DE2140933C - Method for increasing the sound abundance of tones or tone mixtures and circuit arrangement for carrying out this method - Google Patents

Description

«Endig · ^Qle uiN ^ iuiigm-iic iiiitiiiiiaiitin uurcn eieicnc. part. aeren tiiii / auiciiuii =. , - ^ - - ^ n ^; c'it

^ n so-called information gain, to be added. of the respective frequencies, but aiext.n. .

Ss happens with the tape device by te-lwe ^ e 3 is proportional. The cyclical re-loluiüt

Iat full double sampling. Will daeeaen the Sienal pass through the PhasendrengiiiaerKeiu. .

0 ° ^ci . · I .., Urf "_ n:" i "_" - "i: _i o ,, f oini» Rirhtuns determined. Ui-I

Qjjer complete printing. On the other hand, the Operation carried out in the opposite direction, mim speaks of a loss of information, which in the case of the tape recorder due to non-suture · of filing the information comes about.

The above method, which works according to the Tnnbandpnnzip, has i-doci for the application area treated here d-jr signal frequency change for the increase of sound ^{filling em> l:} - the disadvantages include H: rsU

bienaiaurcinaui uun_i> u «. . - · _

essentially set in one direction. The return takes place - again cyclically - through continuous Alignment of the signal phases according to d «.m ίο Passing through to the Sianal phases at input J «™ jsendreheliederkette with simultaneous new beginning d, s Signal passage through the chain of phase drivers

Drawing are circuit arrangements for

njschen organ. au ^c . ^t .m- ·, is immediately understandable by the fact that for a /. B 1 Oregistrige 'electronic .'- "" gel ten such devices are required

TÜnächst "will close. H ^ RSU ¹ -ngsaufwänd" and "interference _lg 15 performing this process in several heiäsiligkeit its Verwes.. Z. B. in an electronic game as selected embodiments scnaltNiü-

• ■ - ■ - H - H illustrated. It shows

1 shows an embodiment with a chain tcsur

_ .... Pha ^ end rotating links. . ,

the. Then, in this method, each individual 20 Fig. 2 is an S-shaped chain with, however, cyclic

u-hwingune changed by the dike factor. Changing phases, hghedern. · ■ ,,

£ S would e.g. B. fine Soktavigcn keyboard of the F i g. 3 two links of a phase rotation chain according to

The tone of the highest key float 32 times as fast Fi 2. 1, ",,

is the tone of the lowest key. But it is known. Fig. 4 is a vector image to show the tr.-

Gass with mechanical instruments, the encryption * ₅ quenzabhängigen change of Phasenwinwcis

Ratio of Schweouneen in the high notes iu a phase rotation chain according to Fig. 3. p:, 1

The beating of the low tones is essential. Fig. 5 shows an embodiment anniioi *! = ■ · - ·

However ^fle inzei- with reversed phase shift of the 1

sliedcr

FiR 6 with two links of a phase rotation chain cyclically changing phasers according to

Fi "^ and

Fi α 7 an example of a representation of the mutual ^ Interaction between delay cycle and reset. ...., "..

When in Fig. 1 w, Eder given embodiment is to phase shift of the chain in e.ne semer frequency to be changed Signalanteiis 5 _£ solid

votfianaenen riiaxeiivciMJiiicucimciicn iuubscii phase rotating elements P _x ■ ■ ■! '" provided, whose γ · ¹¹ ·'" are continuously equalized so that no _{40 gears are repeated} cyclically and are (audible) phase jumps that are scanned Beep

D ^; e frequency-related change of the sound image sequences are here by a ^z y ^kllsCl H., rf ™ -der according to the method "phase modulus repeating chain of counting pulses according to a ki'tion in which all frequencies float the same." light cycle continuously from the Outputs still according to the method of frequency _{modula- 45 of} the individual phase rotators at the Mgnaiaus tion, in which all frequencies are switched around the same gear. .. ", - · 11 ct ^ hi ms

Factor are changed, take place. special; The formwork structure according to V 1 g. I lusieni . ι

by means of a modulation, which between these "phase shifting elements (P, _{... P n} ) and from a / -J

chain Z with π switch positions. Only one switching position is continuously actuated, namely from Z ₁ to Z _n and from Z _n directly to Z ₁ . The individual impulses of the counting chain control continuously «. Chain of variable resistors K _1. , ... «," · through

•! St.

U ^, the invention is now based on the object of designing the method of the type mentioned at the beginning to increase the fullness of the sound in such a way that the following requirements are met at the same time:

1 The procedure must contain genuine information or cause a real loss of information.

9 Those through the gain or loss of information there must be phase differences at the respective joints

both types of modulation.

4. To further suppress the operation cycle should still have a certain statistical element regarding the change in the individual Frequencies exist.

5. There should only be insignificant distortions (low distortion factor).

6. There must be no amplitude modulation. The method must with a device Runaway _1,

which the respective output ·: of the individual transmitting rotating elements are connected to the signal output 5 _Λ , while the signal input .S 'is permanently connected to the input of the first phase rotating element. If a signal now runs through the chain of plias

7 The procedure must be carried out with a device _umtmauii

can be printed, the simple construction and drehglleder "'su''' is .w possible with only electrical components excluded _5o f _reque nzabnängige phase rotation Ivwirkl""ini" each Phasoidrehglieo. dere -Met " ^cpin " ⁿ "result over the time variabKt, \\ utcrstaiule X

... R _{111 to} the signal output S , / u ^ tulm is Dk via the resistor R _1. , To the output V, ge endpnase of a signal frennen / win! "> n '' ■ ' ' · 1. .11..1.

should be prepared.

Within the scope of the problem set out here, these requirements are satisfied by what is proposed according to the invention.

gcie method in that the frequency suiiaucit 1 ^ Hu ₁ - .. "- ~ _r

signal portion to be changed cyclically changing 65 of which through the resistor R, i_vsJi.ilieKu Phas'"is subjected to rotations and at the end signal phase by a maximum of IHO. in xi.iiixii-.Ju-n of each cycle its output phase to its input by 0 If in.m a phase is now continuously adjusted. That the fre-

um ü untercneiuirii. i "mh., ■

rapid phase rotation in the dludcrn / ·,

the loss of information per running cycle is not quite abrupt, but the cycle of rotation in the links P ₁ ... P ₁ , - takes place faster than in the advance, and that none is reduced or increased (depending on the sign) by the cyclic connection of S _A via R _vv to S ,, the amount of the phase adjustment of the output P ₁₁ follows. Then you see. that although the frequency changes to P ₁ - be proportional. If one assumes a preliminary phase rotation during the two phases of the operation, then the following apply. The same difference takes place, but that the number of transmission conditions for the informational oscillation periods obtained per unit of time is identical. with the number of oscillation periods at the input. The embodiment of FIG. 1 includes at S ₁ , is; So there is neither an irrational gain in all of the species-specific advantages, nor in this respect, however, nor a loss of information. If this is the case, then there is a technical deficiency, which is compulsory due to the elimination of one of the two opi'fution phase probing of the fixed phase rotations an information gain or loss of the outputs comes about and in the cause of the increase lies in the nature of the technical design Phase rotation chain reproduced as it is examined for an example. The conditions are suitable for the device according to Fig. I. Assuming the individual elements I each consist of a phase reversal stage with two . which exercises. a / «'member should be ten times that of the lowest. For explanation, the Si-nalfrequen / bet is in I-ig. 4 'project "vector image of this arrangement demonstrates you ·"> never nicdriMe Signalfrequcnz to n-.ndestcns two gegepphasigcn and niederohm.gcn Sparinungv: we at 3M,>, Sehwebuneen) currency; end one. ^Vckt ^ ^c "^ and 42 are connected by the voltage vector -.... ι ι,, 1 * Ten 44 (ohmic resistance) and 43! Capacitor) 'cycle. During the ohmic resistance, at j V the phase rotation the highest Signalfrcquenz ^ _{DFIM the} voltage vector 44 drops to ί always constant in each Phasendrehglicd 60 does not exceed _{b] eib changes sjch dcf fca? a21ljve} resistance of wr-s. otherwise already noticeable at the capacitor depending on the frequency and plituocnmodulatinn occurs _{so that the} ratio of the absolute values of the vectors is then the number of cyclically scanned 43 and 44. This changes - again fre-

IM , _ 30 depending on the number of teeth - the phase angle.

Pnasenure-r.sheoer _{Wi u} , "·> _{Since dll} . Spannuügsvcktoxen 43 and 44 are always perpendicular to each other, if the vectors are at a 41 and 42 independent of the load, if the vectors are in the form of FIG , the absolute fraction is reduced, since there ₄ values of the vectors 41, 42 and 45 are always the same as signal output, only the output of the last phase rotation speed P _n 35 is used regardless of the ratio of the vectors 43 and 44 by! d: e Phase rotation in the individual phases (cf. also the geometrical theorem of Thais), transmitting rotary members during the * - change cycle kjn - This ensures that the absolute values of the is continuously changed wich device is constant for the phase rotation of the hung and the absolute values of the signal vectors lying at the m of its frequency to be changed signal component S _F 40 input according to the amount entein a chain cyclically Isch changing Pfiasendrehträgercr speak From this it follows that an amplitude ^: / ', ... P _{n is} provided, which is not possible shortly before reaching its modulation of the signal. The continuously and for a short time each to the maximum change phase rotating members thus produced Veküberbriickt is and in this case their individual members at gates 45 may ert now in the already explained sequence of their respective Aniang "" recycled shalt. +5 _x across the variable resistors R the off Here, The single twist gears are fed in _{during cjr.es gear 4.}

Change / cycle slowly and efficiently at first - A reverse phase rotation of the individual links

borrowed up to a maximum value and then reached. if you have the bridging RC element

jbrupt returned to their original position. The replaced by an RL element or the control of the

Resetting of the single rotating element or the next parallel phase rotating element by the condenser

icrliche harmonization of the phase positions at the end and the sator decreasing voltage vector undertakes (Fig. 5).

At the beginning of the chain of phase rotation links, In F i g. 6 is a continuously changeable one

here by a continuous, short-term chain of rotating phase links, controlled by the

conclusion of the output and the input of the phase sawtooth control generator G and the vibration

drchkcttc causes. 55 value pulse generator /, reproduced. This cnt-

If in the example of the Fi g. 2 which speaks to the device already described according to FIG. 2.

F-sngang of the Ketle consisting of P ₁ ... P _n : The main features of this embodiment are the

Phasendrch jlkdern with a Ssgnaf beaufsernagi. so change the phascite rotors, soft instead of the

at Zc 1 Λ this signal with the same phase position of the fixed bridge resistor each has a variable resistance

appear atn exit. ^ Between time A and 60 there was R _x . included, its resistance value by

Ζ ·.-Ίΐ / ϊ wti. » tias signal at the output compared to the respective instantaneous voltage of a sawtooth

S; gnaJ L <ni i insane more or less often rotated curve is fixed, furthermore the variable resistance

to be available. This rotation begins after the R _lr , which connects the input with the output

Rin-killing anew. det when the sawtooth curve has a certain

I ^: m exceeds the threshold value caused during each change cycle and thus exceeds the threshold

icn information gain or loss of information to the value pulse generator, which in turn controls the connection

crkenncn. one can imagine that the backward resistance R,.,. makes low resistance.

Position of the PhascrMirchglicdcr on the linden of the Andean In Fig. 7 is another example of the opposite

milk no

change

iiisch igang: winn si, so bases crlusl

one ir cm licder ZWt ι limb [ the. The ungsekto-; ator) i. an istanl I des ι and gates ι fre-

Senors being ioluts,

ales).

e the Dre-

J "on the

every member of the ideng.5). bare the wellent- S-2. -gedes derby him-: and binitcn / cllbin-

»Cn interaction between delay cycle and reset shown schematically. According to the invention, the delay cycle is controlled here by the regression pulse. This is done in such a way that initially - /. B. at a ■ / fC element - an increase in the phase rotations ■ causing voltage V _v takes place. If this voltage reaches a predetermined threshold value, ^{the voltage J1} : (/ g, which causes the reset, rises (point in time Lj. After a likewise predetermined time LM , the voltage V _{1 is} brought back to 0 by the reset voltage U _{n, the} R. backwashing position U _H slowly drops (up to time / V), the voltage rise from V ₁ begins again. The variable resistances R _v and R _vv can be implemented in a simple manner by means of photoresistors illuminated at different times. This has the advantage the electrical isolation of the Stcuerungscinheit. Recently, however, were known developments in the Halbleitergcbict to produce variable Wcchsclstromwidersiande. these too could ti. lic here proposed circuits are inserted.

The circuit arrangement according to the invention can be used to increase the richness of sound by changing the frequency also use in electric musical instruments, especially in electronic organs. Here it can be an advantage to set aside

ίο and di'mit the start of a new cycle not automatically to make, but to the button connector » to tie and, if necessary, to the phase angling to waive in whole or in part during the provision. This way everyone jumps

J5 Key changes the voltage V _P more or more quickly back to 0, which causes a spitting effect in the tone response. The insertion into an electronic organ can take place per register, nro regulator group or per work.

1 sheet of drawings

3D9 635/424

Claims (1)

JL in contrast, changed electrical signals. the Claims: The invention also relates to a circuit arrangement to carry out this procedure. 1. Method for increasing the sonority of As is well known, the game z. B. a violinist Sounding or mixing sounds by mixing the 5 through an electroacoustic amplification system of theirs corresponding electrical signals with kind of amplification that it is in the volume of example of the frequency derived from the latter is reproduced by violinists without to changed electrical signals, so that the sonority of one violinist changes, characterized by the fact that in its will one against it in addition to the increase ier volume Frequency to be changed signal component cyclically το also increase the sonority, so would have to - in that subject to changing phase rotations given example - 3D Geiger at the same time and and at the end of each cycle its output will play the same note. The cause of this result phase As is well known, in its initial phase, continuous as well as increased sonority, lies in the underbalanced will. “The sound reproduction of every single violinist. 2. Circuit arrangement for the implementation of the! 5 In electroacoustic devices, dementing method according to claim 1, thereby marked the richness of tones or Tongemizeichnct that to phase rotation aes in his see only by increasing the signal component to be changed at this frequency (S ₁ ) an electrical signal corresponding to tones from the chain f ^ ter phase _{rotators (P, ... P n} ) presented derived signals / shuffles, which in their fre- --- see. whose outputs are one after the other and differ in frequency with respect to the original signals _: i are scanned in a cyclical repetitive manner (Fig. 1). are changed, so that in the relevant device - - 3. Circuit arrangement for the implementation of the changed frequency mixture in its individual frequencies Method according to claim 1, characterized by the individual frequencies of the original frequency _: draws that for the phase shift of the floating in its quenzgemisch different. Ξ; Frequency to be changed signal component (5,) a 25 on such a device consists in the electronic - Chain of cyclically changing phase rotating elements of musical instruments. Construction of considerable interest. It (P ₁ ... P _n ) is provided. just before reaching it is relatively easy, for example in their maximum change continuously and an electronic organ the different tones = - 'short-term'> t is bridged and hereby their single, multiple use, but it is with very large - individual members at their respective beginnings, which are worth costs, e.g. the large number of pipes ζ ¹ are fed back (F i · ». 2). a pipe organ by just as many - 4. Circuit arrangement according to claim 2, there- of independent electrical generators after- : marked by ;. aa £ form the solid phase rotations. Another interest for such a device elements each consists of a phase reversal stage for small orchestras (so-called bands). - stand, both outputs of which are connected to an RC or 35 soft, usually with electroacoustic amplifiers. - "_ RI.-GVied are bridged, on whose node systems are working - point between R and C or L towards zero, which increases the richness of sound in electroacoustic to be sampled output voltage (S _A ) occurs. Distribution systems interesting. 5. Circuit arrangement according to claim 3, there is known to be in musical instrument making characterized that the changeable 40 already additional device, which - usually with the help Phase rotator each from a phase of the double effect - a phase and / or fre- ■ An invertebrate stage, the two outputs of which are frequency modulated - the so-called vibrato - through the phase progression within a cycle. The disadvantage of these devices is that klus saw / similarly changing RC or RL- the respective phase or frequency changes "series link are bridged, at its node 45 according to a predetermined, always recurring point between R and C or L towards zero the rhythm, the so-called vibraio frequency. successful the subsequent phase shifting member aussteuierenden gene, whereby such additional devices for playback Voltage occurs. classical music, e.g. B. in an electronic 6. Circuit arrangement according to claim 5, there organ, are unsuitable. characterized by the fact that the cycle of saga 50 also already exists in the commu / 'jktro- tooth-like changing phase shift of the acoustics used devices for frequency t Zdtver- Phase rotary link chain passing signal change based on the principle of sound>. nddevice as a result of which the short-term bridging is built up, but the development is not is determined. through a fixed playback head, rather 7. Circuit arrangement according to one of the claims by means of four reproduction claims rotating on an axis 2 to 6 for use in electronic heads. This results in the frequency-changing musical instruments, characterized in that tion by the relative belt speed of the the beginning of a cycle in addition to or from playback at the original tape speed can finally be triggered by a keystroke. at the time of admission ("Electronic Rundschau". 60 No. 6 / l% 0, p. 225, Fig. 6). When making a such frequency or time change, depending on whether it should be positive or negative, the Achieving a gain in information or a loss of information is essential. If you move The invention relates to a method for increasing 65 namely a time-limited audio frequency oiler the sonority of tones or mixes of tones through a limited audio frequency mix according to the If you mix the corresponding electrical Si higher side, you have to run the belt faster gnale riit derived from the latter, let in their frequency. But this also means that the line of the