JPS62180627A - Operating time rate measuring circuit for voice detector - Google Patents
Operating time rate measuring circuit for voice detectorInfo
- Publication number
- JPS62180627A JPS62180627A JP2115386A JP2115386A JPS62180627A JP S62180627 A JPS62180627 A JP S62180627A JP 2115386 A JP2115386 A JP 2115386A JP 2115386 A JP2115386 A JP 2115386A JP S62180627 A JPS62180627 A JP S62180627A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- operating time
- voice detector
- output
- time rate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000005259 measurement Methods 0.000 claims description 14
- 206010019133 Hangover Diseases 0.000 claims description 6
- 102100023116 Sodium/nucleoside cotransporter 1 Human genes 0.000 abstract 1
- 101710123675 Sodium/nucleoside cotransporter 1 Proteins 0.000 abstract 1
- 102100021541 Sodium/nucleoside cotransporter 2 Human genes 0.000 abstract 1
- 101710123669 Sodium/nucleoside cotransporter 2 Proteins 0.000 abstract 1
- 230000005236 sound signal Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
Landscapes
- Time-Division Multiplex Systems (AREA)
Abstract
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は音声検出器の特性測定回路に関し。[Detailed description of the invention] [Industrial application field] The present invention relates to a characteristic measuring circuit for a voice detector.
特に音声検出器が音声信号有りを示している時間的割合
を測定する動作時間率測定回路に関する。In particular, the present invention relates to an operating time rate measuring circuit that measures the time period during which a voice detector indicates the presence of a voice signal.
〔従来の技術〕 ・
上述の動作時間率の測定は、インテルサット仕様Ｄ Ｓ
Ｉ （Ｄｊ、ｇｉｔａｌ旦ｐｅｅｃｈ Ｉｎｔｅｒｐ
ｏｌａｔｉｏｎ；ディジタル音声挿入装置）などにも測
定項目として定められているが、その測定方法に関して
は明確な規定がなくあいまいである。このため、ＤＳＩ
装置に対する需要は年々急激に増加して行くにも拘らず
正確な動作時間率の測定を行なう回路は、従来、見あた
らない。[Prior art] - The measurement of the operating time rate described above is based on the Intelsat specification D S
I (Dj,Gitaldanpeech Interp
Although it is also defined as a measurement item in the field of digital audio insertion device, etc., there is no clear regulation regarding the measurement method and it is ambiguous. For this reason, DSI
Although the demand for devices is rapidly increasing year by year, no circuit has been found that accurately measures the operating time rate.
本発明の目的は、音声検出器の動作時間率を正確に測定
する測定回路を提供することにある。SUMMARY OF THE INVENTION An object of the present invention is to provide a measurement circuit that accurately measures the operating time rate of a voice detector.
本発明の音声検出器の動作時間率測定回路は。 The operating time rate measuring circuit for a voice detector according to the present invention is as follows.
音声検出器の出力が音声信号有りを示している時間的割
合を測定する音声検出器の動作時間率測定回路において
、ハングオーバー時間に比へ充分短かい周期のクロック
パルスを発生するクロックパルス発生回路と、該クロッ
クパルス発生回路の出力と前記音声検出器の出力との論
理積をとる論理積回路と、該論理積回路の出力を計数す
る第１の計数回路と、前記クロックパルス発生回路の出
力を計数する第２の計数回路と。A clock pulse generation circuit that generates clock pulses with a sufficiently short cycle compared to the hangover time in a voice detector operating time rate measurement circuit that measures the time ratio in which the output of the voice detector indicates the presence of a voice signal. an AND circuit that ANDs the output of the clock pulse generation circuit and the output of the audio detector; a first counting circuit that counts the output of the AND circuit; and an output of the clock pulse generation circuit. and a second counting circuit that counts.
前記第１及び第２の計数回路の計数値を入力とし、制御
信号に応じて前記第１の計数回路の計数値を第２の計数
回路の計数値で割り算して動作時間率を求める演算回路
と、前記第２の計数回路の計数値を人力とし、該第２の
計数回路の計数値が予め定められた値に一致した時点で
〆生成する制御回路とを有することを特徴とする。an arithmetic circuit that receives the count values of the first and second counting circuits as input and calculates an operating time rate by dividing the count value of the first counting circuit by the count value of the second counting circuit in accordance with a control signal; and a control circuit that manually generates the count value of the second counting circuit and generates a time limit when the count value of the second counting circuit matches a predetermined value.
なお、ハングオーバーとは、音声検出器の出力が音声信
号有りを知らせる状態がら音声信号無しを知らせる状態
に変化する時点で、前記音声検出器の出力に付加される
信号である。ハングオーバー時間とはこのハングオーバ
ーの時間長のことである。Note that the hangover is a signal added to the output of the audio detector at the time when the output of the audio detector changes from a state indicating the presence of an audio signal to a state indicating no audio signal. The hangover time is the length of time for this hangover.
まず１本発明の詳細な説明する。 First, the present invention will be explained in detail.
音声検出器の動作時間は、近似的に（１）式のように、
音声検出器の動作時間に発生するクロックパルスの発生
個数Ｃ！ＮＴ ｉとクロックパルスの周期Ｔｐとの積で
与えられる。The operating time of the voice detector is approximately as shown in equation (1),
Number of clock pulses generated during the operation time of the audio detector C! It is given by the product of NT i and the period Tp of the clock pulse.
Ｔａ ＝ ０ＮＴＩ Ｘ Ｔｐ（１）
また、測定時間Ｔｍの間に発生するクロックパルスの発
生個数を（：！ＮＴ２とすれば、測定時間Ｔｍは次式で
与えられる。Ta = 0NTI X Tp (1) Furthermore, if the number of clock pulses generated during the measurement time Tm is (:!NT2), the measurement time Tm is given by the following equation.
Ｔｍ ＝ ０ＮＴ２ Ｘ Ｔｌｌ （
２）ところで、音声検出器の動作時間率は動作時間を測
定時間で割り算した値と定義されるので。Tm = 0NT2 x Tll (
2) By the way, the operating time rate of a voice detector is defined as the value obtained by dividing the operating time by the measurement time.
（３）式で示される。It is shown by equation (3).
それ故、動作時間率は音声検出器の動作時間内に発生す
るクロックパルスの個数を測定時間内に発生するクロッ
クパルスで割り算した値で得られる。Therefore, the operating time rate is obtained by dividing the number of clock pulses that occur during the operating time of the audio detector by the clock pulses that occur during the measurement time.
次に本発明の実施例について図面を参照して説明する。 Next, embodiments of the present invention will be described with reference to the drawings.
第１図は本発明の一実施例を示す図であり。FIG. 1 is a diagram showing an embodiment of the present invention.
音声検出器１．クロックパルス・発生回路２．論理積回
路６．第１の計数回路４．第２の計数回路５．制御回路
６．演算回路７．から構成されている。Voice detector 1. Clock pulse/generation circuit 2. AND circuit 6. First counting circuit 4. Second counting circuit5. Control circuit 6. Arithmetic circuit 7. It consists of
音声検出器１では音声信号を検出すると、出力・を１に
設定し、音声信号有りを知らせる。他方、′音声信号を
検出できないと出力を０に設定し、音声信号無しを知ら
せる。すなわち、音声検出器１の出力は音声検出器が音
声信号有シを知らせている時間（動作時間）のみ１とな
っている。When the audio detector 1 detects an audio signal, it sets the output to 1 to notify that the audio signal is present. On the other hand, if no audio signal is detected, the output is set to 0 to notify that there is no audio signal. That is, the output of the audio detector 1 is 1 only during the time when the audio detector notifies the presence of an audio signal (operating time).
また、クロックパルス発生回路２ではハングオーバー時
間よりも充分短い周期（１ｍ５ｅｃ以下程度）のクロッ
クパルスを発生し、論理積回路６に出力している。Further, the clock pulse generation circuit 2 generates a clock pulse having a cycle sufficiently shorter than the hangover time (approximately 1 m5 ec or less), and outputs it to the AND circuit 6.
論理積回路６で、前述の音声検・用益の出力と前述のク
ロックパルス発生回路２より出力されるクロックパルス
との論理積をとる。論理積回路乙の出力では、音声：検
出器の動作時間のみ前述のクロックパルスが発生した波
形となっている。論理積回路乙の出力を第１の□計数回
路４に入力し、動作時間内に発生するクロックパルスの
発生個数を計数する。また、そ□の計数値は演算回路７
に出力する。An AND circuit 6 performs an AND operation between the output of the above-mentioned voice detection/usage and the clock pulse outputted from the clock pulse generation circuit 2 mentioned above. The output of the AND circuit B has a waveform generated by the aforementioned clock pulse only during the operation time of the audio detector. The output of the AND circuit B is input to the first □ counting circuit 4, and the number of clock pulses generated within the operating time is counted. Also, the count value of that □ is calculated by the arithmetic circuit 7.
Output to.
第２の計数回路５ではクロックパルス発生回路２から出
力されるクロックパル執の発生個数を計数し、後述する
制御回路６と演算回路７に出力する。The second counting circuit 5 counts the number of generated clock pulses output from the clock pulse generating circuit 2, and outputs the counted number to a control circuit 6 and an arithmetic circuit 7, which will be described later.
ところで制御回路６では第２の計数回路５の計数値を監
視しており、この値が予め定められた値に一致したなら
ば、すなわち、予め定められた測定時間経過したならば
、演算回路７に動作時間率を求める演算を実施させる制
御信号を出力する。By the way, the control circuit 6 monitors the count value of the second counting circuit 5, and if this value matches a predetermined value, that is, if a predetermined measurement time has elapsed, the arithmetic circuit 7 outputs a control signal that causes the controller to perform a calculation to determine the operating time rate.
演算回路７では、制御回路７から出力される制御信号が
演算実施を示している時に、第１の計数回路４の出力（
計数値）を第２の計数回路５の出力（計数値）で割り算
し、動作時間率を求め外部に出力する。In the arithmetic circuit 7, when the control signal output from the control circuit 7 indicates the execution of a calculation, the output (
(count value) is divided by the output (count value) of the second counting circuit 5 to obtain the operating time rate and output it to the outside.
以上説明したように本発明は、測定時間内に発生するク
ロックパルスの発生個数と、その測定時間内にある音声
検出器の動作時間内に発生するクロックパルスとを求め
、前者で後者を割り算することにより、音声検出器の動
作時間率を求めているので、簡単にかつ正確に動作時間
率が測定できる効果がある。As explained above, the present invention calculates the number of clock pulses generated within a measurement time and the clock pulses generated during the operation time of the audio detector within the measurement time, and divides the latter by the former. As a result, the operating time rate of the voice detector is determined, so there is an effect that the operating time rate can be measured easily and accurately.
また、前記クロックパルスの繰９返し周期を短かくすれ
ば、一定時間に発生するクロックツくルスの発生個数が
増加するので、測定精度がより正確になるという効果が
ある。Furthermore, if the repetition period of the clock pulse is shortened, the number of clock pulses that occur in a certain period of time increases, which has the effect of making the measurement accuracy more accurate.
第１図は本発明の一実施例による音声検出器の動作時間
率測定回路を示す図である。
１・・・音声検出器、２・・・クロックパルス発生回路
、ろ・・・論理積回路、４・・・第１の計数回路。
５・・・第２の計数回路、６・・・制御回路、７・・・
演算回路。FIG. 1 is a diagram showing a circuit for measuring the operating time rate of a voice detector according to an embodiment of the present invention. DESCRIPTION OF SYMBOLS 1... Audio detector, 2... Clock pulse generation circuit, RO... AND circuit, 4... First counting circuit. 5... Second counting circuit, 6... Control circuit, 7...
Arithmetic circuit.
Claims (1)
的割合を測定する音声検出器の動作時間率測定回路にお
いて、ハングオーバー時間に比べ充分短かい周期のクロ
ックパルスを発生するクロックパルス発生回路と、該ク
ロックパルス発生回路の出力と前記音声検出器の出力と
の論理積をとる論理積回路と、該論理積回路の出力を計
数する第１の計数回路と、前記クロックパルス発生回路
の出力を計数する第２の計数回路と、前記第１及び第２
の計数回路の計数値を入力とし、制御信号に応じて前記
第１の計数回路の計数値を第２の計数回路の計数値で割
り算して動作時間率を求める演算回路と、前記第２の計
数回路の計数値を入力とし、該第２の計数回路の計数値
が予め定められた値に一致した時点で前記制御 信号を生成する制御回路とを有することを特徴とする音
声検出器の動作時間率測定回路。[Claims] 1. In a voice detector operating time rate measurement circuit that measures the time rate in which the output of the voice detector indicates the presence of a voice signal, a clock pulse with a cycle sufficiently short compared to the hangover time is used. a clock pulse generation circuit that generates a clock pulse generation circuit, an AND circuit that takes an AND of the output of the clock pulse generation circuit and the output of the audio detector, and a first counting circuit that counts the output of the AND circuit; a second counting circuit that counts the output of the clock pulse generation circuit;
an arithmetic circuit that takes as input the count value of the first counting circuit and calculates the operating time rate by dividing the count value of the first counting circuit by the count value of the second counting circuit in accordance with a control signal; Operation of a voice detector characterized in that it has a control circuit that receives the count value of the counting circuit as an input and generates the control signal when the count value of the second counting circuit matches a predetermined value. Time rate measurement circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2115386A JPS62180627A (en) | 1986-02-04 | 1986-02-04 | Operating time rate measuring circuit for voice detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2115386A JPS62180627A (en) | 1986-02-04 | 1986-02-04 | Operating time rate measuring circuit for voice detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62180627A true JPS62180627A (en) | 1987-08-07 |
Family
ID=12046960
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2115386A Pending JPS62180627A (en) | 1986-02-04 | 1986-02-04 | Operating time rate measuring circuit for voice detector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62180627A (en) |
-
1986
- 1986-02-04 JP JP2115386A patent/JPS62180627A/en active Pending
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