Play sound loop

[pauld1217]

is there anyway to play a sound file continuously then later stop using console commands? I have a slowmo mod ([url]http://www.fpsbanana.com/tools/4278[/url]) and I want it to play the l4d2 heartbeat sound located in:

C:\Program Files\Steam\steamapps\Common\left 4 dead 2\left4dead2\sound\player\heartbeatloop.wav

Here's what the configs look like (each quoted "title" is a new cfg file)

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"Slowmo_Master"

sv_cheats 1
alias "take10" "wait; wait; wait; wait; wait; wait; wait; wait; wait; wait"
alias "sm_on" "exec slow1.cfg"
alias "sm_off" "exec fast2.cfg"
alias "sm_stop" "exec slow2.cfg"
alias "sm_restart" "exec fast1.cfg"
alias "slowmo_on" "play slow.wav; take10; host_timescale .75; take10; host_timescale .40; take10; host_timescale .40; sm_off"
alias "slowmo_off" "play fast.wav; take10; host_timescale .40; take10; host_timescale .75; take10; host_timescale 1; sm_on"
alias "slowmo_stop" "host_timescale .00001; sm_restart"
alias "slowmo_restart" "host_timescale 1; sm_stop"
exec slow1.cfg
exec slow2.cfg

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"Slow1"
bind "v" "slowmo_on"

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"Slow2"
bind "b" "slowmo_stop"

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"Fast1"
bind "b" "slowmo_restart"

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"Fast2"
bind "v" "slowmo_off"

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Id like the heartbeatloop.wav to loop only when in slowmo but have no idea how. After searching through google for 1.5 hours and finding nothing, I gave up. Anyone know how?