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Monday, February 24, 2020

Creativity Lost


As a teacher, I have observed interesting trends in my career. One of the more frightening trends has been the fear of creativity. 
 When I first started teaching, the projects I would assign were very open-ended and allowed for much creativity. The projects ranged from mixing assignments to compositions. For example, an assignment might have a given theme in which the student would compose a piece of music inspired by the subject. Student submissions would range from hip hop, to rock, to jazz or even EDM. 
 In my observations, I have found that students feel more comfortable with rubricked assignments rather than open-ended creativity ones. For example, one of the assignments for a music technology course is to create a music concrete piece that used 6-10 original sounds. Music concrete is a style of music in which found object sounds are manipulated and altered to create an art piece. The students record the sounds and then shape and organize them into a piece of music. 
 But I think we can question if releasing the rubric to students has hindered the creative process. Students seemed focused on checking down the list of grading requirements rather than explore the possibilities of creating a unique piece of music. Since moving towards a more purpose-focused assignment paradigm, I have found that student engagement in the classroom has gone up since they now have to concentrate on proper usage of the tools instructed in class. 

These are the typical questions get.

Q: How long does the piece have to be?
A: I typically answer this question by referring to previous assignments. In my intro classes, I usually teach a variation of ABABB music structure revolving around a "B" segment of 16 bars. I often say that the project can be structured as the students wish. However, most students end up following the old structure rather than explore new musical arrangements. 

Q (Follow up): How long does the piece have to be to get an A?
A: "However long that you think it needs to be." The follow-up question is typical of 21st-century students. As students who are rubric driven try to navigate the more open-ended types of assignments, they focus on the grade rather than the creation. 

Q: How many tracks does it need to be?
A: "As many as you need to create your vision." Today's student often finds themselves paralyzed by open-ended rubrics. If the student does not have a specific goal to accomplish to which in this case would be track count, then they will either refer to a previous assignment or reask the question. 

Q: (Follow up) Can I still get an A with just one track since there is no minimum?
A: I liken this question to that scene in the original Jurassic Park movie, where the dinosaurs are testing the perimeter to look for weakness. This question is difficult to answer as a teacher because without an explicit assignment goal; you might have to answer yes. Is the purpose of your assignment to create a piece of unique music? If so, then a student could potentially make something highly unique without recording more than one track of audio or music. However, if the assignment goal is to teach the student to work with multiple tracks, then the answer would be no, and you would have to define a minimum. 

Q: Can I use samples?
A: A sample is a fragment of any commercially recorded music that is edited to down to a smaller portion. These samples would then be looped to create a piece of music that often closely resembles the original composition. I find that explaining the purpose of the assignment to the students gives them clarity about the focus, which, in this case, would be to develop a unique piece of music. 

Q: How should I process the sounds?
A: My response to this question is something like this: "As you wish." I often find that students are hesitant to put effects processing on their tracks. The main reason given by the students is, "I am afraid of being wrong." This lack of confidence could be due to inexperience with various effects. Giving the students low-pressure opportunities such as in-class assignments and exploration sessions would help the student gain confidence in applying the effect correctly. 

Q:(Follow Up) Did I process this sound correctly? 
A: My response to this would be, "Does it fit into the piece you are creating?" In my experience, this again points to a lack of confidence in using signal processing. However, in this case, the student is looking for guidance on the correct combination of effects that will lead to the high letter grade. I have found that if you say "yes, that is processed correctly," then the student will apply the same effects across all their tracks in their project. The goal is not to insert several effects as described in a recipe book, but to use them as treatments needed to achieve the desired tone. 

Challenge. 

 What these questions point towards is a lack of clarity with the purpose of the assignment. A rubric only gives the student your criteria for grading the homework. But disclosing the rubric can lead to "objective fixation," where the student only fulfills the requirements of the rubric and loses sight of the quality of the composition. Giving the students a clear purpose of the homework will lead to more creative assignments. We want the students to focus on how to use the tools, rather than just using the device for usage's sake. 

Monday, March 25, 2019

Money

I did gig about 5 years ago where the CEO of a big company asked what motivated his employees to work hard? He answered for them "Money! We all like Money! If we didn't like money, we wouldn't be here..."

This comment really stuck with me to this day. It might have been a throwaway line" to this big CEO, however, it resonated with myself because it has never been a motivation to my work in all honesty. I was really lucky to know what I wanted to do for my career at an early age. I always played piano and in high school my teacher Mr. Hamill took us on a field trip to Berklee college of Music. Here I found out what Music Engineering was and I immediately fell in love. I was a science geek in grade school and loved music as well. My decision was set firm, I wanted to be an audio engineer so I could use technology and play with music at the same time.

Throughout my high school career, I directed every decision I made to get into music college and get into a music engineering program. When I finally did, my college career was dedicated to getting a job in the industry so I could sit behind a console, play with buttons and have the ultimate control over electrons and sound pressure waves.

Money was never my motivation, money always seemed to be there, it might never have been enough, I might have been "poor" in some people's eyes but I never was homeless and I never went hungry. I always made my car payments and I had some extra to take my girlfriends to a nice dinner. I had a 401K, a stable income, but it was not my "motivation" for working. I would have done the work for free, because that's what I always wanted to do, I could never dream about doing anything different.

I wasn't a dummy however. The first thing I did when I got out of college is hired an accountant to do my taxes because I was self employed and freelancing. I was lucky to have a great mentor who taught me about tracking expenses and not letting people walk all over you. "Get paid what you are worth, and don't take anything less than market value because undercutting the rest of us will get you on the 'I don't want to work with this guy' list real quickly." he said. So what did I do?

I worked for free...
To a point...

When I needed more experience, I worked for free. When I felt comfortable, I used "standard rate". This showed my clients that I was serious about the work, and not just the Money... because I was serious about my art. But, I found that my clients not only respected this but were more apt to pay standard rate despite my little experience at the time because they saw the time investment I put in.

So, after hearing this speech by Mr. CEO, I rechecked my money situation. I'm still ok. :) The money is there, not much of it, but it's there and I am comfortable with my life and my career. So, Mr. CEO... Money doesn't motivate me, but it's a nice byproduct of enjoying what I would be doing normally.


Monday, March 18, 2019

Working with Virtual Guitars


Recently I have been experimenting with a lot of virtual plug-ins for guitar. Let's look at why the guitar is such a unique instrument and why it sounds so good through an amplifier.


Feedback
The biggest interaction we see with the electric guitar and amplifier system is the feedback loop that is inherent. The sound produced by the metal strings is picked up by the pickups, then fed down the guitar cable into the amplifier, which then produces a much higher SPL into the room. This sound then has the potential to hit the guitar strings again and sympathetically vibrate them causing the sound to be picked up again by the pickups. This is very apparent in the traditional metal guitarist holding his or her guitar up to an amplifier to get the system to feedback. Even when far away, the slight feedback loops that occur at higher frequency levels contribute to the overall sound of the guitar, thus something that is lacking with an electric guitar plugged directly into a computer or tablet and using a virtual instrument to produce the amplifier tones.

Recording
When recording, the interaction of the guitar and the amplifier as well as the floor producing some interesting reflections and feedback options. Particularly, as Alex Case stated in an AES journal entry, the interaction with the floor and vs the direct sound from the amp produces a comb filtering effect which can either aid or hamper the recording process.

So, we can use this interaction to be part of the tone, or we can try to reduce the interaction by adding carpeting, raising the amp or reducing the distance of the mic from the amplifier. We can also play with the distance to see if the overall tone might be improved due to the enhanced comb filtering.

Least Significant Bit
The other issue that we have with virtual amplifiers is the problem of the quantization effect of the least significant bit. Think about it this way, you have a light dimmer, as you turn the dimmer up, more light comes into the room. This is analog. in digital, you have to flip the light switch many times a second to get the light to continuously be in the room. In a digital recording system, we have to worry about what happens at the 0 to 1 Bit portion of the bit depth plot. When the audio signal dips below the 2 and 1 bits because it is reducing in volume, the computer remembers acts as 1's and 0's, electricity on or off. At 1 bit, it still thinks this audio is "on", but below the 1 bit, in analog, there is many decimals for the audio to hang out at before it goes to nothing. In digital land, it is an electrical limbo, and the computer is not sure what to do with it. We get a quantization error. To overcome this, we put a virtual noise floor called Dither into the 0-1 bit depth, so technically the computer is always quantizing and sampling, it never stops and shuts off the light switch.

But in recording the guitar, the natural interaction of the amplifier which might make those last notes ring out a lot more; would be cut off by this quantization error and reduce the signal below the dither protocol, thus we might have reverb tails end quicker and less natural.

What can you do?
How do we make those virtual guitars sound more natural? There are a couple of steps we can do.

1) Add a small amount of delay with significant feedback to the guitar in order to extend those big long drawn out notes. This will help the virtual plugin handle the LSB (Least significant bit) and extend your distortion or FX times to a more natural sound

2) Add reverb pre-virtual plugin. This doesn't really apply to fast runs, but for those long drawn out notes and chords, it sure will. Automate the reverb in so it only pops in during the parts where you are struggling with keeping the guitar sustained.

In the end, we use virtual instruments for a number of reasons; we live in apartments and can't make loud noises, we want to change the tone of a sound, we don't know how to play the guitar so we use an instrument we can play and try to make it sound like a guitar. However, nothing can replace a well-played guitar, but if we think about the specifics of what makes it such an awesome instrument, then we can sure try to get close.


Monday, March 11, 2019

Welcome Back!

Wow, I can not believe it has been so long since I posted on here.

Let me first talk about what I have been up to.
Over the past 3 or so years, I have been focusing on writing my dissertation at U Mass Lowell. This process has been extremely time-consuming. Not only has it entailed long nights, but very early mornings and many hours in safe writing spaces, ie: Starbucks, libraries and other distraction-free zones. Now, as I am starting to transition out of that process into the real world again, I find myself wanting to explore writing and education with renewed vigor.
I have also accepted a tenure track position at Salem State University as the Coordinator of Music Technology. This has also been time-consuming but very rewarding as I am working with some amazing students and some amazing colleagues.

New Direction
As I have been thinking a lot about how to get the message of music technology out to a greater audience, I found myself exploring Twitter, Instagram and ultimately, coming back to this blog. When I started this in 2007, I had an idea of this blog being a reposting hotspot for industry news. Now, as I see it 12 years later, this blog should be about a personal journey of growth and education. I am TheAudioPod and it is me, and all of you. We learn things, we grow and we evolve as time goes on.
This is where I want to take this blog. I want to use this platform for inspiration and to help you all create music and art in a way that is unique and appropriate for your message.

Updates
Well as you can see, the updates make this blog a bit more hip (well maybe not). New Logo, new color scheme and a more mature voice (hopefully). I am excited to take this journey with you into creativity and look forward to interacting with you on a deeper experimental level.

In the meantime, visit myYouTube and check out some of the things I have been doing over the past 2-4 years. Hopefully, you can gain some insight and be inspired to create!

See you soon

Mike