WO2006090934A1 - 音源供給装置及び音源供給方法 - Google Patents
音源供給装置及び音源供給方法 Download PDFInfo
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- WO2006090934A1 WO2006090934A1 PCT/JP2006/304224 JP2006304224W WO2006090934A1 WO 2006090934 A1 WO2006090934 A1 WO 2006090934A1 JP 2006304224 W JP2006304224 W JP 2006304224W WO 2006090934 A1 WO2006090934 A1 WO 2006090934A1
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- sound source
- processed
- original
- music
- noise
- Prior art date
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- 238000000034 method Methods 0.000 title claims description 69
- 230000015556 catabolic process Effects 0.000 claims abstract description 10
- 238000006731 degradation reaction Methods 0.000 claims abstract description 10
- 230000008569 process Effects 0.000 claims description 23
- 230000006866 deterioration Effects 0.000 claims description 20
- 230000004913 activation Effects 0.000 claims description 14
- 239000000654 additive Substances 0.000 claims description 2
- 230000000996 additive effect Effects 0.000 claims description 2
- 238000009825 accumulation Methods 0.000 abstract 1
- 230000006872 improvement Effects 0.000 description 21
- 230000005540 biological transmission Effects 0.000 description 10
- 238000010586 diagram Methods 0.000 description 6
- 238000011156 evaluation Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 230000001413 cellular effect Effects 0.000 description 4
- 238000001514 detection method Methods 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- ZYXYTGQFPZEUFX-UHFFFAOYSA-N benzpyrimoxan Chemical compound O1C(OCCC1)C=1C(=NC=NC=1)OCC1=CC=C(C=C1)C(F)(F)F ZYXYTGQFPZEUFX-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
- G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
- G10L19/16—Vocoder architecture
- G10L19/18—Vocoders using multiple modes
- G10L19/20—Vocoders using multiple modes using sound class specific coding, hybrid encoders or object based coding
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
- G10H1/00—Details of electrophonic musical instruments
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K15/00—Acoustics not otherwise provided for
- G10K15/02—Synthesis of acoustic waves
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/42—Systems providing special services or facilities to subscribers
- H04M3/42017—Customized ring-back tones
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
- G10H2240/00—Data organisation or data communication aspects, specifically adapted for electrophonic musical tools or instruments
- G10H2240/171—Transmission of musical instrument data, control or status information; Transmission, remote access or control of music data for electrophonic musical instruments
- G10H2240/201—Physical layer or hardware aspects of transmission to or from an electrophonic musical instrument, e.g. voltage levels, bit streams, code words or symbols over a physical link connecting network nodes or instruments
- G10H2240/241—Telephone transmission, i.e. using twisted pair telephone lines or any type of telephone network
- G10H2240/251—Mobile telephone transmission, i.e. transmitting, accessing or controlling music data wirelessly via a wireless or mobile telephone receiver, analog or digital, e.g. DECT GSM, UMTS
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
- H04M1/724—User interfaces specially adapted for cordless or mobile telephones
- H04M1/72403—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality
- H04M1/72442—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality for playing music files
Definitions
- the present invention stores music that can be heard via a mobile terminal as a sound source file, reproduces the sound source file, supplies it to the mobile terminal, and allows the music to be heard via the mobile terminal.
- the present invention relates to a sound source supply device and a sound source supply method.
- a ring back tone or a busy tone is stored as voice in a telephone exchange, and is stored in the calling side telephone.
- a telephone switching system that responds with the voice is disclosed.
- Japanese Laid-Open Patent Publication No. 3-19 16 45 discloses a telephone that outputs a detection result by voice when a ringback tone or a busy tone is detected.
- Japanese Patent Laid-Open No. 9 1 6 2 9 78 (Document 3), an audio / video message sent by a subscriber to a calling party is registered in advance in the exchange, and before the call is made to the subscriber, Alternatively, it is disclosed to send an image Z voice message to the caller during a call.
- Japanese Patent Publication No. 2 0 0 3-5 0 5 9 3 7 discloses a technique for sending commercial information in the form of voice / character Z images instead of ringback tones.
- References 1 to 4 are suitable for listening to music via a portable terminal having a codec.
- FIG. 1 shows a system including the current sound source supply device 10.
- the system shown in Fig. 1 consists of the current sound source supply device 10, the gateway switch (GS) 1 0 2, and the mobile switching center (MSC) 1 0 3 And a base station 10 4 and a mobile phone 1 0 5 as a mobile terminal.
- the mobile phone 10 5 is specifically a GSM (Global System for Mobile Communication) Terminal, and an RPE-LTP (Regular Pulse Excited-Long Term Prediction) code. It has an audio codec 1 0 6 named Deck.
- the gateway switch 1 0 2 and the mopile switching center 1 0 3 constitute an exchange network.
- the current sound source supply device 10 stores 128 kbit / sec WAV (Windows (registered trademark) standard audio file format also called WAVE) format sound source file (later called the original sound source file) 2 0 1
- WAV Windows (registered trademark) standard audio file format also called WAVE) format sound source file (later called the original sound source file) 2 0 1
- the sound source file 2 0 1 is sent out as a 64 kbit / sec ⁇ Law PC M (Pulse Code Modulation) signal or A Law PCM signal by the sound source and playback device 1 1. Since the gateway switch 1 0 2 and the mobile switching center 1 0 3 transmit the sound source file as they are at 64 kbit / sec, the gateway switch 1 0 2 and the mopile switching center 1 0 3 have no deterioration in the sound quality of the sound source file.
- Law PC M Pulse Code Modulation
- the same voice codec (RPE-LTP codec) 1 0 7 as that of the mobile phone 1 0 5 is converted into a radio signal.
- the base station 10 4 audio codec 1 0 7 converts PCM signals to GSM code signals
- the mobile phone 1 0 5 audio codec 1 0 6 converts GSM code signals to PCM. Convert to signal.
- the mobile phone 10 5 converts the PCM signal into an analog signal and listens to music from the speaker to the owner of the mobile phone. When talking, the direction of conversion is reversed.
- the mobile phone 1 0 5 converts the sound from the microphone into a PCM signal
- the audio codec 1 0 6 of the mobile phone 1 0 5 converts the PCM signal into a GSM code signal
- the base station 1 0 4 The audio codec 107 converts the GSM code signal into a PCM signal.
- the current sound source playback uses the codec 1 06, which has a narrow transmission band between the base station 10 4 and the mobile phone 1 0 5 and is specialized for voice, so the sound quality of music can be maintained. There is no problem.
- the prepared sound source file 2 0 1 is transferred to the mobile phone network Connected to the voice switch 10 2, mobile switching center 1 0 3 and base station 1 0 4 in voice mode (64 Kbit / s PCM).
- Mobile phones 10 5 especially narrow-band mobile phones, have a problem in that sound quality deterioration due to codec characteristics in the wireless section occurs, and music with good sound quality cannot be provided.
- the audio codec 1 0 6 used in the cellular phone 1 0 5 is designed to transmit only human speech even in a narrow band, and employs an encoding method specialized for human speech. Yes. On the other hand, music is thought to include parts such as white noise. Therefore, since music is not human speech, the waveform is suppressed and the sound quality deteriorates. Disclosure of the invention:
- the causes of sound quality degradation are as follows.
- the cause and state of deterioration differ depending on the codec type.
- the cause of deterioration in GSM is shown below.
- the corresponding frame is transferred as a SID (Silent Description) frame. This is because, for example, the noise due to the SID frame is passed through the silent section that exists after the voice of “Hello”, so that surrounding sounds, such as car sounds, are prevented from entering. If the music is determined not to be voice by VAD, the corresponding frame is transferred in the SID frame, so that loud noise caused by the SID frame is heard.
- the three codecs, Full rat, Half rate, and Enhanced full rate have different encoding methods, but the VAD logic is the same.
- the operation of the VAD is the main cause of sound quality degradation, and therefore it is intended to prevent the degradation by changing this operation.
- the purpose of the present invention is to analyze the sound and noise determination logic of the codec being used, and to process the original sound source so that it is not determined as noise, so that music with less deterioration in sound quality can be heard.
- An object is to provide a sound source supply apparatus and a sound source supply method.
- the sound source supply device according to the present invention and the sound source supply method according to the present invention are as follows.
- a sound source file storage device for storing in advance a plurality of types of processed sound source files created by processing the original sound source of the music so as to reduce deterioration in sound quality according to a plurality of types of codec characteristics
- a sound source supply apparatus comprising: a sound source reproduction apparatus that selectively reproduces a sound source file, supplies the sound source file to the portable terminal, and listens to the music via the portable terminal.
- the sound source reproducing apparatus When the sound source reproducing apparatus receives an activation signal representing a reproduction request, the sound source supplying apparatus determines a codec type of the portable terminal based on caller information included in the activation signal. .
- Any one of the plurality of types of processed sound source files is a process created by adding at least a process to silence one frame that is regarded as noise when the original sound source is not processed among the sound frames of the original sound source.
- a sound source supply device characterized by being a sound source file.
- Any one of the plurality of types of processed sound source files silences a plurality of consecutive frames starting from one frame that is regarded as noise when the original sound source is not processed, among the sound frames in the original sound source.
- a sound source supply device characterized by being a processed sound source file created by processing.
- Any one of the plurality of types of processed sound source files silences three consecutive frames starting from one frame that is regarded as noise when the original sound source is not processed among the sound frames of the original sound source.
- Processed sound source file created by processing A sound source supply device characterized by being an aisle.
- One processed sound source file corresponding to the determined codec type is selectively reproduced from the plurality of types of processed sound source files, supplied to the portable terminal, and the music is heard via the portable terminal. And a sound source supplying method.
- the sound source supply method wherein the type determining step is a step of determining a codec type of the portable terminal based on caller information included in the start signal when receiving a start signal indicating a reproduction request. .
- Any one of the plurality of types of processed sound source files is a process created by adding at least a process to silence one frame that is regarded as noise when the original sound source is not processed among the sound frames of the original sound source.
- a sound source supply method characterized by being a sound source file.
- Any one of the plurality of types of processed sound source files silences a plurality of consecutive frames starting from one frame that is regarded as noise when the original sound source is not processed, among the sound frames in the original sound source.
- a sound source supplying method characterized by being a processed sound source file created by processing.
- Any one of the plurality of types of processed sound source files is one frame that is regarded as noise when the original sound source is not processed among the audio frames in the original sound source.
- a sound source supply method characterized in that it is a processed sound source file created by adding a process to silence three consecutive frames starting from the beginning.
- a sound source file storage device that stores in advance a processed sound source file created by processing the original sound source of the music so as to reduce deterioration in sound quality according to the codec characteristics of the mobile terminal;
- the processed sound source file When receiving an activation signal indicating a playback request, the processed sound source file is provided with a sound source playback device that plays the processed sound source file, supplies the processed sound source file to the portable terminal, and listens to the music via the portable terminal.
- a sound source supply apparatus wherein the sound source file is a sound source file created by adding at least a process of making one frame that is regarded as noise when the original sound source is not added among the sound frames in the original sound source. .
- the cache sound source file is processed by making a plurality of continuous frames starting from one frame regarded as noise when the original sound source is not added among the sound frames of the original sound source to be silenced.
- a sound source supply device characterized by the created processed sound source file.
- the cache sound source file is created by adding silence to three consecutive frames starting from one frame that is regarded as noise when the original sound source is not added.
- a sound source supply device characterized by being a processed sound source file.
- the processed sound source file is reproduced, and the And supplying to a mobile terminal and listening to the music via the mobile terminal, and the processed sound source file is regarded as noise when the original sound source is not added among the audio frames in the original sound source.
- a sound source supply method wherein the sound source file is an additive sound source file created by adding a process for making at least silence in one frame.
- the processed sound source file is a processed sound source file created by adding at least a process to silence one frame that is regarded as noise when the original sound source is not added, among sound frames of the original sound source. Sound source supply method.
- the processed sound source file is created by adding a process to silence a plurality of consecutive frames starting from one frame that is regarded as noise when the original sound source is not added among the audio frames of the original sound source.
- a sound source supply method characterized by being a processed sound source file.
- the processed sound source file was created by adding a process that silences three consecutive frames starting from one frame that is regarded as noise when the original sound source is not added.
- a sound source supply method characterized by being a processed sound source file.
- FIG. 1 is a diagram for explaining a system including a current sound source supply device.
- FIG. 2 is a diagram for explaining a system including a sound source supply device according to an embodiment of the present invention.
- FIG. 3 is a diagram for explaining an original sound file and a processed sound source file (for GSM) used in the system of FIG.
- Fig. 4 shows the addition of GSM sound source files used in the system of Fig. 2. This is a flowchart showing the outline of the algorithm.
- FIG. 5 is a diagram for explaining a part of the processing algorithm of the sound source file for GSM in FIG.
- FIG. 6 is a diagram showing how the sound volume (pvad) and noise threshold (thvad) of the sound source file used in the system of FIG. 1 fluctuate.
- FIG. 7 is a diagram showing how the sound level (pvad) and noise threshold (thvad) of the sound source file used in the system of FIG. 2 fluctuate. Explanation of symbols:
- the sound source in a service for listening to music on a mobile terminal, the sound source is processed so that the sound quality deterioration is reduced according to the CODEC (CODEC: COder-DECoder) characteristics of the mobile terminal.
- CODEC COder-DECoder
- the sound source reproduction device determines the codec type of the mobile terminal based on the transmission network type IAM (Initial Address Message) included in the activation signal, and selects the best sound source processed according to the codec type. select.
- IAM Initial Address Message
- the dedicated sound source file with little sound quality degradation corresponding to the codec is selected and listened to, it is possible to hear a song with little sound quality degradation by the codec of the portable terminal.
- the sound source file is processed so that the sound quality deterioration is reduced even when a narrow-band mobile network is used.
- This processing technique is the core of the present invention.
- the state of sound quality degradation depends on the coding algorithm for each codec type used by each mobile network. For this reason, the sound source file processing method must be changed for each codec. By judging the caller's mobile network and selecting and connecting the sound source file processed for the codec used in the mobile network, it is possible to prevent deterioration of the sound quality of the music.
- Table 1 below shows the main mobile networks, codec types, and transmission bands.
- PCM 64 64 Note: Transmission bandwidth is the bandwidth of the entire signal (Kbit / sec), and voice bandwidth is the bandwidth of the voice signal (Kbit / sec)
- PHS Personal Handyphone System
- ADPCM Adaptive Differential Pulse Code Modulation
- PDC Personal Digital.
- Cellular VSELP is Vector Sum Excited Linear Prediction ⁇ PSI-CELP 3 ⁇ 4 Pitch Synchronous Innovation-Code Excited Linear Prediction ⁇ RPE-LTP Is Regular Pulse Excited-Long Term Pr ediction
- EFR is Enhanced Full Rate
- A-CELP Algebraic-Code Excited Liner Prediction ⁇ Cdma ⁇ or Code division multiple access ⁇ EVRC ⁇ or Enhanced Varia ble Rate Codec.
- “Outgoing melody service” is a service in which A listens to music specified by B instead of a ring back toe while A is calling by calling B (Ring Back Melody service).
- B Ring Back Melody service
- the codec used by each business operator is different, so it is possible to deal with it by performing different measures (sound source processing methods). Some operators use multiple codecs.
- FIG. 2 there is shown a system including a sound source supply device 20 that performs a sound source supply method according to an embodiment of the present invention.
- the system shown in FIG. 2 includes the same parts indicated by the same reference numerals as the system shown in FIG. 1 except for the sound source supply device 20.
- the sound source supply device 20 includes an original sound source file 2 0 1 of 128 kbit / sec WAV format, and a processed sound source file (for GSM) 2 0 2 processed from the original sound source file 2 0 1.
- a sound source file storage device 2 0 0 that stores the processed sound source file (for cdma) 2 0 3 processed from the original sound source file, and a sound source playback device (transmission device 1 device) 3 0 0.
- the processed sound source files 2 0 2 and 2 0 3 corresponding to the respective codec types are created by processing from the original sound source file (basic sound source file) using the algorithm created in the present invention.
- the created processed sound source file is stored in a sound source file storage device 200 as a sound source database. This part to be processed is the core part of the present invention.
- Figure 2 shows the case of listening to music in the outgoing melody service.
- the sound source playback device (sending melody device) 3 0 0 receives the start signal IAM (Initial Address Message) indicating a music playback request, and the caller information according to the caller information in the start signal Determine the codec used by and select the sound source file processed for that codec (one of the processed sound source files 2 0 2 and 2 0 3) and connect it.
- the processed sound source file is sent out as a 64 kbit / sec ⁇ Law PCM (Pulse Code Modulation) signal or A Law PCM signal by the sound source playback device 300.
- IAM Initial Address Message
- the sound source supply device 20 determines the codec type of the transmission terminal 1 0 5 from the caller information included in the activation signal IAM. And listen to the music of the sound source (one of the processed sound source files 202 and 203) processed for the corresponding codec. When there is no sound source for the corresponding codec, the music of the original sound source (original sound source file 2 0 1) is heard.
- a processed sound source file for playback created based on the original sound source of the original sound source file 2 0 1 (see (A) in Fig. 3) 2 0 2 ( (See (B) in Fig. 3).
- the frame judged as noise N and the immediately following 2 frames (total 3 frames) are shown in Fig. 3 (B). Forcibly replace with 0 as indicated by "SI" (silence. Clipping).
- Step S0 in Fig. 4 Input a basic sound source that represents music (step S0 in Fig. 4), and the sound quality deterioration of the low sound volume part (small amplitude part) of the music becomes severe. (Step Sl in Fig. 4).
- the Gain control algorithm amplifies the energy of the signal, and has the purpose of reducing the number of clippings in which the clipping process described in 4) below operates.
- Figure 5 shows a comparison of the number of forced cuts by gain control. Referring to Fig. 5, when the absolute value of the speech level (pvad) is close to the noise threshold (thvad), the time from the minimum value starting from the minimum value to the value that is regarded as noise gradually increases. Is very short. According to the speaker recognition (VAD) algorithm, noise is determined when the noise threshold (thvad) is greater than the speech level (pvad), but as shown in (1) in Fig.
- VAD speaker recognition
- IKVAD Voice Activity Section
- Frames with (soundness ⁇ noise threshold) are determined as noise frames. Therefore, in order to prevent the current frame from being recognized as a noise frame, the voice level (pv ad) must be greater than the noise threshold (thvad). In order for the voice level to always exceed the noise threshold, the GSM simulator searches for a part where the noise threshold is larger than the voice level, and forcibly minimizes the noise threshold in that part, thereby reducing the voice level to the noise threshold. Perform actions to be larger. At this time, in order to minimize the noise threshold, in updating the noise threshold in VAD, the energy of the input signal in the corresponding input frame must be forced to 0. It can be realized by setting it to 0. This process is called Clipping process.
- the corresponding frame (noise frame) and the next two frames are forcibly replaced with 0 (silenced).
- the noise judgment threshold can be lowered (step S5 in Fig. 4).
- the sound source file with the three consecutive frames replaced with 0 is output to the sound source file storage device (2 0 0 in Fig. 2) as a GSM processed sound source file (2 0 2 in Fig. 2) (step S6 in Fig. 4).
- the threshold of judgment can be lowered by forcibly replacing the corresponding frame (noise frame) and the next two frames with 0 (silence) is explained.
- the codec used in GSM (1 0 6 in Figure 2)
- the noise threshold does not drop to the minimum value when there is one frame of silence and two frames of silence.
- the input signal can be regarded as speech, and sound quality degradation is reduced.
- Fig. 6 and Fig. 7 show fluctuations in the sound level (pvad) and noise threshold (thvad) of the sound source file before improvement (the sound source file in 100 in Fig. 1) and after improvement (2 0 2 in Fig. 2). Indicates.
- the noise threshold (thvad) is high, so many frames are judged as noise.
- the noise threshold is lowered by forcibly cutting off the input signal, so the number of frames judged to be noise is greatly reduced.
- the sound source file 202 processed according to the codec 106 is selected and connected, it is possible to listen to a song with little deterioration in sound quality.
- the number of noise frames shown here was measured using a GSM simulator for the sound source before and after improvement.
- the number of noise frames and the rate of noise frame reduction due to the improvement in sound quality of the present invention are different.
- the number of noise frames before improvement is small in music mainly composed of singing and music of a violin alone.
- music before improvement music after improvement.
- the sound quality improvement of the present invention is very effective for such songs.
- the music before and after the processing of each sound source was evaluated by listening to and comparing the music played from the GSM terminal through the actual mobile phone network.
- the noise “Boo” was mixed at the end of one phrase of the song, but in the sound source after improvement almost no noise was mixed, and it was evaluated that the sound quality was improved. .
- the degree of the sound quality improvement effect of the present invention varies depending on the music. In singing songs and stringed songs, there is a small number of noises that can be heard even before improvement. In the case of piano songs and songs with large fluctuations in the strength, the noise-sounding parts were greatly reduced.
- the present invention can be widely used for all services for listening to music on a mobile phone.
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- Multimedia (AREA)
- Acoustics & Sound (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Health & Medical Sciences (AREA)
- Human Computer Interaction (AREA)
- Computational Linguistics (AREA)
- General Health & Medical Sciences (AREA)
- Computer Networks & Wireless Communication (AREA)
- Telephone Function (AREA)
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Abstract
Description
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Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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US11/884,530 US8271110B2 (en) | 2005-02-28 | 2006-02-28 | Sound source supply apparatus and sound source supply method |
EP06715267.8A EP1860648B1 (en) | 2005-02-28 | 2006-02-28 | Sound source supply device and sound source supply method |
CN2006800050146A CN101120401B (zh) | 2005-02-28 | 2006-02-28 | 声源供给装置及声源供给方法 |
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JP2005-054290 | 2005-02-28 | ||
JP2005054290A JP4572123B2 (ja) | 2005-02-28 | 2005-02-28 | 音源供給装置及び音源供給方法 |
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US (1) | US8271110B2 (ja) |
EP (1) | EP1860648B1 (ja) |
JP (1) | JP4572123B2 (ja) |
KR (1) | KR100911278B1 (ja) |
CN (1) | CN101120401B (ja) |
RU (1) | RU2383940C2 (ja) |
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US8073148B2 (en) * | 2005-07-11 | 2011-12-06 | Samsung Electronics Co., Ltd. | Sound processing apparatus and method |
JPWO2009066348A1 (ja) * | 2007-11-19 | 2011-03-31 | デュアキシズ株式会社 | 通信制御装置及び通信制御方法 |
JP5176721B2 (ja) * | 2008-06-30 | 2013-04-03 | ヤマハ株式会社 | コンテンツ再生システム |
CN103187065B (zh) * | 2011-12-30 | 2015-12-16 | 华为技术有限公司 | 音频数据的处理方法、装置和系统 |
CN106658363A (zh) * | 2016-10-21 | 2017-05-10 | 上海与德信息技术有限公司 | 一种基于移动终端的扩音方法和装置 |
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003177748A (ja) * | 2001-12-13 | 2003-06-27 | Yamaha Corp | 楽曲データ送信装置、楽曲データ提供サーバ及びそのプログラム |
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0236628A (ja) * | 1988-07-27 | 1990-02-06 | Toshiba Corp | 音声信号の送信方式及び送受信方式 |
US5430241A (en) | 1988-11-19 | 1995-07-04 | Sony Corporation | Signal processing method and sound source data forming apparatus |
JPH03123269A (ja) | 1989-10-06 | 1991-05-27 | Nec Corp | リングバックトーンおよびビジートーンの音声化電話交換方式 |
JPH03191645A (ja) | 1989-12-20 | 1991-08-21 | Nec Corp | 電話機 |
JP3373933B2 (ja) * | 1993-11-17 | 2003-02-04 | 三洋電機株式会社 | 話速変換装置 |
US5696500A (en) | 1995-08-18 | 1997-12-09 | Motorola, Inc. | Multi-media receiver and system therefor |
JPH09162978A (ja) | 1995-12-04 | 1997-06-20 | Fujitsu Ltd | 被呼者案内方法及び装置 |
JPH1092054A (ja) | 1996-09-19 | 1998-04-10 | Sony Corp | 情報記録再生装置 |
US6959220B1 (en) * | 1997-11-07 | 2005-10-25 | Microsoft Corporation | Digital audio signal filtering mechanism and method |
US6452941B1 (en) | 1998-09-16 | 2002-09-17 | Telefonaktiebolaget Lm Ericsson (Publ) | Method and system for alternating transmission of codec mode information |
JP4438127B2 (ja) | 1999-06-18 | 2010-03-24 | ソニー株式会社 | 音声符号化装置及び方法、音声復号装置及び方法、並びに記録媒体 |
ATE272289T1 (de) | 1999-07-19 | 2004-08-15 | Ringfree Co Ltd | Verfahren und vorrichtung zur erzeugung eines rückruftons bestehend aus sprache/text/bild kommerzielle information im wartezustand einer kommunikation |
JP3365360B2 (ja) | 1999-07-28 | 2003-01-08 | 日本電気株式会社 | 音声信号復号方法および音声信号符号化復号方法とその装置 |
US6633841B1 (en) * | 1999-07-29 | 2003-10-14 | Mindspeed Technologies, Inc. | Voice activity detection speech coding to accommodate music signals |
JP2001067807A (ja) * | 1999-08-25 | 2001-03-16 | Sanyo Electric Co Ltd | 音声再生装置 |
JP3982787B2 (ja) * | 1999-10-08 | 2007-09-26 | ヤマハ株式会社 | コンテンツデータ配布方法および電話端末装置 |
JP3406559B2 (ja) * | 2000-02-29 | 2003-05-12 | コナミ株式会社 | 携帯端末、情報処理装置、音源データの更新方法、並びに記録媒体 |
JP2002051164A (ja) * | 2000-05-24 | 2002-02-15 | Victor Co Of Japan Ltd | 音声コンテンツ試聴システム及びシステムサーバ並びに携帯電話機 |
JP4722347B2 (ja) | 2000-10-02 | 2011-07-13 | 中部電力株式会社 | 音源探査システム |
GB2371069B (en) * | 2001-01-15 | 2004-09-08 | Cementation Found Skanska Ltd | Waterstop for foundation elements |
JP2002247156A (ja) | 2001-02-21 | 2002-08-30 | Matsushita Electric Ind Co Ltd | 電話装置 |
FR2823343B1 (fr) | 2001-04-05 | 2003-07-04 | Cit Alcatel | Dispositif de generation d'un fichier multimedia a destination d'un terminal de telecommunications et fichier multimedia associe |
TWI223536B (en) | 2001-05-18 | 2004-11-01 | Yamaha Corp | Portable communication terminal |
JP3680772B2 (ja) * | 2001-07-23 | 2005-08-10 | 日本電気株式会社 | 音声コーデック指定方式 |
TWI226556B (en) | 2002-06-27 | 2005-01-11 | Lin Jr Feng | Real-time sound authorizing system and method thereof |
JP3878892B2 (ja) | 2002-08-21 | 2007-02-07 | 日本電信電話株式会社 | 収音方法、収音装置、および収音プログラム |
KR100841096B1 (ko) | 2002-10-14 | 2008-06-25 | 리얼네트웍스아시아퍼시픽 주식회사 | 음성 코덱에 대한 디지털 오디오 신호의 전처리 방법 |
KR100462064B1 (ko) | 2002-11-30 | 2004-12-17 | 에스케이 텔레콤주식회사 | 멀티미디어 메시징 서비스를 위한 이미지 처리방법 및 그시스템 |
KR100754439B1 (ko) * | 2003-01-09 | 2007-08-31 | 와이더댄 주식회사 | 이동 전화상의 체감 음질을 향상시키기 위한 디지털오디오 신호의 전처리 방법 |
US7171245B2 (en) * | 2004-05-06 | 2007-01-30 | Chunghwa Telecom Co., Ltd. | Method for eliminating musical tone from becoming wind shear sound |
US7567846B2 (en) * | 2004-09-24 | 2009-07-28 | Sztybel Robert S | Interactive audio content delivery system and method |
-
2005
- 2005-02-28 JP JP2005054290A patent/JP4572123B2/ja not_active Expired - Fee Related
-
2006
- 2006-02-28 CN CN2006800050146A patent/CN101120401B/zh not_active Expired - Fee Related
- 2006-02-28 KR KR1020077020289A patent/KR100911278B1/ko active IP Right Grant
- 2006-02-28 RU RU2007135871/09A patent/RU2383940C2/ru not_active IP Right Cessation
- 2006-02-28 EP EP06715267.8A patent/EP1860648B1/en not_active Expired - Fee Related
- 2006-02-28 US US11/884,530 patent/US8271110B2/en not_active Expired - Fee Related
- 2006-02-28 WO PCT/JP2006/304224 patent/WO2006090934A1/ja active Application Filing
- 2006-03-01 TW TW095106785A patent/TW200701756A/zh not_active IP Right Cessation
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003177748A (ja) * | 2001-12-13 | 2003-06-27 | Yamaha Corp | 楽曲データ送信装置、楽曲データ提供サーバ及びそのプログラム |
Non-Patent Citations (2)
Title |
---|
DTM MAGAZINE, vol. 12, no. 1, 1 January 2005 (2005-01-01), pages 14 - 15, XP003007794 * |
See also references of EP1860648A4 * |
Also Published As
Publication number | Publication date |
---|---|
JP4572123B2 (ja) | 2010-10-27 |
KR100911278B1 (ko) | 2009-08-11 |
RU2007135871A (ru) | 2009-04-10 |
US8271110B2 (en) | 2012-09-18 |
EP1860648A4 (en) | 2010-08-18 |
RU2383940C2 (ru) | 2010-03-10 |
EP1860648B1 (en) | 2013-04-17 |
TW200701756A (en) | 2007-01-01 |
CN101120401B (zh) | 2011-06-15 |
CN101120401A (zh) | 2008-02-06 |
KR20070110509A (ko) | 2007-11-19 |
TWI355842B (ja) | 2012-01-01 |
US20080267424A1 (en) | 2008-10-30 |
JP2006242979A (ja) | 2006-09-14 |
EP1860648A1 (en) | 2007-11-28 |
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