-
Posts
1,899 -
Joined
-
Last visited
Content Type
Profiles
Forums
Downloads
Everything posted by greenmachine
-
The horizontal axis represents frequency (measured in Hz), while the vertical axis represents amplitude (measured in decibels). The higher the line, the higher the level/amplitude/volume. The frequency range goes from very low frequencies (left) to high frequencies (right). Hz is the abbrevation of Hertz, which is a unit of frequency of one cycle per second. 1000Hz = 1000 (waves) per second. 1000Hz and 1kHz are the same value. Anything below 20Hz or above 20kHz can be ignored as these are roughly the human ear's limits. A logarithmic scale fits better for analyzing low frequencies, while a linear scale is more detailed for higher frequencies. Anything below roughly 100Hz is described as 'bass', whereas frequencies from ~4kHz upwards are called 'treble'. Human voice is usually somewhere in the 500-1000Hz region.Every doubling of the frequency equals one octave. 20-20000Hz are roughly 10 octaves. Instruments are usually tuned to A440 (note 'A', 440 Hz). It's the same if you for example raise all frequencies below 100Hz or lower all frequencies above and adjust the master volume afterwards. This way you can gain real deep bass by lowering all bands equally and adjusting the volume afterwards. If you just raise the 100Hz band, you'll get no real deep bass, but just exactly 100Hz will be raised, nothing below. If you lower all bands, you'll loose some amount of the maximum volume, which should be no issue with reasonably efficient headphones though.
-
I've seen fingerprint scanners appearing in electronics stores and supermarkets, which could be used for similar purposes. Brave new world.
-
Patti Smith - Gone Again (1996) in SP (older recording) with my new eq setting - great
-
What's your equalizer set at?
greenmachine replied to sonic_rage's topic in Technical, Tips, and Tricks
Although my headphones (MDR-CD470) sound rather linear in the mid-range, i feel that they benefit from a little low and high frequency boost. My new favorite setting is (-1 -1 -1 -1 -1 0). See also this thread why i prefer negative values: http://forums.minidisc.org/index.php?showtopic=13741 -
Try something like (-2 -2 -2 -2 -2 -2), (-1 -2 -2 -2 -2 -2), (-1 -1 -1 -1 -1 -1) or (0 -1 -1 -1 -1 -1) instead if you want to raise the bass. I think 250Hz adds a great part of the 'bloat'. It should be lowered together with the other bands.
-
The first picture shows a disabled EQ vs. EQ on with all bands in neutral position. 100, 630 and 4kHz lowered/raised, compared to neutral position. Individual bands 100, 250, 630, 1.6k and 4kHz at minimum/maximum position. All bands down/up compared to neutral position. 10kHz down/up in logarithmic/linear view vs. neutral position. Oddities: All bands behave as expected, except for 10k, which boosts from ~10k onwards and reaches its peak at 15-16k. Raising 10k lowers the overall volume, whereas raising other bands doesn't. If you lower all bands, you'll gain low bass below 100Hz - if you raise all bands, you'll loose the lowest frequencies. There is no proper way to boost low frequencies, like in earlier models with sound 1/2 or megabass. Discuss.
-
I've tested this with my MZ-R700, MZ-R909 and MZ-NH700. R700 and R909 with their sound 1/2 settings boost all frequencies below 100 Hz, whereas the NH700's 100Hz control just boosts exactly 100 Hz, nothing above, nothing below. This is the reason why i consider it quite useless for bass boosting purposes. Sony should re-think this. The sound 1/2 or megabass sounded quite good to me. Left to right: R700, R909, NH700 [attachmentid=1278][attachmentid=1279][attachmentid=1280]
-
Been listening to John Coltrane all day long and am getting dizzy slowly. Waiting for a state of enlightenment.
-
Beyerdynamic DT 880 S in good and full working condition - here's the link to the auction: http://cgi.ebay.de/ws/eBayISAPI.dll?ViewItem&item=7576796480 They're not the most sensitive kind headphones, so i wouldn't recommend them for portable listening exclusicvely. Worldwide shipping from germany. [attachmentid=1274]
-
Current Description of Compression formats
greenmachine replied to Donnageddon's topic in Technical, Tips, and Tricks
Once you've seen the light, you don't want to get back to darkness. -
MiniDisc Recorders vs Voice Recorders
greenmachine replied to saxophernalia's topic in Live Recording
With a good (stereo) microphone and careful placement, MD recorder's sound quality surpasses voice recorders and such by far. Why we still use rotating discs? Flash recorders with excellent recording quality and relative ease of use / reliability in an affordable price range have yet to be produced. -
If a dynamic passage has been compressed to constant loudness, how would you tell the loud passages apart from the quiet for a reconstruction? All you can do is to guess. The result would be mediocre at best.
-
100Hz (the lowest EQ band) is quite useless for adjusting bass anyway, something in the 40-60Hz region would have fit the bill much better in my opinion. 100Hz just bloats the sound without adding real bass.
-
McCoy Tyner - Things Ain't What They Used To Be (1989) The work of a genius - at least the solos.
-
How to build a Stereo Microphone and Battery Box
greenmachine replied to greenmachine's topic in Live Recording
Assuming that the microphones consume less than 1mA and battery capacity of an Alkaline is in the ~300-500mAh region, the battery should last about 300-1000 hours. I put in a new one once the voltage drops below 7V or so. If you don't constantly use it, it should last at least a year or so. Putting in a new battery before each show is a waste. -
It should interrupt the charging process automatically after up to about 3.5 hours. Anything significantly above could damage the battery and/or recorder. You're not charging via USB, are you? Recording obviously requires more power than playback, but you should still get a few hours out of a fully charged battery. Here are two excerpts shamelessly stolen from the user's manual: [attachmentid=1262] [attachmentid=1263]
-
Don't use the mains power for recordings from analog sources. This introduces the hum (although way quieter when recording via line-in). Use battery power instead, whether internal and/or external.
-
I guess you're aware that none of these players/recorders can play back mp3s without time-wasting and quality-sucking transcoding to Atrac[3(+)]. Are you? If your sources are CDs, this is a non-issue though.
-
It might be slightly more detailed and artifact-less in theory, but it's not worth the extra bandwidth for me since i'm having a hard time even to abx Hi-SP from PCM with real world music/samples. Any successful abx comparisons yet or just speculation?
-
It's propably as good as any other Hi-MD if you don't need any realtime recording abilities, fancy displays, ultra slim design or the like. It's nice to be able to use AA batteries natively.
-
Pink Floyd - Wish you were here (copied from an old tape to MD SP) 1. Shine On You Crazy Diamond 2. Welcome To The Machine 3. Have A Cigar 4. Wish You Were Here 5. Shine On You Crazy Diamond (Part Two)
-
They age slower at low temperatures and 40% charge state. If you constantly top them and store them at high temperatures (common notebook battery situation), they'll die way faster.
-
Issue with playing newer disc on old player, possible codec issue?
greenmachine replied to machinerygod's topic in Minidisc
You've got that perfectly right. A MDLP capable deck would be the only option for a digital transfer if the recordings are in ATRAC3. Read more about it here: http://www.minidisc.org/mdlpfaq.html -
You could solve the conspiciousness problem with a headband like this and a high sleeve and/or long hair to cover the cable - you put the whole thing around the back of your head under your hair - no mics or croakies visible - depending on how much hair you put over the mics, they could act as a windscreen at the same time. The restricted movement problem would remain though. I'm using this for a while now and like it much better than having to wear glasses. I can enjoy the show now without feeling conspicious at all. The mics sit just above the ears in an ideal position. [attachmentid=1247]
-
No memory effect - but they 'age' relatively fast and become useless after a few years whether you use them regularly or not. Spare batteries might be hard to find in a few years.