Sådan optager du fantastisk lyd

Bedre lydkvalitet = mere nøjagtig transskription

Sonix-brugere om lydoptagelse

Pete Combs, KOMO Radio

Pete Combs

KOMO Radio

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Pete Combs Recording Tips

Intro of capturing great audio

My name is Pete Combs and I'm a reporter for K O M O KOMO radio in Seattle. I've been doing this for about 40 years and my life has basically revolved around gathering audio and putting it on the air.

The gathering audio part is what I want to talk to about because there's a lot you can do to make your audio presentations sound great and to improve the quality of audio for the purpose of transcription. For instance when you're doing phone audio you want to record that on a landline if possible.

Levels and cadence of speech

Speak slowly and make sure that there are no glitches in that landline connection. If there are, do them over again. It doesn't hurt and it could make the transcription a lot more clear. If you're doing it in person, the one thing I tell you, is make sure your levels aren't too high in the digital world.

You can certainly boost levels all day long but when you try to deal with levels that have gone too high and they distort, there's nothing much you can do the audio will just remain terrible. So if you have any doubt about the volume of your recording go low and you can adjust later.

Volume of recording and exact leveling

I usually do my recordings at 4,400 hertz or 44.1, and I use 64 bit audio when I do an MP3. For radio use I usually record MP3s at 44.1 kilohertz and I use a bit depth of 64 kilobytes per second. That's pretty clear. And again the volume is the key here. You don't want to get too loud.

Summary of capturing great audio

Try those as you're making recordings for transcript and if you have any problems remember this: Slow down. The slower you go the easier it is for the computer to figure out what you're saying. I'm Pete Combs. Good luck and happy recording.

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William Smith, Daring creative

William Smith

Daring creative

Lyt på Sonix

Capturing Great Audio

Recording environment advice

How do I capture great audio? The first thing that I try to do is just always record in a quiet space. So obviously you know reducing the noise and you're environment is super important and everyone says that but it's worth mentioning because it's something that you do need to kind of stress on a little bit.

I have a home studio which is just basically a renovated bedroom that I have converted into a place where I record. I took the closet and I kind of put acoustical tiles in there to make it more conducive to recording and I also try when I can to stand up while I'm talking. I just find that get a better sound that way.

Proper microphone techniques

The next thing that I always try to do is observe proper microphone technique. You know you don't want to be too far or too close to your microphone. The closer that you are the more you risk clipping or overdriving the further you are the weaker the vocal will sound. It might sound a little tinny or just distant and that requires you to do more to bring it up and make it sound good in the forefront of the recording.

I spent a lot of time coaching whoever I'm talking to to make sure that they're staying close to the microphone at all times and they're being in a consistent distance away from it.

Microphone suggestion - Shure SMB7

It also doesn't hurt to have good equipment so what I've tried to do is invest in some decent microphones. I use a Shure SMB7 microphone both for myself and for the guest. And I find that they sound really great. I don't have to do a lot to them in terms of processing.

I plug those into a Zoom recorder so I use Zoom H6 and I just find that it does a really great job recording. I've used other audio interfaces in the past and by far this is the best sounding one that I use as my Zoom. So I love to use that.

Editing & cleaning up audio

And then one thing that I like to do is actually edit the podcast you know go in after I've recorded things and take out filler words minimized breath, if I can, remove mistakes, dead air.

You know I'm just kind of clean things up to make things more concise. You know somebody is kind of rambling on and on about something I'll try to shorten it and I find that that does a lot in terms of how people think in terms of the quality of the audio.

Audio clean-up tool suggestions

The more concise that it sounds, the more confident that it sounds by taking out the stammers and stuff you know stutters and stuff like that, it's really helpful. Then I do some audio processing. So I use some plugins. I use one from Izotope called RX Elements and it's a bundled piece of software.

It allows you to take out hums and clicks and just little artifacts that you could find in your audio recording. There's another tool from Izotope that I use called Nectar 2 which has some really cool presets for different types of sounds and so I'll use that once in a while. I'll usually use a compressor to make sure that the audio remains at a consistent level because again it is hard sometimes to get people to stay in the same dynamic range and sometimes you don't want them to.

Sometimes you want them you know depending on what they're talking about. You know if there's excitement you want that to come through but you don't want to overdrive. You know with the sound is for the listener so I use a compressor. And then the final thing that I do is once I bounce down all the vocal tracks and the whole you know podcast basically into an MP3 file, I'll run it through Auphonic which is an online tool.

It's actually a desktop tool as well but most people use it as the online tool, and it's a leveler. And so just make sure that the volume of your podcast is optimized for mobile listening since most people listen to podcasts through mobile.

I found that that does a really good job at keeping you know the volume levels where they need to be. When you plug in earbuds are you putting in your car etc.

So those are the things that I do to get a good sound.

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Et par tips til at optage fantastisk lyd

Optag indendørs hvis overhovedet muligt

I blæsende eller støjende udendørs omgivelser bør du optage det meste af dit lydspor indendørs eller i et studie. Hvis du er nødt til at optage på stedet, kan baggrundsstøj eller vind undgås ved at bruge en "dead cat", "wind muff" eller vindhætte, som er lodne mikrofoncovers designet til at minimere vindstøj. Det er næsten umuligt at redigere vindstøj ud af dit lydspor bagefter.

Opsæt en lydboks

Det bedste sted at optage lyd er i et lille rum med gulvtæppe og vægdekorationer (billeder, gardiner osv.) for at undgå hårde lyde præget af ekko. Skabe fulde af hængende tøj fungerer fremragende som en midlertidig lydboks.

Udstyret betyder noget

Den bedste måde at få klar lyd i høj kvalitet på er ved at bruge en selvstændig mikrofon i stedet for en indbygget mikrofon. De fleste indbyggede mikrofoner er retningsuafhængige, hvilket betyder, at de optager uønsket lyd fra alle retninger.

Envejs-mikrofoner er de bedste. Kvaliteten fra dem er næsten garanteret bedre, og du kan flytte mikrofonen rundt for at finde det bedste sted at fange lyden. Mikrofoner er meget mere følsomme, end mange tror. Selv det at rette visse mikrofoner i forskellige retninger kan drastisk ændre mængden af lyd, du fanger. Normalt vil en lavalier-mikrofon (knaphulsmikrofon) sat på en persons skjorte opfange den mest direkte og klare lyd.

Læn dig ind, kom tæt på

Jo tættere mikrofonen er på taleren, jo bedre. Du får bedre lydkvalitet, mindre baggrundsstøj og bedre lydgengivelse. Sørg desuden for at artikulere dine ord tydeligt, som hvis du talte til et publikum i en stor sal.

Tal på et afbalanceret og ensartet niveau

Selv med en god mikrofon er fantastisk lyd ikke garanteret. Mikrofoner kan være ekstremt følsomme over for små ændringer i lydniveauet. Selvom vi ikke tænker over, at nogen taler meget højt og derefter meget lavt, kan det ofte være for meget for en mikrofon at håndtere. Pludselige høje lyde kan forårsage forvrængning, mens meget svage lyde måske slet ikke bliver opfanget.

Tjek din lyd

Brug hovedtelefoner til straks at overvåge eller tjekke din lydkvalitet for at sikre, at der ikke er baggrundsstøj. Vores opfattelse af lyd gør os ofte ubevidste om baggrundsstøj. Her er et simpelt eksempel: Forestil dig at være i et rum med aircondition tændt. Efter kort tid vil du ikke bemærke det længere. Men lige pludselig slukker den. Nu virker rummet uhyggeligt stille. Vores hjerne og hørelse tilpasser sig ret hurtigt vores miljø, men de bemærker pludselige ændringer.

Desværre opfører mikrofoner sig ikke på samme måde. En mikrofon vil opfange al den ekstra støj under hele optagelsen. Når du lytter til det igen, vil det være meget tydeligt. Derfor er det altid vigtigt at tjekke din lyd (med hovedtelefoner), før du optager timevis af indhold. Du har ikke lyst til at skulle gøre det om!

Konklusion

Lyd i høj kvalitet er afgørende for at få gode transskriptioner. Baggrundsstøj, vind, mumlende stemmer og ekko vil let resultere i en dårlig lydkvalitetsscore. Hos Sonix analyserer vores automatiserede transskriptionsalgoritmer dine optagelser. Derfor er vi stærkt afhængige af dig. Sørg for, at dine optagelser er lavet i det bedst mulige miljø. Antallet af rettelser, du skal foretage, vil blive markant mindre.

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