Yamaha hs5 static noise reddit. The noise can be heard on front aux port and rear one too. Both are a balanced line . Noise is present even when they are not connected to a device. I bought these new monitors like a week ago and I'm having a hum noise right after switching them on. Hi all. Yamahas do not sound great but if you can get your mix sounding good on them, they will sound good on almost anything. You should see the meters moving and that box should be set to stereo. Not sure if that's what's happening in your cases, but hiss with monitors is a common problem from what I hear. #1. But when I turn the volume level knob from speaker to max the white noise become louder but it doesn't get Test them out somewhere else first if you can. Ime, the ribbon tweeter is superior tech to other drivers, so the choice is clear. NotSpongebobForWork. Edit: You can also use an interface for that functionality if you think you'll get a mic that needs it one day (it just might not sound as good as a dedicated DAC/AMP unless you get something a little better). They sound very clear. But I have to really unplug it from the mains, if it is Now I'm home, and whenever I power the monitors on, there's a high pitched hum/buzzing noise. If you have a music store where you live with both these in stock, ask to hear a demo so you can decide. Supposedly in my case this has to do with the power source and you can supposedly buy a power conditioner to solve it, but I've never tried. If so you can have it reconed. 5 mm on my TV to dual TRS cable going into the speakers. The upper speaker has a solid hiss and the lower has what I would guess is a 60hz hum from the outlet. Power output. Powered Studio Monitor: HS8/ HS8I/ HS7/ HS7I/ HS5/ HS5I. I was in a studio monitor testing room before making my purchase. Experiment with the position to back wall. I don't like any of those, stay away especially from the hs5 if you can budget up. Not always happening, but anytime data is received it happens. Other monitors used with the iMac did not have the problem. Plugging the monitors into the same power strip with the iMac does not fix it. 5" woofer. 305p has bass countour switches for different wall configurations. r/buildastudio. In Europe we have 220V, so I would have to use an inverter. It cost more, but then I sell my current DAC and get Wireless connectivity. I felt that the jbl 305 were definitely better than the HS5 and other speaker in the same price range. HS5I; Tentang Pendaftaran Yamaha Music ID Authorized Service Center Informasi The point of monitors is not to sound good and to have good bass, it's to give you a good idea of how loud or quiet each instrument in your mix is. To fix these, either connect the card to a Powered USB hub (and then to the PC) -this however might not work or only dim the noise- or change PSU for a decent one. Have a weird issue with my hs5 monitors. ) and i have to say that the Krks sound very muffly compared to their competitors. If you’re producing on windows, check out REW and equalizer APO. If you prefer the sound of the bassier speakers, go with those, position your speakers and listening position as well as you can, and work on accoustic treatment. The Rokit 5 G4 is supposedly quite good, even better than the HS5, but I haven't had any personal experience. The Yamahas are on the desktop. Does anyone know to reset them or have other ideas? With ANC or others feature like it, several devices i tested do this kind of light noise Attached is a list of possible causes that you can rule out/fix yourself: Windows "Sound" settings should be 2-channel, 24-bit, 48Khz selected. 2 month old earbuds. 1,510. I would recommend a companion Temblor subwoofer if you can afford it. We focus on education, discussion, and sharing of entry and mid level separate & multi component audio systems. Studio Monitors aren't boring, this is a myth propelled by audiofools. Same thing with or without audio cables plugged in (I have both TS-TS and TRS-XLR cables, Hey! My JBL Tune Flex earbuds are making this quiet brown/static noise. ), you can connect the Bluetooth speaker via headphone jack and have all 3 playing simultaneously however it will not be a sub and from a sound quality perspective, would avoid adding this to your setup. HS7. • Click Recording devices. If these are the first monitors you buy, you may rapidly change your opinions and want something different later, especially if you move I have two Yamaha HS5 with no Crackling/Buzzing issues when they are just plugged into the wall. So, here’s my issue. Hi everyone, Reading the posts and searching around here I notice it's a frequent issue. Buy hs7. HS5 for mixing, KRK if you want the music to sound good regardless of if you’re mixing. I've been having the most difficult time with very audible static/noise from my Yamaha HS5s. Hey, so I am thinking about buying one of the two speakers listed above. If it's not that, it's probably the voice coil and the driver will need replacement. I don't think you need a separate sub per se. 2. You might want to get something like the MOTU M2 since it's a little higher quality. Hello I’m new in this sub, I have a turntable setup that consists of an audiotechnica at-lp60 and the Yamaha HS5 studio monitors, but the problem is that I have trouble finding a good and practical way of connecting the speakers to the turntable since the only inputs on the speakers are XLR or 6. Dell 49" Monitor *usb hub* with my focusrite scarlett 2i2 2nd Gen is plugged into this as well as my Full Disclosure: I got LSR305 now and looking at NX-N500,which is basically HS5 with tons of connectivity: DLNA, Airplay, Bluetooth, USB DAC, Optical, Line in. This little speaker can generate great sound through the Bluetooth connection. This topic is discussed extensively across different sites. In that line up the hs7 are the way to go, considering noise, build quality and overall sound, even if they do have a harsh/hyped top end. You just need a 3. Hi. Even for HS5, Yamaha claims 54Hz - 30kHz frequency response. The Edifier T5 subwoofer only has RCA in and RCA out. Value For Money. I really like the low end of the 305s because I can get away without having to use my subwoofers (Rokit 10s) until really late in the mixing process, just to make sure the subs aren’t too overpowering. • Make sure the headset microphone is selected as the Default Communication Device. is it that bad ? i dont want to mix my vocal to be r/BudgetAudiophile. I have a Schiit dac for the desktop speakers (this may seem over the top but I also have headphones). When I take the jack out of the back of my pc and touch it to other pieces of metal inside of my computer like the hard drive or tubing on the graphics card, it still makes the noise. Jun 7, 2016 · Calibrated sonic performance. The HS5 also provide better separation and fidelity, making for a cleaner soundstage, that might be less powerful on the low-end, but much more clean and accurate on the mids and highs I could listen to JBL and Yamaha in a room in a shop. such as krk, yamaha, adam or mackie. This is why off-axis measurements are so crucial. However, I’ve started to experience static after setting the speakers, which occurs even when a youtube video is paused. If you can please check out the video in the link, you Normally the HS5 monitors come with two XLR to 1/4" leads. I was thinking of getting a sub-woofer to get more bass, but that's way Monitors are responsible for 90% of the sound. Yamaha also makes a larger monitor, the HS-8, which, to my ears, sound awesome. If it's the amp or receiver, you're going to have to either repair or replace it. We would like to show you a description here but the site won’t allow us. Also loud pops as well from the woofer. I’ve tried troubleshooting by buying a new cable (one which is balanced), unplugging all Yamaha HS7 Static/Hiss. When connected in my laptop (Inspiron 1 year old) they produce a clipping or small distortion sound in the low frequencies and generally the bass sound much weaker than i originally thought. It's the BENQ monitor that is the source of the noise. 0 speakers for my 4x4 meters living room to connect them with TV (3,5 or toslink). 4. The noise is exactly the same. When I try to use the Aux input from either my PC or phone I get bad audio quality and heavy background static (white noise). Your speakers are fine probably. Edit: Yamaha HS series link. Usually a cheap PSU will give these problems, transferring noise through the USB port, getting to your speakers. I own JBL 305s and Yamaha HS5s and I use them both for music production. HS5. Check the Windows Sound settings: • Right-click on the volume icon from the system tray, in the lower right corner. There are also random rare moments where the microphone outputs a Recently I'm noticing that, from the tweeters of my Yamaha HS 8 monitor speakers some sort of white noise is playing continuously. Unfortunately, it was my computer that was causing the issue, so there wasn't much I can do. When i tried plugging it into my phone or laptop the hissing stopped and worked as it perfectly. Sound Quality. The A2+ and YU4 aren't nearly as good as the HS5 or KRK Rokit 5 G4. This is your friendly reminder to read the submission rules, they're found in the sidebar. If you find your post breaking any of the I’ve only heard overwhelmingly positive things about them, esp in less than ideal home studio situations. Had them all. i compared the two in the store, and preferred the sound of the Yamaha HS5 vs JBL 305p mk2. Things start to hum when I use Line Inputs to the Yamaha from the focusrite. I think my 305p sound better than the HS5 my friend has, but I haven't heard them in the same room. There's gotta be something lacking in a $300 pair compared to an $850 pair. The detail from them really is remarkable. The HS5 is good, but the JBL 305P Mk2, Kali Audio LP-6 and Adam Audio T5V are better. So I'm interested in knowing which ones would be better to use in this case. Every minute or so all the sound coming from the speakers are enveloped in a harsh kind of bit-crush effect for about 4 or 5 seconds, then it fades away back to normal. I just read online that they have a nasty +3db peak around 700hz-1200hz. HS5's sound like ass, but if you can make a mix sound good on them, they will sound good on like 90% of the systems the song is played on; laptop speakers, cellphones, consumer headphones, car What would be the better investment: Yamaha HS8 or HS7 on their own, or getting the HS5 with the addition of the Yamaha Sub later on? I produce and mix hip hop for the most part. I recently purchased a pair of Yamaha HS5s for my gaming system. The usual suspects: Yamaha HS5, Adam T5V, KRK Rokit 5 (latest gen), JBL 305, and many's favourite: the Kali Audio LP6. Thanks for the valuable feedback since I can’t a/b them myself, the JBLs look really tempting. STUDIO Monitors are beast mode for high quality true sound, however there's a serious problem with them and in this review we investigate just how much self- tl;dr. Jan 17, 2017. The HS5 studio monitors have XLR or TRS inputs only. I turn the audio to minimum in audio interface, pc and back of the speaker itself but it doesn't get away. Your monitors should be connected on the back to outputs 1+2. I've recently published a detailed review of the renowned Yamaha HS5 studio monitors on my blog, and it's a game-changer for your music production setup! In this comprehensive review, I've delved deep into the world of the Yamaha HS5 monitors, exploring their exceptional sound quality, precision imaging, and unmatched versatility. The issue was still there when I unplugged from the audio source. On your computer software, set the output to the ASUS sound card. I'm pretty sure my building has radio antennas on the roof so I tried wrapping my speakers with aluminum foil and the Jan 17, 2017 · 0. 9. Depending on how you connect your monitors (via interface etc. Feb 19, 2024 · 74 – 20,000 Hz (-3 dB) Inputs. XLR and 1/4" TRS inputs accept balanced or unbalanced signals. B&W's and Elacs on the TV using some Yamaha theater 7. 5 are just glorified PC speakers that are very far from accurate and too cheap for their own good. Remember a little EQ can go a long way. I have a new pair of Yamaha HS5 monitors that had the buzz problem with my iMac. This happens whether or not they are connected to any inputs. I also acquired an Audioengine D1 as my Dac that's plugged into a USB 3. But I just cannot seem to figure out why these Yamahas have a constant feedback buzz. The DAC, sub, and monitors are plugged into the Furman M-8Dx power conditioner and the power conditioner is going into its own socket separate from my PC and everything else. Most people prefer the sound of the JBL LSR305. Sep 12, 2023 · This is a small but powerful studio monitor that gives you a clear and accurate sound. If you have those then just buy two RCA to 1/4" adapters. As the other commenter said, it would be better for you to invest in an audio interface. • audio·phile: a person with love for, affinity towards or obsession with high-quality playback of sound. With the Sonos I feel the sound is projected to me, while with the HS5 the sound is around me. 0 port and 2 Yamaha HS7Ws. I went through all of the different troubleshooting steps to try and isolate it and figure out what the problem was. (This seems important) 7. A cursory search revealed that Yamaha makes HS5, HS7 and HS8. If I unplug it, the noise completely goes away. If it's the speaker it's likely a blown speaker driver. Yamaha HS5 OR JBL LSR305 vs Diamond 220 OR something else w/ mini-amp for 60% movies/40% music stereo Ive been struggling for the past week, searching for a set of 2. I bought a new pair of Yamaha HS5 with a Behringer UMC202HD audio interface. If the source was an iphone, no problem, only the iMac caused it. There were tons of other monitors aswell (also Genelecs etc. I should’ve been more specific with my setup. , (nor guitar cable , got that bit right) You are probably better off trying to fix this at the source by finding out where the noise is coming from. So I mix the bass like a whisper in my mixes. My 10" JBL 310S barely gets into deep 30s. The reason why I'm asking for advice is because I don' t have enough space to put them far away from the wall. Open your focusrite control application. If your speakers are really 3”, no wonder they have no bass. . Your speakers are fine, those are amazing speakers too btw. The woofer has a peak power output of 45 W, while the tweeter is rated at 25 W, for a total of 70 W; the speakers have an average power consumption of 45 W. I have the Yamaha HS5s, and they make an extremely annoying static sound when they are plugged in. You hear things in the Eris monitors that you can’t hear in the HS5’s. Download Dolby Atmos app from the Microsoft Store. Because it's only a 5-inch monitor it does not handle subs well, but for most uses the HS5 is the right speaker for the job. I would go as far as saying that they sound as if someone put a lowpass filter on them. However the noise happens even if I don’t have any input and there is no computer in this setup. 35 mm jack. vertical axis. I've been mixing on these for the better half of 12 years now. 1" high-efficiency dome tweeter. Also, Erises 3. Whether you Turn the Yamaha monitors on, and turn the level knob all the way down. The previous house I lived at, I had an annoying buzz coming from the right monitor, an intermittent sound that would happen randomly, and also sometimes when I just moved my mouse wheel up and down. Effects in movies can get below 20 Hz. "TRS Audio Connector (Tip-Ring-Sleeve) It's constructed of three conductors: tip, ring, and sleeve, which is where its name comes from - "TRS". If I physically pick up the speaker and lift it about 6 inches higher, the sound stops. The bass hump was corrected back to neutral which made The HS5s being monitors are the better sounding pair to my ears. I currently have them plugged into my SSL It's either a problem with the power amp, the speaker cone, or the sound of air whooshing back and forth through the port at the back. My question is, if I get an inverter, is there a high risk of noise because of the inverter? HS are good for production but Kalis win for mixing imo. Super excited for these new yamaha hs5's and Eris Sub, and I know this is posted a lot. My first step of troubleshooting was disconnecting the 1/4” audio cord running from my audio interface If you have your room treated and tuned properly, it’s necessary. dkinmn • 2 yr. I think noise cancelling isn't working properly. I think the "forward" sound is a result of the off-axis bloom in the ~2-5KHz region with the ~3-4KHz off-axis peak (typical in most 2-way speakers). Today i borrowed a focusrite scarlett 22 sound interface and JBL TV Boost speaker - Bad sound / static via Aux input. Also there is noise when i plug it in some ASUS sound card and the noise is same as in the motherboard ports. I'm having some hum/coil whine issues with my Yamaha HS5 monitors. connect USB dongle directly to PC/laptop (no USB switch/hub in between) Just got my new monitors in but there’s a bit of a problem. 5 mm jack to two I currently only own the b&w 606s, elacs and Yamaha HS5. My Blue Yeti Nano began producing a "static" sound that is very noticeable through mic monitoring and can only be noticed in recordings via boosting gain and the clip volume by a lot. 5mm jack > RCA in on the Nobosound little bear mc2 mini passive preamp (for volume control hello everyone! a few days ago i bought studio monitors yamaha hs5, when i plugged them into my pc with an xlr cable into a aux port it started making hissing sounds as shown in the video. I had the same issue with my monitors until I get a Focusrite I/O. HS8I. They both buzz (one louder than the other) when just connected to power, without any input plugged in at all. High Trim at -2 dB. If you're speccing new cable , you're after heavily shielded mic cable, not speaker cable. Yeah I notice mine when a text is coming in or a phone call. Something about electrical activity in the GPU creating ground loops that were making static noise through my Yamaha monitors. 2M subscribers in the audiophile community. But hs5 do the job. HS7I. Hi, i bought the Yamaha HS5 last year (new) for composing and mixing my tracks (electronic music). Turn the computer's volume all the way up. I moved into a high rise and I immediately noticed that my HS8 monitors were picking up this "dial up" noise ontop of the usual AC hum. bass-reflex cabinet with rear port. I'd prefer to make a one time purchase and not have to upgrade. I work in theatre and film and do a fair bit of sound but I cannot for the life of me figure out what is happening. I would personally recommend the Yamahs. Archived post. Jbl lsr305 are also great. Try a simple filter reducing that range by several dB and I think you'll see what I mean. Setup: 2019 Macbook Pro that has a USB C thats plugged into my monitor. Scan this QR code to download the app now. Also, if you mix for movies you'll need much bigger sub anyway. Because the HS5 lacks the ability to reproduce the low end the tendency is to turn the bass up in But if I had to pick one, the E5’s provide cleaner, more transparent sound. XLR3, 6. long story short, hs5 disperse sound differently along the horizontal axis vs. The first thing I did was remove the XLR cables, unplug it and take it across the house to a different outlet, and just plug it in and flip the on switch. Discussion. I know the hs7 and hs8 are really better !! but i produce music in my small appartment and was on a budget. New comments cannot be posted and votes cannot be cast. you should have the latest iCUE version installed. Pop off the grill and see if the cone is separated from the surround. You can tear the two sides of the cable apart to reach your speakers. Posted by u/jallu94 - 2 votes and 10 comments I have just bought Yamaha HS5 monitors and when they are plugged into my PC there is some constant loud noise like some radio interference. Not designed for it. Both monitors are lacking in bass though. There are also random rare moments where the microphone Rokits have extra features and the adams have more unique tech in the ribbon drivers; the yamahas are just speakers. If I turn on the HS5s with the computer off, or if they solo USB is unplugged from the computer, the whine cant be heard. The static gets louder when I turn the volume knob Jan 31, 2023 · Originally Posted by itsfarid ️. Or check it out in the app stores Home; Popular Firstly there is no difference between xlr and trs if they are wired correctly. In the end you will get used to the sound profile of your setup and you can work with it flawlessly, because the HS8s are very good. I just don't get how for 4" or 5" speakers, the price can range from $150-1,000. I also notice that if the volume goes below a certain threshold it cuts out completely and if the "silence" goes on I am not an expert in electronic/electricity but in TRS cable, there is a dedicated wire for ground, so basically it suppress ground loop noise like your. I already have a 3. VO Tech Guru on youtube uses this one. Room Control at 0 dB. room control switch attenuates frequency response below 500Hz: flat, -2dB or -4 dB. 3 mm TRS jack. i chose these over the KRK rockit 5s, as i figured KRK weren't worth buying unless i could afford their high-end gear. •. power conditioner. hi guys, just looking for a little direction here. that sucks. I recently got some Yamaha HS5 speakers for video and audio editing but they’ve been having some serious feedback issues. r/BudgetAudiophile. I use HS5 monitors without a sub. In all listening environments the HS5 responded very well to Sonarworks calibration – the mid heavy sound transformed to a much neutral tonality. My current setup looks like this: Yamaha HS7's -> (RCA) KRK subwoofer 10s -> (RCA) Audioengine D1 DAC -> (optical cord) computer. The monitors are great but a weird high pitched static noise ruins the fun. When playing audio this whine is not an issue, but when I am in FL studio looking for sounds or just paused this can be relatively annoying. This would work well (just get whatever size works for you). These are connected to my D1 via an XLR to RCA cable by VisioSound: Just try to keep your phone a little further away from your speakers. Unbalanced connection creates more noise. They also offer a subwoofer in the same series, which I think would be the best and easiest way to compliment your existing setup. high trim switch adjusts frequencies above 2kHz: -2dB, flat or +2dB. Hey, not sure what exactly the problem is here, but I have a pair of Yamaha HS5's that made static noise when my computer's graphics card was active. so far they sound great, but i would like a little more low end. 5mm to RCA cable, which will have connections for left and right. The noise sounds like morse code beeps and it even occurs when no cables (except power supply) are connected. 2 amp. 5. Hi, u/AutistWeaponized!This is a reminder about Rule #1 (If you have already added great details, awesome, ignore this comment): DETAILS MATTER: Use detail in your post. It seems to just be a completely unavoidable built-in noise. harmolodics. muzzleatnight 2 yr. I can hardly hear it until I put my headphones on. the speaker is optimized for horizontal dispersion, putting the speaker on its side will flip these differing dispersion patterns resulting in worse sound. • Highlight the mic then click the Properties button. on friday i purchased a set of the new HS5 monitors (re-vamped versions that came out recently). Yamaha HS5 Speakers still producing static despite my best efforts. I just upgraded my desktop speakers from a set of Edifier S2000mkII's to the Yamahas. My understanding is with the subwoofer, the signal is supposed to go through the subwoofer to the monitors. When I move my mouse, I can hear a buzz from the monitors, and when I play games I can hear a constant buzz. I'm using TRS inputs, but I don't think that makes a difference as the noise occurs no matter what. If you like having a really good reference on the top end, Adams are the way to go. In the control app you wanna select, in the top left box under output, "DAW playback 1+2". They both lack solid low end due to their size. Monitor noise caused by interference? I got a new pair of Yamaha HS7 and noticed interference noise coming from one of the speakers. If I get the low-end sounding good on either set, my mix ends up bass-heavy. For the HS5, you can get a ZenPro Audio MOD but it bumps up the price for each speaker to $350 from the factory $200. So I recently bought a pre-owned JBL TV Boost speaker. So, there's a "translation" learning-curve on both monitors. Also could be grounding issue. Build Quality. I have no room treatment at the moment and my room is fairly medium sized. Buzzing has now gone :D (before it was hard plugged directly into my iMacs 3. This is because the acoustics of the space it's in is important. it's a bad idea that compromises the speakers design. A subwoofer is recommended for both if you want to feel any kick. ago. Can’t seem to find anything about this online? Equipment used: Acer Nitro 5, Steinberg UR12, Yamaha HS5 Hello! I recently just purchased and set up a new pair of Yamaha hs5 studio monitors for my studio setup. So today I was listening to some music at a pretty low volume and I noticed that there is a low static kind of hiss noise in the background when audio is playing. Right now I just have a 3. I built myself a PC with a Z170 Pro motherboard with no sound card. When I switch the positions of the two speakers, the noise comes always out of the speaker to the right. Honestly, it’s really what you’re used to Low static hiss noise in my JBL Quantum 350 Wireless headset. I've seen a lot of hate for the previous generations of the Rokit 5, but the new gen seems to have improved quite an amount from reviews, draws comparisons to the HS5 and even does a better job with the lows, while with the HS5, I just keep hearing if you can get a mix to sound good on it, it'll sound good anywhere. This may help solve your problem. 45 W (per speaker) The Yamaha HS5 feature two separate amplifiers for the woofer and the tweeter. I got rid of it by routing the cables through a Behringer Hum Destroyer, and that was all well and good. 5mm. I'm thinking of going from my MacBook 3. Start some music playing, and then adjust the level knobs on the back of the Yamaha speakers to get the highest volume you would normally ever want to listen to. I made a post about the problem and solution here My Blue Yeti Nano began producing a "static" sound that is very noticeable through mic monitoring and can only be noticed in recordings via boosting gain and the clip volume by a lot. All the talk and discussion about the beloved sound boxes that make your wobs sound fat in the studio. It can go for a long time clean but then white noise will start eventually it stops and continues again. It is a ground issue. New here. Members Online Pairing Yamaha HS5 with sub with only aux input Do you mean the Harmon Kardon onyx studio 7 Bluetooth speaker? If so, why do you want to use it as a sub? That doesn’t make sense. Jun 29, 2015 · I recently purchased two active studio monitors (Yamaha HS8). HS8. Moving the headphones' (Philips SHP9600) aux cable can worsen or improve the static temporarily. This subreddit is for the budget minded audiophile that wants to grow out of soundbars, boomboxes, mini systems, portable bluetooth, lifestyle speakers, and PC peripheral branded audio solutions. With my Yamaha HS5 Studio Monitors I am experiencing a white noise/static sound that comes in and out every once in a while only in the right speaker. The KRK, you may have to tweak a little or get your ears used to how the low end sounds. I'm using a Behringer U-Phoria interface with USB (I am using the power brick provided with the interface) and using balanced TRS cables. Hey, I'm in Europe and I found a great deal on Yamaha HS5 monitors, but they are American, meaning they are 110V. 1. I only have like a inch of space. I used to have a "Y" cable that had 6. Toggling the Reference 3 plug-in on and off showed how much almost all instruments changed due to the 1KHz peak. I suppose it could also be something physically loose and rattling inside the enclosure. Reduce 1kHz & boost 2kHz and it’s pretty good. One of the monitors has occasional crackling every minute or so in addition to the hum. There is a buzzing / interference noise from the speakers (which worsens if I do something on the laptop, move the cursor around, etc) which I have identified and isolated the cause. If you want to get one, do it, but it's not necessary. I don't think it's a ground loop or coming from the audio interface because it does it whether it's plugged into the same outlet as the PC or a different outlet, it does it whether there is an audio signal cable plugged in or there isn't. I tried just plugging the 2 monitors into Yamaha HS8 Static Noise. qq cp gk mb zx ni vz od mh ef