- void copy_from (AudioBuffers const * from, int frames_to_copy, int read_offset, int write_offset);
- void move (int from, int to, int frames);
+ void copy_from (AudioBuffers const * from, int32_t frames_to_copy, int32_t read_offset, int32_t write_offset);
+ void copy_channel_from (AudioBuffers const * from, int from_channel, int to_channel);
+ void move (int32_t frames, int32_t from, int32_t to);