Automatic audio to MIDI conversion should be fairly reliable for single voice instruments, but the more voices (or fingers on a keyboard) the less reliable it will be.

Are you just trying to Dub/Add midi instruments on top of your recorded audio? If I recall I output each track out of vegas as a wave, then placed on individual tracks in acid similar to loops. then create the new midi instrument tracks and play along with your composition. but maybe your trying to do something more technical like how pro tools and acid interact.
Steven

As Steven says, it's simply a matter of putting your audio into tracks in Acid and composing midi tracks to go with them.
A problem with doing this is getting tempos to match up, and Acid has a Beatmapper feature to help detect beats and bars.

It's easy to record audio from midi via hw or sw synth, but the reverse is an incomplete science that can only approximate an instrumental line. For instance, if a sax or violin player bends a note 1/4 tone, how is an audio->midi interpreter supposed to know if it is an E or E-flat? And many brass instruments' attack is briefly a full tone above the pitch. You can see the problems.

Best (and most efficient) is to do a conventional manual transcription and play the lines back into MIDI. Or, if you have the scores / sheet music, there are OCR programs that will read your notation into MIDI files, with fairly decent (if mechanical) accuracy.

I hope you know that MIDI is not sound. That is fundamental. MIDI is just a series of switches, 0<->1, sent through 16 channels with a set of parameters, that can control anything, for instance lighting controllers. The sound that comes from MIDI is a result of those switches being applied to sythesizer tones. The reverse does not exist.

Hi Guys,

All my vegas project songs consist of multiple audio tracks (recorded as audio not MIDI) that Ive created in Vegas Pro 8. I want to add MIDI sounds to those songs in any format, I don't care if it ends up there in wav or MIDI as I don't need to (MIDI)edit what I play. I want to treat my MIDI keyboards as if I had a real Minimoog :)

What I did yesterday in VP8 was output the already recorded tracks to my motherboard audio outputs 1/2 and to my MAckie mixer channels 1/2. I routed the standalone MIDI soft synth (Aurora Analog Factory) to my Edirol soundcard outputs 3/4 and to my Mackie mixer channels 3/4 and routed this back to Vegas via my Edirol soundcard inputs. Yeah, it's complicated and you gotta watch out for feedback! NOT my preffered way of doing this. But at least I got some tracks down.

Rendering all tracks from Vegas to Acid is possible in theory but I want to have control over effects, envelopes etc. There's so many audio tracks that it'd be an impossible job to copy all the effects track by track over to Acid from my Vegas project. The Problem is that I'm halfway in scoring a film and decided that it's time to go MIDI for some extra sounds! It'll be so much easier on a new project once I can start everything with Acid (if I decide to buy it).

But for now one thing I could do is use a separate laptop for MIDI and use it as a player and output the audio to my Mackie mixer -> to my desktop audio card. But that seems a bit complicated as well and I'd have to buy a new soundcard as well for my laptop to output the audio in decent quality.

If only I could route the MIDI soft synth audio while playing directly to Vegas Pro 8? Could I do this with the "Enable input monitor"?

Hope this makes it a bit clearer :)

Thanks for all the suggestions!

Sami

Just import a basic audio reference track into Acid, lay down your midi track, save the new midi track as a wav, and add the new track in Vegas. That's how I've done it using Cakewalk. Or am I missing something?

Just be sure to keep your sampling rate and bit depth the same as your Vegas project. Resampling recorded midi material magnifies quantization noise.