G-STOMPER, Drum Machine/Groovebox for Android

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Perform your own beats live with G-Stomper Drum Machine/Groovebox.

Get G-Stomper from Android Market

G-Stomper is a highly optimized Drum Machine/Groovebox for doing electronic live performances. Check out the Demo Videos, the Example Beats and the Screenshots to get a first view. For detailed infos, check the Tech Specs and the Release Notes.

G-Stomper User Manual: G-Stomper_UserManual_v_1_5_0.pdf

Get the FREE G-Stomper Genres-1 Sample-Pack Add-On from Market   FREE G-Stomper Genres-1 Sample-Pack Add-On
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Get G-Stomper FREE demo or Full (paid) Version from Android Market.

Thank you guys for all the support!! Today (21th Dec) the G-Stomper DEMO catched the 50'000 downloads mark. Having my very first mobile (and audio) app installed on that much devices is a fantastic reward for all the efford I put into the project.

As you maybe already noticed, I took a break in the development of G-Stomper. ETA for the next update will be end of March 2012. You can be sure, there are still a bunch of features waiting;) as well as several (free) sound packs.

Thank you all for your support and all the feedback and ratings, which were a great help to improve G-Stomper from release to release, and which brought G-Stomper to its current rocksolid state.

I Wish you great fun creating beats with G-Stomper
.. and thanks for your patience till March 2012

Reviews:
G-Stomper @ Hitsquad.com
G-Stomper Android Groovebox @ Laptoprockers.eu
This Week In Music Apps: Groove Machines @ Evolver.fm
G-Stomper: ótima Drum Machine para Android @ MusicApps.com.br

For the developers: G-Stomper is written in pure JAVA, it uses no NDK and it's developed within the 16mb (per app) limit. Thanks to Dan Bornstein and Google for writing the dalvik VM, which has, in fact, a great performance.
Download G-Stomper DEMO Download G-Stomper
Download G-Stomper DEMO from Android Market Download G-Stomper from Android Market
If you don't see the video clips below this text means you have no flash player installed. You can use the following link instead: Watch on YouTube



Special thanks to Jiri for posting this video.
G-Stomper Demo Beats:

G-Stomper beats sent by Users:

YouTube clips posted by Users:
 20110228 Dark (posted by muf211)

Main Screen:
G-Stomper Main Screen
Effect Section:
G-Stomper Effect Section
Master Section:
G-Stomper Master Section
Pattern Set (Live Arranger):
G-Stomper Pattern Set (Live Arranger)
Pattern Configuration:
G-Stomper Pattern Configuration
Technical Specifications:

G-Stomper is available in two versions, the full (paid) version and the FREE demo. The DEMO version is fully featured, only Loading/Saving is limited to one Pattern, the Audio Export (incl. SoundCloud) is disabled, and it has a limited sample set.

G-Stomper comes with a tablet optimized layout, which gives you a full size Drum Machine/Groovebox on a 10 inch screen.

Provides App2Sd support to save space on your device.

SoundCloud Upload Integration (full version)

Nr of sequencer Tracks:
11 Tracks (+ 11 Accent Tracks)

Audio Output Format:
16bit, 44.1kHz, Stereo

Internal Audio Format:
32bit float, 44.1kHz, Stereo

Audio Export Formats (full version):
8bit/16bit, 22.05kHz/44.1kHz, mono/stereo

Supported User-Sample Formats:
Uncompressed wav, aif, aiff, snd
Bit Rates: 8, 12, 16, 20, 24, 32, 32 float, 64 float
All Sample Rates (tested from 6kHz to 192kHz)
Mono, Stereo

Sample Memory:
Depends on the limit of your Device, current standard is 32Mb or more

Effects:
3 chainable Effect Processors, 1 sum Effect Processor, 17 Effect Types
The Effect Processors can be chained to each other, e.g. send a signal through EFX 1 and its output through EFX 2

Effect Types:
Compressor
Chorus/Flanger *
Phaser *
X-Delay *
Short Delay
Reverb
Pitch Shifter
Distortion
Bender Distortion
6 Filter types
2 Equalizers

* Tempo Sync

CPU usage depends on the effect type, e.g. chaining 3 Reverbs while using long samples on each Track will probably overload your device performance

Master Panorama/Volume
(Pre-/Post- sum EFX switchable)

Patterns (preloaded):
16 concurrent Patterns within 1 Pattern Set.
How many different samples you can use within these 16 Patterns depends on the memory limit of your device. Samples are pooled to save memory.

Patterns (saved on SdCard):
No limitation
Patterns can be saved standalone or with a Pattern Set (full version)

Pattern Length:
1..128 steps

Beat Types:
16th, 32th, 8th triple,16th triple

Last Step:
1..16
Set the last step to create asynchronous beats

Shuffle/Swing (per Pattern):
50..75 (+ step selection)
+ ON/OFF Switch for each Track

Tempo:
60.0..300.0 bpm
+ Tempo Lock

Modulation Sequences:
No limitation
It’s tested with modulation recordings on every supported parameter on all Tracks and Effect Processors

Recordable Track Parameters (each Track):
Accent Amount
Panorama
Volume
Sample Start Point
Sample Length
Sample Pitch
Amp Gate/Envelope
Envelope: Linear/Exponential
Sample Reverse
Efx send

Samples are shaped in real time, no precalculation required

Recordable Effect Parameters (each EFX):
Parameter 1 + 2

Step Edit:
Edit your recorded Modulations step by step

Tap Recording:
Record your beats by tapping them in on running sequencer

Step Shifting:
Move your beat forward and backward

Drum Kits:
Full version: 909, S09, 808, 707, 606/CR8000, 505, RZ-1, Electro, Rock
Demo version: 909, Electro

+ a small collection of vocals, synth fx, and bass sounds

Fill-In function (each Track):
Create randomized breaks
Fill-in lengths: 2 or 4 beats
Fill-ins can be on Hold or temporary (played once)

Pattern Set (Live Arranger):
A Pattern Set contains max 16 preloaded Patterns, which can be switched by tapping the Pattern slot buttons. On running sequencer, a Pattern change stays pending until the currently playing Pattern has finished. Pattern changes of any kind (also when loading Patterns) are always beat safe

Pattern Set (Song Mode):
Chain up to 99 Pattern changes to a Song. Just hit record and all your live Pattern changes will be recorded

Song Edit:
Edit your Song step by step

Audio Export (full version):
Export your Patterns and Songs in various audio formats, upload the exports to SoundCloud or send them to Ringtones, Notifications or Alarms

User Samples:
To add your samples, just copy them into the folder
/gstomper/usersamples (full version)
/gstomperdemo/usersamples (demo version)
or add your own folder locations using the in-app User-Samples configuration

Minimum recommended device specs:
800 MHz processor
800 * 480 screen resolution
Headphones or external speakers
SoundCloud App installed (optional for SoundCloud upload)

Check out the free demo before buying the full version

Permissions:
Read phone state/identity: used for license checking
SdCard read/write: used to read samples and to save Patterns, etc.

If you have any problems, please contact me on Facebook, Twitter
or mail me at: gal (at) planet-h (dot) com

Tags: Drum Computer, IDM, Vintage Drums, Electribe like, Mobile Music Making, Music Creation Tool
Release Notes:

1.5.0
New Master Section (long click on EFX edit to open it): Features a new sum Effect Processor (11 different Effect types) and a Master Panorama/Volume (switchable as Pre-/Post- sum EFX).
Updated Documentation (in-app and PDF)
Fixed the "not licensed" timeout bug in the licensing module.

1.4.9
Raised the max BPM value to 300.0 (thanks to Jerome, Blue Manontelly and Austin)
New Feature: Independent Shuffle/Swing ON/OFF Switch for each Track
Improved Sequencer core
Updated Documentation (in-app and PDF)

1.4.8/1.4.8a
Maintenance Release
Removed the (misplaced) long clickable mark at 'Song ed' Button
Added the missing 'SD Card available' check to Load/Save Pattern

1.4.7
Changed the pitch scaling from -100/+100 to -120/+120 to make it easier to select half tones, 10 = 1 half tone (thanks to Jan for the hint).
New 'Rescan User-Sample Folders' function to reload the SoundBank without restarting G-Stomper after changing the physical folder contents (thanks to Jan for the hint)
Several Performance Optimizations in the Audio Engine
Several BugFixes and Optimizations in the User-Sample Handling
Minor Performance Optimizations for Modulation Recordings

1.4.6
New feature: Fine Tune Mode for Track and EFX faders - long click on 'step ed' to turn the fine tune mode ON/OFF (thanks to Mike for the hint)
Updated Documentation (in-app and PDF)

1.4.5
New feature: Long click on slider-texts (below track and efx sliders) resets the slider to it's default position (thanks to Mike for the hint)
Changes in Soundbank management, preparation for using G-Stomper Sound-Pack Add-Ons (G-Stomper full version) / first Sound Pack Add-On will be released soon
Updated Documentation (in-app and PDF)

1.4.4
New feature: Programmable Multi-Mute at efx edit screen to mute/unmute mutliple tracks at once (special thanks to bmot for the idea). Check out the PDF UserManual at http://www.planet-h.com/gstomper for detailed info.
Minor Bugfixes on efx edit screen (solo/mute ui)
Updated Documentation (in-app and PDF)

1.4.3
New feature (full version): SoundCloud Upload Integration / Upload your exported beats directly to SoundCloud (SoundCloud App required)
Updated Help/About section

1.4.2
Detailed User Manual in PDF format, ready for download the G-Stomper Website: http://www.planet-h.com/gstomper/ (a link to the website is also placed in the Help/About section)
Minor bug fix in the "Clear Track Sample" function
Updated Help text

1.4.1
Fixed a bug in the audio engine, which produced errors on some reversed samples.
Updated Help/About section

1.4
New feature: Remove/Clear Track Sample (in the track pad menu)
Lots of new audio formats supported for user samples: All uncompressed WAV and AIFF formats / file extensions: wav, aif, aiff, snd / bit rates: 8, 12, 16, 20, 24, 32, 32float, 64float / sample rates: all (tested up to 192kHz) / mono, stereo

1.3.12
Fixed a startup bug, that caused a crash in some rare situations (many thanks to Mike and Jiri for their help in this case)

1.3.11
Hotfix release: Fixed the Android Market Screen Orientation bug, which resulted in an error downloading the app

1.3.9
New feature: In-App User-Samples management. You can now use the 'SoundSet Ld/Sv' menu actions 'Add User-Sample folder' and 'Remove User-Sample folder' to import/un-import your own sample folders (Thanks to Joshua for the input).
Updated Help section
Minor bugfixes and optimizations

1.3.8
New feature: Track Mute/Solo controls in EFX section
New feature: Multiple (selectable) Export Audio Formats (8/16bit, 22050/44100kHz, mono/stereo)

1.3.7
New feature: MPC like Swing. In addition to the swing factor, you can now configure, which steps should be swing-activated
Loading a Pattern Set containing a 'not longer existing' or 'corrupt' Pattern will now replace these Patterns with an initial one instead of cancel the loading process
Clicking on the title text below the track and efx faders now shows the fader value on display
1/4 Bar Steps are now highlighted with bold text

1.3.6
Major Tablet Optimization part2: Fixed Layout for big screens

1.3.5
New feature: You can now save your own sample mappings as User-SoundSets (full version only)
Major Tablet Optimization part1: Fixed Layout for big screens (part2 will be in the next release)
Fixed some minor text scaling issues

1.3.4
Fixed a major issue in the startup process
Added 2 Demo Videos in the Help/About section
Minor bugfixes and label corrections

1.3.3 (demo only)
Minor bugfixes

1.3.2 (demo only)
Added 2 Demo Videos in the Help/About section.
The demo welcome dialog is now shown only at the first start of the demo, and then never again

1.3.1 (demo only)
Enabled a limited Load and Save feature for the demo. Its now possible to load and save one Pattern on the main screen.

1.3
New feature: Tempo Sync for X-Delay, Chorus/Flanger, Phaser
New feature: Tempo Lock, avoid unwantend tempo changes in live sessions
Moved 'Select Sample' up in Track Menu
Loading a Pattern containing a 'not longer existing' usersample will now replace the sample with initial sample instead of cancel the load command
Activated Steps with Accent enabled are now highlighted in normal and accent mode
UserSamples with multiple consecutive spaces in file name are now working properly

1.2
New features: Song Mode and Song Audio Export (Check Help/About)
Audio Export Performance improvement
Audio Export does not stop anymore if the Application goes to the background
Sample Select Dialog now remembers its scroll position when going back from inside a sample folder
Set Pattern Name Dialog is now shown when copying a Pattern in Pattern Set
Added fast scroll support in several Dialogs
Added Progressbars for long loading screens
Fixed the text color issue on some Motorola devices

1.1.3
Fixed a bug in tempo calculation
Added fast scroll support in sample selection
Added a new function to clear modulations of all track parameters at once

1.1.2
Minor Bugfixes in the Sequencer
Fixed the Layout for 1024x600 Screens

1.1.1
Fixed the startup crash when waking up the device after a long sleep time

1.1
Minor Bugfixes in the Pattern Conf Section
New Step Edit feature: Allows you to edit recorded modulation sequences step by step or create new modulation curves the same way
UserSamples locations are now stored in /gstomper[demo]/usersamples.conf file, where you can add your own locations (outside the gstomper folder) to avoid sample bank duplication