Because I've prepared properly, the first take is often the one I end up editing and sending to my client. The second is simply there as a safety net, in case I need to replace any mistakes while editing. It's much better to capture such drop‑ins during the same session as the main performance, as you can be sure that the mic will be in the same place and your voice will have a similar character in both takes.
Before you do anything though, ask yourself why you want to become a voice actor. If you know upfront what your goals, expectations, and motivations are, you will be more successful. Setting small achievable goals and placing deadlines on them will make sure you stay on track, even if you only want to do voice over as a hobby instead of a full-time career.
It's a good idea to record with one ear free from your headphones, as this helps you to deliver a more natural performance.When recording solo, I find the role of director the hardest to play. How can you lose yourself in the moment if you're on the lookout for mistakes? If you stop each time you mispronounce a word or use the wrong intonation, your spoken‑word recording will sound choppy and unnatural. It's for this reason that I like to record each job twice. The first time, I push the director out of the room and focus on the message. If possible, I even let the soundtrack of the video I'm narrating play quietly in my headphones, and I don't stop for mistakes any more than I would if I were telling a story to a friend. During the second take, I let the director back into the room, to make sure I pronounce everything correctly and emphasise the correct information — though I still try to keep the performance honest and natural.
Before you get down to the nitty-gritty, though, I recommend doing a test recording to ensure your equipment works properly and your audio levels are strong. You don’t need to record the entire script, but a few paragraphs will give you enough to ensure that the audio is clear, at an appropriate level, and doesn’t include any stray or ambient noises.
If a client likes your demo, they may invite you to audition. In the 21st century, you can download the audition script, record the audition at home, and then send the results to your client over the Internet. Prepare yourself for a life of constant auditions: Even successful voice pros may do many more auditions than actual jobs. But if enough jobs come your way, it's worth it.
Even if you're mixing yourself, it's better to add EQ and compression only when you can hear how it will sit with the soundtrack or special effects. Ultimately, it comes down to knowing what your voice will be used for and making a judgement. For instance, if I'm recording a tagline for a TV or radio advert, I'll generally run a mic into a nice preamp (where I might add slight tube warmth, and subtle EQ or compression, just to give the recording a bit of 'body'), and I may do a little de‑essing using a plug‑in when performing any edits. However, for e‑learning jobs, corporate videos and so on, I'll tend not to add any creative processing while recording or editing, and will only use the de‑esser ever so slightly.