APPLIED ACOUSTICS SYSTEMS Strum Acoustic GS-1 User Manual Download Page 3

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Contents

Introduction

1.1

System Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1.2

Installation

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1.3

Authorization and Registration . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1.3.1

Step 1: Generating the Challenge Key . . . . . . . . . . . . . . . . . . . .

1.3.2

Step 2: Generating the Response Key and Registering your Product . . . .

1.3.3

Step 3: Completing the Unlock Process . . . . . . . . . . . . . . . . . . .

1.3.4

Obtaining your Response Key and Registering by Fax or over the Phone: .

1.4

Getting Started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1.4.1

Using

Strum Acoustic

in Standalone Mode

. . . . . . . . . . . . . . . . .

1.4.2

Exploring the Factory Presets

. . . . . . . . . . . . . . . . . . . . . . . .

1.4.3

Using MIDI Links . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1.4.4

Using MIDI Program Changes . . . . . . . . . . . . . . . . . . . . . . . .

1.4.5

Using

Strum Acoustic

as a Plug-in . . . . . . . . . . . . . . . . . . . . . .

1.5

Getting Help . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1.6

Forum and User Library

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1.7

About this Manual

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

English

An Overview of

Strum Acoustic

2.1

Chord Detection and Voicing . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.2

Strumming

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.3

The Graphical Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.4

Signal Flow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Keyboard Layout

3.1

Lead and Chord Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.2

Strumming Keys

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.2.1

Downstroke and Upstroke . . . . . . . . . . . . . . . . . . . . . . . . . .

3.2.2

Palm Muted Downstroke and Upstroke

. . . . . . . . . . . . . . . . . . .

Summary of Contents for Strum Acoustic GS-1

Page 1: ...USER MANUAL ...

Page 2: ...2008 Applied Acoustics Systems DVM Inc All rights reserved Printed in Canada Program Copyright c 2008 Applied Acoustics Systems Inc All right reserved Strum VG is a Trademark of Applied Acoustics Systems DVM Inc Windows 98 2000 NT ME XP and DirectX are either trademarks or registered trademarks of Microsoft Corporation Macintosh Mac OS and Audio Units are registered trademarks of Apple Corporation...

Page 3: ...rted 15 1 4 1 Using Strum Acoustic in Standalone Mode 15 1 4 2 Exploring the Factory Presets 16 1 4 3 Using MIDI Links 17 1 4 4 Using MIDI Program Changes 17 1 4 5 Using Strum Acoustic as a Plug in 17 1 5 Getting Help 17 1 6 Forum and User Library 18 1 7 About this Manual 18 English 9 2 An Overview of Strum Acoustic 19 2 1 Chord Detection and Voicing 19 2 2 Strumming 20 2 3 The Graphical Interface...

Page 4: ...rum Down 28 4 2 2 Chord Change 29 4 2 3 Chords and Change of Pitch 29 4 2 4 Hammer On and Pull Off 30 4 3 Using the Strumming Keys 30 4 3 1 Down and Upstroke Strum 30 4 3 2 Palm Muted Down and Upstroke 31 4 3 3 Muffled Down and Upstroke 31 4 3 4 Arpeggios 31 4 4 Specific Techniques 33 4 4 1 Trills 33 4 4 2 Tremolo Picking 33 4 4 3 Muted Strum 33 4 4 4 Partial Strumming 33 4 4 5 Bass Chords 34 4 4 ...

Page 5: ... 5 5 5 Documenting Presets 43 5 5 6 Locating a Preset in the Browser 43 5 5 7 Resizing the Browser 43 5 6 MIDI Maps 44 5 7 Exporting and Importing Presets and MIDI maps 44 5 8 Backuping Presets and MIDI Maps 44 5 9 Restoring the Factory Presets and MIDI Links 45 6 Parameters 46 6 1 General Functioning of the Interface 46 6 1 1 Tweaking Knobs 46 6 1 2 Buttons 46 6 1 3 Drop down Menus and Displays 4...

Page 6: ...3 6 4 6 Wah 54 6 4 7 Notch Filter 54 6 5 Reverb 55 6 6 Edit Mode 55 6 6 1 The Strings Module 56 6 6 2 The Pick Fingers Module 58 6 6 3 The Hammer Module 60 6 6 4 The Mute Module 60 6 6 5 The Palm Module 60 6 6 6 The Body Module 61 6 7 Performance Parameters 61 6 7 1 Chord Display 61 6 7 2 Chord 62 6 7 3 Loop 62 6 7 4 Strumming 63 6 7 5 Tuning 64 6 7 6 Pitch Wheel 64 6 7 7 Aftertouch 65 6 7 8 Hold ...

Page 7: ...ing MIDI Links 68 8 2 4 Deleting MIDI Links 69 8 2 5 Creating a MIDI Map 69 8 2 6 Empty MIDI Map 69 8 2 7 Defining a Default MIDI Map 70 8 2 8 MIDI Program Changes 70 8 3 Latency Settings 70 9 Using Strum Acoustic as a Plug In 71 9 1 Window Size 71 9 2 Audio and MIDI Parameters 71 9 3 Automation 71 9 4 Multiple Instances 71 9 5 Saving Projects 71 9 6 MIDI Channel 72 9 7 MIDI program change 72 9 8 ...

Page 8: ...8 CONTENTS 12 License Agreement 86 ...

Page 9: ...ic includes a chord detection module and performs automatic voicing of chords In other words you play the chords you know on the keyboard and Strum will voice them automatically for different musical styles as a guitarist would have played them The picking hand technique of a guitarist is reproduced by an auto strum function special strumming keys or using standard MIDI loops Before discussing the...

Page 10: ...e response copy protection system which requires au thorization of the product A challenge key is a long string of capital letters and numbers that is generated uniquely for each machine during the registration process In other words for each machine you install this program on a different challenge key will be generated by the program The response key is another unique string of capital letters a...

Page 11: ... to you at the address which you provided during the purchase process After entering your serial number click on the Next button and your challenge key will appear automatically in the next pop up window 1 3 2 Step 2 Generating the Response Key and Registering your Product If your computer is connected to the internet click on the link to the A A S web server appearing in the pop up window This wi...

Page 12: ...ation of your product will entitle you to receive support and download updates when available as well as take advantage of special upgrade prices offered from time to time to registered A A S users Note that if you already purchased or registered another A A S product the information that you have already supplied under the same email address will appear in the form Feel free to update this inform...

Page 13: ...your computer is not connected to the internet take note of your serial number and challenge key and proceed to an internet connected computer Launch your browser and go to the unlock page of the A A S website at http www applied acoustics com unlock htm Enter your email address serial number and challenge key and click next You will then receive your response code on screen as described above ...

Page 14: ... of the unlock process Enter your response key in the window Click on the Next button and a pop up window will appear informing you that the authorization process has been successful Click on the Finish button to complete the process and launch Strum Acoustic You will normally only need to go this process once for a given computer except for some special cases On Windows computers your will need t...

Page 15: ...ber 1 514 845 1875 Email support applied acoustics com 1 4 Getting Started 1 4 1 Using Strum Acoustic in Standalone Mode The Strum Acoustic comes with a wide range of factory presets right out of the box which amounts to a huge range of sounds before you have even turned a single knob As you would expect the best way of coming to grips with the possibilities Strum Acoustic offers is simply to go t...

Page 16: ...menu Select your MIDI input device from the list in the MIDI Configuration window available from the MIDI MIDI Settings menu For more detailed information on Audio and MIDI configuration MIDI links and MIDI maps please refer to Chapter 8 1 4 2 Exploring the Factory Presets Factory presets can easily be accessed using the and buttons in the lower left corner of the toolbar These buttons are used to...

Page 17: ...l knob button or slider and a contextual menu will appear Select Learn MIDI Link and move a knob or slider on your MIDI controller to activate the link To deactivate the link right click control click on Mac on the control and choose the Forget MIDI Link command Refer to section 8 2 for more details on MIDI links 1 4 4 Using MIDI Program Changes The synthesizer responds to MIDI program changes Whe...

Page 18: ...er the general functioning of Strum Acoustic is presented Chapter 3 describes the special keyboard layout used to play Strum Acoustic Playing techniques are then presented in chapter 4 Chapter 5 explains how to use the application browser and how presets and MIDI maps are managed In Chapter 6 the different modules and controls are reviewed in detail Chapter 7 describes the different functionalitie...

Page 19: ... very important in order to obtain a realistic guitar sound to play chords as a guitar player would rather than how they are played on the keyboard The voicing of chords for the guitar is performed in two steps by Strum A chord played on the keyboard is first interpreted by the chord detection module in order to determine which chord was played on the keyboard Strum then finds a guitar voicing cor...

Page 20: ...l the parameters controlling the synthesis engine are located The different control parameters refer to the strings the pick and its interaction with the strings the action of fingers on the fretboard and the body of the guitar This section has seven different views The main and simplest one All is used to display parameters acting on the six strings of the guitar while the other six views reveal ...

Page 21: ...es reproducing the guitar itself an output stage has been included to allow further processing of the sound radiated by the instrument It is important to note how the MIDI signal received by the synthesizer is parsed Signal received from the MIDI input or MIDI player module is interpreted in terms of the fretting hand usually left hand and picking hand usually right hand of a guitar player MIDI no...

Page 22: ...22 An Overview of Strum Acoustic Figure 9 General architecture of Strum ...

Page 23: ...pressed on the keyboard otherwise it will play the notes as a melody or an interval 3 2 Strumming Keys Notes with MIDI number ranging between 71 B4 and 84 C6 are interpreted as special strum ming keys and are used to trigger different picking hand techniques as shown in Figure 10 De pending on the strumming keys used one can trigger downstrokes upstrokes as well as palm muted or muffled downstroke...

Page 24: ...essing the MIDI note number 82 B 5 3 2 5 Alternate Strum It is common for guitar players to vary the number of strings which are strummed when playing rhythmic patterns on a chord In Strum it is possible to define a main and an alternate strum using the strumming range control as explained in section 6 7 4 The MIDI note 71 B4 is used to switch between these two types of strum When this key is depr...

Page 25: ... rules lets consider different chords played in movable position A G major chord with bass played on G2 on the keyboard will be voiced by Strum with the bass on the sixth string The arp key will then follow the order of the guitar strings Playing a C major chord with the bass played on C3 on the keyboard results in a chord voiced by Strum with the bass on string 5 and the alternate bass on the six...

Page 26: ...ld Pedal The hold pedal MIDI CC 64 can be used either as a hold pedal or to activate alternate strumming depending on the settings of the Hold Pedal section of the interface In Hold Chord mode the pedal will hold the chord played by Strum as long as the pedal is not released If a new chord is detected while the pedal is still depressed the new chord will be played The pedal therefore enables one t...

Page 27: ...3 6 Hold Pedal 27 Strum Acoustic GS 1 QUICK REFERENCE SHEET Figure 10 Sections of the MIDI keyboard as used by Strum ...

Page 28: ... strumming key is depressed the strings are triggered Using strumming keys involves thinking like a guitarist and use the left hand to play chords or melodies while using the right hand to control the triggering of strings Note that strumming keys are always active whether the Auto Stum mode is switched on or off In the case where the Auto Strum mode is switched on and chords are played simultaneo...

Page 29: ... remove a note from a chord for example to switch from a C7 chord C E G B to a C chord C E G it is not sufficient to release the B key It is necessary in order to trigger again the chord detection module not only to release the B from the chord but also to release another note from the chord for example the G and replay it when one wants to strum the new chord 4 2 3 Chords and Change of Pitch Play...

Page 30: ...o Strum mode is switch off as we will now be using the strumming keys This way of playing Strum involves to think more in terms of a guitar player Indeed as the chord recognition and voicing module require some time to voice the chords it is necessary to play the chords slightly before triggering the strumming action with the strumming keys This is just like a guitar player who needs to position t...

Page 31: ...e muted by decreasing the pressure applied by the fretting fingers on the string The guitarist can control the effect by applying more or less pressure on the strings and obtain a percussive effect by striking the strings with the picking hand This effect is also known as scratching Now play a chord on the keyboard and use the muffled Down and Upstroke keys F and G 5 The strings are played as if t...

Page 32: ...rp 1 key This position is similar to that of a guitar player Here is a simple example of an arpeggio Play a C chord C E G with the left hand and then use the right hand to trigger the Bass E5 arp 4 G5 arp 3 A5 and arp 2 B5 keys Figure 17 A simple arpeggio When playing arpeggios it might be interesting to use Movable Lowest chord types in order to obtain a motion of the bass To try this set the Typ...

Page 33: ... been played by applying the full hand on the strings It is less dry than a scratch muffled stroke and brighter than a palm muted stroke One way to recreate this effect is to strum a chord using the down and upstroke keys C5 or D5 and playing the mute all key B 5 very rapidly 4 4 4 Partial Strumming A guitarist does not always strum all the strings in a chord This is why Strum offers the possibili...

Page 34: ...ined by switching between the root or fifth played on the bass string and a strum on the remaining strings To obtain this effect it is therefore important that the lowest string is note in cluded in the stroked part of the pattern In order to reproduce this effect with Strum one must first use the bass or alternate bass key E5 or F5 and hold it while playing one of the stroke trig gers Indeed when...

Page 35: ...voice the lowest note on the lowest string which will result in both notes being played one after the other A power chord voicing on three strings is obtained by playing the root the fifth and the root again one octave higher on the keyboard 4 5 Using MIDI Loops Reproducing complex patterns played on the guitar can rapidly become complicated and requires to be a good keyboard player The good news ...

Page 36: ...he same patterns many time with different velocities for each repetition If the loop includes chords always make sure that they are well quantized and that there is always a strumming key played at the same time This will avoid unwanted strokes when the loop is played while the Auto Strum mode is switched on Avoid using MIDI controllers whose effect can be changed by the user For example the pitch...

Page 37: ... by Strum is the lowest note played on the keyboard This type of voicing is useful if it is necessary that the bass of the chord sequence follows a specific movement Root The lowest note in the guitar voicing chosen by Strum is the root of the detected chord It is very common for guitar chords to have the root in bass position This choice of chord type allows one to play chords on the keyboard usi...

Page 38: ...38 Playing Strum Funk Moveable Root with Playing Position on a high fret Flamenco Open Root with a rapid strumming speed Use the alternate strum on the four highest strings ...

Page 39: ...ations on the preset library are conveniently man aged with the help of the Strum Acoustic browser similar to those found in most email programs which use a hierarchical tree structure and a visually intuitive drag and drop approach To explore the different presets available in the library open the different fold ers by clicking on the icon Windows or I symbol on Mac OS to the left of folders Each...

Page 40: ...he program change number received by the application A Preset can also be loaded from the preset library It is then stored in the current program replacing the preset that was already stored in this location It then becomes immediately available to the synthesis engine Different options are available to load a preset from the preset library into the current program In the browser double click on a...

Page 41: ... to go back and forth between the different stages of your modifications and adjustments To move back step by step through every modification that was ap plied to a preset use the Undo command from the Edit menu or the Ctrl Z Apple Z shortcut Once the Undo command has been used it is also possible to move up again through the modifications by using the Redo command from the Edit menu or the Ctrl Y...

Page 42: ...ist is always saved with a project The default program list will be loaded only if a new project is started or if a new instance of Strum Acoustic is opened within a project 5 5 Organizing the Preset Library 5 5 1 Creating Folders Sub folders can be created by first selecting a folder by clicking on it and using the New Folder command from File menu 5 5 2 Copying and Moving Presets and folders Pre...

Page 43: ...ing the Shift key depressed Once the group of items has been selected use the Delete function as explained above 5 5 5 Documenting Presets It is possible to document a preset and view related information To view or edit information on a preset first select it in the browser and choose the Preset Info command from the Edit menu or use the Ctrl I Apple I shortcut It is also possible to right click c...

Page 44: ...der select the elements to export in the browser and use the Export command from the File menu When the Export window appears choose a file name and a destination location on your hard disk Strum Acoustic export files will be saved with an strumA extension Importing presets and MIDI maps is just as easy Simply click on the Import command from the File drop down menu and select the file to import A...

Page 45: ...ion Note that restoring the factory library should be done with caution as you will loose all the work you might have saved into the library and that this operation can not be undone easily If you wish to recuperate a certain number of presets and MIDI maps after restoring the factory library we recommend that you first export all the material you wish to keep using the Export command as explained...

Page 46: ...ghtly faster action To move a knob to a given position place the mouse at this position and Shift click Win dows or Option click Mac OS To reach this position slowly do the same but use the middle button of the mouse Windows only Knobs with bi directional arrows in the middle of their contour can be adjusted directly to their center position by double clicking on them When viewing parameters for i...

Page 47: ...ucing CPU usage 6 1 5 Modulation Signals Some parameters such as the Speed parameter from the Strumming section can be modulated with MIDI velocity When it is the case a Velocity knob appears below the parameter and both knobs are linked by a thin vertical line 6 2 The Guitar Modules This is the main view of the instrument and is activated when the All button located in the upper left corner of th...

Page 48: ...xes the pitch of the sound we hear depending on their effective lengths In a real guitar the material of the sting affects the sound of the instru ment For example the sound of a metal string is brighter than that of a nylon one The Tone knob controls the decay time of high frequencies in the sound relatively to that of low frequencies which is a parameter related to the ma terial of the string Tu...

Page 49: ...t is obtained by first picking a note and then hammering down another finger onto the same string at a higher fret The pull off effect is almost the opposite of the hammer on It is obtained by first picking a note and then sharply pulling off the finger from the fretboard in order to hear a second fretted note on the same string The sounds produced using these techniques are softer and less percus...

Page 50: ... 6 The Global Module The Velocity knob is used to decrease or increase the modulation effect from the MIDI velocity signal This parameter affects all the parameters modulated by the MIDI velocity 6 2 7 The Body Module The role of the body or soundboard of an acoustic guitar is to radiate the vibra tion energy from the strings The body also adds a filtering effect to the vibration from the string w...

Page 51: ...in factor to components located above a cutoff frequency while leaving those below unchanged The cutoff frequency of this filter is located at 3 KHz and the amplitude of the high frequencies is controlled using the Hign knob which works similarly to the Low knob Amplitude dB 0dB Freq Frequency Hz Amplitude dB 0dB Frequency Hz Freq Gain 30 dB Gain 10 dB Gain 20 dB Gain 30 dB Gain 30 dB Gain 20 dB G...

Page 52: ...bed below 6 4 1 Delay The Multi Effect module includes 3 different types of delay effects Ping Pong Digital and Tape Delay The Digital delay consists in a standard delay line with feedback The tape delay is similar but also includes a low pass filtering effect in order to simulate the attenuation of high frequencies in analog tape delays The Ping Pong delay is based on two delay lines resulting in...

Page 53: ... in the output signal from the module When the knob is adjusted in the left position only the original or dry signal is sent to the output while in the right position only the processed or wet signal is sent to the output The Depth knob is used to control the amplitude of the effect while the Rate knob is used to fix the modulation frequency of the effect if the Sync function is off 6 4 4 Vibrato ...

Page 54: ... In the case of the Wah Wah effect this excursion is applied around the value fixed by the Freq knob while in Auto Wah effect the value of the center frequency increases from the value fixed by the Freq knob Turning this knob clockwise increases the excursion of the center frequency Finally the Rate knob controls the frequency or rate of the modulation of the center frequency of the filter In the ...

Page 55: ...ignal which is related to the proximity of the sound source The Decay is used to control the reverberation time of the room In a real room the reverberation time is not constant across the whole frequency range because the walls of the hall are generally more absorbent at high frequencies which results in a shorter reverberation time for these frequencies This effect is controlled with the Color k...

Page 56: ...clicking Mac OS on the corresponding knob and moving it Finally note that some of the parameters are framed by a lighter color background This simply means that these parameters can be controlled from the general view obtained when clicking on the All button 6 6 1 The Strings Module The vibrational motion of a string can be decomposed into two different components one perpen dicular to the plane o...

Page 57: ...ount of high frequencies in polarity A or B of the string motion with respect to low frequencies In their leftmost position the decay time of high frequencies in the sound is lower than that of low frequencies in their rightmost position it is longer The overall decay time of the vibrations is controlled with the help of the Decay knobs and it is increased by turning the knobs clockwise As a rule ...

Page 58: ...ach of them corresponding to a different plectrum profile The first two models are better to simulate the interaction of the string with a hard pick while the third one is better to simulate the interaction with a smoother object such as a smooth pick or a finger The plectrum model is chosen using the Type selector String Damping Plectrum Stiffness Velocity Jut Thickness Figure 26 First pick model...

Page 59: ... string when they come into contact In other words it simulates how far behind the string a guitar player introduces the plectrum before picking the string This parameter affects the loudness and the spectral content of the sound as well as the the interaction time between the plectrum and the string This parameter can also be modulated with the MIDI note velocity signal using the Velocity knob be...

Page 60: ...sition the pressure between the finger and the string is strong and one can hear the pitch of the fretted note In its middle position the string is muted efficiently and one can depending on the fret where the finger is located hear harmonics ringing The tone and decay time of these harmonics are set using the Tone and Decay knobs which fix the decay time and the spectral content of these tones re...

Page 61: ...e Size selector knob allows one to control the size of the body Basically reducing the size of the body shifts its frequency response toward higher frequencies while increasing it results in a shift toward lower frequencies Available sizes are very large xl large l medium m small s and very small xs 6 7 Performance Parameters 6 7 1 Chord Display The Chord Display is where Strum displays the name o...

Page 62: ...ible to tell Strum in which neck position to play chords using the Playing Position parameter The position is specified in fret number and indicates the lowest fret on which the lowest note of the chord should be played It is not always possible to satisfy this constraint and Strum will respect this position whenever it is possible This parameter is of course only valid for movable chords and it i...

Page 63: ... it is possible to scan the loops in the same folder using the skip forward and skip backward buttons The loops are scanned in alphabetical order starting from the currently loaded loop Once a loop has been selected it might be necessary to modify it A loop can rapidly be exported to the MIDI track of a sequencer by using the Drag MIDI button To export the loop click on the Drag MIDI button then d...

Page 64: ...chord are specified by click dragging the cursors located at each extremities of the display Note that the range must contain at least one string 6 7 5 Tuning The Tuning module is used to transpose the output pitch of Strum The output pitch can be increased or decreased by one semi tone by moving the tuning knob clockwise or anti clockwise respectively When in its center position Strum uses standa...

Page 65: ...controller can have two functions in Strum When the Hold Chord button is switched on Strum will hold the notes of a chord after the keys on the keyboard have been released as long as the pedal is depressed or until another chord is played When the Alt Strum button is switched on the pedal can be used to switch between the main and alternate Strum as described in section 4 4 4 6 7 9 Mod Wheel The m...

Page 66: ...rrent program is different from the version saved in the preset library the preset icon to the left of the buttons changes color in order to indicate that saving is necessary in order not to lose the changes that have been applied 7 2 MIDI map In the center of the toolbar displays the name of the currently opened MIDI map For more information on MIDI maps please refer to Section 8 2 7 3 CPU meter ...

Page 67: ...ntrol information it receives The smaller the buffer size the shorter the latency and vice versa On Windows systems using ASIO drivers this command opens the control panel provided with the driver and the content of the dialog depends on the driver Some sound cards also require that you close all programs before making changes to the buffer size or sampling rate If you discover this is the case wi...

Page 68: ...dd MIDI Link window 8 2 3 Editing MIDI Links MIDI links can be edited in the MIDI Links window which lists all the currently available MIDI links To edit the MIDI link right click Control click again on the control and choose Edit MIDI Link to open the MIDI links window You can also use the Edit MIDI Link command from the MIDI menu Click on the MIDI link you wish to modify and then on the Edit but...

Page 69: ...by clicking on the MIDI link to be removed to select it then by clicking on the Remove button and the OK button to confirm the change 8 2 5 Creating a MIDI Map A set of MIDI links can be saved into a MIDI map by using the Save MIDI Link As from the File menu Different MIDI maps corresponding to different MIDI controllers can thereby be saved for Strum Acoustic A MIDI map can be loaded by double cl...

Page 70: ...required to play a buffer just divide the number of samples per buffer by the sampling frequency For example 256 samples played at 48 kHz represent a time of 5 3 ms Doubling the number of samples and keeping the sampling frequency constant will double this time while changing the sampling frequency to 96 kHz and keeping the buffer size constant will reduce the latency to 2 7 ms It is of course des...

Page 71: ...plug in the audio and MIDI ports sampling rate buffer size and audio format are determined by the host sequencer 9 3 Automation Strum Acoustic supports automation functions of host sequencers Automation can usually be done by using MIDI links and recording MIDI events or by recording the motion of controls on the interface 9 4 Multiple Instances Multiple instances of Strum Acoustic can be launched...

Page 72: ...ge is received by the application the current program used by the synthesis engine is changed to that having the same number as that of the MIDI program change message 9 8 Performance Using a plug in in a host sequencer requires CPU processing for both applications The load on the CPU is even higher when multiple instances of a plug in or numerous different plug ins are used To decrease CPU usage ...

Page 73: ...set Save Preset Ctrl S Apple S Save the current preset Save Preset As Save the current preset under a new name Save MIDI Links Ctrl Shift S Apple Shift S Save the current MIDI links Save MIDI Links As Save the current MIDI links under a new name Import Import a strumA file Export Export a strumA file Restore Factory Library Restore factory library and programs Everything else in the browser is del...

Page 74: ...Ctrl Z Apple Z Undo last command Redo Ctrl Y Apple Shift Z Redo last command Copy Ctrl C Apple C Copy selected item Paste Ctrl V Apple V Paste Delete Del Delete selected item Info Ctrl I Apple I Edit information about a selected item browser Preferences Display the Edit General Preferences window ...

Page 75: ...ndows Mac OS Description Audio Settings Display the Audio Settings window Audio Control Panel Display the Latency Settings window if DirectSound is used the ASIO control panel when ASIO drivers are used and the Audi MIDI setup configuration tool on Mac OS systems ...

Page 76: ...last control touched Add MIDI Link Enables one to add a MIDI link on the last controlled touched Forget MIDILink Drop a MIDI link Set MIDI Link Minimum Value Limit the value of a MIDI link to a minimum value Set MIDI Link Maximum Value Limit the value of a MIDI link to a maximum value Edit MIDIlinks Display the Edit MIDI links window All Notes Off Send an all note off signal ...

Page 77: ... current program in the browser and select it Rename Program Ctrl R Apple R Rename the current program in the program list Switch to Program Ctrl P Apple P Change the current program Save All Programs Save the entire program list including modifications to programs The list will be in exactly the same state the next time you open the application ...

Page 78: ...ick Reference Sheet Display the keyboard layout reference sheet Authorize String Studio Display the Authorization window Active only if the application has not been authorized Visit www applied acoustics com Launch the browser and go to the AAS website Join the user forum Launch the browser and go to the AAS forum Get support Launch the browser and go to the support section of the AAS website ...

Page 79: ... chord display When chords are played on the keyboard the order of the notes above the root is not taken into account by Strum This implies that you can play the chords as you know them on the keyboard without having to know or learn special voicings used by guitar players Certain guitar voicings do not include all the notes played on the keyboard In addition to the chords listed below Strum can r...

Page 80: ...Maj9 no 5 CmMaj9 CmMaj9 no 5 CMaj9 5 C6 9 Cm6 9 Cm6 9 no 5 Cm11 Cm11 no 5 C13 C13 no 5 Cm13 Cm13 no 5 C13 9 C13 9 no 5 CMaj13 CMaj13 no 5 C7 9 C7 9 no 5 C7 9 C7 9 no 5 C7 5 9 C7 5 9 C7 5 9 C7 5 9 C7 11 Cm7 11 Cm7 11 no 5 CMaj7 11 C7 9 11 C7 9 11 C7 9 11 no 3 C7 13 C7 13 no 5 Cm7 13 Cm7 13 no 5 C7 13 CMaj7 13 CMaj7 13 no 5 C7 9 13 C7 9 13 C9 11 CMaj9 11 C9 13 ...

Page 81: ...dix Lists of Chords Detected by Strum 81 List of Chords Example of a possible position on the keyboard C Cm Csus2 Csus4 Caug Cdim C 5 C6 Cm6 Cm6 no 5 C7 C7 no 3 C7 no 5 Cm7 Cm7 no 5 C7sus2 C7sus2 no 5 C7sus4 ...

Page 82: ... Chords Detected by Strum List of Chords Example of a possible position on the keyboard C7sus4 no 5 C7 5 Cdim7 C7 5 Cm7 5 CMaj7 CMaj7 no 3 CMaj7 no 5 CmMaj7 CMaj7sus2 CMaj7sus4 CMaj7 5 Cadd9 C9 C9 no 5 Cm9 Cm9 no 5 C9sus4 ...

Page 83: ...rds Detected by Strum 83 List of Chords Example of a possible position on the keyboard C9sus4 no 5 C9 5 C9 5 CMaj9 CMaj9 no 5 CmMaj9 CmMaj9 no 5 CMaj9 5 C6 9 Cm6 9 Cm6 9 no 5 Cm11 Cm11 no 5 C13 C13 no 5 Cm13 Cm13 no 5 C13 9 ...

Page 84: ...Detected by Strum List of Chords Example of a possible position on the keyboard C13 9 no 5 CMaj13 CMaj13 no 5 C7 9 C7 9 no 5 C7 9 C7 9 no 5 C7 5 9 C7 5 9 C7 5 9 C7 5 9 C7 11 Cm7 11 Cm7 11 no 5 CMaj7 11 C7 9 11 C7 9 11 C7 9 11 no 3 ...

Page 85: ...ndix Lists of Chords Detected by Strum 85 List of Chords Example of a possible position on the keyboard C7 13 C7 13 no 5 Cm7 13 Cm7 13 no 5 C7 13 CMaj7 13 CMaj7 13 no 5 C7 9 13 C7 9 13 C9 11 CMaj9 11 C9 13 ...

Page 86: ...er arrangement to users not individually licensed by AAS other than as expressly permit ted by the terms of this license The Software is licensed to you as a single product Its component parts may not be separated for use on more than one computer 3 OWNERSHIP AAS retains title to the Software including but not limited to any titles computer code themes objects dialog concepts artwork animations so...

Page 87: ...o have a valid license which is in effect at the time of receipt of each such update or new release This License shall remain in effect until terminated The Licensee may terminate this Agreement at any time upon notification to AAS This Agreement will terminate immediately without notice from AAS if the Licensee fails to comply with any provision of this License Any such termination by AAS shall b...

Page 88: ...of any quote order acknowledgement or similar communication between the parties during the term of this Agreement except as otherwise expressly agreed by the parties No modification to the Agreement will be binding unless in writing and signed by a duly authorized representative of each party 10 NON WAIVER No delay or failure to take any action or exercise any rights under this Agreement shall con...

Page 89: ...tion 19 detection time 62 display 61 drop 36 list 79 lowest 36 moveable 36 open 36 root 36 type 62 voicing 36 chorus 53 mono 53 stereo 53 commands 73 community 18 compare 41 contact 17 database backup 45 restoring 45 default MIDI map 70 delay 52 digital delay 52 display 47 documenting presets 43 downstroke 23 30 driver 67 drop chords 36 edit 41 edit mode 55 strings 56 edition of parameters 55 effe...

Page 90: ...ram change 17 40 70 modulation 47 modulation wheel 26 65 module bypassing 47 modules 46 moveable chords 36 muffled downstroke 31 muffled strokes 24 muffled upstroke 31 multi effect auto wah 54 chorus 53 delay 52 flanger 53 phaser 53 vibrato 53 mute 49 60 mute all 24 muted strum 33 no 3 61 no 5 61 no match 61 notch filter 54 octave 64 offset 47 open chords 36 output stage 51 overview 19 palm 50 60 ...

Page 91: ...oving 42 name 66 playing 40 program 39 renaming 43 saving 41 program 39 saving 42 program list 16 pull off 30 49 60 range 63 redo 41 registration 10 11 response key 11 14 reverb 55 sampling rate 10 67 scratch 31 shortcuts 73 signal flow 19 20 standalone mode 15 stationary bend 34 strings 48 56 strum down 28 strum range 63 strumming 20 63 auto 63 keys 63 strumming keys 20 23 28 30 sustain 65 system...

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