Hi KatieA978,
I am experiencing an issue that is almost identical to yours. I have been working with our strata manager and a solicitor to get my issue resolved. I am currently taking the owners to the CTTT for a breach of by-law 14 under schedule 1 of the strata management act. I have also recently had a meeting with the exec committee and they have issued, via our strata manager, a notice to comply with by-law 1 (noise) to the tenants of the lot. I am pretty sure you can also ask both the owner and tenants to comply with s117 (a) of the strata management act (Jimmy please correct me here if I stray). Only the Exec Committee or the CTTT can issue a comply with by-law notice, however both of you (EC and yourself) can seek orders from the CTTT.
I agree whole heartedly with Jimmy. You do not need to tolerate any of this. Gather evidence (noise log, letters or stat decs from neighbors, friends, recordings of the noise). See if you can get the EC onside and really stick it to these selfish people at the CTTT
There endeth my rant
Good luck