JPH04331996A - Test system for voice storage device - Google Patents

Abstract

PURPOSE:To offer the test system on which the normal operation of a transmission part and a reception part including reproducing operation for compressed voice data can be confirmed. CONSTITUTION:The voice storage device 1 which has the transmission part 3 and reception part 4 for voice data and a multifrequency signal reception part 6 consists of a 1st returning means which returns multifrequency signal information from the transmission part 3 to the reception part 4 and a 2nd returning part which returns the multifrequency signal information from the transmission part 3 to the multifrequency signal reception part 6. When a test is conducted, the multifrequency signal information which is sent out to the transmission part 3 and received by the reception part 4 through the 1st returning means is sent out again to the transmission part 3 and the 2nd returning means collates the signal received by the multifrequency reception part 6 with the multifrequency signal information which is sent initially.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a test method for an audio processing device using audio compression technology.

0002

2. Description of the Related Art Conventionally, audio information stored in an audio storage device has been compressed using audio compression technology in order to minimize the amount of information. That is,
The received audio data (PCM) is audio compressed (ADPCM) in the receiving section and stored in the audio memory, and when playing back, this compressed audio information is played back into regular audio data in the transmitting section. Sending.

[0003] When performing a normality test of the transmitting system/receiving system in this type of audio storage device, the transmitting section and the receiving section are connected back and it is checked whether the transmitted data can be received by the receiving section. It is sufficient to determine whether However, because audio compression technology is used, the contents of the transmitted data and received data do not match, making accurate confirmation impossible, and currently only determining whether a signal is being received or not. .

0004

[Problem to be solved by the invention] In the conventional test method,
This method simply connects the transmitting section and receiving section back and checking whether or not the transmitted data has been received, but it is not possible to check whether the transmitting section and receiving section operate normally including code conversion.

SUMMARY OF THE INVENTION The present invention has been made to solve this problem, and an object of the present invention is to provide a test method that can confirm the normal operation of a transmitting section and a receiving section, including the operation of reproducing compressed audio data.

[0006]

[Means for Solving the Problems] FIG. 1 is a diagram showing a test method for an audio storage device according to the present invention. In the figure, 2 is a multi-frequency signal information storage unit that stores multi-frequency signal information, 3 is a transmitting unit, 4 is a receiving unit, 5 is a multi-frequency signal information temporary storage unit, and 6 is a multi-frequency signal receiving unit. be.

[0007] The present invention provides an audio storage device 1 having an audio data transmitter 3 and a receiver 4, and a multifrequency signal receiver 6, in which the multifrequency signal information is looped back from the transmitter 3 to the receiver 4. a first folding means and the transmitter 3;
and a second return means for returning the multi-frequency signal information from the multi-frequency signal receiving section 6 to the multi-frequency signal receiving section 6.

At the time of testing, predetermined multifrequency signal information is sent to the sending section 3, received by the receiving section 4 by the first return means, and the received multifrequency signal information is sent again to the sending section 3. The second folding means compares the signal received by the multi-frequency signal receiving section 6 with the multi-frequency signal information sent out first.

Further, the multi-frequency signal information is information corresponding to numbers, and by specifying a predetermined number, the control section 7 of the audio storage device 1 transmits the multi-frequency signal information corresponding to the number. the first folding means;
By converting the specified number into the multifrequency signal information received by the multifrequency signal receiving section 6 via the second folding means, the control section 7 converts the specified number into the multifrequency signal information received by the multifrequency signal receiving section 6. Check to see if it has been received.

0010

[Operation] According to the present invention, the multi-frequency signal information to be transmitted is received back from the transmitting section 3 to the receiving section 4, the received signal is further transmitted to the transmitting section 3, and the result is received by the multi-frequency signal receiving section. Since the normality is determined by this, the normality of the system including the transmitting section, receiving section, and multi-frequency signal receiving section can be confirmed with one test operation.

[0011] Further, by specifying an arbitrary number by the control section of the audio storage device as the test data, it is sufficient to judge whether or not that number can be received in return, thereby simplifying the checking process of the control section.

0012

[Embodiment] An embodiment of a voice storage device 1 connected to a private branch exchange (hereinafter referred to as PBX) will be described with reference to FIGS. 2 and 3.

FIG. 2 is a diagram showing an embodiment according to the present invention, and FIG. 3 is a diagram showing the flow of device test data in FIG. 2 according to the embodiment according to the present invention. Both Figure 2 and Figure 3, Figure 1
Components corresponding to those shown in are indicated by the same reference numerals.

In the figure, 1 is an audio storage device, 2 is a multi-frequency signal information storage memory MM0, 3 is a transmitter, 4 is a receiver, 5 is a multi-frequency signal information temporary storage memory MM1, and 6 is a multi-frequency signal receiver. , 7 is a control unit MPU, 8 is a program storage memory MM, 9 is a DMAC (dynamic memory access controller), 10 is a first folding means setting register LOOP0, 11 is a second folding means setting register LOOP1, 12 is a register for setting a second folding means. a first folding means switching switch; 13 a second folding means switching switch;
14 is a processor bus.

The flow of the device testing method will be explained below. The control unit 7 sequentially performs the following operations periodically or by command activation. (1) First, the first loopback means setting register 10 is controlled to set the first loopback means for looping back from the transmitting section 3 to the receiving section 4 regarding multi-frequency signal information.

Next, the DMAC of the transmitter 3 is set to determine where and what information is to be transmitted. The settings include the address of the multifrequency signal information stored in the multifrequency signal information storage memory 1 as the start address, the number of bytes of the information to be transmitted, and the number of bytes of the information to be transmitted as the multifrequency signal information storage memory 1. Set the number of bytes to transfer multifrequency signal information.

Next, the DMAC of the receiving section 4 is set to determine where and how many bytes to store. The setting contents include, as the head address, the temporary reception information storage destination of the multifrequency signal information temporary storage memory 5 that temporarily stores multifrequency signal information and the number of transfer bytes of the multifrequency signal information to be stored. ■Next, the transmitting section 3 and the receiving section 4 are set as to where to send the multi-frequency signal information and where to receive it, and a transfer request (DREQ0) from the transmitting section 3 to the DMAC is made.
At each time, the multi-frequency signal information stored in the multi-frequency signal information storage memory 1 is transferred to the transmitter 3 by the number of transfer bytes. Since the multi-frequency signal information is ADPCM data in the transmitter 3, it is converted (expanded) into PCM data, passes through the first folding means via the switch 12, and is input to the receiver 4. (2) The receiving unit 4 converts (compresses) the received PCM data into ADPCM data, and issues a transfer request (DREQ1) to the DMAC to determine where to store the received data and to transfer it to the storage destination.

In response to a transfer request from the receiving section 4, the DMAC transfers received data to the multi-frequency signal information temporary storage memory 5 for each request. This operation is continued until the transmission of the multifrequency signal information is completed, and the end of the DMAC transfer is notified to the control unit 7 by a transfer end interrupt (IRQ0) from the DMAC. (2) Next, the first loopback means setting register 11 is controlled to set the second loopback means that is the loopback means from the transmitter 3 to the multifrequency signal receiver 6.

Next, where to send the stored information?
Also, the DMAC of the transmitter 3 is set to determine how many bytes to transmit. That is, the DMAC of the transmitter 3 sets the address of the multifrequency signal information stored in the multifrequency signal information temporary storage memory 5 as the start address and the number of bytes to transfer the information. ■■Next, set the transmitter 3 from where to transmit, and send a transfer request (DREQ0) to the DMAC from the transmitter 3.
At each time, the multifrequency signal information stored in the multifrequency signal information temporary storage memory 5 is transferred to the transmitter 3 by the number of transferred bytes. ■■ The ADPCM data is converted (expanded) into PCM data in the transmitter 3, and is inputted to the multi-frequency signal receiver 6 through the second folding means via the switch 13.

This operation is continued until the DMAC transfer is completed. (2) The end of the DMAC transfer is notified to the control unit 7 by a transfer end interrupt (IRQ0) from the DMAC. (10) When the multifrequency signal receiving section 6 detects multifrequency signal information, it notifies the control section 7 by interrupt (IRQ1), and the control section 7 reads the received multifrequency signal information code. (11) Control diagram 7 shows the presence or absence of an interrupt from multi-frequency signal information, and if there is an interrupt, the multi-frequency signal information from the multi-frequency signal information section 6 in section 9 and the multi-frequency signal transmitted from the transmitting section 3 in section 3. A comparison is made to see if the information matches the signal information.

[0021] If the multifrequency signal information from the multifrequency signal receiving unit 6 in item (2) is within the reception standard of the multifrequency signal receiving unit 6, it can be confirmed that it has been received normally. , it can be confirmed that if the multi-frequency signal information is outside the reception standard of the multi-frequency signal receiving section 6, it has not been received.

[0022] In the above test, the level of the multi-frequency signal information to be transmitted is further changed, the frequency of the multi-frequency signal information is changed, and the transmitted multi-frequency signal information and the received multi-frequency signal information are collated and compared. This allows for higher accuracy testing.

[0023]

[Effects of the Invention] As explained above, according to the present invention,
The audio data stored in the audio storage device is looped back from the transmitting unit to the receiving unit and received, and then the audio data is sent to the transmitting unit and received again by the multi-frequency signal receiving unit, thereby generating the audio to be transmitted first. By selecting one piece of numeric information as data and sending it, the control unit can confirm the normal operation by simply comparing the numeric information instructed at the time of sending and the received numeric information to find a match between the compressed numeric information and the received numeric information. The transmission section, reception section, and multi-frequency signal reception section including the audio data playback operation can be accurately checked, and the audio transmission/reception system can be easily tested with a single instruction operation.

[Brief explanation of drawings]

FIG. 1 is a diagram showing the principle of the present invention.

FIG. 2 is an embodiment of the audio storage device of the present invention.

FIG. 3 is a diagram showing the flow of device test data according to FIG. 2, an embodiment of the present invention.

[Explanation of symbols]

1. Audio storage device 2. Multi-frequency signal information storage unit. Multi-frequency signal information storage memory 3. Transmission unit 4. Receiving section 5. Multi-frequency signal information temporary storage unit. Multi-frequency signal information temporary storage memory 6. Multi-frequency signal receiving section 7. Control unit 8. Program storage memory9. DMAC 10. First loopback means setting register 11. Second loopback means setting register 12.13. Changeover switch 14. Processor bus 15. Private branch exchange16. telephone

Claims (2)

[Claims] Claim 1: Audio data transmitter (3) and receiver (4)
) and an audio storage device (
In 1), from the transmitter (3) to the receiver (4)
and a second folding means for folding back the multifrequency signal information from the transmitter (3) to the multifrequency signal receiver (6). , the predetermined multi-frequency signal information is sent to the sending unit (
3), and is received by the receiving section (4) by the first folding means, and the received multi-frequency signal information is sent again to the transmitting section (3), and by the second folding means. A test method for an audio storage device, characterized in that the signal received by the multi-frequency signal receiving section (6) is compared with the multi-frequency signal information sent out first. 2. The multi-frequency signal information is information corresponding to numbers, and by specifying a predetermined number, the control unit (7) of the audio storage device (1) can transmit the multi-frequency signal information corresponding to the number. Applying signal information to the transmitting section (3) and converting it into multi-frequency signal information to be received by the multi-frequency signal receiving section (6) via the first folding means and second folding means. A test method for an audio storage device, characterized in that the control section (7) checks whether the specified number is received by the multi-frequency signal reception section (6).