Related Manuals for Inventronics SANDERSON ACCU-TUNER IV
Summary of Contents for Inventronics SANDERSON ACCU-TUNER IV
- Page 1 SANDERSON ♦ ACCU-TUNER OPERATING MANUAL INVENTRONICS, INC. 130 MIDDLESEX RD, Suite 14 TYNGSBORO, MA 01879-2725 www.Accu-Tuner.com Inventronics@aol.com 1-800-FAST-440 Outside USA/Canada CALL 978-649-9040...
- Page 2 RICK BALDASSIN JAMES W.COLEMAN, SR THIS MANUAL IS COPYRIGHTED. ALL RIGHTS ARE RESERVED. THIS DOCUMENT MAY NOT, IN WHOLE OR PART, BE COPIED, PHOTOCOPIED, REPRODUCED OR TRANSLATED WITHOUT PRIOR CONSENT IN WRITING FROM INVENTRONICS, INC. ©2009 INVENTRONICS, INC. TYNGSBORO, MA 01879...
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Page 3: Table Of Contents
INTRODUCTION....................5 GETTING STARTED ..................... 5 BATTERY STATUS INDICATOR ................6 CALIBRATION ......................6 THE THREE MODES OF OPERATION............... 6 THE TUNE MODE......................7 THE MEMORY MODE....................8 ....................8 ANGE OF EMORY ....................9 UNING FROM EMORY ....................9 UMBER ISPLAY ....................... 10 TUNIN GS MEASURING AND STORING THE FAC NUMBERS ........ - Page 4 ................... 19 TEPPING DJUSTMENT LAMP DEFAULT......................20 NEW FEATURES NOT IN THE MENU SECTION ..........20 IV ....20 DITING EADERS FROM THE EYBOARD OF THE UNER ..........20 IGNAL TRENGTH RAPH OR EADER ISTING PITCH RAISING....................20 CUSTOM PITCH RAISE ..................21 THE MEASURE (MSR) BUTTON ...............
- Page 5 TUNING WITHOUT FAC ..................32 DIRECT TUNING THE HIGH TREBLE..............32 DIRECT TUNING THE BASS ................... 33 PATENT NOTICE ....................33 INPUT-OUTPUT JACKS ..................33 BATTERY CARE....................34 NICKEL-METAL HYDRIDE..................34 BATTERY CHARGING CIRCUIT................34 TWO YEAR WARRANTY..................34 PTG EXAMINATION PROGRAM............... 34 APPENDIX A......................
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Page 6: Introduction
INSTRUCTION MANUAL INTRODUCTION The Sanderson Accu-Tuner IV (Accu-Tuner 4) is the latest in a line of tuning instruments that continue to be the world's finest programmable computer-controlled tuning instruments. Accu- Tuners are designed to aid the professional tuner-technician to achieve outstanding tuning results while spending less time doing so. -
Page 7: Battery Status Indicator
shut itself off or "time out" to conserve battery power if not used for thirty minutes. The same settings it had when it turned itself off will appear when the unit is restarted. The Accu-Tuner will be fully charged when received. The nickel-metal hydride (NiMH) battery will function for forty to sixty hours before charging is required. -
Page 8: The Tune Mode
1) The TUNE mode works like most of the conventional tuning instruments. Only six of the eight white buttons in the center of the keyboard are used, and they control the note, octave, and cents deviation to which the Accu-Tuner is set. The TUNE mode is the best place to start when first learning to use the keyboard. -
Page 9: The Memory Mode
button down again until the correct single digit appears and release. Repeat this procedure for the tenths digit. With these six white buttons, the Accu-Tuner does everything that previous tuning instruments have been able to do. Once familiar with operation in the TUNE mode, explore the other modes of operation. -
Page 10: Tuning From Memory
Tuni ng f rom Memory The header list shows the tunings that are stored on the pages of memory. To set the Accu-Tuner up to reproduce a tuning, turn on the Accu-Tuner and press the TUNE button, use the PAGE buttons to step to the page number assigned to this piano. -
Page 11: Fac Tunings
valuable tuning. When the Accu-Tuner is turned on, the PAGE number is automatically set to zero. A page of memory has to be selected before storing a tuning to memory. To select a page of memory, turn on the Accu-Tuner, press the TUNE button, press the PAGE up button to step up through the pages of memory. -
Page 12: Fac Tuning Partials
deviation now reads the A4 stretch number, the difference in cents between the second and fourth partials of A4. 5) Store the A4 stretch number by holding the SHIFT button, press STO-STRETCH, release STO- STRETCH, and release the SHIFT button last. The Accu-Tuner will automatically go to the correct settings for the next measurement, C6 and zero cents. -
Page 13: A Quick Method For Storing Stretch Numbers
When the Accu-Tuner creates an FAC tuning the program creates the tuning and sets the partial in the following manner. In the bass the Accu-Tuner is listening to the sixth partial, in the midrange the Accu-Tuner is listening to the fourth partial, treble the second partial and the upper treble the first partial or the fundamental. -
Page 14: Viewing Fac Numbers From A Page In Memory
the STRETCH button again for the C6 stretch number. The stretch numbers will continue to cycle through F3, A4, and C6 to review them again. NOTE: Some tuners have reported that the FAC numbers tend to get better, that is, drift lower as a piano is tuned repeatedly. -
Page 15: Cents Offset For H Z At A4
After the pitch offset is stored, take the FAC measurements as usual, when the tuning is stored to a page in memory, the cents offset will be added or subtracted from all eighty-eight notes as they are stored to the page of memory. As an example let’s say we have a piano that we want to leave twenty cents flat, store an offset of -20.0 cents (hold SHIFT and press RST), then measure the F3, A4, C6 stretch numbers with the standard method. -
Page 16: One Stretch Number Measurement For Tuning
extremely important for the tuner to check all unisons aurally when they have been tuned with the Accu-Tuner. However, do not try to check the unisons aurally during any pitch raise. Pulling up adjacent strings affects the pitch of the strings that have already tuned. The settling process on a string is not complete until another octave or so has been tuned. -
Page 17: Using The A4 Stretch Number Multiplier
15. Every two or three notes below A3 aurally check the sound of the octave to make sure you do not have too much stretch in the sound of the octave. The minor 3rd-M6th test is good to use (if the min 3rd is slower than the M6th, the octave is stretched beyond the 6-3 relationship). If the octave is becoming too wide, you can decrease the DOB .1 bps at a time about every 3 or 4 notes if desired. -
Page 18: Auto Note Stepping
2) Before pressing the TUNE button, press the NOTE up or down until the desired multiplier is shown in the cents display, 0.8 for the Coleman method of measuring the A4 stretch number. The A4 multiplier can be adjusted from 0.4 to 2.0. 3) Press the TUNE button and the Accu-Tuner will automatically multiply the stored A4 stretch number by the multiplier, until the Accu-Tuner is turned off with the ON/OFF button. -
Page 19: Using The Help Function
shorten the battery life by over fifty percent. While using the SAT, holding down the SHIFT 2 for more than two seconds alone will toggle the back lighting on and off. There is a method to adjust the brightness of the backlighting and to set the backlighting to come on every time the Accu-Tuner IV is turned on. -
Page 20: A " Multiplier Definition
When the Accu-Tuner was first manufactured there was a choice in the method of referencing notes on a piano. Al Sanderson decided to work with the first A on the piano would be A 0, the first C would be C 1 and work up the keyboard by octaves. Another method to denote the note you are tuning was to call the first note on the piano A1, second note as A#2, B 3, C4, C#5 all the way up to C 88. -
Page 21: Lamp Default
1) Turn on Accu-Tuner, hold down the SHIFT button till MENU appears 2) Press the NOTE up button five times, display showing: “AUTO STEP DELAY” 3) Press the SHIFT button, display showing: “AUTO STEP DELAY” and 1.0 when first selected. 4) To change, press NOTE up till display is showing “5”... -
Page 22: Custom Pitch Raise
button then release MEASURE, then release SHIFT. The Accu-Tuner will automatically offset itself by one-quarter of the measured flatness. (A note forty cents flat will automatically calculate an offset value of 10 cents sharp). Tune with the calculated offset for six to twelve notes, and then repeat the measurement on the next untuned note to get a new pitch-raise correction. -
Page 23: The Measure (Msr) Button
Custom overpull page is set up on page 123, to adjust the pitch raising overpull, set the number as the overpull percentage. If you would like to have the same overpull choices as the Accu- Tuner III (MSR roll over to SHIFT = 25%, MSR roll over to SHIFT 2 = 33%) then store 33 in all eighty-eight note locations. -
Page 24: Displaying The Cents Offset
1) Measure the stretch numbers of the piano. 2) Store the FAC tuning to a page in memory, go straight to A4 and tune all three strings. 3) Switch to the TUNE mode by pressing the TUNE button. 4) Press OCTAVE down twice, set the cents deviation to zero, and the display should read A4 0.0 5) Play A4 on the piano. -
Page 25: Warm Stop
WARM STOP The Sanderson Accu-Tuner IV has a time out circuit that is set to half an hour. To turn off the Accu-Tuner for a phone call without losing the settings, use the warm stop procedure. The Accu- Tuner will re-start with the same settings still turned activated, such as: auto-stepping, temperament, sequencing or double octave beat and the Page, Octave and Note. -
Page 26: To Alter The Stretch During The Tuning
2) Hold down the SHIFT button 3) Press the D.O. B. (Cents) button up to increase the width of the octaves, DOB button down to decrease the width of the octaves of the tuning to be calculated. 4) Select a page in memory. 5) Hold STRETCH button. -
Page 27: Non-Equal Temperaments
NON-EQUAL TEMPERAMENTS Another feature of the Sanderson Accu-Tuner is the ability to alter tunings and add different temperaments without having to physically alter all 88 notes of a tuning. The Temperament pages allow a technician to store the rules of a temperament for twelve notes and select any tuning and alter the tuning with the selected temperament automatically. - Page 28 method to enter the temperament-offset numbers. Turn on the Accu-Tuner IV, hold down the SHIFT button till the display shows MENU, step up with the NOTE button until the display shows Temperaments, press the SHIFT button and TEMPT 1 temperament will be in the displayed. If you would like to change the first temperament offsets, press the SHIFT button and the display will show TEMPT 1 in the lower half of the display, the note to enter the temperament offset for and display the present cents offset.
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Page 29: Using A Non-Equal Temperament Page
USING A NON-EQUAL TEMPERAMENT PAGE To convert a page in memory to a non-equal temperament, select a regular tuning in memory, and then select the desired temperament page. The Accu-Tuner will temporarily add the selected temperament on top of the selected page of memory. If we wanted to use temperament #6 that we had just stored (in the previous section), use the following directions: 1) Turn on the Accu-Tuner, press the TUNE button 2) Select the page of memory with the piano to tune, say it is Mr. -
Page 30: Sequencing
9) Release the STRETCH button 10) Release the MEM button The Accu-Tuner will calculate the FAC tuning with the rules of the selected temperament added/subtracted to the tuning, as it is stored to the page in memory. SEQUENCING Sequencing is the ability to program the Accu-Tuner to follow an aural tuning pattern, such as the Baldassin-Sanderson Temperament where A4 is tuned first, then A3, then A2, then F3 and so on. -
Page 31: Using The Sequence Page
To change a note in the sequence: 1) Make sure there is not a sequence page activated. Hold down the SHIFT button and press SEQ down until the display shows Chromatic is displayed. 2) Select the correct SEQuence page (above page 142 by using PAGE buttons). 3) Use the NOTE and OCTAVE buttons until the note to be changed is in the display. -
Page 32: Storing A Tuning In Memory From A Printout
6) To double check before storing the information press the MEMORY button, the displays will show the note and octave and the page number. Press the TUNE button to display the partial selected and the cents deviation for this partial. Make any changes necessary. 7) When the settings are all correct, store the tuning for this note by holding down SHIFT, then pressing and release STO-MEM. -
Page 33: Up Or Down Memory Storage
9) Once the partial is set up correctly, all that needs to be changed is the cents setting and store. One tip: it is easier to mark the partial changes on the tuning chart before storing the tuning, making it harder to forget the partial change while storing the tuning. Continue until the entire tuning is stored. -
Page 34: Direct Tuning The Bass
The method of tuning a piano by measuring its inharmonicity and then creating a numerical tuning customized to fit that piano are the subject of Patent No. 5,285,711, issued to Dr. Albert E. Sanderson of Inventronics, Inc., and other patents pending. INPUT-OUTPUT JACKS There are six input-output jacks on the Accu-Tuner IV that increase the versatility of the Accu- Tuner for various purposes. -
Page 35: Battery Care
BATTERY CARE NICKEL-METAL HYDRIDE The battery used in the Sanderson Accu-Tuner IV, is a nickel-metal hydride (NiMH) battery. The new NiMH will run the Accu-Tuner for 60 to 80 hours, and can be recharged hundreds of times. To achieve the longest battery life we do recommend that the Accu-Tuner be used until the battery is below 20%. - Page 36 Page -1 EXAMINEE Examinee page Page -2 Points page Page -3 SUP1, SUP2, SUP3 or SUP4 Supertuning page Page -4 DIFFERENC Cents Difference page Page -5 UnTune Untuning page To score the PTG tuning exam, store the supertuning on the selected SUP page of the memory, and store the examinee's tuning on page EXAMINEE.
- Page 37 The examinee must state his choice of temperament octave. Set the NOTE and OCTAVE to the lowest note of that octave and store this choice by holding SHIFT 2 and pressing STO TMPT. S C O R I N G TH E TEM PE R AM EN T: To score the examinee's tuning, hold the SHIFT 2 and press the SCORE button.
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Page 38: Concise Step - By -Step Tables Of Standard Routines
Before the exam is given, the piano must be untuned by a standard amount as specified by the PTG Examination Manual. This is taken care of by page UnTune, which uses the supertuning page SUP to generate an untuned setting equal to the setting from page SUP plus or minus four times the tuning tolerance for that particular note. -
Page 39: Cents Tables For Non - Equal Temperaments
11. C ha ngi ng t he Pa rt ia l on a Pa ge of Memory : Press TUNE, then NOTE up or down to pitch of new partial, OCT up or down to pitch of new partial, CENTS up or down to pitch of new partial, SHIFT, and STO-MEM. You have stored one note at the new partial number, and may proceed with storing consecutive notes until the partial number changes again. -
Page 40: Cents Offset For H Z At A4
Va l l ott i or Fa i rc hi l d Tem pe rament (REF: Piano Technicians Journal, Oct. 82, p.20.) Steve Fairchild independently developed this temperament in 1982 while looking for a temperament to smooth out the simple keys on small pianos. It greatly reduces the harshness caused by excessive inharmonicity, and for that reason could also be called the "Piano Teacher's Delight"... -
Page 41: What Are Partials And Beats
irregularity in partial alignments occur in the 1st, 2nd, and 3rd partials, there may be some slight unevenness heard in the octave and 5ths. Now, by the simple practice of playing certain test intervals while tuning with the Stretch Calculator mode, one can have a double check on his aural test as well as assuring that the visual judgments are more accurate. -
Page 42: The Two -Octave "A" Temperament
tuned, on most pianos they will create a beat rate of approximately 7 beats per second. Let's say that the 4th partial of A3 reads +3.7 cents and the 5th partial of F3 reads -10 cents at the reference note of A5 (880 Hz). At A5, -10 cents is the same as G# +90 cents since we have 100 cents per half step. - Page 43 that mathematically fit this span perfectly, as determined by direct interval measurements. This leaves every fourth note tuned, and the three untuned notes within each major third are then tuned with fourths and thirds, again by direct interval measurements. Follow the step-by-step procedure below, and be sure to check all intervals aurally as you tune: S tep 1 .
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Page 44: Contiguous -Interval Tuning Tests For Electronic Piano Tuners
Aura l Tun i ng The two-octave "A" temperament may be tuned aurally with exactly the same note-tuning sequence. This makes it easy to check an electronic tuning aurally at every step--very helpful in avoiding errors. Aural tuners can study and possibly improve their tuning by using the Accu- Tuner to measure the width of tuned intervals after setting this two-octave temperament very carefully by ear. -
Page 45: Octave Tuning
Contiguous major thirds will beat in the ratio of four to five because the major third itself consists of two notes whose frequencies are in the ratio of four to five. Displacing any interval up the keyboard will speed it up theoretically in the ratio of the frequencies of the two root notes involved. -
Page 46: Sanderson Accu-Tuner ♦ Iv Specifications
Classification for each test so as to correctly interpret the findings and make the proper adjustments in tuning the octave. CL A S S A : Lower note is the reference note. If the beat rate between the test note and the upper note is too slow as compared to the beat rate of the test note and the reference note, raise the upper note . -
Page 47: Input/Output Jacks
±198.0 cents with ±0.005 cents accuracy throughout the scale. C AL I B R A TI O N A C C U R A C Y : Built-in 440.00 Hz crystal frequency standard for self-calibration, accurate to ±0.001 cents. D I S PL A Y S : Liquid crystal displays (LCD) for NOTE, OCTAVE and CENTS, Rotating light-emitting-diode (LED) display for continuous analog FLAT or SHARP tuning indicator. - Page 48 Accu-Tuner and is especially useful for chipping pianos. PI A N O L I B R A R I A N : An Inventronics program for storing and cataloging piano tunings for Windows based computers. PA TE NT S : U.S.
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