JP2007251872A - Sound signal transmission system, and sound signal transmission method - Google Patents

Sound signal transmission system, and sound signal transmission method Download PDF

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JP2007251872A
JP2007251872A JP2006075920A JP2006075920A JP2007251872A JP 2007251872 A JP2007251872 A JP 2007251872A JP 2006075920 A JP2006075920 A JP 2006075920A JP 2006075920 A JP2006075920 A JP 2006075920A JP 2007251872 A JP2007251872 A JP 2007251872A
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side device
audio signal
transmission
signal transmission
receiving
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Yasumitsu Hamada
泰光 濱田
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Toshiba Corp
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Toshiba Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To attain the distribution of loading and space saving of a transmission-side device and to improve convenience in a reception-side device in a sound signal transmission system. <P>SOLUTION: The transmission-side device 1 and the reception-side device 2 are connected through one transmission path 3. Sound signals of two or more channels input to the transmission-side device 1 are multiplexed by a multiplexing part 12 and transmitted to the reception-side device 2. The reception-side device receives the multiplexed and transmitted sound signals through the transmission path 3, and makes a selection part 22 separate them to the respective channels, select an optional sound signal according to selection control of the sound signal from outside and output it. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

この発明は、複数チャンネルの音声信号を伝送する音声信号伝送システム及び音声信号伝送方法に関する。   The present invention relates to an audio signal transmission system and an audio signal transmission method for transmitting audio signals of a plurality of channels.

従来の音声信号伝送システムでは、送信側装置にスイッチャ装置を備え、多チャンネルの音声信号をすべてスイッチャ装置に入力し、出力系統に応じて出力していた。このため、送信側装置に負荷が集中し、送信側装置と受信側装置との間をチャンネル毎に敷線していたため、敷設された多数の回線により占有されるスペースも大きかった。
そこで、多チャンネルの音声信号と同期信号とを併せてケーブル1本で伝送する手法が提案されている(例えば、特許文献1を参照)。
特開平11−298999号公報
In the conventional audio signal transmission system, the transmission side device includes a switcher device, and all multi-channel audio signals are input to the switcher device and output according to the output system. For this reason, the load is concentrated on the transmission side device, and the transmission side device and the reception side device are laid for each channel, so that a large space is occupied by a large number of laid lines.
Therefore, a technique has been proposed in which a multi-channel audio signal and a synchronization signal are transmitted together with a single cable (for example, see Patent Document 1).
JP 11-298999 A

ところが、上記従来技術では、受信側装置の出力系統は予め決められており、任意のチャンネルの信号を出力することができない。   However, in the above-described prior art, the output system of the receiving side device is determined in advance, and a signal of an arbitrary channel cannot be output.

この発明は上記事情に着目してなされたもので、その目的とするところは、送信側装置の負荷の分散及び省スペース化を実現すると共に、受信側装置における利便性を向上する音声信号伝送システム及び音声信号伝送方法を提供することにある。   The present invention has been made paying attention to the above circumstances, and an object of the present invention is to realize an audio signal transmission system that realizes load distribution and space saving of the transmission side device and improves convenience in the reception side device. And providing an audio signal transmission method.

上記目的を達成するためにこの発明に係わる音声信号伝送システムは、送信側装置と、前記送信側装置と接続される1又は複数の受信側装置とを備える音声信号伝送システムであって、前記送信側装置は、AES(Audio Engineering Society)フォーマットの複数チャンネルの音声信号を入力する入力手段と、前記入力された複数チャンネルの音声信号を多重する多重化手段と、前記多重された音声信号を前記1又は複数の受信側装置に向け送信する送信手段とを具備し、前記1又は複数の受信側装置は、前記多重された音声信号を受信する受信手段と、前記受信された音声信号を分離して任意のチャンネルの音声信号を選択的に出力する選択手段とを具備することを特徴とする。   In order to achieve the above object, an audio signal transmission system according to the present invention is an audio signal transmission system comprising a transmission side device and one or a plurality of reception side devices connected to the transmission side device. The side apparatus comprises: input means for inputting audio signals of a plurality of channels in AES (Audio Engineering Society) format; multiplexing means for multiplexing the input audio signals of the plurality of channels; and Or transmitting means for transmitting to a plurality of receiving-side devices, wherein the one or more receiving-side devices separate the received sound signals from receiving means for receiving the multiplexed sound signals. Selecting means for selectively outputting an audio signal of an arbitrary channel.

また、この発明に係わる音声信号伝送方法は、送信側装置と、前記送信側装置と接続される1又は複数の受信側装置とを備える音声信号伝送システムで用いられ、前記送信側装置において、AESフォーマットの複数チャンネルの音声信号を入力し、前記入力された複数チャンネルの音声信号を多重し、前記多重された音声信号を前記1又は複数の受信側装置に向け送信し、前記1又は複数の受信側装置において、前記多重された音声信号を受信し、前記受信された音声信号を分離して任意のチャンネルの音声信号を選択的に出力することを特徴とする。   An audio signal transmission method according to the present invention is used in an audio signal transmission system including a transmission side device and one or more reception side devices connected to the transmission side device. Input a plurality of channels of audio signals in a format, multiplex the input multi-channel audio signals, transmit the multiplexed audio signals to the one or more receiving side devices, and receive the one or more receptions The side apparatus receives the multiplexed audio signal, separates the received audio signal, and selectively outputs an audio signal of an arbitrary channel.

上記構成による音声信号伝送システム及び音声信号伝送方法では、送信側装置に入力される複数チャンネルの音声信号を多重して受信側装置に伝送し、多重された音声信号を受信側装置で各チャンネルに分離し任意の音声信号を選択して出力可能にしている。このようにすることで、送信側装置の負荷を分散させることができ、障害が発生した場合の被害を抑えることができる。また、敷線を少なくすることで送信側装置の省スペース化を図ることが可能となる。   In the audio signal transmission system and the audio signal transmission method configured as described above, the audio signals of a plurality of channels input to the transmission side device are multiplexed and transmitted to the reception side device, and the multiplexed audio signal is transmitted to each channel by the reception side device. Separate audio signals can be selected and output. By doing so, it is possible to distribute the load on the transmission side device, and it is possible to suppress damage when a failure occurs. Further, it is possible to reduce the space of the transmission side device by reducing the number of laying lines.

したがってこの発明によれば、送信側装置の負荷の分散及び省スペース化を実現すると共に、受信側装置における利便性を向上する音声信号伝送システム及び音声信号伝送方法を提供することができる。   Therefore, according to the present invention, it is possible to provide an audio signal transmission system and an audio signal transmission method that can realize load distribution and space saving of the transmission side device and improve convenience in the reception side device.

以下、図面を参照しながら本発明の実施の形態を詳細に説明する。
図1は、この発明に係わる音声信号伝送システムの一実施形態を示すブロック図である。
この音声信号伝送システムは、送信側装置1と受信側装置2とを備え、これらが伝送路3を介して接続されて構成される。例えば、送信側装置1はマスタ送出側に設けられ、受信側装置2は各スタジオに設けられる。
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a block diagram showing an embodiment of an audio signal transmission system according to the present invention.
This audio signal transmission system includes a transmission side device 1 and a reception side device 2, which are connected via a transmission line 3. For example, the transmission side device 1 is provided on the master transmission side, and the reception side device 2 is provided in each studio.

送信側装置1は、音声入力I/F11−1〜nと、多重部12と、通信I/F13とを備える。音声入力I/F11−1〜nは、AESフォーマットの音声信号をそれぞれ入力する。多重部12は、上記音声入力I/F11−1〜nから入力される複数チャンネルの音声信号を順に時分割多重する。多重部12において多重された音声信号は、通信I/F3により伝送路3を介して受信側装置2に向け送信される。例えば、伝送路3に同軸ケーブルを用いて270Mbpsで高速伝送する。   The transmission side device 1 includes voice input I / Fs 11-1 to 11-n, a multiplexing unit 12, and a communication I / F 13. The audio input I / Fs 11-1 to 11-n input AES format audio signals, respectively. The multiplexing unit 12 sequentially time-division multiplexes the audio signals of a plurality of channels input from the audio input I / Fs 11-1 to 11-n. The audio signal multiplexed in the multiplexing unit 12 is transmitted to the receiving side device 2 via the transmission path 3 by the communication I / F 3. For example, high-speed transmission is performed at 270 Mbps using a coaxial cable for the transmission path 3.

一方、受信側装置2は、通信I/F21と、選択部22と、音声出力I/F23−1〜sとを備える。通信I/F21は、送信側装置1から伝送路3を介して到来する多重された音声信号を受信し、選択部22に入力する。多重された音声信号は選択部22において分離され、外部制御装置(図示せず)からの制御により選択される任意のチャンネルの音声信号を音声出力I/F23−1〜sに出力する。   On the other hand, the receiving-side device 2 includes a communication I / F 21, a selection unit 22, and audio output I / Fs 23-1 to 23-s. The communication I / F 21 receives a multiplexed audio signal that arrives from the transmission side device 1 via the transmission path 3 and inputs the received audio signal to the selection unit 22. The multiplexed audio signal is separated by the selection unit 22 and an audio signal of an arbitrary channel selected by control from an external control device (not shown) is output to the audio output I / Fs 23-1 to 23-s.

従来の音声信号伝送システムでは、送信側装置にスイッチャ装置を備え、入力された音声信号を切り替えてチャンネル毎に伝送路を介して受信側装置に送信していた。このため、送信側装置に大型のスイッチャ装置を設けるため負荷が集中していた。さらに、送信側装置と受信側装置との間をチャンネル毎に敷線していたため、敷設された多数の回線により占有されるスペースも大きかった。   In a conventional audio signal transmission system, a switcher device is provided on a transmission side device, and an input audio signal is switched and transmitted to a reception side device via a transmission path for each channel. For this reason, the load is concentrated because a large switcher device is provided in the transmission side device. In addition, since the transmission side device and the reception side device are laid for each channel, the space occupied by the laid many lines is large.

これに対し本発明では、送信側装置に入力される多チャンネルの音声信号を多重して受信側装置に伝送し、受信側装置で多重された音声信号を各チャンネルに分離し、任意の音声信号を選択して出力可能にしている。このようにすることで、送信側装置の負荷を分散させることができ、障害が発生した場合の被害を抑えることができる。また、送信側装置の省スペース化を図ることが可能となる。受信側装置においては、任意のチャンネルの音声信号を選択出力されるため、例えば音声編集の際の操作性が向上する。   On the other hand, in the present invention, a multi-channel audio signal input to the transmission side device is multiplexed and transmitted to the reception side device, and the audio signal multiplexed by the reception side device is separated into each channel, and an arbitrary audio signal is obtained. Select to enable output. By doing so, it is possible to distribute the load on the transmission side device, and it is possible to suppress damage when a failure occurs. In addition, it is possible to save the space on the transmission side device. In the receiving side apparatus, since an audio signal of an arbitrary channel is selectively output, operability at the time of audio editing, for example, is improved.

なお、この発明は、上記実施形態に限定されるものではない。上記実施形態では、送信側装置1と受信側装置2が1対1で接続される構成を例にとって説明したが、1つの送信側装置1に対し、複数の受信側装置2がそれぞれ伝送路3を介して接続される構成にすることももちろんできる。この場合、送信側装置1に集中する負荷を複数の受信側装置に分散することが可能となり、システムが大規模化した場合でも安定した運用が可能となる。   The present invention is not limited to the above embodiment. In the above-described embodiment, the configuration in which the transmission-side device 1 and the reception-side device 2 are connected on a one-to-one basis is described as an example. Of course, it is also possible to use a configuration in which the connection is made through the network. In this case, the load concentrated on the transmission side device 1 can be distributed to a plurality of reception side devices, and stable operation is possible even when the system is scaled up.

要するに、この発明は、上記実施形態そのままに限定されるものではなく、実施段階ではその要旨を逸脱しない範囲で構成要素を変形して具体化できる。また、上記実施形態に開示されている複数の構成要素の適宜な組み合せにより種々の発明を形成できる。例えば、実施形態に示される全構成要素から幾つかの構成要素を削除してもよい。さらに、異なる実施形態に亘る構成要素を適宜組み合せてもよい。   In short, the present invention is not limited to the above-described embodiment as it is, and can be embodied by modifying the constituent elements without departing from the scope of the invention in the implementation stage. In addition, various inventions can be formed by appropriately combining a plurality of constituent elements disclosed in the embodiment. For example, some components may be deleted from all the components shown in the embodiment. Furthermore, you may combine suitably the component covering different embodiment.

この発明に係わる音声信号伝送システムの一実施形態を示すブロック図。1 is a block diagram showing an embodiment of an audio signal transmission system according to the present invention.

符号の説明Explanation of symbols

1…送信側装置、11−1〜n…音声入力I/F、12…多重化部、13…通信I/F、2…受信側装置、21…通信I/F、22…選択部、23−1〜s…音声出力I/F、3…伝送路。   DESCRIPTION OF SYMBOLS 1 ... Transmission side apparatus, 11-1 to n ... Voice input I / F, 12 ... Multiplexing part, 13 ... Communication I / F, 2 ... Reception side apparatus, 21 ... Communication I / F, 22 ... Selection part, 23 −1 to s... Audio output I / F, 3.

Claims (2)

送信側装置と、前記送信側装置と接続される1又は複数の受信側装置とを備える音声信号伝送システムであって、
前記送信側装置は、
AES(Audio Engineering Society)フォーマットの複数チャンネルの音声信号を入力する入力手段と、
前記入力された複数チャンネルの音声信号を多重する多重化手段と、
前記多重された音声信号を前記1又は複数の受信側装置に向け送信する送信手段と
を具備し、
前記1又は複数の受信側装置は、
前記多重された音声信号を受信する受信手段と、
前記受信された音声信号を分離して任意のチャンネルの音声信号を選択的に出力する選択手段と
を具備することを特徴とする音声信号伝送システム。
An audio signal transmission system comprising a transmitting device and one or more receiving devices connected to the transmitting device,
The transmitting device is:
Input means for inputting audio signals of a plurality of channels in AES (Audio Engineering Society) format;
Multiplexing means for multiplexing the input audio signals of a plurality of channels;
Transmission means for transmitting the multiplexed audio signal to the one or more receiving side devices,
The one or more receiving side devices are:
Receiving means for receiving the multiplexed audio signal;
A voice signal transmission system comprising: selection means for selectively outputting a voice signal of an arbitrary channel by separating the received voice signal.
送信側装置と、前記送信側装置と接続される1又は複数の受信側装置とを備える音声信号伝送システムで用いられ、
前記送信側装置において、
AESフォーマットの複数チャンネルの音声信号を入力し、
前記入力された複数チャンネルの音声信号を多重し、
前記多重された音声信号を前記1又は複数の受信側装置に向け送信し、
前記1又は複数の受信側装置において、
前記多重された音声信号を受信し、
前記受信された音声信号を分離して任意のチャンネルの音声信号を選択的に出力することを特徴とする音声信号伝送方法。
Used in an audio signal transmission system comprising a transmitting device and one or more receiving devices connected to the transmitting device;
In the transmission side device,
Input audio signals of multiple channels in AES format,
Multiplex the input multi-channel audio signals,
Transmitting the multiplexed audio signal to the one or more receiving devices;
In the one or more receiving side devices,
Receiving the multiplexed audio signal;
A method of transmitting an audio signal, comprising: separating the received audio signal and selectively outputting an audio signal of an arbitrary channel.
JP2006075920A 2006-03-20 2006-03-20 Sound signal transmission system, and sound signal transmission method Pending JP2007251872A (en)

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