Hi This means all tracks in the project will be synchrrnize. For example, if I record a podcast, add intro, out tro but when listen for the last time, I see that is a silence need to remove in the voice trac. Turning on sync lock track, I can select that part and delete without re align the music. Hope that help you because I have a little confustion in describing it in English. Cuong. ----- Original Message ----- From: vitorflash To: audacity4blind@xxxxxxxxxxxxx Sent: Thursday, January 08, 2015 4:35 PM Subject: [audacity4blind] Sync-Lock Tracks functionality Hello. Does any one hwo works with several tracks at the same time know what Sync-Lock Tracks means? As i’m using various tracks in a project at the same time, i would like to understand this concept. Thank you Vitor -------------- Dang Manh Cuong The Assistive technology specialist Sao Mai Vocational and assistive center for the blind 74/17 Bui Quang La, ward 12, Go Vap Dst, HCMC, Vietnam Tel: +84862573309 E-mail: trungtamsaomai2001@xxxxxxxxx saomai.congnghe@xxxxxxxxx Facebook: https://www.facebook.com/SaoMaiCenter Website: http://www.saomaicenter.org http://www.sinhvienkhiemthi.org Mobile: +84 902-572-300 E-mail: dangmanhcuong@xxxxxxxxx Yahoo! ID: manhcuong0312 Skype name: dangmanhcuong facebook: http://facebook.com/dangmanhcuong Twitter: @ManhCuongTech Website: http://ngoisaodanduong.com Projec-Website: http://dangmanhcuong.googlecode.com