MIDI Sync and Tempo Change/Master/Slave etc?

Hello everyone. I am using an external Sequencer as a Master and Sonar 8.5 PE as the slave. I have a tempo change on the master in the middle of the song (Mid 8). My tempo change starts at measure 70 where my tempo drops from 120 bpm down to 100 bpm and then when the song gets to measure 78 it changes back up to 120bpm. The whole song is 120 bpm except for the part from meas 70 to 77 which is 100 bpm. When I am recording on Sonar the external sequencer does slow down at measure 70 and speeds up again at meas 78 but Sonar is not recording that tempo change.
Oh yeah I am not recording midi here into Sonar but rather actuall audio sounds from keyboards. The sequencer is driving the keyboards and Sonar.  So I am recording audio while in MIDI sync.
I can change the Midi tempo in Sonar itself so that it is 100 bpm at measure 70 and 120 bpm at meas 78 but when it is the slave it just ignores those tempo changes. I have recorded a lot of audio so far on this song and thought that everything was ok until I took a listen...and then I noticed that it did not obey the tempo changes coming from the external sequencer.
Any advice would be a great help and if I need to do all the recordings over again then so be it.
Thanks very much.
Ken

Beagle


are you saying that you have your keyboard set up with a sequence so that at measure 70 the tempo of the sequence changes from 120 to 100?  if not, how are you "telling" sonar to change the tempo?

Hello Beagle. I am using an old Roland MC 50 ( master ) as the external sequencer and that is driving a Roland XP 60 keyboard (  slave 1) and driving Sonar (slave 2).  Sonar is synced to the MC 50 and the tempo changes are on the MC 50. So the MC 50 is suppossed to be telling Sonar to change the tempo at measure 70 and then again at measure 78.
 

If all you are recording into sonar is audio from an outboard sequencer/ sound source then I don't totally see why it would matter if sonar is set to any given tempo. Unless you are planing on adding more midi tracks later to sonar and trying to quantize. I work with a lot of pure audio stuff and never set a tempo. If the outboard sequencer slows down sonar will record that perfectly fine. In the end you are better off using Sonar as your master to drive the sound source. Just transfer the MIDI file into it, Can't see the point of using an outboard sequencer anymore.

johnnyV


If all you are recording into sonar is audio from an outboard sequencer/ sound source then I don't totally see why it would matter if sonar is set to any given tempo. Unless you are planing on adding more midi tracks later to sonar and trying to quantize. I work with a lot of pure audio stuff and never set a tempo. If the outboard sequencer slows down sonar will record that perfectly fine. In the end you are better off using Sonar as your master to drive the sound source. Just transfer the MIDI file into it, Can't see the point of using an outboard sequencer anymore.

 
Yeah I understand what you are saying above johnny and I am quite a bit confused about all of this because when I play back the actual AUDIO that has been recorded in sonar it comes to the tempo change section ( meas 70 ) and the music has been chipmonked/sped up somehow and then it goes back to the correct speed again at meas 78.  So Sonar is ignoring the tempo change/slowed down music. I am only using Midi sync to record because I am recording one track at a time of audio into Sonar and need those tracks of audio to line up correctly in sonar.
So to sum it up I am pushing start on the MC 50 and Sonar is following along in sequence locked up by midi sync to the MC 50 and the AUDIO is being recorded into Sonar from the XP 60 keyboard.
Thanks
Ken

Cactus Music


OK what's happening is if you have pre recorded audio that was recorded at a flat rate of 120 , then you add a tempo change latter in the middle, it will morph the audio. All tempos need to be mapped before any audio is added to the project. We normally build a MIDI track in Sonar for say the drums, then play along with that once it's the way you want it. Any changes to the tempo after the fact are not possible without issues. Audio snap might fix it but not worth the bother ( IMHO )

 
Many thanks to you Cactus. I will start my song over.