TWI603627B - Method and computer program product of processing voice segment and hearing aid - Google Patents

Description

Method for processing sound segments and computer program products and hearing aids

The present invention relates to a method of processing sound, a computer program product thereof and an electronic device, and more particularly to a method for processing a sound segment, a computer program product thereof and a hearing aid.

At present, the hardware architecture of some hearing aids is built on the Bluetooth headset, that is, the hearing aid can also be used as a Bluetooth headset. For example, when a hearing aid person uses a Bluetooth headset type hearing aid, he can use the hearing aid function when talking to others. Voice is transmitted to the hearing aid's microphone through the air. It can also be used as a Bluetooth headset when the phone is talking (the audio is transmitted to the hearing aid via Bluetooth wireless). However, if a normal hearing person borrows a Bluetooth headset with a hearing aid function from a hearing impaired person, because the sound is processed (usually with frequency reduction processing), the normal hearing person cannot hear the original normal sound, but hears the frequency reduction. The sound, so if a hearing aid can be applied to normal hearing and hearing impaired people is needed.

The primary object of the present invention is to provide a method of processing a sound segment.

Another main object of the present invention is to provide a computer program product and a hearing aid for processing a sound segment.

In order to achieve the above object, the present invention provides a method for processing a sound segment, which is applied to a hearing aid, the method comprising: receiving an input voice sound segment, the input voice sound segment being cut out by an input voice, the input voice sound The length of the segment is between 0.1 and 0.0001 seconds; determining whether the input speech sound segment is a high frequency consonant sound segment; if so, the high frequency sound region of one of the input speech sound segments is subjected to a down-conversion process to generate a drop a frequency sound zone; adding the down-converted sound zone to the input voice sound segment to generate an output sound segment such that the output sound segment includes the high-frequency sound region and the down-converted sound region; and outputting the output sound segment.

According to an embodiment of the invention, the input speech sound segment further includes a low frequency sound region, and some or all of the down frequency sound region overlaps the low frequency sound region.

According to an embodiment of the invention, the high frequency sound zone is at least 2500 Hz or more.

According to an embodiment of the invention, the down-converted sound zone is at least 16,000 Hz sound.

According to an embodiment of the invention, the input speech sound segment further includes a low frequency sound region, and some or all of the down frequency sound region overlaps the low frequency sound region.

In order to achieve the above another object, the present invention provides a hearing aid, comprising: a sound receiving module for receiving an input sound; and a sound processing module for cutting the input sound and receiving an input voice sound segment to determine Whether the input speech sound segment is a high frequency consonant sound segment, and if so, performing a down-conversion process on one of the input speech sound segments to generate a down-converted sound region, and adding the down-converted sound region to the The voice sound segment is input to generate an output sound segment such that the output sound segment includes the high frequency sound region and the down-converted sound region; and a sound broadcasting module outputs the output sound segment.

In order to enable the reviewing committee to better understand the technical contents of the present invention, the preferred embodiments are described below.

FIG. 1 is a hardware architecture diagram of the present invention. The hearing aid 10 of the present invention comprises a sound receiving module 11, a sound processing module 12 and a sounding module 13. The sound receiving module 11 is configured to receive the input sound 30, and after being processed by the sound processing module 12, the sound output module 40 broadcasts the output sound 40 to the hearing impaired person 81. The sound receiving module 11 can be any sound-receiving device such as a microphone. The sound-emitting module 13 (which can also have an amplifier) can be any audio-visual device such as a headphone, but the present invention is not limited to the devices listed above. The sound processing module 12 is generally composed of a sound processing chip matching control circuit and an amplifying circuit; and can also be a solution technology composed of a processor, a memory matching control circuit, and an amplifying circuit. The focus of the sound processing module 12 is to amplify the sound signal, filter the noise, change the sound frequency composition, and the processing required to achieve the object of the present invention. Since the sound processing module 12 can be matched with a new firmware or a new firmware or Software, so the hardware architecture of the sound processing module 12 will not be described again. The so-called hearing aid 10 of the present invention can be, for example, a special machine for tailoring hardware, or a small computer such as a PDA, a mobile phone, a hearing aid earphone (such as a Bluetooth earphone, a chip or processor for processing audio), or a smart phone. And the personal computer implements the present invention in a software program.

Referring next to Figure 2, there is shown a flow chart of the steps of the method of processing a sound segment of the present invention. Please refer to FIG. 3 to FIG. 7 together to understand the present invention.

Step 201: Receive an input voice sound segment 31.

The hearing aid 10 receives the input speech 30 through the sound receiving module 11, and the input speech 30 is cut by the sound processing module 12 into a plurality of input speech sound segments 31 (as shown in FIG. 3), and the length of each segment of the input speech sound segment 31 is recommended. Between 0.1 and 0.0001 seconds, depending on the needs of the processing. It should be noted that, according to the embodiment, the voice sound segment 31 is not cut and processed first, but is cut once and then processed in real time after a set length of time.

Step 202: Determine whether the input speech sound segment 31 is a high frequency consonant sound segment.

FIG. 4 is a schematic diagram of an input voice sound segment of the present invention. The input voice sound segment 31 is determined by the sound processing module 12 whether it is a high frequency consonant sound segment. There are many kinds of judgment methods, and the end of the target processing sound region, for example, one of the conventional judgment methods is: when a certain sound segment When the energy above 2500 Hz is at least 50% of the total energy of the sound segment, it is considered to be a high frequency sub-segment. The input speech sound segment 31, which is identified as a high frequency consonant, is divided into two blocks, a high frequency sound region 312 and a low frequency sound region 314, in preparation for the next processing step. According to the present embodiment, the sound higher than 8000 Hz is regarded as the high frequency sound region 312, and the low frequency sound region 314 is lower than 8000 Hz, but is not limited thereto, and the high frequency sound region 312 may be sound of at least 2500 Hz or more.

Step 203: Perform a down-conversion process on one of the high-frequency sound regions 312 of the input voice sound segment 31 to generate a down-converted sound region 313.

FIG. 5 is a schematic diagram of an embodiment of the present invention, which shows that a high frequency sound region is being subjected to frequency reduction processing, wherein the frequency reduction processing includes a frequency frequency processing. According to the embodiment, the high frequency sound region 312 is subjected to frequency reduction. A frequency-down sound zone 313 is generated, such that the frequency of the down-converted sound zone 313 is between 8000 Hz and 10000 Hz. According to another embodiment, reference may be made to the schematic diagram of FIG. 6, wherein the frequency-reduction process includes a frequency-frequency process and a frequency shifting process. After processing, the high frequency sound region 312 is subjected to compression and frequency shift to generate a down-converted sound region 313 and moved to between 6000 Hz and 8000 Hz.

Step 204: Add the down-converted sound region 313 to the input speech sound segment 31 to generate an output sound segment 41, such that the output sound segment 41 includes the high-frequency sound region 312 and the down-converted sound region 313.

After the input speech sound segment 31 has been processed, the high frequency sound region 312 is retained after the original high frequency sound region 312 is down-converted, and the down-converted sound region 313 is added to the input speech sound segment 31 to produce an output sound segment 41. Referring to FIG. 5 and FIG. 6 together, in the output sound segment 41 of the input speech sound segment 31 of FIG. 5, the down-converted sound region 313 is added to the input speech sound segment 31 and overlaps with the high-frequency sound region 312; FIG. In the output sound segment 41 in which the input speech sound segment 31 is down-converted, the down-converted sound region 313 is added to the input speech sound segment 31 and overlaps the low-frequency sound region 314.

The purpose of the down-conversion process is to lower or pull down the high-frequency sound that the hearing impaired person can't hear, so that the hearing-impaired person can hear it. Therefore, the frequency-reduced and frequency-shifted down-frequency sound zone 313 can be damaged according to hearing. The severity of the process is to perform different levels of down-conversion processing. It is recommended that the processed down-converted sound zone 313 be at least 16,000 Hz.

Step 205: Output the output sound segment 41.

Regardless of which embodiment of the previous step overlaps, the output includes a high frequency sound zone 312, a down frequency sound zone 313, and a low frequency sound zone 314. The output sound segment 41 is finally output by the broadcast module 13. As shown in FIG. 7 , this embodiment is an aspect for processing a voice segment in real time, and is quite suitable for a hearing aid. After the output sound segment 41 is processed and output, the judgment and processing of the next input voice sound segment 31 are performed, and so on.

It should be noted that the above is only an embodiment, and is not limited to the embodiment. For example, those who do not depart from the basic structure of the present invention should be bound by the scope of the patent, and the scope of the patent application shall prevail.

1‧‧‧ hearing aids
11‧‧‧Sound Receiver Module
12‧‧‧Sound Processing Module
13‧‧‧Broadcast module
30‧‧‧Input voice
31‧‧‧ Input voice sound segment
312‧‧‧High frequency sound zone
313‧‧‧Down frequency sound zone
314‧‧‧Low frequency sound zone
40‧‧‧ Output sound
41‧‧‧ Output sound segment Step 201‧‧‧ Receive an input voice sound segment 31
Step 202‧‧‧ Determine whether the input speech sound segment 31 is a high-frequency consonant sound segment. Step 203‧‧ ‧ perform a down-conversion process on the high-frequency sound region 312 of the input speech sound segment 31 to generate a down-converted sound Area 313
Step 204 ‧ ‧ the down-converted sound zone 313 is added to the input speech sound segment 31 to generate an output sound segment 41 such that the output sound segment 41 includes the high-frequency sound region 312 and the down-converted sound region 313
Step 205‧‧‧ output the output sound segment 41

1 is a hardware architecture diagram of the present invention. 2 is a flow chart showing the steps of a method of processing a sound segment of the present invention. Figure 3 is a schematic illustration of an input sound of the present invention. 4 is a schematic diagram of an input voice sound segment of the present invention. Figure 5 is a schematic illustration of an embodiment of the invention showing a high frequency sound zone being subjected to down-conversion processing. 6 is a schematic diagram of another embodiment of the present invention, showing that a high frequency sound zone is being subjected to frequency down and frequency shift processing. Figure 7 is a schematic representation of the invention.

Step 201 to step 205

Claims (10)

A method for processing a sound segment is applied to a hearing aid, the method comprising: receiving an input voice sound segment, the input voice sound segment being cut out by an input voice, the length of the input voice sound segment being 0.1 to 0.0001 seconds Determining whether the input speech sound segment is a high frequency consonant sound segment; if yes, performing a down-conversion process on the high frequency sound region of one of the input speech sound segments to generate a down-converted sound region; The zone joins the input voice sound segment to generate an output sound segment such that the output sound segment includes the high frequency sound region and the down-converted sound region; and outputs the output sound segment. The method of sound processing according to claim 1, wherein the input voice sound segment further comprises a low frequency sound zone, and part or all of the down sound zone overlaps the low frequency sound zone. The method of sound processing according to claim 2, wherein the high frequency sound region is at least 2500 Hz or more. The method of sound processing according to claim 3, wherein the down-converted sound zone is at least 16,000 Hz or less. The method of sound processing according to claim 4, wherein the input voice sound segment further comprises a low frequency sound zone, and part or all of the down sound zone overlaps the low frequency sound zone. A hearing aid comprises: a sound receiving module for receiving an input sound; a sound processing module, cutting the input sound and receiving an input voice sound segment, and determining whether the input voice sound segment is a high frequency consonant a sound segment, if yes, performing a down-conversion process on the high-frequency sound region of one of the input voice sound segments to generate a down-converted sound region, and adding the down-converted sound region to the input voice sound segment to generate an output sound segment, The output sound segment includes the high frequency sound region and the down frequency sound region; and a sound broadcasting module that outputs the output sound segment. The hearing aid of claim 6, wherein the input voice sound segment further comprises a low frequency sound zone, and part or all of the down sound zone overlaps the low frequency sound zone. The hearing aid of claim 7, wherein the high frequency sound zone is at least 2500 Hz or more. The hearing aid of claim 8, wherein the down-converted sound zone is at least 16,000 Hz or less. The hearing aid of claim 9, wherein the input voice sound segment further comprises a low frequency sound zone, and part or all of the down sound zone overlaps the low frequency sound zone.