KIRSCH, J.
Although Delao challenged the admission of the audio recordings of the second, third, and fourth drug transactions, he did so at sidebar conferences, which the trial court previously had explained would not be recorded. Prior to trial, the judge stated,
All right. If we need to have a recorded bench conference, you’re going to have to let me know. Because of the logistics here and the proximity of the jury, it’s very difficult to have a bench conference and get it recorded due to the equipment that we have. So we may need to take a recess, get the jury out, or make other arrangements. So if you want something like that on the record, let me know. Fair enough?
Tr. at 9. Both parties confirmed their understanding and agreement.
Nevertheless, as the State offered the second, third, and fourth audio recordings into evidence, counsel for Delao did not pose an objection, but rather requested permission to approach the trial bench, which was granted; the objection or challenge then was made and argued at the bench during conversations that were not recorded. Tr. at 76, 87, and 99. Following the off-the-record discussion, the trial court stated that “It would appear that the objection was on the grounds of relevancy.” Id. at 76; see also id. at 87 (“There has been an objection to Exhibit 11 on the grounds of relevance.”), 99 (“The defendant’s objection was on the grounds of relevancy[.]”). Although the record does not include Delao’s actual objection or argument in support thereof, Delao now asks us to accept that “it was defense counsel’s contention that key parts of the recordings, and the translation of same for the jury, were of sufficiently poor quality so as to be confusing and misleading to the jury.” Appellant’s Br. at 9. We must decline Delao’s offer to speculate now about what the specific basis of his objections may have been.
“On appeal, the appellant carries the burden of presenting a record for sustaining his argument.” House v. State, 535 N.E.2d 103, 109 (Ind. 1989) (objection made during unrecorded sidebar conference was not preserved and defendant should have corrected any deficiency in record according to appellate rule allowing for reconstruction of alleged missing portions of transcript). In this case, Delao has failed to present a sufficient record for our review and, accordingly, has waived any error in the admission of the audio recordings of the cocaine transactions occurring on September 11, September 25, and October 1, 2007.
RILEY, J., and BAILEY, J., concur.