Dreadhead

Are you? DSP can do both quite happily.

I paid the first payment on our new backyard office shed. Cedar exterior, white bead board interior, insulated with heat and AC going to be awesome. Should be done in about 2 weeks.

That doesn't mean that guy isn't a POS

The story behind that gem... http://www.dailytelegraph.com.au/news/world/car-ploughs-through-pack-of-100-cyclists/story-e6frev00-1226014014626

Congrats Al! Nice work Steve you obviously have a firm grasp of the finer points of wood

A 10 mfd capacitor for my air handler to save $70 over getting the repair guy to do it...

Sorry to hear about the problems Shelly and good luck to you and your husband. We had our own trip to the ER over the weekend. We were lucky in that it turned out to be nothing but was worth the trip anyway.

I'd be interested too. Are you going to dither it down to 16bit or just cut it off? Apparently if you just cut it off then the difference will likely be a lot more audible (not that I've ever heard it).

Ok well audio was what I was talking about zero padding and having a standard. There are lots of other zero paddings around beyond endian ones (eg ftt).

fixed.... sorry about that typo (I had put a 2 in my HDCD data stream)

I am trying. Here is what I'm saying (Assuming that I have a 24 bit DAC): Full range for DAC (0dB):11111111111111111111111 16 bit number(from CD): 1010101010100110 (2^16 steps) HDCD decode with PE: 0101010101010011101 (2^20 steps but signal now played at 1/2 16 bit playback, or 6db cut) Zero Padded 16 bit: 10101010101001100000000 (2^24 steps 16 bits of resolution) Zero Padded HDCD with PE:01010101010100111010000 (2^24 steps 20 bits of resolution, volume 1/2 of 16bit) MSB padded 16 bit: 00000001010101010100110 (2^24 steps 24 bits of resolution, volume 1/( 2^8 ) of 16bit playback) I'm not the only one. http://www.hydrogenaudio.org/forums/lofiversion/index.php/t72436.html

I was talking about putting a 24bit signal into a 16 bit DAC. It should ignore the lowest 8 bits. I'm not saying any do I'm just saying that's what should be done. Also of interest if you play 24bit material into a 16bit dac you really should add dither or there may be audible effects. Yes there is. Last time I checked when you feed a 16bit signal to a dac using a digital output and then switch your software to 24 bit the newly padded signal doesn't reduce the volume 2^8 times.

Sorry but that is what I said. Zero padding by definition is adding to the LSB side so it makes no difference to the signal out of the DAC (if it is 16 bit and correctly ignored the extra LSB bits). The peak extension on the other hand adds one bit to the MSB side and requires the range be half the gain to keep the not peak extended data in the the correct ratio to the loudest point in the track. (Which is what I said too)

Oh and the 6db attenuation is not for the padding it is for the peak extension so the DAC has enough headroom for the peak. It seems like HDCD gives 1bit MSB before and 3 LSB after with peak extension and 4 LSB without. The extra zeros after are just like adding decimal places and do nothing at all.

Yes and no. A lot of DACs have noise floors above the -96db that you get from CD. Some don't but the highest I've ever seen was 20 bit or so (like my DAC3) but realistically if I have the volume set so that I can hear the 0dB peaks comfortably (which is like 80dB for me) in my system the noise floor is so far down that I'm not going to hear it over the background (around 30-40db in my house) or my great grandmothers mantle clock. That said 24bit when you're doing editing or DSP is essential. And proud of it. If I wasn't such a nerd I wouldn't get paid nearly as much.

If I remember correctly HDCD pads to 24bit regardless of there being HDCD or not and hence you end up with a larger file. (I'm not to sure about this one, nearly 50/50). The most HDCD compliant way is to rip the disc and then use a WAV output plugin in WMP because then we'll know for sure it has all the HDCD features. I don't know if I care enough though. As far as math goes I'd take the two files into some Matlab equivalent (name is escaping me, or if I do it at work then in Matlab), normalize based on the max value and do a difference and then see how much different there really is between the two in dB. My guess is not much but around some of the peaks with peak extension then probably. Sounds to me that using the peak extension is a bad idea but the dynamic range suppression sounds pretty good for lowering the dither floor but at 16 bits that floor is really far down there.

I look forward to hearing how this comes out. I did the HDCD software decoder and even modified EAC to include it in my ripping process but I don't really bother anymore. I could also provide you guys with the HDCD wav and the non HDCD decoded wav if you are so inclined and you can do a DBT between the two using a HDCD enabled DAC (if it also accepts 24bit input) if you are so inclined. I don't have an HDCD dac myself so no luck here. Any interest? in seeing the size of the differences? I could do some math....

Happy Birthday!

good luck with the sale Ken

ditto but good Chinese takeout in my case

Came home from work early to work on my yard. Moved my recently drained hot tub to a new spot that I prepped with sand and filled the old spot with a couple hundred pounds of stone. Filled it half full and then realized the safety lock straps weren't installed Emptied it and put the straps on. Filled it again. Yard looks awesome.

Happy Birthday!

Yeah I could but that would cost a lot because it requires plans etc. If I keep it below 80sqft and (now) below 8ft I can go right up to the property line and don't need any building permits at all. I talked to a architect about the variance a while back and just plans came in at $2k, hence the 8x8x10ft I'm stuck with now. Extra annoyed because I after finding this out I thought I'd found a loophole because looked up the definition of height according to city code and they're supposed to measure mid-gable. Unfortunately when I spoke to planning they told me "not for a shed, it's measured at the ridge". Oh well I can still make it work it will just look a little weird with a very shallow slanted roof.

today I found out by calling city zoning that the 8ftx10ft shed I had been planning for my yard has to be under 8ft tall to fit within the zoning requirements. This throws some serious wrenches in my plan for a nice backyard office (well actually bike workout room) with a gabled roof. Going to have to be basically flat which should be interesting with lots of snow on it.

Happy Birthday!