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We operate a specialized service for improving sound quality, not voice analysis. There are many requests for noise removal from the general public, but we have a consultation about "voice analysis" about once a month. This is not basically handled. The only most recent voice analysis The only case I received most recently was "I want you to check whether the conversation content of the voice data has been edited." While checking the audio material, I checked for any editing scars in the areas of concern. It is relatively easy to judge that the one edited by an amateur has a blatant joint. However, when edited by a professional voice specialist, the seams and background noise are completely composited, so even I, a professional, can hardly tell. I couldn't say that the sound source I received had a clear edit. The client is somewhat reluctant to say "I didn't have it" after receiving a guarantee for the need to "find an edit point". For that reason, we basically do not accept it. There are a certain number of consultations from people with hallucinations, but we do not accept them. I have hallucinations due to mental illness or similar symptoms, and I "always hear bad words", so I recorded it on the spot, but there are a certain number of requests to check if it is included, but I have received it. not. It seems that the faint sound in the room may sound like that. Of course, we do not deny the disease or those who are suspected of it. In the case of consultation using the above as an example, in most cases you cannot hear anything even if you actually check the data, increase the volume by several tens of times and cut the noise. (Although we basically handle data confirmation at the time of contact) We cannot accept work that has no room for improvement. Because we are launching a free trial as a business, if we cannot improve 100%, we will have a deficit for the work. It is the same as it is impossible to stretch low resolution photo data For voice restoration, iZotope's RX8 Advanced (2020 latest version) application is mainly used for business. I'm hitting. Since the sound component called the spectrogram meter (the image at the top of the blog) can be graphicized, you can roughly grasp what kind of component is mixed in the state of the sound. However, very small sounds that can be heard or cannot be heard are not converted into data in low-resolution sound sources. Also, because environmental sounds are a mixture of various sounds, in most cases it is not possible to find a specific component in the meter. Sound has similar characteristics to image data. Even if you stretch a low-resolution photographic image on your computer, it will look like a mosaic, and you may have some experience that you don't understand. Sound quality improvement is basically to make the sounds that are heard easier to hear. If you can't hear the target voice even faintly in the audio data, the improvement probability is zero. If you can't see a word in your own recorded voice that tells you what you're saying, even if it's fragmentary, you probably can't clarify the content. At best, a smartphone voice memo or an inexpensive IC recorder can record about 50 cm from the microphone clearly. Attempts to capture evidence of an affair in one corner of the room often fail. Of course, with a recorder (linear PCM recorder) with a high resolution and a built-in high-performance microphone, the improvement probability will increase a little more. I can hear it by myself, but if you want to find out if you can hear it, I recommend that you first ask your family and other close relatives to listen to the recorded data, saying, "I think I can hear something." Summary Voice analysis is basically not accepted If you can't hear the conversation at all when you ask yourself, the improvement probability is zero. Services that improve the sounds you hear Making a small sound louder is similar to stretching coarse photo data We are improving more than 100 hard-to-listen sound sources a year. Please contact us if you have any problems with the sound source.

Three principles to keep in mind when recording conversations with a voice recorder Recording with a voice recorder is very familiar as voice evidence for each business negotiation or dispute, as well as the minutes of a meeting. However, even though I recorded it, I often hear it when I play it back later, the noise is terrible, and there is a lot of reverberation in the room, so I can't hear the contents. The following three points are the main principles to avoid such troubles. 1. Avoid noisy places 2. The distance from the microphone to the mouth is as close as possible 3. Do not put it in your clothes pocket 1.Avoid noisy places A quieter place is recommended when recording conversations. We do not recommend restaurants, cafes, McDonald's, shopping malls, etc. Even in places where you don't mind the sound during normal times, the recordings are different. When I actually record it, there are a lot of crowds around me, such as other people's voices, in-store broadcasts, BGM, footsteps, etc. You can not. In a small cafe, the conversation in the next seat is clearly recorded, so even if you try to translate it later, you can't use it. In fact, many such improvement requests have been sent to this service. In addition, conversations in the car while driving are drowned out by strong engine noise and wind noise, and the probability of being unable to repair is high. ２.The distance from the microphone to the mouth is as close as possible Reduce the distance of the voice recorder microphone from the conversation you want to record. Avoid putting small voice recorders in your clothes pocket. The sound is also loud, and the sound of rubbing against the clothes is heard, and I can't hear the contents after all. This noise is difficult to completely repair because the microphone and clothes are at zero distance. The most trouble to avoid when recording with a voice recorder, which drowns out important conversations. If you can get the consent of the person you are talking to, place it on a table at a distance from each other. If that is difficult, put it in a second bag that you don't mind even on the table. Of course, if you cover it with a thick cloth, you will not be able to record well, so we recommend that you have a mesh pocket. Of course, if you want to use the other party's voice as evidence, don't forget to point the tip of the microphone toward the other party. Even if there is a physical distance to the performer who announces the content you want to record, such as a conference or lecture, install the voice recorder near the speaker or closer to the performer. In a large venue, the echoes in the venue are strong, and even if you can record beautifully, there are cases where you cannot hear it at all due to the echoes. ３.Prepare high-performance products IC recorders for conversation recording can be purchased for around $ 30 to 80, but if you check the functions carefully, there may be a noise cut function, or there may be a large spec difference even though there is not much price difference. In most cases, old-fashioned voice recorders are inconvenient because they cannot be connected to a computer to transfer data. Even if you own an old model, you should introduce a new model if you are planning to use it for trials or to transcribe it reliably. Summary How was that. I run a sound quality improvement service called Hybrid Sound Reform, but there are many inquiries about "I can't hear the recorded content of voice memos." In some cases, it can be improved, but their success rate is around 50%. There are many sound sources that even professional professionals cannot fix. I wrote this article for those who have the opportunity to record important conversations. #Voicerecorder #ICrecorder #Conversationrecording #Minutes #Voicememo #Recording #Noise #Trial #Divorcetalks

Remove noise from video-recorded piano recitals #Noise #Video #Pianorecital #Noiseremoval I run a "audio restoration" service for videos and various recordings, but from the beginning of the service's launch, I have been providing noise removal for music performances. The other day, I received an order to remove noise mixed in with the audio of a video of a children's piano recital. Recently, the classroom that hosts the recital sometimes asks a video company to record the video, but the video of the client who requested is the material that was shot by himself in the audience. The bleachers tend to be noisy at the recitals of piano classrooms, where the proportion of young children is high. Various noises such as noises and voices in the audience were mixed in the materials we received, and it was a video of the voice that felt stressful to listen carefully to the performance itself. Shooting in the audience will pick up ambient noise rather than playing If it's a video that is positioned like a snapshot, that's enough. However, it is difficult to enjoy the recorded music itself. Even if the performance is wonderful. If the voice of the audience is clearly mixed, the quality will almost always be "withered". The built-in microphone of the video camera tends to be in such a state because the sound of the audience seats is located closer to the stage where the performance is being performed. This is stressful for those who want to listen to music properly. When the general public shoots a movie, there is a high probability that such sound quality will be obtained. Cutting human voice requires advanced skills The current sound quality correction technology can cut various noises from the recorded data, but since the shutter sound and striking sound of the camera are instantaneous sound images, they are cut almost perfectly (accurately, the noise component is discriminated and others). It can be resynthesized by comparing it with the sound of (), but since the human voice that makes a continuous sound is mixed with various sounds that can be heard in the same range, it requires advanced editing skills to erase it cleanly. Will be. During the performance of about 5 minutes, the client's sound source clearly contained the voice of the child in the audience seats in about 3 places, and he wanted to reduce that voice and loud noise and convert it to a beautiful performance sound source. .. In particular, piano performances are very delicate, unlike large-scale ensemble performances. If even a small amount of resynthesis marks remain, it often feels more uncomfortable than unprocessed audio, and it may not be possible to improve it well depending on the mixing position during performance. It is difficult to deceive the performance of a non-ensemble instrument alone In loud music such as brass band, orchestra, and rock band, small sounds are masked and small noises are drowned out. However, when playing the piano, the sound of turning over the pamphlet can be heard clearly, and the direct noise is more noticeable than the ensemble. Therefore, in many cases, we refuse to remove noise from piano performances. In addition, quotes tend to be soaring (if the noise is terrible) and may not be available from the free trial. We also handle many sound sources for various instrumental music that are recorded only with a ceiling-mounted microphone. Please feel free to contact us if you have any problems with the noise of the precious performance sound source that you really want to improve. We provide Japanese quality polite voice processing with the best cost performance.

Cuts noisy noise (bird calls) mixed in video messages Nowadays, you can easily shoot videos with your smartphone, etc. Video messages are one of the familiar means. I think many people used it to celebrate their family and friends. The other day, the sound quality improvement requested by a professional creator who is editing videos for free is a video message sent at a company commemorative event. A big celebrity that everyone knows sent a congratulatory comment to the president of a company. "Hello Bob, congratulations this time" It's a comment cut that seems to be common, but most of the time I'm talking, the noisy bird's cry of "peepy" is mixed in so that the comment is covered. Even when recording outdoors in a quiet place, only the birdsong can be heard at a jarring level. For the general public, it is enough to convey the content of the message, but it is a level that is "worrisome" for public announcement such as screening on the company homepage or party venue. It would be a rude video for both the company and the people who commented. ・ Noisy noise mixed in MC can be significantly reduced by advanced technology. ・ Business apps are expensive and require experience to master them. ・ Background noise can also be resynthesized Noisy noise can be significantly reduced with advanced technology Even if the audio is given up 10 years ago and could not be repaired, the repair tools used in advanced post production (such as RX from iZotope) can repair troubled audio in such cases with high accuracy. Sounds that are not mixed with the surrounding sounds and that are clearly uncomfortable can be processed fairly cleanly. The above video removes the whistling of the live venue called "Pee". In the case of comments, it is not an easy task because it slightly covers the main sound, but it can be removed with considerable accuracy. ★ Business apps are expensive and require experience to master I use iZotope's RX8 Advanced (latest version as of 2021), but specialized audio repair tools are a bit expensive for the general public who don't use them often. The orange spectrum meter, which is also displayed in the above video, visualizes the sound, so you can perform various processing locally while watching the visual. A certain amount of experience is required to effectively use it, such as what kind of module should be used for improvement in a high-precision monitor (speaker or headphone) environment or various processes. ★Background noise can also be resynthesized Since the audio component is visualized, it can be processed like Photoshop, but the noise you want to remove (here, the voice of a bird) is identified on the meter and erased. We will try and error the most effective processing, such as locally reducing the volume of the part that can be judged as "bird's voice" or blending it with other sounds in a gradation manner, and search for a better processing method. However, if you erase the "clear sound" of the already recorded voice data, you will inevitably get a "twitching feeling". It's difficult to get a natural finish, but Ambience Match is a powerful help in alleviating them. It is a function to resynthesize the noise part that has been clearly removed with other background noise. If used properly, you can expect a "noise-free" finish. Please feel free to contact us if you have any video or audio content you are worried about. Hybrid Sound Reform helps hundreds of professional creators' troubles in such voice recording every year. This service is operated in Japan. Due to long-term deflation, prices are very low, and it is quite cost effective from orders from overseas. You can try the content you are worried about in a "free trial". Please feel free to contact us. Anyone can remove noise from video data, adjust sound, and restore audio. #Videophotographer #Voicetrouble #Noiseremovalmethod #Audiorepair #Videoaudioediting #Interviewvideo #Greenhouseimprovement

I'm Yamakawa, who runs a sound quality improvement service. For the purpose of submitting voice as evidence in proceedings or troubles, transcription of meetings and seminars, etc. There are many consultations from people who record with voice memos and voice recorders on smartphones. Most of them were recorded, but I was worried that I couldn't hear the conversation. The ambient noise is terrible The distance to the person who is speaking is far Difficult to hear due to many echoes Recording equipment trouble The above are the main causes of voice problems that make it difficult to judge the words in the recorded data. Now, why are you playing these recorded audio? If you can't hear the conversation after playing it normally on your smartphone, voice recorder, or computer speaker, we strongly recommend purchasing headphones or earphones (preferably in the $ 80 price range) before using this service. The current situation is that. Most smartphones, voice recorders, and PC speakers are low-cost, cheap speakers. Although it depends on the model, most smartphones, voice recorders, and PC speakers that are not designed for sound quality are low-cost cheap speakers. It is a spec that "you can check the sound for the time being". The playback resolution is very low, and you can listen to music and voice content produced as sales content to some extent, but it is not suitable for playing back noisy amateur recording data. You can listen to it without any modification There are many cases where even a sound source in poor condition can be grasped considerably by using headphones and earphones. We have a professional monitor environment, but there are many cases where you can hear it at all without any modification. Conversations that cannot be heard even with high-quality music earphones or headphones This is where the sound quality improvement service comes into play. We handle a large number of low-quality sound sources, and at Hybrid Sound Reform, we always keep the sound sources that you are having trouble with in the form of a free trial. However, even professional professionals do not have a very high success rate in improving voice recorder sound sources. Especially in conversations where the content is difficult to hear, the adoption rate is around 50%. (Of course, there are cases where it doesn't match the client's budget.) No matter how long it takes and complicated repairs, only a small improvement can be made. (Reference) Main factors when giving up sound quality improvement (difficulty ranking) 5th place: Completely drowned out by other loud sounds The accuracy of noise removal has improved in recent years. If it is a momentary sound like "Bos, don, Paan, click", it can be removed with considerable accuracy. Apart from them, there is a possibility that you can retrieve the conversation in between. However, the sound of "gaaa --------------" and "Zaaa ---------" that keeps ringing can be reduced. 4th place: The volume difference between the interlocutors such as telephone conversations is too large Telephone conversations are not recorded with a dedicated app, but if you put the recorder in your mouth, you can of course record only the sound of the other party with a small sound like a mosquito. The volume difference from your own voice is also large, and it takes a tremendous amount of work to improve. 3rd place: Low sound source resolution Cheap IC recorders take voice memos with your mouth, so low resolution settings may be standard. Even if you record a long distance with such a recorder, the data density is low, and there is a low probability that it can be improved by retrofitting. 2nd place: Various voices are mixed in a complicated way It is not possible to focus on a specific person when other conversations are mixed at a close distance, such as in a bar or a noisy cafe. Since the frequency bands of human voices are approximately the same, there is currently no voice editing technology that can be individually judged to reduce or eliminate pinpoints. 1st place: The distance to the sound source is so long that you can hardly hear it (in short, it is not converted to digital data) Naturally, in digital recording, the sound picked up from the microphone is recorded as a signal. There is not enough data to improve small sounds that cannot be picked up from the microphone. It is difficult to record a conversational IC recorder at a level that can be heard without recording with the mouth. The voice recorder (iPhone voice memo) is only for meetings and memos of your own voice, so if you are more than 1 meter away from the sound source, the probability of clear recording will drop considerably. If you want to record at a certain distance and record the clear contents, it is wise to record with a high-resolution linear PCM recorder with high microphone sensitivity.

Voice extraction of voice memos is difficult with compressed sound sources (mp3) with poor data density I'm Yamakawa, a sound reformer who may be dealing with poor quality voice data in Japan. Since the sound quality improvement site I run has a free trial system, more than 100 low-quality sound sources that say "that kind of sound is impossible !!" are collected annually. Among them, there are many worries about wanting to extract the voice of voice memos recorded with an IC recorder or smartphone, but to be clear, the probability of being adopted from a trial is about half. The probability of improvement without problems is quite low. What kind of recording is difficult to improve? In the first place, it is far from the sound source (I can only hear the sound of mosquitoes) Conversations other than the people themselves are involved in izakaya and noisy cafes. Make the faint voice of the other party that you can hear from the handset on the telephone. The microphone and the amount of data determine the recording quality Audio recording and video audio are digital, so they are digitized and recorded. That's why the microphone and recording resolution are important. Amateur recordings do not adhere to the basic principles. Only people who are recording without checking the recorded sound. Few people use earphones or headphones to check the sound on a monitor to see what kind of picture they are taking with a digital camera. The only way to extract voice from noisy conversation data is to amplify or resynthesize the remaining components of the digitized data. If you want to make a good sound later, the resolution of audio material with a large amount of data is the key. Imagine a digital camera image with a rough image. It's easy to imagine that a photo that looks blurry and looks like a mosaic is unlikely to be fixed. Voice data is basically the same. IC recorder long-time recording (MP3) MP3 files can be recorded for a long time because the amount of data can be saved. Many IC recorders can switch the recording method. (Wav and mp3) mp3 has a capacity of about 1/5 that of wav, so it is convenient for long-time recording. However, a large amount of data is being decimated. It's okay to compress professional quality sound sources such as artist music data and listen to them in MP3, but it's not suitable for amateurs who want to record with high sound quality. In noisy environments, such as where the recorder's microphone is far from conversation or noisy, it is difficult to technically repair it later. Hidden recording to suppress cheating scene In many cases, one of the spouses reminds us of an IC recorder (smartphone) in a room or the like in an attempt to suppress evidence of an affair. In fact, this usage is wrong. Although it differs depending on the model, the IC recorders that are sold at low prices have a proper recording range of about 1 meter over the desk, such as for interviews. Even if it is hidden in the corner of the room, it cannot record decent audio. If you need to record from a few meters away and listen to the details, you need a higher-grade recorder equipped with a high-performance microphone called a linear PCM recorder. Conclusion ・ Check with headphones what kind of sound can be recorded before recording if it is an important voice that you want to keep as evidence. ・ If you want to leave the possibility of repairing later, record with wav method. ・ If you want to record a conversation with a voice memo on an IC recorder or smartphone, it is within 1 meter from the microphone.

Saxophone player's (original song) mix mastering Under the influence of the corona, it is natural for musicians who are unable to perform live activities and who are in a nest to go to songwriting. During this period, the number of requests for mix mastering of home-recorded songs from musicians who are usually active mainly in live performances increased for this service, which handles sound quality improvement services. Due to the service strategy, we specialize in restoration-type audio editing such as noise removal and audio restoration, but the range of defense that can be supported by audio and video is extremely wide. We do not accept on-site recording, but since we were aiming to be a recording engineer in the first place, we can also handle mix mastering of various musical works. Songs that helped mix mastering Live performance + sequence track up one grade If you can't record at the same time in a band style, recording at home using a DAW is probably the most efficient way to create music. Except for the main part of live recording such as vocals and saxophone, it can be said that the mainstream production method with the highest cost performance is to type in with a sequencer or make a track with sampling material. The major DAW software Cubase and Logic are equipped with software sound sources that can be used by professional musicians as they are, and the quality is also higher than in the MIDI era when external sound sources were heavily used. However, even with such a sound source, long experience, expertise, and other skills are required to mix it so that it can be sublimated to the next dimension. Sometimes only self-recording instruments are cheap Due to the quality of the software instruments and sample materials, and the lack of quality of the main tracks such as vocals recorded by themselves, it is not uncommon for only the leading part to feel cheap. The quality of live musical instruments and vocal parts can be greatly improved by just using the compressor. This service supports such mixed problems at an affordable price. Of course, it is possible to mix or request restoration of only the main tracks, not the entire song. Cleans up noise mixed in at home recording Noise is always a problem when recording at home. Even if the sound is clear, a highly sensitive condenser microphone will pick up even the small sound of the hands of the clock. In addition, useless room reverb is added, and it is difficult to make clear recordings as it should be. If the arrangement of the orchestra is lively, you may not be concerned about the small noise. However, the compressor or limiter may make the noise more noticeable, or the tone may look strange. With hybrid sound reform, even severe sound sources are converted into clear tracks that are easy to mix. Depending on the degree, it also supports a wide range of repairs for sound cracking and other voice problems. Negative recording material will also be raised to studio quality. We provide mix and mastering that can withstand distribution releases at high cost performance. Please feel free to contact us.

We accept requests for removal / reduction from those who are having trouble with the rubbing noise of the IC recorder. I'm Yamakawa, a sound reformer who works on repairing, improving, and removing noise from voice data. Removal / reduction of cloth rubbing noise is a relatively frequently consulted matter. When recording with the IC recorder smartphone in your pocket The microphone and cloth rub against each other and make a strong noise, making it difficult to hear important conversations. Recently, there is an increasing need to try to record conversation content as evidence for fighting in court, such as power harassment, sexual harassment, and contract cancellation interviews. It is difficult for important keywords at the time of a dispute to be drowned out by such noise, and if it is frequent, it may be difficult to request translation (transcription) because it is jarring. Cloth rubbing noise can be significantly reduced The latest voice restoration technology (audio restoration) can easily reduce or eliminate the rubbing noise. If it is recorded at a certain conversation volume, the removal accuracy is high. However, it is not possible to restore the "drown voice" component that does not exist in the recorded data. The above video sample is a recording under a high-level recording environment such as a movie. Most of the noise of the IC recorder sound source that we handle on a daily basis is even worse. In Hybrid Sound Reform, we receive hundreds of requests for improvement of IC recorder recording noise removal and voice restoration from general users every year. Please contact us by all means.

Can't you hear the contents of the lecture wearing a mask because the microphone sound is muffled? I'm Yamakawa, who runs a sound quality improvement service for video and audio data. A new lifestyle due to the corona sickness has taken root, and a mask is indispensable when going out. Since the fall of 2020, the number of inquiries has been increasing at the same time as the event events have been gradually activated. "If you talk with a microphone while wearing a mask, your voice will be muffled and difficult to hear." I'm worried. In the exchange between President Trump and the media, while wearing a masked reporter with Ichamon "You are clear and easy to ask questions without a mask," he praised (laughs). Obviously, wearing a mask makes the sound muffled and makes it difficult to hear people's voices. Hearing is different between the scene and after recording the video Microphones are used for lectures in large venues so that the audience can hear them. Even if you think that it is a little difficult to hear if you wear a mask on the spot, there are many cases where you can not hear what you are talking about when you record and preview it. Recording only with a camera microphone without line recording from the microphone adds the following negative factors. Reverberation of the venue Ventilation opens windows and doors Noise from outside the venue related to 2 (car engine noise, etc.) When these are added, the audio state becomes a level that makes little sense for recording. It can be said to be fatal when recording a professional lecture where the content of the talk is the center of value. Jet noise + microphone performance leaking from another booth The other day, the case you requested was a small lecture held at a large exhibition hall booth that included all of the above negative factors. Because the venue is close to the airport, in addition to the harsh environment with the noise of jet planes passing by, The flashy microphone performance of the next booth was mixed in, and the voice of the performer who was muffled (depending on the angle of view) was defeated by the voice of another booth, and it was in a very difficult state. ・ Overall noise reduction ・ Boost by distinguishing only human voice ・ Cut and reduce the voice of the next booth Execute improvement processing centering on the above work. After presenting the sample, it was adopted and delivered safely. For those who are having trouble with "difficult-to-listen audio / video data" even for projects that are not related to masks Please feel free to contact Hybrid Sound Reform if you come.

Noise removal and digital remastering of cassette tapes I'm Yamakawa @HSR_YB, a sound reformer who repairs video and audio data and handles noise.The other day, I received a request to remaster a cassette tape sound source for the first time in a while. Various magnetic tapes whose storage limit has expired Originally, we started with a service to improve the sound quality of live sound sources of VHS tapes, but the opportunities to handle magnetic media (cassette tapes, VHS, DAT, etc.) have decreased dramatically, and we only have a few times a year. It is the mainstream that the playback terminal is broken or the tape is not in an environment where it can be played back due to aging, and even when dealing with old data, it is often a digitized sound source. Most of the work is to receive data from web storage services. Cassette tape sound source for vocal and piano performances The client is a female singer who was active mainly in live performances at pubs such as Roppongi and Shinjuku when she was young. She says she's doing another job now, but no one around her can believe she's a former singer. The only sound source that can be proved is the sound source recorded on a cassette tape. He wanted to improve the sound quality and make the CD easier to listen to in terms of quality. It is probably composed of cover songs and sound sources from about 30 to 35 years ago. Dolby B alone made a lot of noise The tape is a normal tape. As is familiar to the cassette tape generation, the analog cassette tape deck was easy to get on with hiss noise called "sahhh". Therefore, most of the models are compatible with "Dolby B", which can reduce hiss noise even with an inexpensive radio cassette player. Rough noise reduction is possible by pressing this button when recording. There is no noise reduction check in the index, but I tried some Dolby noise reduction (B / C / S) buttons on my TEAC cassette deck. Perhaps it was recorded with Dolby turned on. When I selected B mode, it became amazingly beautiful. It was recorded on a PC via an audio interface and converted to digital data. Instrument imbalance & audience noise The noise of the tape factor has become fairly clean with Dolby. However, the balance of the recorded music itself was not very good. Vocal + song + rhythm box Each of these sounds was put together in a PA mixer, and the lineout was probably recorded on a cassette as it was. Only the vocals and rhythm box are extremely loud, and the main backing instrument, the piano, is only small. Since the venue is not big, there is no microphone on the piano, and it seems that the sounds picked up from the off-mic in the store are mixed a little. The voice of the audience is not so loud. (A little worrisome in the part that is not singing and becomes piano only) The live house sound source (2MIX) of the 80's and 90's just recorded the lineout of the PA mixer in the same way. There were countless sound sources with poor instrument balance. Most of the sound sources of that kind are of a quality that is hard to hear and cannot be heard by people. Although it is rough with the latest technology, it is possible to rebalance an instrument by AI analysis from a recorded sound source. Since we received a slightly larger budget, we also handle the voices of the audience and the noises of concern in detail. Dirty words tend to be mixed in at stores where alcohol is used, and the atmosphere changes just by reducing them. After fine noise lean, finally mastering processing. Digitally remastered by hybridizing to a sound close to modern quality. I delivered it as a CD. Hybrid sound source like a precious treasure Nowadays it is difficult to go out due to the corona virus, and it is a good opportunity to hybridize your own precious sound source as a pleasure of your stay home. For hybrid sound reform, we also accept requests for higher sound quality of old VHS and cassette tape sound sources. Why don't you make the sound source that is valuable to you easy to hear again? Click here for how to use Sound Reform

Rain outside the interview shooting | Noise cut (denoiser) I'm Yamakawa @HSR_YB, who runs a sound quality improvement service. The other day, I received a request to adjust the sound of promotional videos for overseas brands that are newly developed in Japan. YouTube content created with the intention of introducing a particular brand story through interviews with well-known actresses. It seems that multiple cameras were shot and edited by one photographer. If the Denoiser setting is not correct, the sound will be strange. Immediately before the release, the actress's office gave an NG in terms of sound quality. The cause was that it was raining at the time of the interview, and the sound of rain (not so strong) was continuously mixed in the room. Due to the improper noise processing, the voice quality became uncomfortable. Since it was not a contact from the video editor, I have not been able to confirm the details, but from the finish, I imagine that it is the result of strongly using Denoiser (noise processing plug-in) that comes with video editing software such as Final Cut pro X. I am. For Denoise plug-ins, it is very important to adjust the amount of scooping, but it is not uncommon to consult with us about sound adjustment because we cannot avoid the feeling of strangeness. Due to the growing demand for video, there are various levels of editors, but there are cases where even more specialized audio editing cannot be handled by professionals. For difficult noise processing, it is difficult to reduce noise naturally and finish it without discomfort if you can handle only the presets of the attached plug-in. How to finish a sound with continuous noise with professional quality A single plugin such as Denoiser can only do a rough noise cut. Quality cannot keep up with high-brand content that emphasizes image. If we handle Low cut Noise reduction in a specific frequency range (combined with multiple De-noise plug-ins) Amplification and limiting by voice component extraction Reverberation component reduction Equalizing according to the actress's voice and environmental sound From abundant experience value, we perform exquisite processing according to the audio source and finish it with high quality. Solves the problem of sound that cannot be retaken If you have a famous actress appear, there are very few companies that can re-shoot at a cost. If you have any concerns about improving the sound quality, please feel free to contact us for hybrid sound reform, regardless of whether you are a professional or amateur.。 Sound cracking Motorcycle engine sound mixed Air conditioner noise Noise due to equipment trouble Mini wireless microphone recording omission We have a track record of improving various audio problems in TV programs and videos. Please leave it to us for sound adjustment and dialogue finishing of movie contents.

Zoom Webinar archived video echo mitigation request I'm Yamakawa @HSR_YB, a hybrid sound reformer who works on repairing and improving voice data. Since the Corona disaster, remote appearances on TV programs have become a standard, but we often see broadcasts that are difficult to hear due to interruptions in sound due to problems such as radio wave conditions. ZOOM, a web conferencing system, has become firmly established in corporate internal meetings. Since those call records can be recorded, they can be used not only for meetings but also for in-house training and online seminars. The number of cases where it is secondarily used as a teaching material as a video archive is increasing. Difficult to hear the audio of the video archive Such video archives are caused by unexpected audio problems due to communication environment and equipment setting mistakes, and the number of consultations for this service is increasing. The sound is interrupted The voice echoes Delay (mountain phenomenon) is applied The noise is terrible The sound is quiet The above is the main content of the voice troubles that were consulted regarding 2020 ZOOM. In some cases, some problems were combined. Echo reduction for specific performers One of the requests for sound quality improvement was a ZOOM dialogue with four performers who were supposed to use it for e-learning materials. The three performers had clear voices on the microphone, but only one performed a strong echo. The viewer has a strong sense of discomfort. With our audio restoration technology, reverberation can be reduced to some extent. When recording with a voice recorder in the audience seats of the lecture hall, we have delivered many times to the problem that the reverberant sound is too loud and it is difficult to hear the contents. This time, only one subject has a wave in the echo condition depending on the location. It was a rather troublesome task to apply mitigation processing to each part that felt uncomfortable and to bring the sound quality of the other three people as close as possible. When we presented an improvement sample, it was evaluated that the discomfort was considerably reduced, and it was officially adopted. Difficult to reduce delay (mountain phenomenon) AAA class It is said that a delay (mountain phenomenon) has occurred endlessly for 90 minutes in the main voice recorded in the lecture. There was also a consultation. There is also a complete give-up case depending on the degree. "Ah ~ (Ah ~) Today ~ (Today ~)" Such a state. It was a very uncomfortable and harsh condition that the next word was covered by the previous word. We often refuse such situations, but we will make full use of the "specific sound erasing technology" that our service has to find out if we can somehow reduce it due to the fact that we have presented a slightly expensive budget. I considered it. As in the sample video above, it is relatively easy (if the number of processes is small) to erase the sound that is clearly not mixed with other sounds such as "pee" in the live venue. However, when the performer's voice is overwhelmed by his own voice, it is difficult to determine where the echo sound is mixed, and it is not an exaggeration to say that it is the number one among the many sound quality improvements made last year. It was. I worked all day for about 7 days and was able to deliver it. We will take care of such difficult problems if your budget matches. We also offer free diagnosis (sample creation). If you would like to improve ZOOM-related voice troubles and noise, please feel free to contact us for hybrid sound reform.