The “Hum”

The Fairview Cove Container Terminal – Halifax NS

This story goes back at least 45 years! When I lived on Braeside Lane in the late 70s I found myself experiencing a definitely audible “hum”, particularly in the middle of the night, which drove me crazy. It sounded like a very large diesel truck idling just outside my building.

A low frequency hum, almost a vibration, just on the threshold of human hearing. It’s not particularly loud. In fact, you might not have even noticed it yet – but once you do, you can’t stop hearing it. It sounds like a truck, idling on the street in front your house. Or the atmospheric din of an airplane flying overhead, that never gets further away. You can hear it when you’re outside, but it seems louder indoors, and particularly at night, when you’re lying in bed. Maybe it keeps you awake.

If you do hear it, you’re among the roughly 4% of the world’s population affected by “the Hum”, a frequently reported but little understood global phenomenon.

[From The Guardian – July 7 2021]

I struggled with the “hum” for a couple of years before finally I had the brilliant idea to call the acoustic engineers at TUNS (Dal) to see if they were aware of the “hum” and what they knew about it. Not much, it turned out, but they were interested.

Two guys came to my house with some fancy recording equipment for me to use after, say, 2:00am to see if I could capture the noise that for me was so audible and irritating. I recorded the “hum” for a week, after which they came back, collected the microphone and recorder, and analyzed the recordings.

Then they reported back to me. They could definitely detect a low pitch noise (somewhere around 40Hz – they were actually more specific but it’s been so long ago I can’t actually remember the precise number) around 5-10 decibels – loud enough for some people to hear even at that low pitch. They had no idea what the source of the sound was but they assured me it was real.

My Braeside Lane townhouse was constructed on bedrock – a continuation of the Halifax bedrock on which the Fairview Cove Container Terminal was built – so it was not inconceivable that the vibration made by the large cranes or the idling container ships docked at the port, particularly at night, might be transmitting a sound through the bedrock and reaching my house.

No way to prove that theory but I took comfort in knowing the “hum” was a real sound.

I was fortunate, in that I discovered a “node” of that vibration that happened to occur at the foot of my bed, about the diameter of a 15″ platter. Well, that helped a lot – a silent spot in the middle of the thrumming low pitch vibration was a godsend – I was able to sleep comfortably with my head at the foot of my bed and be oblivious to the “hum.” (Although it took some time to feel comfortable/safe sleeping with my head in the middle of the room!)

When I moved to Winnipeg a number of years later, and was looking for a place to live, the first thing on my list of things to watch out for was any “hum”! The realtor and I would visit a place during the day. I’d ask for silence as I walked through the house or apartment trying to listen for any “hum” particularly in the bedrooms. I wasn’t surprised to encounter a variety of “hums” – refrigerators, air conditioners, traffic, railway lines – a city is full of “hums”. I was trying to listen for that unidentified low pitch “hum” I wanted to avoid. I drove the realtor crazy asking to return to a location late in the evening so I could listen to the ambient sound before I’d consider purchasing. I finally found a condo on the Assiniboine River that fit the bill – I was never bothered by the “hum” during the four years I lived there.

When I returned to Halifax in 1997, same thing. House hunting, making sure I wasn’t also buying a “hum” to go along with the house. Again I was lucky. My Chelsea Lane townhouse, although built on the same bedrock as Braeside Lane was further from the container terminal, and “hum” free. I wasn’t bothered by any “hum” for the 20 or so years I lived in it (there was a large CBC radio antenna not far from my place, but I never encountered a “hum” emanating from it).

In August 2016 I moved into an apartment building, 6th floor (top floor), checked for “hums” – thought I’d managed to escape once again. However, on Oct 19, two and a half months later, as I was returning to bed from a trip to the bathroom at 3 in the morning, I was assaulted by a very pronounced “hum” – it persisted for the rest of the night and into the next day. I could hear it – I could feel it thrumming in my head. I could block it out if I turned on the radio, which I did. It wasn’t the highway traffic on the other side of the building – that was intermittent, and besides I really didn’t hear the vehicles, even when standing on my balcony. It might have been the air circulating fans on the roof close to my apartment – but then why hadn’t I heard them when I checked before moving in?

The “hum” was everywhere in the apartment, I could not find a silent node anywhere. I tried identifying the pitch of the “hum” using the keyboard on my iPad. It seemed to blend as a harmonic with F/F#/G two octaves below middle C – I’d lose the “hum” when I played those notes, although I couldn’t pin it down precisely (C1 – three octaves below middle C has a frequency of 32.70 Hz – which is close to the acoustic range mentioned in the Guardian article; it’s also a harmonic with F so it’s possible the base pitch of the “hum” is somewhere around C1 with harmonics further up the scale).

The “hum” never quite subsided, but I discovered an App for my iPad – White Noise – which produced a range of backgrounds to block offending noises. The sound which worked best for me, believe it or not, was the ambient sound of the International Space Station! That, combined with “grey noise” which I was able to pitch closer to F2/F#2/G2 worked to mask the “hum” – so just before turning out the light, I’d turn on White Noise and run it for the night. It allowed me to fall asleep. I used the App nightly for a couple of years and then the “hum” seemed to disappear. I stopped turning on White Noise before getting into bed.

The “hum” returned last evening! At 9:40pm – there it was again – that loud low pitched thrumming – I actually went outside to see if I could see a large diesel truck idling nearby – nope, no vehicles anywhere near the front of the building. Even turning up the volume on the TV couldn’t block the “hum”. I was getting ready to turn on White Noise when around midnight the “hum” subsided. I went to bed and was able to fall asleep.

However, this morning, it was present still, although at a lower level. I can ignore the “hum” during the day – I keep the radio on, listening to CBC or some podcast or other. It generally doesn’t bother me too much in the evening, either, the volume of the TV (to which I knit) generally masks it. And I have discovered that the programs delivered by Brian Cox (professor of particle physics in the School of Physics and Astronomy at the University of Manchester) put me to sleep quite quickly! As does David Attenborough. I’ve recorded a collection of programs by both men, which I set to play for a half hour, to mask any disturbing “hums” which might interfere with me falling asleep.

I’m waiting to see if the “hum” is present again this evening! It was very loud and irritating last night. I have found ways to mask it, making living with it bearable.

I just wish the “hum” would simply go away!

Making Progress

I started the morning by cutting a gazillion 2″ squares of fabric from the many strips and scraps I’d collected which I hoped would help me fill in the background on the wall art piece. I needed a lot (although I didn’t count what I needed but I’m guessing it must have been close to 140 squares (the panel is 16 X 12 = 192).

Then I began laying them out, a few at a time, trying to create some kind of flow to the background.

As you can see the pieces are pinned to the fusible interfacing – I didn’t want to fuse them until I was certain I had the colour flowing as I wanted it – nothing jarring. I still have to walk around it some more before I start pressing the squares in place. Likely on the weekend I’ll get to that.

I didn’t plan it, but I like is the way the dark fills in a slightly off-centred “U” shaped space at the bottom, and when the panel is sewn together and the blocks end up at 1 1/2″ the light colours should blend reasonably well.

So how do I plan to fill the empty space? With a couple of California poppies!

The image looks small but its height is 14″ – the panel will finish at 18″ X 24″ (it’s currently 24″ X 32″) so the flowers in relation to the background will be a better fit. I would print this image on fabric (using my inkjet printer), then fussy cut it carefully before fusing it to the background, and thread painting it in place.

There is another possibility I’ve been working on – I’ve created a machine embroidery of 4 yellow poppies which are also ~ 14″ in height which I could embroider in position directly on the background:

I printed it out, roughly cut it, to see how it would look on the background

Impossible to tell which might be best until I get the background sewn. The current limitation I have is my largest hoop will create an embroidery 360mm in height (just over 14″). If I decide to use the embroidery, I may have to rework it by splitting it in two in order to enlarge it – not sure how well that will go but if the 14″ is too small it’s something I may have to try.

Next step is to fuse the squares in place, then construct the background panel.

iPhone Photography

The dogwoods have been spectacular this year. I never really noticed before how many there are around the city. This one is in my friend Mary Ann’s front yard. I love the hint of pink with the magenta edge. This tree is in a shady spot but it gets sunlight mid-afternoon. Here the sun is both catching some of the flowers directly while others are backlit. Makes for an interesting photo.

This dogwood is in another friend’s backyard. It was in full splendour a week ago.

I’ve driven past a number of glorious pink trees – just not taken the time to stop and grab some photos. Too busy getting somewhere. At least I noticed them.

I noticed the daisies beside the big rock next to our driveway on the weekend but didn’t stop to catch an image. The next couple of days were overcast but when I returned home from my morning Aquafit class the sun was bright and the daisies smiling. I parked the car and got out so I could grab some shots. I cropped several photos but lost the shadows on the rock which contrast with the daisies.

Socks, As Usual

I just keep knitting. I CANNOT sit in front of a TV without something in my hands that doesn’t require my full attention but lets me feel productive. Finished this pair of socks a week ago. They’re not as drab as they look, there are hints of magenta and navy blue in the variegated yarn. They weren’t too boring to knit as some socks are from time to time.

This pair finished, I started on the next. I’m ready to turn the heel on the first sock, this evening.

I’m Still Here

I last posted June 22 – just over two weeks ago. Where have the days gone? We’ve had some lovely weather, some not so lovely weather (but I bet folks on the west coast would have given anything to have had a few cool, foggy, misty days – so no complaining).

I’ve been working away at the usual stuff – I was teaching a class on building a table runner/wall art textile piece using “postage stamp” squares. The class was originally scheduled for late April/early May but didn’t happen because of our COVID-19 lockdown. But I’d prepared some samples to illustrate possibilities.

Block 1
Block 2
Block 3

I’d planned a 5 X 5 array but when I’d sewn one of the blocks together (the top block #1) it finished too small to be useful for a table runner – a 7 X 7 array would be better. So I created some instruction for the gals outlining how to prepare for the class, what to bring, etc. I did not add to my samples or create new ones – they could get the idea from what I’d done.

The first day the women chose from their plastic sandwich bags containing their 2″ squares and arranged layouts for their table runners, pressed the squares to a piece of quilters grid fusible interfacing and began sewing the blocks together by stitching the rows, shaving off the fold, pressing the seams open, then stitching the columns, shaving off the fold, and pressing those seams open. The technique gives you perfect joins which you don’t always get if you just sew blocks together in the usual quilting fashion. The interfacing also adds a bit of firmness to the panel which is useful in a table runner.

Back of my Block 1

The class met this past weekend – ten days after the first session – to finish the piece. The gals needed to decide how to put their five blocks together, what kind of sashing to add, and borders to finish the piece. All three of the women got the tops completed, one was able to add batting and backing – she finished the piece using a pillow case finish (laying backing and top right sides together and sewing a 1/4″ seam around the outside leaving an opening for turning the piece right side out).

A Christmas Table Runner (Not Yet Pressed)

Another had nearly finished a bed runner – just needed border for the top and bottom ends.

A Bed Runner In Progress

(The third had her top and backing pinned right sides together when we ended the afternoon so I wasn’t able to get a picture.)

In the meantime, I’d started work on a wall hanging:

Only to discover that although I have hundreds of 2″ fabric squares in a wide range of colour, I didn’t have fabric to fill in the light portions of the layout! I’ve had to dig through scrap boxes to come up with more possible fabric bits. My plan is to build a graduated background, then to embroider a large flower of some kind (not another iris, maybe a yellow poppy) to overlay the light side of the layout. However, right now, I’ve got a pile of small light fabric pieces on my cutting table and I’m still walking around them. I hope to return to the piece this weekend.

Because I was stuck I turned to pants making, once more. I had washed, dried, and pressed a piece of beige linen cotton blend fabric and wanted, this time, to make a loose wide-leg pants. I took my previous pants pattern, hauled out a pattern I had for pyjama bottoms, laid one on top of the other aligning the crotch seams, then drafted a new pattern with the higher waist of the pants and the wider legs of the pyjamas.

However, when I put the pants together I made a BiG mistake – I forgot the pattern didn’t need a waistband – because the body of the pants incorporated the waistband – I just needed a waistband facing! But instead I added a waistband and faced it – which of course made the body of the pants too long. They looked dreadful. I was about to throw them out but a friend wanted to try them on. They fit her better but would have still needed adjusting, so I took them back, and the next morning removed the waistband, added back the waistband facing, shortened the legs (which were also too long even with the shortened body).

Wide-legged Linen Pants

All I can say is, they’re wearable. They’re comfortable but they certainly make me look like a dumpy old woman! The front fits OK. The back drapes funny so I’m going to have to revisit my “pattern” because I want to make another pair.

So while I haven’t been blogging, I’ve still been sewing, really.

Finished Jean Jacket

I finished the jean jacket this afternoon (I see from the photo, I need to reposition the second button from the bottom just a smidge to eliminate the ‘bulge’ in the bottom opening).

Finished Jean Jacket

The back

Jean Jacket Back

The back turned out nicely. The adjusted size E closes across the front as it should. Turns out, the linen was difficult to work with – stiff and coarse. The shoulder pads and sleeve headers do what they should – lift the shoulder a bit, and smooth the sleeve cap. Fiddly to do but worth the effort. The lining fits in well and is slippery enough that my arms slip into the sleeves easily. And I like the contrast elements in the sleeve bottom.

This is the fourth jacket from this pattern – it’s a well designed pattern (the inside zipper pockets are a good addition) – the markings all align and the parts fit together precisely.

I’m Back

It’s not that I went anywhere – I’ve just been working away at several things and not finished much to write about. But I’ve not been idle!

I’ve been working on a linen Jean Jacket (Out of print pattern by Sandra Betzina)and slowly making progress. It’s a lined jacket, with lots of top stitching and I’ve added two inner zippered pockets at the front facing/side lining seam so I can actually carry something in a pocket. The jacket pockets are no good for even carrying a Kleenex – they’re too shallow and anything I’d put in there would just fall out.

Partially constructed Jean Jacket

I’ve made three of these jackets over the years – a cotton/linen blend, a wild printed fabric, and one in denim – the problem is they’re TOO small – they don’t fit – I can’t button them up. I needed another one in a larger size. I’d bought the linen to make a dress but after a couple of washings and dryings the fabric was still too stiff to use for a dress or pants so I decided to make a jean jacket.

I’ve got the lining constructed, the sleeves (which have quite a bit of detail) are done. I’ve set up the sleeve facings having added a Hong Kong finish to the open edge. Now I’m working on putting the rest of the lining together. I expect I might be finished the jacket tomorrow or over the weekend.

In the meantime, I decided I needed a new iPhone carrying case – not much larger than the ones I’ve made before but larger enough that I can carry a credit card, my drivers licence, health card, some money in addition to the cough candy and chewing gum I always have on hand (because of my pesky cough – which BTW has subsided substantially recently – not gone but much less of a problem). My first try wasn’t quite wide enough and the top pocket was too deep. So I made a second.

iPhone Case 2.0

What I did was figure out how to add two zippered pockets to one side in addition to the zippered pocket along the length!

I haven’t written any instruction for how to do this version. When I get around to making another one and taking photos as I go along I’ll set up some instructions to share.

It’s still not large enough to fit my keys in but I have a hook on my key ring which I can hang on the strap if I don’t want to carry them in a pants or jacket pocket.

And I’ve almost got a sock finished from the new pair I’m working on – that will probably be completed this evening.

But since it’s been just over two weeks since I reported on anything I though I should update what I am working on.

New Turquoise Socks

This turned out to be a subtle, but interestingly detailed pattern when the socks were finished. The hint of white separating the blue from the turquoise created a clear colour boundary.

The yarn was one of the remaining balls from the yarn I’d bought last year from Hobbii in Denmark. I didn’t plan the layout – I just started with the interior end that presented itself (I almost always work from the inside of a ball to the outside – that way the ball doesn’t roll around). It was just luck that I was able to begin and end with the blue leaving the turquoise element in a nice location on the leg and foot! I did have to match up the yarn for the second sock – but that’s usually how it goes. Because of the way the pattern worked out, I decided to keep knitting the toe in the blue, rather than change to the solid I used for cuff and heels.

I just might put this pair in my sock drawer.

New Clothes

The Escher Quilt finished last week, I started on some summer clothes. I’ve gained weight since I moved into the apartment, particularly this past year, and none of my summer pants fit me! None of them. The waists are waaaay too tight, but also across my belly the zipper has a hard time closing. So rather than trying to remake them, I decided to start from scratch.

Linen Pull-on Pants

A couple of months ago I bought one metre each of three different colour linen fabrics from Blackbird Fabrics (online) – nice weight, and I thought the fabric width would be wide enough that I’d be able to scrape out a pair of pants – well almost – I would normally buy 1 1/4″ metres for a pair of pants why I didn’t call and ask them to sell me the correct amount, I don’t know!. As it worked out, I was just able to fit in the fronts and backs and the front and back pockets but all facings and had to be cut from something else. With the red pair I had to create hem facings because the legs weren’t long enough to turn up; the mauve pair ended up somewhat cropped; the navy pair were OK in length. Because I intend to wear them with loose tops (I haven’t worn “tucked in” in a long time) I can get away with an elastic waist, pull-on pants.

I want to make one more pair but that will have to wait until the fabric stores here in town reopen – Wednesday, this week, I think – to buy some khaki/beige linen blend fabric.

In the meantime, I’ve turned to tops and dresses.

Top Recut From Dress

This top is a dress remake of the dress I made in 2014 for Benjamin’s Bar Mitzvah. 2014 – that’s a while back – the dress was just too small. I put it in the give-away pile and then decided to use the fabric as a “muslin” to recut the dress as a top to see how it would look in a larger size. Not bad. I can certainly wear it with white or red pants and a bit of jewelry and look decent.

I was using this garment as a mock-up for a longer casual summer dress. Working from a pattern I’ve had forever

I retraced the size 14 I now needed, carefully drafted neck “yoke” pieces (the pattern uses a neckline facing, but the neckline is a bit too large so I decided to add an insert (“yoke”) to make it higher, rather than change the neckline on the pattern) and I also lengthened the sleeves to close to elbow-length.

I had bought some viscose/cotton/flax/ print fabric a few weeks back with this dress in mind. Yesterday, I cut it out and assembled it.

Floral Viscose/Cotton/Flax Casual Summer Dress

I’m not going to be glamorous in this dress, but it’s going to be loose and cool and comfortable on a hot summer day (OK we don’t get a lot of those here in NS but we do get an occasional warm one).

I’m just about to make a second dress using some batik rayon I stamped myself in Bali in 2014.

Bali Rayon Batik

I purposely used two tjaps (stamps used to apply hot wax to the fabric) to create my design intending to use the “rectangles” as a border at the hem of whatever I eventually made. We stamped two “border” sections so I’d have enough. I came home with 5 metres of this batik rayon fabric – the dress will take about 1/3 of what I have – I’m going to try to border the sleeves a wee bit, as well, if I can.

That’s today’s project. I have more linen and linen blend, as well as rayon, fabrics in my stash to make several more garments but I really don’t need more than two dresses – we don’t get that many hot days here. So that fabric will stay put for another summer.

iPhone Photography

Crab Apple Blossoms, Just Out

I’ve been taking an online iPhone Photography Course for the past couple of months. I always have my phone/camera with me so I’m making a point of taking some photos every day.

The first lessons had to do with learning about the iPhone camera features – and there are a lot of them. Next, the lessons moved onto to general photography principles – how to establish a focal element, leading lines, balance in the image…. Followed by, editing.

I took the photo above early last week (nearly two weeks ago) on my walk to the neighbourhood high school. The crab apple blooms were just out. I liked the light and shadow on the flowers as well as the texture of the bark. I cropped the original image and strengthened the contrast between sun and shadow but I did little else with the image.

Here’s another shot from the same tree. In this one you can see the dark red colour of the pistil at the centre of the flowers. I took this photo in “portrait” mode which sharpened the foreground and blurred the background. That let me consider some dramatic editing:

Portrait Mode, Stage lighting

Editing with the iPhone provides an amazing array of options, with the Photos app itself as well as any number of photo editing apps. Because I took the photo in “portrait” mode, using the Photos app on the phone, I was able to darken out the background while brightening the foreground to create quite a striking image.

I’ve been having lots of fun exploring with the camera. Not every photo is outstanding, but the iPhone is capable of taking good photos. I’m working at getting better at it. It all takes time, however, what with sewing and knitting, and a bit of house cleaning, grocery shopping. While we’ve been locked down, I’ve had no shortage of interests to occupy me – there’re just aren’t enough hours in the day to get to everything I want to do.