Method and device for reproducing a binaural output signal generated from a monaural input signal

A reappearing of dual-channel output signal method and device for single channel input signal is a

technical field

The invention relates to a method for reappearing of; the dual-channel output signal method and one end of the first output signal and output signal of the single channel input signal is a composed of a method and device for carrying out to claim 1 or claim 8 front sequence part is.

background technology

The communication Today world more and a using such as PC or A in aggregate of intelligent data device for voice communication, wherein the connection of data device for example to achieve a VoIP.

The aid of VoIP the influence of grouping-based communication and the number so-called VoIP and use of decoder to make the voice quality which is prevent ingress. For example when the signal and anticipate medium according to high for time, thereby with an echo capable hear. When the connection happen to the communication of-based packet claim anticipate to that for time of the reflective compares unusually the natural environment tube; the light attenuation the natural environment is lower than. Therefore is for echo annihilator to stipulate of the data terminal device for suppressing interference echo measuring.

The annihilator echo follows such as ITU-T G.168 (2002) universal Biao Standard, and further connected through the series telephone discussed network gateway of a. A consider ITU-T in aggregate of VoIP the terminal device G.165 polymeric (1993), a provided with a suppression of the echo dispersing and achieves treated of the is through a serial telephone's Biao Zhunchu to determine obviously a temperate more than stipulation to the ACK/NAK.

A are downward and VoIP terminal device and data terminal waterproof device; and data terminal device with bumps VoIP terminal device when the signal and phase echo annihilator with high for time shortcoming. Transformer based on lacking echo annihilator based on grouping the type of the comm component is interchangeable headphone (Headset).

Further connected on the dual-view series sound rails earphone to generate unnatural listening event (Hoerereignis), wherein the frame is longer affected is a sound head and external lead sound. Surface when listening binaural receiving the sound source signal, so for time delay layer and band difference with the space to listen to the sensor. Is propped to the inspection of sense of the pores; the middle terminal for time and band difference layer is only outer surface of the head layer plane of symmetrical, set according here can determine sound direction of the support. A frame epoch same or layer difference of the head vertical plane of symmetrical, which can here by sound difference determine sound sense of direction of the support. Three-dimensional aid of the separated from the containing line and different sound source (Blauert compares, Jens (Junl1997): Space, Hearing MIT Press, Kap.5.3) and light sensing to suppressor (Blauert, Jens Junl (1997): Hearing Space, MITPress, Kap.5.4) is decisive. Wherein the sound source for applying the earphone is arranged on the right by, therefore forbids the three-dimensional to listen. The namely the right receiving the speaker is signal, and left and without receiving the left speaker signal.

invention content

Therefore the duty of the invention, wherein midspan as follows for reappearing of the output signal a method and a device for single channel input signal is a, improving quality of the single channel VoIP voice connection drawing support from the interchangeable headphone is implemented as.

The device for or a to claim 8 of the duty through to claim 1 solved.

The duty to solve by the method according to the invention, apparatuses, dual-channel output signal of the first output signal and output signal of the single channel input signal is a composed of at least one aims at the VoIP using the method of especially dual-channel of interchangeable headphone first and second loudspeaker reappears. The case is generated by phase-shift amplifying and/or the vibration amplitude and from the single channel input signal simulation the first output signal and/or the second output signal of dual-channel, to obtain description sound event subjective and static and/or the dynamic listening event.

Region in the duty to solve through a device, aimed at the using VoIP dual-channel interchangeable headphone with the device is especially for outputting from, thereby dual-channel output signal at least one of the first output signal and output signal of the single channel input signal is a are composed first and second loudspeaker and a receiving end of the connection of data terminal device. The signal processing apparatus generated by phase-shift and/or the vibration amplitude and a single channel input signal and/or the second output signal of dual-channel is a first output signal, remote to obtain description sound event subjective and static and/or the dynamic listening event.

Key point of the invention, listening duplexer according to track-based the analogue freely achieves a space; and a earphone and a and can naturally receiving.

A supporting a phase in, a travelling time of attenuation, and/or a HRTF (and related transfer function) is processing unit artificial voice surface manner, wherein free area; and an ear one, or based on phase difference and time delay layer and band difference with function auditory the transmission body is natural listening. Based on the simulation is in compression; the diameter of reflecting and a body, for of the sound quality colour or an echo, the appearance of said reflected and in addition relied is arranged on the multiple has a mental manipulation the experience and sensor. Therefore the cover board; the connection according with measurement can be easier to differentiate at different sound source sound event. Thereby improving listener's capability, and is opposite the supply the sound events a sound sources according felt stressed wherein an event. Therefore three-dimensional aid by the core, so as long happen to hears multiple coherent origins the sounds of from different directions, may use first effect, comprising a first wavefront method. Hereafter the sound event and a single came from the single direction, it is an echo.

To the stipulated the first is the capacitor of the single channel input signal is transmitted by application VoIP emitting end and/or a receiving end data terminal device. With a power supply, solution is a sound event for receiving end data terminal device is a - introduces a sound event for transmitting the data terminal device is a dual-channel simulation. When listening surface of the hear and three-dimensional sound event the thereof, sound set according to the sound source, and invention refers the signal demarcation line is in.

Stipulated advantageously of the phase-shift simulation a first sub-function emitting end of the data terminal device of the sound event static position of making. Therefore generated by a first output signal of the delay of the input signal emitting end data terminal device is transmitted or and counter-number mark point and first output signal and first loudspeaker. Solution of the is connected with the reproduction input signal of dynamically switching the second output signal and having to the second loudspeaker. Is composed of the substrates a step wherein the achieves on a sound event static position of the emitting end data terminal device is a a second loudspeaker. Embodiments based on phase-shift and a voltage the two output signals' different for time here advantageously for generating three-dimensional wherein the first part of event.

Used in the second sub-function in one embodiment line is a sound event dynamic position of the emitting end data terminal device for. Therefore first is completed of the input signal of the emitting end data terminal device for transmitting and compares from the single channel input signal middle layer for receiving end data terminal device is transmitted. Is retarded of the input signal of the emitting end data terminal device, a to generate the first signal output by the same. The second delay of the input signal transmitting the second output signal. The first output signal of the first loudspeaker, the second output signal of transported to the second loudspeaker. Thereby of substrates a step wherein the achieves on a sound event dynamic position of emitting end data terminal device is a width of the loudspeaker, the corresponding output signal first achieves the loudspeaker based on different for time. Embodiments based on phase-shift and the connecting two output signals' different for times of the left sound event dynamic position advantageously for generating three-dimensional wherein the part of event.

Here of the electrostatic and position of the receiving end data terminal device or a receiving end user angle invention adopts the core of sense of direction of the. The other testing; the sound event of core, and generating from multiple direction. A remote the static position; the sound then transmits to completes, a listening event of the sound with a “non-movement of the emitting end and receiving. Motion emitting end of the analogue of user of wherein the position on the top. To the processing the audio, transmitting user terminal turn-out is used for. The manual voice event static position and artificial voice event dynamic position therefore is a listening experience in a condition of audio transmission simulation is natural listening.

Optimized is used in the third sub-function a sound event static position of the receiving end data terminal device for. Therefore is completed of the delay of single channel input signal receiving end data terminal device, transmitted to the input signal and first output signal reproduction. Pulse is not end of the input signal, and input signal and second output signal of. The first output signal wires and second loudspeaker, and second output signal of transported to the first loudspeaker. For from the realizing static position; the substrates a step shape is further a sound event for receiving end data terminal device is a on the first loudspeaker.

The expectation to here suggested with for reflecting of one same and a through the series telephone invention claims a detail. The see is also of ITU-T G.131 (1996) or ITU-T G.111 (1993) to A, the keyword is STMR (Sidetone masking rank, wherein Sidetone Side (MaskingRating Tong, Talkers's) Sidetone).

Pulse is used advantageously a sound event static position and a sound event static position of the emitting end data terminal device with the receiving end data terminal device is a. In corresponding to the first joint and third sub-function. Terminal device the sound of arrival two participation voice biographies wherein the output of from different directions is a comprises receiving party terminal device echo. Achieves with a sound the enhanced of the the first receiving end data terminal device with. Hereafter as the root of digital 1 to the Blauert so-called echo threshold value. The see is in aggregate of terminal device of the amplifying ITU-T G.131 shape of 3.13. The RF TELR obviously (an echo the volume rank (Talker Echo Loudness Rating))On the gain of.

The solution of the invention stipulated the other embodiments of capacitor according with is used by sound event dynamic position and a sound event static position of the emitting end data terminal device with the receiving end data terminal device is a. In corresponding to the second combination of third sub-function. From different directions fixing advantageously thereby a sound event and sound event for echo and a sound event for receiving end data terminal device is for transmitting the data terminal device is a. From the body, an opposite from the echo diameter of the sound receiving end data terminal device and stressed for from the sound or from the sound for transmitting the data terminal device and receiving end data terminal device is at.

For a signal processing apparatus to construct the dual-channel interchangeable headphone the other preferably for capacitor, the signal processing device at least comprises a travelling time element. Hereafter above for time element having the same output signal phase-shift the invention. The polymeric or the additional signal processing device is installed at least attenuation element and/or at least HRTF (and related transfer function) is formed element. And the vibration amplitude and/or a sound difference of further of solution for phase-shift. A supporting to the advantageously element, and uses a unions of the element for applying duplex sound rails earphone by connecting element of especially can also of leads three-dimensional listening, for wherein by time passage waiting time delay, the strength difference and sound quality colour attribute naturally wherein.

The other characteristic and merits of this invention device obtain from the invention realizing and power.

Brief description for drawings

As follows as the invention according to the embodiment of auxiliary digital invention with the aid of a single accurately. The shell as follows: Digital 1 dialog a lug of the wire (to say echo tolerance wire Talker EchoTolerance Curves), a digital the capacitor of 2).

detailed description of illustrated embodiments

Digital 1 of the so-called to say echo tolerance curve shape; the wire and processing echo inference voice quality of discovery. Is the dialog according to the curve of access. By the time of the middle echo circumference of the abscissa (Averaging Echo Transmission Time T-SHAPED), and Y fitting is to say echo volume rank TELR. Wire K1 as the display threshold value (masking threshold value), K2 line fixing acceptable (Acceptable). The acceptable equivalent the wire, is composed of 1% probabilities the wire of interference echo. Wire K3 as condition edge (Limitingcase), reciprocal wire K4 as the stereo sound speaker is 80° when angle of duplex sound rails condition edge (Binaural Limiting) Box.

Where the invention the embodiment of function block diagram the digital 2. The shell of transmitting data terminal device of reference symbols B, and receiving end data terminal device using marks reference symbols A. Receiving end data terminal and A equips with duplex sound rails earphone ideally, wherein the earphone has a first L-SHAPED and speaker IS the once.

To the control signal flow, a signal processing apparatus 1) is arranged between are terminal device A and B the. The signal processing device 1 and embodiment capacitor with three function block F1, F2, and F3 layer processing unit PVE.

Function block F1, F2 and F3 at least one for time element are (is not shown). The polymeric or supplement function block F1, F2 and F3 can is further at least attenuation body and/or HRTF relay j1 and related transfer function) process element (not to show) is.

Function block F1 and a function F3 the embodiment connected with the other function, device and F2 function block F1 is parallel.

Is provided with a receiving terminal from emitting end data terminal device AND a voice connected with the data terminal device, A a support by VoIP switching network and connection.

Transmitting the data terminal device AND a tension 100) first function block F1 transmitting a single channel input signal. Pulse signal emitting end data terminal device AND a tension 101) and function F2 at the invention 102) is comparing unit PVE transmitting the single channel input signal.

Function block F1 retards the signal and receiving 200) function block F3 for transmitting the signal. With function of F1 41b2 the signal of a low-smoke switching on and step 201) transmission function block F3 the low-smoke signal of exchange similar. Wherein the pedal 101 is attached to the signal on the function F2 to suffer first to retard the function F2 block and step (300) function F3 block is transmitted along with the same. Meanwhile 101) is attached to the signal on the function F2 to suffer the same and step (301) function block F3 conductive along with the second delay wherein a separation.

Layer comparing unit PVE 102) is received in which a signal for transmitting the data terminal device AND transmitting. Meanwhile is attached to a receiving end of the signal of data terminal and A transmission layer comparing unit PVE; the signal 502) are in steps. The emitter of emitting end signal of data terminal device AND transmitting function of block F2 executing first and second same and relies on completes of data terminal and A and B transmission the middle layer of said signal.

Now originates from the invention claims 200 and 300 or the invention claims 201 and 301 signals is attached to the function F3. Of originates from the invention 501) are data terminal apparatus signal is attached to the function F3. Originates 200 and 300 signals of the free obstacle from the embodiment of transported and a function F3 block and 400 in order from the invention is first L-SHAPED loudspeaker. , And is attached to the signal on the function F3 the invention claims 201 and 301 are obtained is provided with an moreover processing terminal with function F3 block, which is 401 transported in order to the speaker IS. Based on first at the same time of sound event static position of emitting end data terminal device is THE sensing of substrates a step further provided with a second achieved loudspeaker R of the signal delay in function block F1 and F2 executing, a sound event dynamic position on the other side of the sensing emitting end data terminal and B of substrates a step wherein the achieves the same loudspeaker, and a loudspeaker with a signals at the same.

The function F3 retards the signal of claims 501 submits and having to the speaker IS. Meanwhile with function F3 block and first loudspeaker submits the signal space from obstacle of claims 501 to transmit. Therefore to the teeth; the substrates a step further of the first L-SHAPED loudspeaker sound a static event position of receiving end data terminal device is A sensing.

Finally receiving end data terminal and A 500 is not is seperately signal processing in order to receiving end data terminal AND device.

Separated from the single channel input signal here suggested method for obtaining method for using time difference with the dual-channel earphone according to imitating are naturally wherein three-dimensional possibly into aid. Sound listening surface of the sound colour cottons for time and band difference layer and copper and a plurality of different sound source production, therefore listening of three-dimensional and a imitate is made ideally from, two of with a travelling time band and with the difference of the colour.

The embodiment of said of and a signal processing block the function block for wherein the volume, which comprises a travelling time difference with from a single rails input signal, therefore phase difference. The possibly is polymeric, a attenuation element polymeric for time element. Simulation to the space to listen the; the space aid is realized by vibration amplitude amplifying or attenuation. Further possibly without installing HRTF (and related transfer function) is process element, to simulate head and lead, therefore the reversing of the ear. Further - simultaneously receiving the signal processing element function block F1 to F3, achieve such a provided with an upper layer results are naturally wherein.

Polymeric seat, which is not shown, a possibly of the light of function block F1 and F3. In corresponding to the embodiment of acting according to digital 2, where and which is made of function F2 block is single channel input signal of emitting end data terminal device AND is transmitted. And the signal in the receiving and a data terminal and A transmitting the condition of input signal of function F3 block, a transmission a speaker is L-SHAPED or R.

Is further provided, which is not shown similar; and light of function F2 block and F3. Digital according here invention 2 in of the further of the base, and removes function block F1. Transmitted by emitting end data terminal device AND transmission's single rails input signal here without to function block F2 or transmitted to the comparing unit PVE, a or R is a function F3 block is L-SHAPED and output signal of thereby obtaining. Automatically according to sub-function F3 to achieve the receiving end in function block F3 data terminal and A processing of single channel input signal.

The unions of two function blocks are described of the corrosion-resistant, and a switch featured with the bracket; the made of three-dimensional analogue considered are using range of interchangeable headphone adjusting.

The aid of the processing of form a single channel signal elements to generate a listen to the event similar; the listened to the part of the event at least reappeared naturally to listened. The wristband type earphone according therefore the application suggested body; the locating different sound source and suppressing diameter of reflecting board. The is natural wherein, wherein the imitate natural listening of people according according to imitating is connected to learn suppression of reflecting sensor is.

Each function is used as for time element and/or attenuation element and/or the HRTF processing unit is enabled with the space to listen to is into possibly, for example, wherein the corresponding plug is provided on the dipole the background noise is; and a wherein the sensor is enough.

Pointed of the position of the upper independent parts and each body, a detail is especially the auxiliary digital described substantively receive the requirement and invention. From the is familiar of the field a provide. To of the is used for processing and a symbol counter-number signals device can substitute for time of teeth or a delaying device.