Inventronics SANDERSON ACCU-TUNER Operating Manual Download

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SANDERSON

ACCU-TUNER

™

OPERATING MANUAL

INVENTRONICS,INC.

130 MIDDLESEX RD, SUITE 14

TYNGSBORO, MA 01879-2725

“www.Accu-Tuner.com”

[email protected]

1-800-FAST-440

OR (978)649-9040

Summary of Contents for SANDERSON ACCU-TUNER

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 OR 978 649 9040...

Page 2: ...RICK BALDASSIN JAMES W COLEMAN SR ROBERT CONRAD THIS MANUAL IS COPYRIGHTED ALL RIGHTS ARE RESERVED THIS DOCUMENT MAY NOT IN WHOLE OR PART BE COPIED PHOTOCOPIED REPRODUCED OR TRANSLATED WITHOUT PRIOR C...

Page 3: ...11 PAGE NUMBER DISPLAY 11 STORING AN AURAL TUNING IN MEMORY 11 STORING A TUNING IN MEMORY FROM A PRINTOUT 12 UP OR DOWN MEMORY STORAGE 12 MEMORY STORAGE WITH THE FOOT SWITCH 12 UP OR DOWN FOOTSWITCH...

Page 4: ...OUS INTERVAL TUNING TESTS FOR ELECTRONIC PIANO TUNERS APPENDIX G 22 OCTAVE TUNING APPENDIX H 23 DUAL SYSTEMS FOR SMOOTHING OUT THE STRINGING BREAK SPECIFICATIONS 24 INPUT OUTPUT JACKS 24 ACCESSORIES 2...

Page 5: ...of LCD liquid crystal display windows as NOTE OCTAVE and CENTS Fig 1 shows the SAT set for the note A in the fourth octave 0 0 cents Fig 1 Sanderson Accu Tuner II The pitch difference between the SAT...

Page 6: ...n is rotating use the cents buttons to slow the pattern down until the display rotates as slowly as possible When you press the TUNE button the calibration setting will be stored to memory and the dis...

Page 7: ...he pitch settings from A4 zero cents use the set of white buttons in the center of the SAT keyboard To go up in the note setting press the NOTE up button top row Watch the display until it steps to th...

Page 8: ...ro cents tune one string of A4 to stop the lights Now go up one octave on the SAT to A6 play A4 again and stop the lights with the CENTS buttons The CENTS window now reads the A4 stretch number the di...

Page 9: ...u must be on A6 and to store a C6 stretch number you must be on C7 In other words you must be on the correct note in order to store a stretch number This requirement reduces the possibilities for erro...

Page 10: ...atched They are on most notes The fact that some strings are mismatched makes it extremely important for the tuner to check all unisons aurally when they have been tuned with the SAT However do not tr...

Page 11: ...red in the MEM mode is different from that of both other modes It includes just the 88 notes on a standard piano known to the SAT as A0 through C8 Notice that although the three notes in octave zero c...

Page 12: ...T calculates 10 cents but you think 8 cents is better just enter 2 cents and store this offset Hold SHIFT and press RST button The net offset will be 8 cents Usually it will not be worth the trouble t...

Page 13: ...ory and tune the piano knowing that A4 will wind up exactly on A 440 If you want to save this tuning permanently at 440 Hz store the FAC tuning again STRETCH roll over to MEM The offset will be includ...

Page 14: ...o record the note A0 on the piano 4 Now measure the pitch of the note on the piano by playing the note on the piano and using MEASURE and CENTS buttons to stop the lights 5 Pressing the MEMORY button...

Page 15: ...ese points press the TUNE button and then enter the correct the partial and the cents deviation using the OCTAVE NOTE and CENTS buttons Then double check as in steps 3 4 by alternating between MEM and...

Page 16: ...page On each page press NOTE down to see the serial number and then press SHIFT PAGE up to go to the next page Alternate between NOTE down and SHIFT PAGE up until the desired serial number is found Th...

Page 17: ...the double octave which gives a considerably sharper top end or the octave fifth which is even sharper The choice is up to you and your customer TUNING THE BASS WITHOUT FAC Tuning the bass is similar...

Page 18: ...ubminiature telephone jack that accommodates the foot switch or thumb switch which is used for stepping up down the NOTE settings one semitone at a time A foot switch is supplied as standard equipment...

Page 19: ...CAL release CAL release SHIFT CENTS up or down to stop lights TUNE CENTS up or down to required offset i e 8 0 cents 442 4 0 cents per Hertz SHIFT RST release RST release SHIFT Your instrument is set...

Page 20: ...1 A 0 0 C 2 0 F 9 8 A 7 8 D 3 9 F 0 0 B 3 9 D 5 9 G 7 8 C 11 7 E 2 0 G 3 9 Kirnberger III Corrected Temperament A 0 0 C 2 0 F 9 8 A 7 8 D 3 9 F 2 0 B 0 0 D 5 9 G 7 8 C 11 7 E 2 0 G 3 9 Young s Tempera...

Page 21: ...James Coleman F A temp and Mark Peele 10th temp These may be seen demonstrated at various Piano Technician s Guild Institutes Conferences and Seminars Since the Stretch Calculator tunings involve the...

Page 22: ...er cents dev 1200 The reference note frequency can be found in charts but it is so easy to calculate using the 1 12 root of 2 which is the half step ratio If we need to know the Hz of C5 we merely mul...

Page 23: ...this amount E g if double octave is 5 5 cents wide 5 5 4 is 1 5 divide by 3 and narrow both octaves 5 cent Step 3 Tune three major thirds of equal cents width between A2 and A3 You must first guess h...

Page 24: ...eats of the upper one This test then does not require knowledge of beats per second only a good sense of rhythm or tempo In this case C 3 and F3 are correctly tuned when 4 beats of A2 C 3 occur at the...

Page 25: ...ge of this contiguous interval test is at least from C3 to C5 a two octave span After tuning the whole piano unisons and all start applying this test at C3 Move up one semitone at a time and correct a...

Page 26: ...to any smooth curve pattern the major 3rds based on F3 and F 3 will beat faster than normal and the major 3rds based on G3 G 3 and A3 will beat slower than usual This is due to the differential of in...

Page 27: ...etween F 3 and G3 you could take the usual FAC measurements and store on page 1 then take a measurement on G3 the lowest plain string and transfer that reading to F6 in order to compute and store on p...

Page 28: ...aches to the plate of the piano and picks up the signal directly from the strings without interference from room noise SPEAKER AMPLIFIER The speaker amplifier allows the user to listen to the tone ins...

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