.  In any case computer hardware gets handed down in our household and I don't have to support the idevices as they pretty much look after themselves - if my son had android he would be a pest of the first order ;-) !


Each to their own of course - I don't expect anyone to agree  :)
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Toby Krebs

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Re: Audio Evolution for Android / Win
« Reply #11 on: August 08, 2013, 10:40:46 AM »

Apple has all the cool stuff  :)
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Re: Audio Evolution for Android / Win
« Reply #12 on: August 08, 2013, 11:01:59 PM »

Arkie,

If your son had an Android device instead of an "it just works appliance", he might be like my son and have his interest sparked to discover Linux. I doubt my son would be a computer science major today if all of his devices where only perfect appliances sent down from Heaven :) :)

I understand the appeal of both sides. I'm just playing Devils Advocate. I agree...to each his own.

bd

Via Tapatalk on ANDROID :)
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arkieboy

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Re: Audio Evolution for Android / Win
« Reply #13 on: August 09, 2013, 01:07:21 AM »

Ah, musicman65


I have other plans for my son ... much bigger ones than fiddling with an OS ;-)


Steve
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Re: Audio Evolution for Android / Win
« Reply #14 on: August 09, 2013, 06:40:02 AM »

President of the United States? LOL.

Btw, I can't stop my son from fiddling. He hacked his Xbox when he was 12. Lol.

Good luck with your plans. I hope HIS plans continue to align with yours. That's the big trick in child rearing.  :)

bd
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Re: Audio Evolution for Android / Win
« Reply #15 on: August 09, 2013, 08:46:55 AM »

With my son, parenting has been a bit like that odd Scottish sport of Curling - you know the one played on ice where the people with brooms sweep in front of the stone with the handle on to get it to go as far as possible?  My wife and I sweep as my son heads inexorably towards a doctorate in one of the hard sciences.  Most likely physics - he has the right kind of inquisitive mind, finds it all absolutely fascinating, and his maths is certainly up to it. 


I have my fingers crossed for Cambridge :)
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Elantric

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Re: Audio Evolution for Android / Win
« Reply #16 on: June 05, 2014, 06:51:52 PM »

Big Update
Audio Evolution Mobile DAW
eXtream Software Development  - May 27, 2014
Music & Audio
https://play.google.com/store/apps/details?id=com.extreamsd.aemobile









Description
"Audio Evolution Mobile is by far the best recording app we've seen for the Android platform" - Computer Shopper Jan 2014
The most powerful multitrack audio/MIDI sequencer on Android with support for over 250 USB audio/MIDI interfaces, virtual instruments(*), packed with features like non-linear non-destructive editing with unlimited undo/redo, mixing, real-time effects, automation and much more!
(*) The following in-app purchases are available to enable the following features:
• USB audio interface support (you can also purchase USB Audio Recorder PRO). Please see our compatibility list here http://www.extreamsd.com/USBAudioRecorderPRO and for more information here: http://www.audio-evolution.com/manual/doku.php?id=usbaudiosupport
• MIDI/virtual instrument support (enables MIDI sequencing, USB MIDI and virtual instruments)
• FX pack 1 (distortion, overdrive, speaker sim, wah wah, phaser)
• FX pack 2 (10-, 15-, 30-band graphic EQ)
Important: if you are have trouble starting the app, please contact us directly by email.
Features:
• Multitrack audio recording/playback
• MIDI sequencing (in-app purchase required)
• Non-linear non-destructive editing with move, trim, split, cut/copy/paste, remove, cross-fade and range editing
• Virtual instruments based on SoundFonts (in-app purchase required)
• Loop playback
• Volume/pan/mute automation
• Latency correction
• Import of WAV, MP3, AIFF, FLAC, Ogg/Vorbis audio files (m4a and others when running Android 4.1 or higher)
• Mastering to stereo WAV, AIFF, FLAC or OGG file
• Software monitoring for USB audio devices and some Android devices that have low enough latency
• Sample rate conversion
• Metronome
• Zoom down to the sample
• Each track has controls for volume, panning, mute, solo, arm, 3-band EQ with mid-sweep, 3 insert effects and output bus selection
• Unlimited number of tracks (*)
• Unlimited number of groups (*)
• Real-time effects include: chorus, compressor, delay, dual delay, reverse delay, reverb, bandpass, highpass, lowpass, flanger, noisegate and tremolo
• Offline effects: fade in/out, normalize, reverse, pitch shift, time stretching while maintaining pitch
• Unlimited undo/redo for editing facilities
• Several grid options for aligning your samples (with tempo and time signature settings)
• Repeat samples with several options to create loops
• Add markers and quickly jump to them
• Load/Save projects including loading projects from our desktop DAW Audio Evolution 5
• Can use ES File Explorer to select samples for import
(*) Depending on your hardware's capabilities

Requirements:
• 800x480 screen size or higher
• Android 2.3.3 or higher
Note: this app can only run in landscape. Trying to run it with apps like Ultimate Rotation Control can result in crashes. Turn off forced rotation for this app.
If you have any suggestions, questions or want to report a bug, please contact us! Instead of a negative review, please have the decency to contact us so we can actually solve your problem!
Loop packs, see for example:
https://play.google.com/store/apps/details?id=com.extreamsd.housefreepack
Twitter: http://twitter.com/#!/AudioEvolution5
Facebook: https://www.facebook.com/AudioEvolutionMobile
Online manual: http://www.audio-evolution.com/manual/doku.php?id=start
To prevent your device's mic from picking up what the speaker is playing back, we recommend using either:
* a USB audio interface or
* an iRig MIC Cast: http://www.ikmultimedia.com/products/irigmiccast. The iRig is of better quality and playback is done through its headphone output. Note that hardware monitoring is not possible and you won't hear what you are recording through the headphone.
Tags: audio recording, audio recorder, multitrack recorder, j4t, DAW, iRig, n-track, fourtrack, audio editing, audio mixing, mixer, auria, cubase, cubasis, audio editor, fl studio, audacity, sound, pro audio, usb audio, multitrack audio, usb audio recorder, zquence
« Last Edit: October 28, 2014, 01:57:23 PM by Elantric »
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Elantric

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Re: Audio Evolution for Android / Win
« Reply #17 on: October 28, 2014, 01:52:29 PM »

Complete list of compatible hardware
Also serves as a good reference of USB Audio Class Compliant Interfaces

http://www.extreamsd.com/USBAudioRecorderPRO/

Updates Android Low Latency development
http://www.rossbencina.com/code/interfacing-real-time-audio-and-file-io

http://www.rossbencina.com/code/real-time-audio-programming-101-time-waits-for-nothing

Android L -Lolipop = finally Low Latency Audio on latest hardware
http://www.vguitarforums.com/smf/index.php?topic=12721.msg92499#msg92499

Interesting reading on Real World Android Audio Music Creation
http://www.musicalandroid.com/interviews
Quote

How did you use Audio Evolution Mobile?

I edited, mixed and recorded my album with Audio Evolution Mobile.
I Like its features like Pitch Shift, Time stretch and effects: Reverse Delay, Tremolo.

When recording how did latency affect you and how did you deal with it?

I recorded samples/grooves/sounds with a click track and then edited them in Audio Evolution. But I was mainly using sounds which were not tied to a specific tempo. When using the piano app (on tracks Ph4 and Rise Of The Androids) I first recorded piano parts and then added other sound effects. I didn't have problems with latency in Audio Evolution (the app measures and calculates latency when recording audio). When you try to play something in tempo with apps like virtual piano/drums and other instruments is when things can get problematic. So I tried to avoid that, and just make music with things that work.

How come that you wanted to make a whole album using Android?

It seemed like a good idea and a challenge. I like challenges, and being fresh and progressive.

What were the biggest stumbling blocks?

Latency, small screen, finding compatible apps, and running out of disk space.

How long time did you spend more or less on the album?

The Album was finished in 3 months. Sometimes I waited for inspiration or I had technical problems. Meanwhile I played drums with my bands, so it was a longer process that was planned.

What would be your advice for someone looking into doing a album similar to yours using a lot of live recording and many different apps?

Don't use an Android device! :) Buy an external audio card - things can be done much easier. But it depends on what you want to do. If you are into experimental/electronic music, you can do a lot of interesting things with Android. If you want to record a rock band, I wouldn't suggest using Android.
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