Canto 3 -
Araṇya-kāṇḍa
Chapter 45: Sītā Chastises Lakṣmaṇa
Text 3.45.19

राक्षसा विविधा वाचो विसृजन्ति महावने।
हिंसाविहारा वैदेहि न चिन्तयितुमर्हसि॥

rākṣasā vividhā vāco visṛjanti mahā-vane
hiṁsā-vihārā vaidehi na cintayitum arhasi

rākṣasāḥ = rākṣasas; vividhāḥ = various; vācaḥ = sounds; visṛjanti = utter; mahā-vane = in the great forest; hiṁsā-vihārāḥ = violently sportive; vaidehi = Vaidehī; na = not; cintayitum = worry; arhasi = You should.

Vaidehī, violently sportive rākṣasas utter various sounds in the great forest. You should not worry!

Lakṣmaṇa states here that the rākṣasas uttered various sounds to bewilder Sītā and Lakṣmaṇa.1

1 Rāmāyaṇa-bhūṣaṇa: vāco visṛjanti asman-mohanārtham ity arthaḥ.