I dont think Fritz makes auditory comments for analysis, but it will make snide comments during regular play. Not sure how this works because I never bothered with it.
For analysis a lot depends on a) the time you allow it to evaluate a move and b) the threshold you have it set at. The threshold is its evaluation in 100ths of a Pawn. For example if you have it set for .25 (1/4 of a P) it will show only moves it considers better than that.
Also Fritz (or any engine for that matter) does not plan but will point out tactical errors and moves it considers better positionally. You need to be aware that sometimes, due to limitations on time and its horizon (how far ahead it sees in the given time) it may not always choose the absolute best move. In any case when it comes to positional planning, it will not tell you why one move is better than another...you have to figure that out for yourself.
Normally I set it for 60 seconds per move and the threshold at .25. This game was analyzed at 6 seconds/move just to show you what you should be getting.
JacksonWShowalter - Cates [D02]
Club Game, 2005
[Fritz 6 (6s)]
D02: 1 d4 d5 2 Nf3 sidelines, including 2...Nf6 3 g3 and 2...Nf6 3 Bf4 1.d4 d5 2.Nf3 Nc6 3.Bg5N [3.c4 e6 4.Nc3 Nf6 5.Bg5 Be7 6.e3 a6 7.a3 h6 8.Bh4 Ng4 9.Bxe7 Nxe7 10.h3 Nf6 11.c5 Nc6 12.Bd3 Qe7 13.00 00 14.b4 b5 15.Qb3 Bd7 16.a4 Na7 17.axb5 Nxb5 18.Nxb5 Bxb5 19.Ra3 c6 20.Bxb5 axb5 21.Rfa1 Qb7 22.Ne5 Rxa3 23.Qxa3 Nd7 24.Nd3 f6 25.Qa7 Qc8 26.Qa3 Kf7 27.Qb2 Qb7 28.Qa3 Rb8 29.Qa6 Ke7 30.Qxb7 Rxb7 31.Ra5 e5 32.Nc1 Nb8 33.Nb3 Kd7 34.Ra8 Kc8 35.Na5 Rc7 36.Kf1 exd4 37.exd4 h5 38.f3 f5 39.f4 h4 40.Kf2 Rd7 41.Nxc6 Kb7 42.Nxb8 Rd8 43.Ra5 Kxb8 44.Rxb5+ 10 Berenbruch-Hartel/Frankfurt 1923 (44); 3.e3 Bg4 4.Bb5 e6 5.Nbd2 Bd6 6.c4 dxc4 7.Bxc6+ bxc6 8.Qa4 Ne7 9.Qxc4 00 10.00 Rb8 11.a3 Bh5 12.b4 Rb5 13.e4 Bf4 14.a4 Rb6 15.Ba3 f5 16.Rfe1 Bf7 17.Rad1 e5 Bronstein,D-Aronson,L/Soviet-ch24 Moscow 1957/URS-ch/[JvR]/10 (40); 3.Bf4 Bf5 4.e3 (4.c4 e6 5.Nc3 Nf6 6.e3 Be7 7.c5 Nh5 8.Bb5 Nxf4 9.exf4 f6 10.Bxc6+ bxc6 11.Nh4 Bg6 12.Nxg6 hxg6 13.Qg4 Kf7 14.00 Rb8 15.Rfe1 Qd7 16.b3 f5 17.Qf3 Bf6 18.Rad1 Rh4 Voellmy,E-Lazard,F/Paris 1924/½½ (65)) 4...e6 5.Bd3 Nf6 6.Bxf5 exf5 7.Qd3 Ne4 8.Qb5 Qd7 9.00 b6 10.c4 Nb4 11.Nc3 c6 12.Qa4 dxc4 13.Ne5 Qe6 14.Nb5 Nd5 15.Nxa7 b5 16.Qa6 f6 17.Qb7 Rxa7 18.Qb8+ Ke7 19.Qxa7+ Ke8 20.Qa8+ Ke7 21.Nxc6+ Kd7 22.Qb7+ Ke8 23.f3 Nd6 24.Bxd6 Qxd6 25.e4 Nc7 26.e5 fxe5 27.dxe5 Qc5+ 28.Kh1 Ne6 29.Rad1 10 Euwe,M-Colle,E/Zutphen 1924 (29)] 3...h6 4.Bh4 g5 5.Bg3 Nf6 6.e3 Bg7 7.h3 Secures g4 7...Bf5 8.Bb5 Bd7 9.00 [9.Nc3 Nb4] 9...a6 [9...g4 10.hxg4 Bxg4 11.c4=] 10.Bd3 Nh5 [10...g4 11.hxg4 Bxg4 12.c4=] 11.Bh2 f5? [11...Nf6!? is an interesting idea 12.Ne5 Nxe5 13.Bxe5 g4 14.h4] 12.Ne5 [12.Nh4 Nf6 13.Nxf5 00+-] 12...Nf6± 13.Qf3 [13.c4 00±] 13...Nxe5 14.dxe5 g4 [14...Ne4!? has some apparent merit 15.Qh5+ Kf8 16.Bxe4 dxe4] 15.hxg4± Nxg4 16.Bxf5 [16.Qxd5?! e6 17.Qd4 Nxh2 18.Kxh2 Rg8=] 16...Nxh2?? Black has lost his nerve... understandable when you consider his position [16...Bxf5 17.Qxf5 Nxh2±] 17.Bg6# 10