Oversampling function was added. Using oversampling reduces the separation between "True Peak" and "Peak". However, the processing time will be delayed. Setting Oversampling to 1x will result in the same behavior as before.
If you are concerned about True Peak, please try it.
"Limiter error spectrogram" added
"Limiter error spectrogram" is visualized in spectrogram form at which timing and which band affects the limiter error. I think it will be easier to reduce the limiter error when using this.
Since the relative value is displayed, you do not have to worry if "Limiter error" is small in the first place. In areas where there is no original sound such as super high frequency range and silent part, the color tends to become thicker overall, but there is no problem if it does not matter if you listen.
What is important is the dense part of the color that exists in the dark part. This image contains many vertical lines below 15 kHz. This line is a distortion that occurred without being able to completely compress the peak of strong attack sound.
Please refer to the following article for how to reduce the limiter error.
Dissonance index is an indicator of dissonance degree of sound. The Dissonance index tends to become small as there are many sounds whose spectrum is densely concentrated in the frequency direction, such as percussion instruments and noise, and become smaller as there are many pitches with pitches such as piano and strings.
Speed up audio analysis
In AI Mastering, after uploading audio, mastering starts when audio analysis is completed. As we speed up the analysis of the audio, mastering should start faster.
We will introduce PEAQ (Perceptual Evaluation of Audio Quality).
Can PEAQ perceive the difference between the reference sound and the target sound? It is a method to objectively evaluate by calculation. I think that it can be used to evaluate the performance of the limiter and the performance of the mp3 encoder.
The zip file that can be downloaded from the link below contains test data. According to the license notation in the zip file, it seems that it should not be used other than evaluation of PEAQ implementation.
"Audio Commons Initiative" is an initiative aimed at delivering audio content provided under the Creative Commons license to the creative industry. I do not know the meaning of Initiative, but I think that it is probably used in a sense like organization.
Audio Commons introduction summary
· Reusable audio contents (sound effects, field recordings, audio samples, songs) should be originally more, but there are few current situations.
· The cause is a lack of shared culture on content reuse and technical problems (search, license clarification).
· Audio Commons Initiative solves those problems and encourages reuse of audio content.
Audio Commons Ecosystem (ACE) is an ecosystem of audio content, users and tools supported by Audio Commons Initiative. Audio Commons Ecosystem facilitates the reuse of audio content provided under the Creative Commons license in professional, non-professional and personal areas.
Character of ecosystem
Content Creator: a person who creates content. Composers etc.
Content Provider: the person who delivers the content. Jamendo, Freesound, etc.
Content User: The person who uses the content. Game producers etc.
Audio Commons ontology
Audio Commons ontology is an ontology of audio content used in Audio Commons Ecosystem. With Audio Commons ontology, you can annotate audio content (give metadata).
Participants in Audio Commons
In addition to the university, people belonging to Waves, Jamendo, AudioGaming are participating in Audio Commons.
Multiple audio samples are visualized in two dimensions. A circle represents one audio sample and is arranged so that sounds resemble one another. Clicking the circle will sound. If you click a circle nearby, a similar sound will sound, and clicking on a circle in the distance will sound a sound that is not similar.
If you can use it from DAW, it seems easy to select audio samples.
It seems that it converts the input sound so that it is easier to hear and output it. If you estimate from the images posted on the citation source, there is a possibility of boosting the important band for listening by EQ.
Principle of "Comuoon" 2 - Transverse Wave Speaker
"Susumushi speaker" is a speaker that applied the principle that Sumushi grinds wings and produces sounds, seems to be a hint of Comuoon.
I found a paper by Prof. Yoshihiro Muto, who introduced "Susumushi speaker" in the above mentioned article. In the thesis, the acoustic characteristics of the underlay bent to the music box is analyzed. It is similar to the structure of "Mirai speaker". Is the root of "Comuoon" and "Mirai speaker" the same?
"Transverse Wave Speaker" having a structure combining a piezoelectric element and a diaphragm is also introduced. Perhaps this is what is called "Sumushi speaker" or "Yokonowa speaker"?
It seems that the result of measuring the sound intensity for each distance is consistent with the result when assuming that transverse waves in the air are generated. However, since the method of deriving the three parameters used in the simulation is not described and the validity of the derived parameter is not discussed, it is not known whether the simulation result can actually exist or not.
Some speakers have speakers that can generate plane waves. As a result of examination, it is called by various names such as flat speaker, flat speaker, plane wave speaker, etc. There seems to be no unified way of calling.
Supposing that the essential point of "Mirai speaker" and "Transverse Wave Speaker" is plane waves rather than transverse waves, other speakers that can generate plane waves are likely to be effective for hearing loss patients as well.
I examined speakers that I can purchase individually.
If a plane wave comes out from "Mirai speaker" or "Transverse Wave Speaker", there is a possibility that the plane wave can be heard for the patient with hearing loss. If so, think about the reason.
Hypothesis 1 - Because it is difficult for the volume to attenuate with distance
Compared to spherical waves, plane waves tend to attenuate in volume depending on distance. Even if it is far from the speaker, it is easy to hear it, so there is a possibility that it may be easy for the hearing impaired patient to hear.
We can verify this hypothesis by comparing the easiness of listening with the plane wave and the spherical wave adjusted to the same volume at the position of the subject with respect to the subject in the same place.
Hypothesis 2 - Volume change when the ears are slightly moved is small
It is similar to hypothesis 1, but due to the influence of ear structure and room reflection, the plane wave is compared with the spherical wave, the volume change in the inner ear when slightly changing the direction of the ear or the ear position compared with the spherical wave There is a possibility that it is small.
There seems to be no one who lives with the ear position and direction fixed perfectly, so the magnitude of the volume change when moving them a little can affect the ease of hearing.
Experiment of hypothesis 1 can be verified if it is done with perfectly fixed condition of ear position and direction and condition moving little by little.
Hypothesis 3 - Because there is little reverberation
Plane waves have strong directivity, so there are few reflections in the room and reverberation sound may be reduced. There is a possibility that the amount of reverberation influences the ease of hearing.
It can be verified by measuring the amount of reverberation of the spherical wave and the plane wave and comparing the hearing easiness with the sound corrected so that the reverberation amount becomes the same with the reverb and so on.
Hypothesis 4 - Because the reverberation is simple
It is similar to hypothesis 3, but there is a possibility that the structure of the reverberation influences the ease of hearing rather than the amount of reverberation. For example, with reverb and short delay, the ease of hearing may be different even with the same amount of reverberation.
It is possible to verify by measuring the impulse response of the spherical wave and the plane wave and comparing the hearing easiness with the sound that simulates the structure of the reverberation by convolution and so on.
We introduced a speaker "Mirai speaker" for patients with hearing loss and similar products.
※ Price etc is information at the time of article writing. For the latest information please visit the official website.
When the member registration is completed, the download link of the SoundBridge installer according to the OS used is displayed. If the OS automatic judgment is wrong, you can download the SoundBridge installer for each OS from the My Accounts screen.
Launch the SoundBridge installer and install it according to the screen. All default settings are OK.
When you start SoundBridge, the following screen will appear, so enter your account information and log in.
SoundBridge sample project
When installing with the default setting, the sample project is installed in the Documents directory. Open this from the File menu in the lower left corner of SoundBridge. Some projects could not be opened due to errors. ExampleProject.soundbridge opened.
I will play it.
If you try to edit the sample project popup prompting you to register in SkyTracks.io is displayed and you can not edit it. Please open a new project if you want to edit it.
Piano roll of SoundBridge
It is the same as a general DAW piano roll.
It is the same as the general DAW Mixer.
What is SoundBridge Academy?
SoundBridge Academy is a paid online video material that you can learn about music production. It may be useful to attach the DAW project file. It might be possible to see a view called DAW with a rich paid manual.
We will introduce movies and demonstration audio that understand the effect of "ClearMixer".
"ClearMixer" introduction video
"ClearMixer" introduction video commentary
In the movie, Band Noise (narrowband noise) and Sine Wave (sine wave) are ringing at the same time. Usually in this situation, you can hear turbidity when the volume of Band Noise and Sine Wave are about the same, but demonstrate that using "ClearMixer" reduces turbidity.
Control of interference by "Intensity" parameter
From 0: 21 to 0: 37, I manipulate the "Intensity" parameter of "ClearMixer" and control interference between Band Noise and Sine Wave. Increasing the "Intensity" of "ClearMixer" decreases the volume of Band Noise in the band where Sine Wave is ringing. I think that it is easy to understand when listening with headphones. You can see it with the spectrum analyzer of "ClearMixer" shown in the movie. This makes Sine Wave easier to hear.
Switching output sound by "Output" parameter
From 0: 38 to 0: 47, the output sound is switched by operating the "Output" parameter of "ClearMixer". Sounds that Dry does not process with ClearMixer, and Wet represents sounds processed by ClearMixer. Wet - Dry represents the difference sound before and after ClearMixer processing. Interference represents the interference component. I think that interference reduction effect is easy to understand when listening to Wet - Dry.
Listen only to Band Noise
From 1: 00 to 1: 12, I mute Sine Wave and play back only Band Noise, then I control interference. I think that the interference reduction effect by ClearMixer is more clearly understood by Sine Wave being muted.
Change the volume of Sine Wave
1: 18 ~ 1: 38, the volume of Sine Wave is changing. Looking at the spectrum analyzer of "ClearMixer", you can see that the interference reduction amount of Band Noise changes depending on the volume of Sine Wave. I think that I feel almost uncomfortable because it changes smoothly.
"ClearMixer" demo audio
Audio after applying "ClearMixer"
Audio (over-applied) after applying "ClearMixer"
Although the difference between the original audio and the audio after applying "ClearMixer" is a subtle difference, I think that it is easy to hear by paying attention to the interference between the base overtone and the midrange of the piano. I think that it is clean as a whole.
After applying "ClearMixer" I think that you can understand by listening to audio (excessive application), but if interference is excessively reduced, it will make a slightly unpleasant sound. I think that it is good to control the amount of interference while looking at the "Total Interference" index of "ClearMixer". For reference, "Total Interference" of the original audio is about 15%, "Total Interference" of the audio after applying "ClearMixer" is about 8%, "Total Interference" of the audio after applying "ClearMixer" is about 3% is.
I think that it is merit that "ClearMixer" can be used to objectively mix while watching indices.
AI Mastering has been updated. Below is the update content.
Mastering delete function
The function to delete mastering was added. You can delete from "Mastering list screen" or "Edit button" on each mastering detail screen. Please note that it can not be Undo. ※ It can not be used in the smart version
Mastering protection function
We added a function to protect mastering and prevent it from being automatically deleted. You can protect up to 100 at the same time with the premium plan limited function. The retention period is the contract term of the premium plan. ※ It can not be used in the smart version
How to use
You can "protect" from the "Edit button" on the mastering list screen or each mastering detail screen.
Whether or not it is protected is indicated by "Status column" on the mastering list screenIn can be confirmed.
It is not intended to store important data using the protection function. I recommend downloading important data and keeping backups.
Video encoding with fair priorities
We decided to do video encoding with fair priority. Even if there are more masters, it will be hard to be affected.
The mastering process itself had been done with fair priorities, but its priorities were not applied to video encoding. Therefore, when there were someone who mastered, the sound source was completed as soon as possible, but there was a phenomenon that the moving image was slow to be completed. It is a fix to solve it.
Changing display contents of settlement list
The display content of the settlement list on the "User setting" page was corrected.
Specifically, when opening the PayPal link but not completing the settlement, "unpaid" was displayed, but it was hard to understand, so it was not displayed at all in the first place.
Fixed bug where login failed
Fixed a bug that login failed on the desktop version or some browsers. We apologize for any inconvenience. Please download the latest version from the link below.
"Limiter error" is the error of sound caused by AI Mastering's limiting process .
Generally, if the sound pressure is raised too much with the limiter, the sound will be distorted, but the limiter error quantitatively expresses that distortion. It is designed based on psychoacoustics so that it approaches the human sense as possible. The unit is dB. If the limiter error is 1 dB or less, you should not be able to hear the difference.
The figure is simplified, but in fact it calculates it in a slightly more complicated way.
Cause of occurrence of "limiter error"
The cause of the limiter error is that the waveform is distorted as a result of attempting to bring the sound pressure closer to the target sound pressure while limiting the peak of the waveform to less than Ceiling by limiting processing.
There are some sounds that are distorting and distortion-proof with limiting. Whether distortion is easy depends on the limiter, but in the case of AI Mastering, percussion instruments are hard to distort, bass, close to sine waves, sustained sounds are easy to distort .
Tips for not generating "limiter error"
Decrease target sound pressure
Lowering the target sound pressure makes it easier to reduce the limiter error. This is the best when you can lower the sound pressure.
"Ceiling mode" is set to "peak"
With AI Mastering's custom mastering, you can choose between limiting based on True Peak or normal peak with the "Ceiling Mode" option.
Because it suppresses the peak more conservatively based on True Peak, Ceiling goes down, and limiter error tends to occur.
Limiter error can be reduced by setting "Ceiling mode" to "peak" . Instead, it is more likely to be distorted by lossy compression.
Small base peak
The bass is a low-pitched sustained sound close to the sine wave, so it's easy to distort at the limiter.
Although it is not limited to AI Mastering, if you use an amp simulator etc. to increase the overtones of the bass , you can reduce the peak while maintaining the audible volume. Instead, the sound quality changes.
I do not care that the "limiter error" is large
There are musically acceptable and unacceptable cases in which "limiter error" occurs.
For example, the sound of the bass is temporarily too large and the peak pops out, so if you lower the sound of the bass overall, "limiter error" will occur but I think that it is musically acceptable.
On the other hand, I think that it is not musically acceptable in the case of distorting it by forcibly suppressing the base peak in the same situation.
"If there is no limiter error occurred, there is no problem" is established (at least though it is designed to be established), "There is a problem if a limiter error has occurred" is not established .
So, it is also a hand that you do not mind that "limiter error" is big if you listen with your ears and have no problem.
Improvement plan "Limiter error spectrogram"
"A limiter error" displayed by AI Mastering is the average of the entire sound source. In reality, the local "limiter error" differs for each time and band. If there is something like a spectrogram of "limiter error", you can see at which time and within what band "limiter error" is occurring, you can easily identify the cause.
It is under consideration.
We introduced about AI Mastering's "limiter error".
The initial version of iZotope RX was announced in 2007, with the release of RX 7 in 2018, the function of automatically extracting vocals, bass, percussion etc from 2 - mix sound source and readjusting the volume was added.
According to the following information, it seems that neural net is used for sound source separation algorithm.
The evolution of our intelligent audio technology continues with the Music Rebalance module in RX 7. Music Rebalance is a new tool that gives users the ability to boost, attenuate, or even isolate musical elements from audio recordings. It is a natural progression of our neural network-based source separation technology, first introduced in the forms of Dialogue Isolate and De-rustle in RX 6 and now evolved to extract multiple musical components from complex mixes.
BlueLab REBALANCE is a VST that allows you to adjust the volume of each 2 - mix sound source divided into 4 vocals, bass, drums, and other instruments. It is released in January 2019. It is VST so it can be processed in real time.
I tried it, it was lower quality than PhonicMind. I guess, I guess you are using a traditional algorithm.
I examined the share of DAW. Global, Ableton Live, Logic Pro are popular, and in Japan it turned out that Cubase, Studio One is popular.
Share of DAW
It summarized the share of DAW. Based on the questionnaire result of ask.audio in 2015 and 2018 and the questionnaire result of dtmstation.com in 2016 and 2017.
DAW's Twitter followers
I compiled the number of followers for DAW's Twitter account.
If there is a Twitter account of DAW, we have plotted the number of followers of DAW's Twitter account, the number of followers of company's Twitter account if there is no twitter account of DAW and Twitter account of DAW, 0 if neither. Please be aware that because the company's Twitter account tends to have more followers than DAW's Twitter account, it is not necessarily popular because there are many followers.
DAW release year
I summarized the year when DAW was released.
Many companies have made Midi Sequencer as the predecessor of DAW, but in that case the release year of Midi Sequencer is the release year. Digital Performer is making the score production software "Professional Composer" in 1984 as the predecessor of Midi Sequencer, but this is not included in the initial release.
Share consideration of DAW
Cubase and Studio One are popular in Japan
According to the questionnaire result of dtmstation.com, Cubase and Studio One are popular in Japan. I was expecting that Cubase and Studio One would be more sensuous in Japan, but the results were exactly as expected.
Ableton Live is popular globally
According to the questionnaire result of ask.audio, Ableton Live is popular globally. Although this result did not come to the pin sensually, as a result of seeing the number of followers of Twitter and SimilarWeb data, Ableton Live seems to be popular indeed. ※ Similar WEB data are not posted.
Why is popular DAW different between Japan and global?
There is a possibility that it is making a difference between the global and Japanese DAW share whether it is focusing on Japanese marketing or focusing on Japanese marketing. Differences in the popular music may be one of the causes.
Reason for Ableton Live being the most popular globally
I tried using Ableton Live
I actually tried using Ableton Live to explore the reason why Ableton Live gained popularity globally.
As a result, compared to Cubase, Studio One, FL Studio, no big difference was found. Places where patterns can be placed are close to FL Studio, piano rolls and mixers are close to Cubase and Studio One. It may be that you do not know the difference unless you use it for a long time.
Not the best when it comes to dealing with actual audio clips, as opposed to MIDI. Still very capable, but a little more scattered and convoluted than Ableton and Logic.
Honestly? I use FL because I torrented a copy in high school, and got used to the workflow. I did eventually buy a copy because I’m not a douche. I use ableton as well now, because it’s much better for working with audio clips and live performance.
There is also opinion that Ableton Live is actually easy to use.
Ableton Live is suitable for hip-hop production
Now that being said….Ableton….w/Push 2 is the goat DAW if you are into sample based production…specifically chopping samples…real hip hoppy stuff. My beef with Ableton is its archaic windows 98 looking interface.
Using Ableton Live with Ableton Push 2 seems good for hip-hop production. There is a possibility that Ableton Live is popular in the hip hop popular in the United States under the trend.
Ableton Live users are friendly
Ableton user forums are generally quite helpful and the community will treat a newcomer with some respect. You better put on your bulletproof vest when using the FL Studio user forums because I’ve never seen that many arrogant pricks in one place in all my life! They’d rather ridicule you than answer your simple question (even the Image-Line employees!). Thankfully I know the software pretty well now so I avoid their forums at all costs.
Ableton Live users seem to be more friendly than FL Studio users.
Ableton Live encourages artist growth
What makes Ableton makes so good is number 1 its relationships with simple and complex ways of doing things, it has a germen quality about it t, in other words, the UI, the look and feel is very high, enabling high flow ie its easy to “waste” hours playing with sounds, there are crucial in becoming a better producer, a weekend playing and making sounds rather than “songs” is more valuable in learning, than a 6 month class (or do both)h.
Ableton Live Initial Release Date: https://en.wikipedia.org/wiki/Ableton_Live
Logic Pro Initial Release Date: https://en.wikipedia.org/wiki/Logic_Pro
Pro Tools Initial Release Date: https://en.wikipedia.org/wiki/Pro_Tools
Cubase Initial Release Date: https://en.wikipedia.org/wiki/Steinberg_Cubase
FL Studio Initial Release Date: https://en.wikipedia.org/wiki/FL_Studio
Studio One Initial Release Date: https://en.wikipedia.org/wiki/Studio_One_(audio_software)
Reason Initial Release Date: https://en.wikipedia.org/wiki/Reason_(software)
Reaper Initial Release Date: https://en.wikipedia.org/wiki/REAPER
Sonar Initial Release Date: https://en.wikipedia.org/wiki/Cakewalk_(sequencer)
Garage Band Initial Release Date: https://en.wikipedia.org/wiki/GarageBand
Bitwig Studio Initial Release Date: https://downloads-as.bitwig.com/stable/1.0.1/release-notes-1.0.1.html
Digital Performer Initial Release Date: https://en.wikipedia.org/wiki/Digital_Performer
I examined the share of DAW.
I found that the popular DAW is different between the global and Japan. Global, Ableton Live, Logic Pro are popular, in Japan Cubase, Studio One is popular. There are many reasons for that, but I did not know what was clear.